Jump to Main Content
PubAg
Main content area
Search
Search Results
- Author:
- Lin, Hongjun; Zhang, Meijia; Wang, Fangyuan; Meng, Fangang; Liao, Bao-Qiang; Hong, Huachang; Chen, Jianrong; Gao, Weijue
- Source:
- Journal of membrane science 2014 v.460 pp. 110-125
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; adhesion; artificial membranes; dewatering; flocculation; fouling; hydrophobicity; sludge; Show all 8 Subjects
- Abstract:
- ... Extracellular polymeric substances (EPSs) are key biological substances, which largely determine properties of sludge flocs, including hydrophobicity, adhesion, flocculation, settling and dewatering properties, and therefore significantly affect membrane fouling in membrane bioreactors (MBRs). Much progress has been achieved in understanding of EPSs and their interrelations with membrane fouling d ...
- DOI:
- 10.1016/j.memsci.2014.02.034
-
http://dx.doi.org/10.1016/j.memsci.2014.02.034
- Author:
- Oishi, H.; Kaneko, H.; Funatsu, K.
- Source:
- Journal of membrane science 2015 v.494 pp. 86-91
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; case studies; cleaning; data collection; filtration; fouling; prediction; statistical models; water quality; Show all 10 Subjects
- Abstract:
- ... Fouling is one of the most significant problems in membrane bioreactors (MBRs). Membranes must be washed with chemicals at appropriate times before severe fouling occurs. Long-term transmembrane pressure (TMP) prediction is attempted to plan the schedule for chemical cleaning. TMP is directly proportional to membrane resistance caused by fouling under the condition of constant-rate filtration. Sta ...
- DOI:
- 10.1016/j.memsci.2015.07.002
-
http://dx.doi.org/10.1016/j.memsci.2015.07.002
- Author:
- Johnson, Daniel; Galiano, Francesco; Deowan, Shamim Ahmed; Hoinkis, Jan; Figoli, Alberto; Hilal, Nidal
- Source:
- Journal of membrane science 2015 v.484 pp. 35-46
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; adhesion; artificial membranes; coatings; contact angle; distillation; emulsions; energy use and consumption; fouling; humic acids; hydrophilicity; hydrophobic bonding; hydrophobicity; liquids; models; nanofiltration; operating costs; polymers; reverse osmosis; Show all 19 Subjects
- Abstract:
- ... Fouling of membrane surfaces by organic, inorganic and biological materials is a significant cause of increased operational costs and power consumption for membrane separation processes including reverse osmosis, nanofiltration, membrane bioreactors and membrane distillation. Novel polymeric membrane surfaces are being developed by numerous research groups to counter foulant attachment and build u ...
- DOI:
- 10.1016/j.memsci.2015.03.018
-
http://dx.doi.org/10.1016/j.memsci.2015.03.018
- Author:
- Dong, Ying; Wang, Zhiwei; Zhu, Chaowei; Wang, Qiaoying; Tang, Jixu; Wu, Zhichao
- Source:
- Journal of membrane science 2014 v.471 pp. 192-200
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Fourier transform infrared spectroscopy; aluminum; ammonium; artificial membranes; calcium; chemical oxygen demand; cleaning; confocal laser scanning microscopy; filtration; fouling; iron; landfill leachates; magnesium; mathematical models; membrane permeability; osmosis; polysaccharides; potassium; proteins; silicon; sodium; Show all 22 Subjects
- Abstract:
- ... Filtration behaviors, membrane fouling and cleaning were investigated in a forward osmosis (FO) membrane system used to post-treat the effluent of a membrane bioreactor (MBR) fed with landfill leachate (LFL). In short-term tests, it was observed that the water flux with the membrane active layer facing the draw solution (AL-DS mode) was lower than that with the membrane active layer facing the fee ...
- DOI:
- 10.1016/j.memsci.2014.08.023
-
http://dx.doi.org/10.1016/j.memsci.2014.08.023
- Author:
- Banti, Dimitra C.; Karayannakidis, Panayotis D.; Samaras, Petros; Mitrakas, Manassis G.
- Source:
- Journal of membrane science 2017 v.542 pp. 430-438
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; artificial membranes; bacteria; chemical oxygen demand; dissolved oxygen; fouling; porosity; wastewater treatment; Show all 9 Subjects
- Abstract:
- ... Membrane bioreactors (MBR) constitute an advanced wastewater treatment technology over conventional activated sludge processes, however, membrane fouling remains the basic obstacle preventing their universal application. Extended research has been carried out on this issue but an optimal solution has not yet been found. This research proposes an innovative solution to mitigate membrane fouling by ...
- DOI:
- 10.1016/j.memsci.2017.08.034
-
https://dx.doi.org/10.1016/j.memsci.2017.08.034
- Author:
- Vera, Luisa; González, Enrique; Díaz, Oliver; Delgado, Sebastián
- Source:
- Journal of membrane science 2014 v.470 pp. 504-512
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aeration; artificial membranes; carbon; cleaning; filtrates; fouling; sludge; Show all 8 Subjects
- Abstract:
- ... An alternative backwashing strategy to enhance water productivity in a tertiary submerged membrane bioreactor (MBR) was assayed. This strategy is based on automatically adjustment of the backwashing frequency as a function of the membrane fouling, which is expected to increase the net permeate flux produced. The effect of the key operational parameter (transmembrane pressure set-point, TMPsp) on m ...
- DOI:
- 10.1016/j.memsci.2014.07.069
-
http://dx.doi.org/10.1016/j.memsci.2014.07.069
- Author:
- Wong, Philip Chuen Yung; Lee, Jia Yi; Teo, Chee Wee
- Source:
- Journal of membrane science 2015 v.491 pp. 99-109
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; fouling; gels; hydrolases; hydrolysis; hydrophobicity; immobilized enzymes; microfiltration; protein content; sludge; Show all 11 Subjects
- Abstract:
- ... Enhancing the hydrolysis of microbial macromolecules by supplementing exogenous hydrolases may improve membrane performance via structural disruptions of fouling layers and alterations to sludge characteristics. This was investigated by short batch filtration (<1h) and 30-day extended filtration experiments using laboratory-scale anaerobic membrane bioreactors. Crude hydrolases were either dispers ...
- DOI:
- 10.1016/j.memsci.2015.05.022
-
http://dx.doi.org/10.1016/j.memsci.2015.05.022
- Author:
- Kim, Youngjin; Li, Sheng; Chekli, Laura; Woo, Yun Chul; Wei, Chun-Hai; Phuntsho, Sherub; Ghaffour, Noreddine; Leiknes, TorOve; Shon, Ho Kyong
- Source:
- Journal of membrane science 2017 v.533 pp. 84-95
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; cleaning; fertilizers; fouling; magnesium ammonium phosphate; mass transfer; osmosis; pollutants; potassium chloride; Show all 10 Subjects
- Abstract:
- ... In this study, the behavior of organic micro-pollutants (OMPs) transport including membrane fouling was assessed in fertilizer-drawn forward osmosis (FDFO) during treatment of the anaerobic membrane bioreactor (AnMBR) effluent. The flux decline was negligible when the FO membrane was oriented with active layer facing feed solution (AL-FS) while severe flux decline was observed with active layer fa ...
- DOI:
- 10.1016/j.memsci.2017.03.027
-
https://dx.doi.org/10.1016/j.memsci.2017.03.027
- Author:
- Tian, Yu; Ji, Chao; Wang, Kai; Le-Clech, Pierre
- Source:
- Journal of membrane science 2014 v.450 pp. 242-248
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; bioelectricity; chemical oxygen demand; cost effectiveness; energy recovery; fouling; microbial fuel cells; microfiltration; nitrates; resistors; wastewater treatment; zeta potential; Show all 13 Subjects
- Abstract:
- ... Microbial fuel cells (MFCs) have a great potential for cost-effective wastewater treatment; however, the effluent quality from MFC is not always satisfied. In this study, an anaerobic membrane bio-electrochemical reactor (AnMBER) with an anaerobic membrane bioreactor (AnMBR) equipped with hollow-fiber microfiltration (MF) membranes directly serving as the cathodic chamber of a dual-chamber MFC was ...
- DOI:
- 10.1016/j.memsci.2013.09.013
-
http://dx.doi.org/10.1016/j.memsci.2013.09.013
- Author:
- Chung, Chong Min; Yamamoto, Kazuo; Cho, Kangwoo
- Source:
- Journal of membrane science 2019
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; anodes; artificial membranes; cages; chlorination; chlorine; cleaning; electrochemistry; energy use and consumption; fabrics; fouling; hydraulic resistance; microbial communities; microfiltration; nitrification; oxidation; restriction fragment length polymorphism; total nitrogen; Show all 18 Subjects
- Abstract:
- ... This study reports that electrochemical oxidation (EO) coupled with non-woven fabric (NWF) filter synergistically mitigated fouling in a submerged membrane bioreactor (MBR) under hydraulic retention time (HRT) of 1 h. Our NWF-EO-MBR was equipped with NWF prefilter cage surrounding microfiltration (MF) membrane with IrO2 anodes in vicinity. Continuous operation showed a retarded increase of transme ...
- DOI:
- 10.1016/j.memsci.2019.117355
-
https://dx.doi.org/10.1016/j.memsci.2019.117355
- Author:
- Xiao, Kang; Shen, Yue-xiao; Liang, Shuai; Liang, Peng; Wang, Xiao-mao; Huang, Xia
- Source:
- Journal of membrane science 2014 v.467 pp. 206-216
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; acids; adsorption; artificial membranes; fouling; gels; hydrophilicity; hydrophobicity; microfiltration; models; molecular weight; porosity; sludge; wastewater treatment; Show all 14 Subjects
- Abstract:
- ... Membrane fouling remains a challenge for membrane bioreactor (MBR) application to wastewater treatment. The hydrophilic/hydrophobic organics present in MBR sludge supernatant form an important part of foulant. Their effects on fouling evolution and irreversibility were systematically investigated in this study. The organics, as fractionated into hydrophilic substances (HIS), hydrophobic acids (HOA ...
- DOI:
- 10.1016/j.memsci.2014.05.030
-
http://dx.doi.org/10.1016/j.memsci.2014.05.030
- Author:
- Jun, Dukwoo; Kim, Youngo; Hafeznezami, Saeedreza; Yoo, Kwansun; Hoek, Eric M.V.; Kim, Jeonghwan
- Source:
- Journal of membrane science 2017 v.543 pp. 342-350
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; calcium; citric acid; cleaning; dolomite; food waste; fouling; hydroxyapatite; ions; leachates; magnesium; magnesium ammonium phosphate; membrane permeability; methanogens; mineralization; models; organic matter; phosphorus; spectral analysis; ultrafiltration; Show all 21 Subjects
- Abstract:
- ... Herein, we report on a mechanism of inorganic fouling observed in a pilot-scale anaerobic membrane bioreactor (AnMBR) treating high strength leachate from domestic food waste. Long-term operation (around 700 days) of the AnMBR encountered frequent, sudden irreversible fouling events driven by biologically induced mineral scaling which required intense chemical cleaning to recover membrane permeabi ...
- DOI:
- 10.1016/j.memsci.2017.08.025
-
https://dx.doi.org/10.1016/j.memsci.2017.08.025
- Author:
- Fortunato, Luca; Li, Muxingzi; Cheng, Tuoyuan; Rehman, Zahid Ur; Heidrich, Wolfgang; Leiknes, TorOve
- Source:
- Journal of membrane science 2019 v.578 pp. 163-171
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; aeration; artificial membranes; confocal laser scanning microscopy; fouling; image analysis; monitoring; roughness; tomography; wastewater treatment; Show all 11 Subjects
- Abstract:
- ... Activated Sludge Membrane Bioreactors (AS-MBR) are recognized as a commercially competitive alternative to conventional wastewater treatments. However, membrane fouling remains one of the main challenges and disadvantages of the process. This study evaluates the suitability of Optical Coherence Tomography (OCT) in monitoring the cake layer development in-situ in AS-MBR under continuous operation. ...
- DOI:
- 10.1016/j.memsci.2019.02.026
-
https://dx.doi.org/10.1016/j.memsci.2019.02.026
- Author:
- Liu, Xuefei; Wang, Yuan; Shi, Yuerong; Li, Qiyuan; Dai, Pan; Guan, Jing; Waite, T. David; Leslie, Greg
- Source:
- Journal of membrane science 2019 v.570-571 pp. 146-155
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; aeration; air; artificial membranes; bubbles; cameras; fouling; mass flow; model validation; models; nozzles; prediction; shear stress; Show all 14 Subjects
- Abstract:
- ... The efficiency of slug flow for fouling control of flat sheet (FS) membrane bioreactors (MBRs) is hindered by uneven bubble distribution leading to inhomogeneous shear stress profile on the membrane. In this work, a 3D CFD model was developed enabling prediction of the hydraulic performance of a novel aeration system designed to reduce the uneven bubble distribution in a full-scale FS MBR. Bubbles ...
- DOI:
- 10.1016/j.memsci.2018.10.040
-
https://dx.doi.org/10.1016/j.memsci.2018.10.040
- Author:
- Ramos, C.; Zecchino, F.; Ezquerra, D.; Diez, V.
- Source:
- Journal of membrane science 2014 v.458 pp. 179-188
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; air; artificial membranes; cleaning; filtration; food industry; fouling; oils; sodium hypochlorite; wastewater; wastewater treatment; Show all 11 Subjects
- Abstract:
- ... Different chemical cleaning methods were applied to hollow-fiber membranes from an anaerobic membrane bioreactor (AnMBR) treating wastewater with a high oil and grease content. Chemical cleaning methods were assayed in a pilot-scale AnMBR and on single fouled fibers. The effectiveness of the cleaning processes was determined on the basis of overall resistance due to external irreversible fouling a ...
- DOI:
- 10.1016/j.memsci.2014.01.067
-
http://dx.doi.org/10.1016/j.memsci.2014.01.067
- Author:
- Lim, Sungil; Tran, Van Huy; Akther, Nawshad; Phuntsho, Sherub; Shon, Ho Kyong
- Source:
- Journal of membrane science 2019 v.586 pp. 281-291
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; cleaning; fouling; molecular weight; osmosis; polyamides; polymerization; sodium chloride; solutes; surface roughness; thin film composite membranes; Show all 11 Subjects
- Abstract:
- ... This study presents the successful fabrication of a novel defect-free outer-selective hollow fiber (OSHF) thin-film composite (TFC) membrane for forward osmosis (FO) applications. Thin and porous FO membrane substrates made of polyether sulfone (PES) with a dense and smooth outer surface were initially fabricated at different air-gap distances. A modified vacuum-assisted interfacial polymerization ...
- DOI:
- 10.1016/j.memsci.2019.05.064
-
https://dx.doi.org/10.1016/j.memsci.2019.05.064
- Author:
- Li, Xin; Liu, Chang; Yin, Wenqiang; Chong, Tzyy Haur; Wang, Rong
- Source:
- Journal of membrane science 2019 v.584 pp. 309-323
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; cations; cleaning; crosslinking; fouling; glutaraldehyde; hydrophilicity; molecular weight; municipal wastewater; nanofiltration; permeability; reverse osmosis; water reuse; Show all 14 Subjects
- Abstract:
- ... Recent studies have confirmed the advantages of low-pressure nanofiltration (NF) membranes in integrated nanofiltration membrane bioreactor system followed by the reverse osmosis (RO) process for high recovery water reclamation. However, fouling of low-pressure NF membranes restricts their application in providing high quality feed to subsequent RO process. In this study, an antifouling low-pressu ...
- DOI:
- 10.1016/j.memsci.2019.05.013
-
https://dx.doi.org/10.1016/j.memsci.2019.05.013
- Author:
- Li, Yihua; Liu, Lifen; Yang, Fenglin
- Source:
- Journal of membrane science 2017 v.525 pp. 202-209
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated carbon; artificial membranes; carbon fibers; cathodes; chemical oxygen demand; electrochemistry; energy conservation; fouling; hydrogen peroxide; hydroxyl radicals; microbial fuel cells; models; pollutants; tetracycline; thermoplastics; wastewater treatment; Show all 17 Subjects
- Abstract:
- ... In this study, membrane bioreactor (MBR) and microbial fuel cell (MFC) was coupled for wastewater treatment using a polyvinylidene fluoride (PVDF) coated carbon fiber cloth as cathode membrane. To generate more power and mitigate membrane fouling, granular activated carbon (GAC) was added as a dynamic layer on cathode membrane. With or without FeOOH/TiO2 doping on GAC, 2e⁻ or 4e⁻ oxygen reduction ...
- DOI:
- 10.1016/j.memsci.2016.10.047
-
https://dx.doi.org/10.1016/j.memsci.2016.10.047
- Author:
- Gu, Yangshuo; Chen, Lin; Ng, Jing-Wen; Lee, Changsoo; Chang, Victor W.-C.; Tang, Chuyang Y.
- Source:
- Journal of membrane science 2015 v.490 pp. 197-208
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; alkalinity; ammonia; artificial membranes; bioactive properties; chemical oxygen demand; energy recovery; fouling; methane; methane production; methanogens; nitrogen content; organic wastes; osmosis; pH; phosphorus; temperature; wastewater; wastewater treatment; Show all 19 Subjects
- Abstract:
- ... A novel anaerobic osmotic membrane bioreactor (AnOMBR) was developed for treating low-strength wastewater. The AnOMBR utilizes a forward osmosis (FO) membrane to retain influent organic waste, which facilitates anaerobic wastewater treatment and energy recovery in the form of methane gas. The feasibility of AnOMBR for treating low-strength wastewater at mesophilic temperature was evaluated and mem ...
- DOI:
- 10.1016/j.memsci.2015.04.032
-
http://dx.doi.org/10.1016/j.memsci.2015.04.032
- Author:
- Boyle-Gotla, A.; Jensen, P.D.; Yap, S.D.; Pidou, M.; Wang, Y.; Batstone, D.J.
- Source:
- Journal of membrane science 2014 v.467 pp. 153-161
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; compressibility; filtration; fluid mechanics; fouling; simulation models; slaughterhouses; total solids; wastewater; Show all 10 Subjects
- Abstract:
- ... Existing membrane fouling models are limited to simple hydraulic profiles which is a limitation particularly for planar membranes. Here, we present a new model that allows for a distributed shear profile, with dynamic linking of flux and transmembrane pressure (TMP). Shear profile is calculated using a multi-phase computational fluid dynamic approach, and is applied to a distributed parameter mode ...
- DOI:
- 10.1016/j.memsci.2014.05.028
-
http://dx.doi.org/10.1016/j.memsci.2014.05.028
- Author:
- Wang, Jingwei; Fane, Anthony G.; Chew, Jia Wei
- Source:
- Journal of membrane science 2017 v.535 pp. 279-293
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated carbon; artificial membranes; bubbles; fouling; microfiltration; momentum; polystyrenes; video cameras; Show all 9 Subjects
- Abstract:
- ... Fouling control by bubbling is widely implemented in membrane bioreactors (MBRs), but a mechanistic understanding of the relationship between the bubble characteristics and critical flux is missing. This study is targeted at bridging the gap. A microfiltration setup employing bubbling as a means of fouling mitigation was set up. The direct observation through the membrane (DOTM) technique was used ...
- DOI:
- 10.1016/j.memsci.2017.04.047
-
https://dx.doi.org/10.1016/j.memsci.2017.04.047
- Author:
- Zhang, Meijia; Lin, Hongjun; Shen, Liguo; Liao, Bao-Qiang; Wu, Xilin; Li, Renjie
- Source:
- Journal of membrane science 2017 v.525 pp. 320-329
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; alginates; artificial membranes; calcium; filtration; fouling; gels; ions; microstructure; polymers; Show all 10 Subjects
- Abstract:
- ... In this study, effect of calcium ions on the filtration behaviors of alginate solution and its underlying mechanisms were systematically investigated. It was found that, the filtration resistance of the formed gel layer and the specific filtration resistance (SFR) of alginate solution showed an unimodal pattern with increase in Ca²⁺ concentration, and the maximal SFR was as extremely high as 3.63× ...
- DOI:
- 10.1016/j.memsci.2016.12.006
-
https://dx.doi.org/10.1016/j.memsci.2016.12.006
- Author:
- Wang, Hailong; Wang, Xinhua; Meng, Fangang; Li, Xiufen; Ren, Yueping; She, Qianhong
- Source:
- Journal of membrane science 2019 v.569 pp. 41-47
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; energy recovery; fouling; osmosis; sage; wastewater treatment; Show all 7 Subjects
- Abstract:
- ... Anaerobic osmotic membrane bioreactor (AnOMBR) has shown great promise for wastewater treatment and energy recovery. One of the major obstacles limiting the performance of the AnOMBR is the low water flux of forward osmosis (FO) membrane. Here, impacts of draw solution (DS) concentration on the performance of the AnOMBR were investigated for enhancing the water flux of FO membrane via controlling ...
- DOI:
- 10.1016/j.memsci.2018.10.010
-
https://dx.doi.org/10.1016/j.memsci.2018.10.010
- Author:
- Mu, Situ; Wang, Shu; Liang, Shuai; Xiao, Kang; Fan, Huiju; Han, Bingjun; Liu, Chun; Wang, Xiaomao; Huang, Xia
- Source:
- Journal of membrane science 2019 v.570-571 pp. 1-8
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; fluorescence; fouling; fractionation; hydrophobicity; molecular weight; multivariate analysis; polysaccharides; Show all 9 Subjects
- Abstract:
- ... Foulant hydrophobicity has been regarded as a key factor in membrane fouling. While hydrophobic/philic fractionation using DAX (or XAD) resin column has been extensively utilized in fouling studies, the critical retention factor (k’cr, the ratio of water volume to column volume) has been long neglected which can alter the definition and relative degree of “hydrophobicity” of the obtained fractions ...
- DOI:
- 10.1016/j.memsci.2018.10.023
-
https://dx.doi.org/10.1016/j.memsci.2018.10.023
- Author:
- Chen, Fu; Bi, Xuejun; Ng, How Yong
- Source:
- Journal of membrane science 2016 v.499 pp. 134-142
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Nitrospirae; artificial membranes; biopolymers; carbohydrates; fouling; microfiltration; molecular weight; municipal wastewater; total suspended solids; Show all 10 Subjects
- Abstract:
- ... Two moving bed membrane bioreactors (MBMBR) were compared with a conventional membrane bioreactor (MBR) to investigate the effects of bio-carriers on membrane fouling treating real domestic wastewater. Under the experimental conditions, membrane filtration operating time of the MBMBR (without the scouring of bio-carriers) was nearly 1.5 times extended when compared to the MBR. Furthermore, with th ...
- DOI:
- 10.1016/j.memsci.2015.10.052
-
https://dx.doi.org/10.1016/j.memsci.2015.10.052
- Author:
- Hua, Lap-Cuong; Huang, Chihpin; Su, Yu-Chun; Nguyen, Tran-Ngoc-Phu; Chen, Pei-Chung
- Source:
- Journal of membrane science 2015 v.495 pp. 29-36
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; adsorption; artificial membranes; bacteria; cleaning; compressibility; electric current; electrocoagulation; fouling; neutralization; oxidation; sludge; Show all 12 Subjects
- Abstract:
- ... Although much research effort has focused on methods to mitigate fouling of membrane bioreactors (MBRs), fouling is still inevitable. This paper aims to corroborate the roles of electro-coagulation approach within a coagulation-assisted MBR, termed electro-MBR. The effects of electro-coagulation on sludge characteristics and fouling behavior were investigated. A batch-scale experiment was carried ...
- DOI:
- 10.1016/j.memsci.2015.07.062
-
http://dx.doi.org/10.1016/j.memsci.2015.07.062
- Author:
- Meng, Fangang; He, Xiang
- Source:
- Journal of membrane science 2015 v.496 pp. 284-292
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Bacteroidetes; Fourier transform infrared spectroscopy; Nitrospirae; Thiothrix; Verrucomicrobia; artificial membranes; bacteria; bacterial communities; biopolymers; chemical oxygen demand; engineering; filtration; fouling; models; phosphorus; polysaccharides; sequence analysis; sludge; stormwater; wastewater; wastewater treatment; Show all 22 Subjects
- Abstract:
- ... Nonsettleable grit from wastewater streams is an important fraction of wastewater. In this study, the effects of model grit on the performance of the reactor, the characteristics of the sludge and the structure of the bacterial community in membrane bioreactors (MBRs) were explored. The results show that the presence of grit in the mixed liquor displayed no significant influence on the removal of ...
- DOI:
- 10.1016/j.memsci.2015.09.015
-
http://dx.doi.org/10.1016/j.memsci.2015.09.015
- Author:
- Christensen, Morten Lykkegaard; Bugge, Thomas Vistisen; Hede, Barbara Harling; Nierychlo, Marta; Larsen, Poul; Jørgensen, Mads Koustrup
- Source:
- Journal of membrane science 2016 v.504 pp. 176-184
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; filterability; filtration; fouling; protocols; sludge; Show all 7 Subjects
- Abstract:
- ... A lab-scale filtration cell was used to determine the optimum relaxation time for membrane bioreactor (MBR) membranes. Sludge from 15 plants was analysed with fixed filtration times and intermittent relaxations of decreasing durations. By determining the average flux, the optimum relaxation time was found to be 0.2–4min; therefore, the optimal relaxation time should be determined for the actual sl ...
- DOI:
- 10.1016/j.memsci.2016.01.006
-
https://dx.doi.org/10.1016/j.memsci.2016.01.006
- Author:
- Rongwong, Wichitpan; Goh, Kunli; Bae, Tae-Hyun
- Source:
- Journal of membrane science 2018 v.554 pp. 184-194
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; atmospheric pressure; biogas; carbon dioxide; cleaning; desorption; effluents; electric power; electricity; electricity generation; energy balance; fouling; liquids; mathematical models; methane; pumps; wastewater treatment; Show all 18 Subjects
- Abstract:
- ... This work presents an energy analysis and optimization of the hollow fiber membrane contactors for the recovery of dissolved methane (CH4) in effluents of anaerobic membrane bioreactor wastewater treatment processes. The obtained CH4 could be merged with biogas for further purification or used with a micro-turbine for electricity generation to achieve an energy self-sufficient wastewater treatment ...
- DOI:
- 10.1016/j.memsci.2018.03.002
-
https://dx.doi.org/10.1016/j.memsci.2018.03.002
- Author:
- Yang, Yue; Qiao, Sen; Zheng, Mingmei; Zhou, Jiti; Quan, Xie
- Source:
- Journal of membrane science 2019 v.582 pp. 335-341
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; adsorption; artificial membranes; cleaning; electrochemistry; electrodes; electrostatic interactions; fouling; glucose; microfiltration; permeability; phenol; pollutants; wastewater; wastewater treatment; Show all 15 Subjects
- Abstract:
- ... The membrane fouling control is still essential for membrane filtration system, e.g., membrane bioreactors (MBRs). Herein, a novel treatment system that combined electro-oxidation effect with membrane filtration process using CNTs-based hollow fiber membranes (CNTs-HFMs) themselves as electrode materials and basic separation system was developed to treat organic wastewater. Under electrochemical a ...
- DOI:
- 10.1016/j.memsci.2019.04.026
-
https://dx.doi.org/10.1016/j.memsci.2019.04.026
- Author:
- Luo, Wenhai; Hai, Faisal I.; Price, William E.; Elimelech, Menachem; Nghiem, Long D.
- Source:
- Journal of membrane science 2016 v.514 pp. 636-645
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; fouling; osmotic pressure; reverse osmosis; salinity; sodium acetate; sodium chloride; solutes; water reuse; Show all 10 Subjects
- Abstract:
- ... The performance of two ionic organic draw solutes, namely sodium acetate (NaOAc) and ethylene-diamine-tetra acetic acid disodium salt (EDTA-2Na), during osmotic membrane bioreactor (OMBR) operation was investigated in this study. Their performance was compared to that of sodium chloride (NaCl). A reverse osmosis (RO) process was integrated with OMBR to form an OMBR-RO hybrid system for draw solute ...
- DOI:
- 10.1016/j.memsci.2016.05.023
-
https://dx.doi.org/10.1016/j.memsci.2016.05.023
- Author:
- González, Enrique; Díaz, Oliver; Vera, Luisa; Rodríguez-Gómez, Luis E.; Rodríguez-Sevilla, Juan
- Source:
- Journal of membrane science 2018 v.552 pp. 243-252
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aeration; artificial membranes; energy; filtration; fouling; models; sludge; Show all 8 Subjects
- Abstract:
- ... Increasing permeate flux whilst maintaining energy demands at reasonable levels is of great interest for membrane bioreactors (MBRs) widespread application. One of the main issues for this is to develop effective fouling control strategies under dynamic conditions. This study proposes a filtration length-based feedback control system for optimal filtration performance. A pilot-scale tertiary MBR w ...
- DOI:
- 10.1016/j.memsci.2018.02.007
-
http://dx.doi.org/10.1016/j.memsci.2018.02.007
- Author:
- Díaz, Oliver; González, Enrique; Vera, Luisa; Macías-Hernández, José Juan; Rodríguez-Sevilla, Juan
- Source:
- Journal of membrane science 2017 v.525 pp. 368-377
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aeration; artificial membranes; bioactive properties; compressibility; dissolved oxygen; energy; filterability; filtration; fouling; models; oxygen; sludge; specific energy; Show all 14 Subjects
- Abstract:
- ... Operation of tertiary membrane bioreactors at low dissolved oxygen concentration (DO) reduces energy consumption associated with biological aeration. However, low oxygen concentrations affect biological activity, sludge bioflocculation and fouling propensity. This study assesses the effectiveness of an alternative backwash initiation strategy for fouling control in a tertiary membrane bioreactor o ...
- DOI:
- 10.1016/j.memsci.2016.12.014
-
https://dx.doi.org/10.1016/j.memsci.2016.12.014
- Author:
- Xie, Fang; Chen, Weiwei; Wang, Jianmin; Liu, Jinrong
- Source:
- Journal of membrane science 2015 v.495 pp. 361-371
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Fourier transform infrared spectroscopy; X-radiation; adsorption; artificial membranes; energy-dispersive X-ray analysis; flocculation; fouling; pollutants; scanning electron microscopy; turbulent flow; wastewater; Show all 12 Subjects
- Abstract:
- ... The aim of the present research is to investigate the effect of a corrugated micro-channel turbulence promoter with micro-pores (MCTP-MPs) on the fouling characteristics of a submerged flat-sheet membrane bioreactor and analyze the enhancement mechanisms of the corrugated MCTP-MPs. The characteristics of membrane foulants are critically examined by Fourier transform infrared (FT-IR) spectroscopy, ...
- DOI:
- 10.1016/j.memsci.2015.08.057
-
http://dx.doi.org/10.1016/j.memsci.2015.08.057
- Author:
- Yang, Yue; Qiao, Sen; Jin, Ruofei; Zhou, Jiti; Quan, Xie
- Source:
- Journal of membrane science 2018 v.553 pp. 54-62
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; bovine serum albumin; carbon nanotubes; cathodes; chemical oxygen demand; electric power; electrochemistry; fouling; gels; microfiltration; pollutants; sodium alginate; Show all 13 Subjects
- Abstract:
- ... Membrane fouling is a ubiquitous and costly problem for membrane bioreactor (MBR) that usually deteriorated membrane performance. Applied voltage on membrane is an important strategies mitigating the fouling. To evaluate antifouling mechanisms of electro-enhanced carbon nanotubes hollow-fiber membranes (CNTs-HFMs), the removal of bovine serum albumin (BSA), sodium alginate (SA) and supernatant of ...
- DOI:
- 10.1016/j.memsci.2018.02.012
-
https://dx.doi.org/10.1016/j.memsci.2018.02.012
- Author:
- Li, Tian; Law, Adrian Wing-Keung; Jiang, Yishuai; Harijanto, Agnes Kurniawati; Fane, Anthony G.
- Source:
- Journal of membrane science 2016 v.505 pp. 216-224
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aeration; artificial membranes; biosolids; bubbles; cleaning; energy conservation; fouling; microfiltration; nutrients; risk; shear stress; turbulent flow; vibration; Show all 14 Subjects
- Abstract:
- ... The present study further examines the effectiveness of transverse vibration for the fouling control of hollow fibre membranes in a submerged membrane bioreactor (SMBR) with real mixed liquor. The scope of the investigation included both short and long duration tests. The short duration tests incorporated both continuous and intermittent vibration in different concentrations of mixed liquor, and c ...
- DOI:
- 10.1016/j.memsci.2016.01.003
-
https://dx.doi.org/10.1016/j.memsci.2016.01.003
- Author:
- Lan, Yandi; Groenen-Serrano, Karine; Coetsier, Clémence; Causserand, Christel
- Source:
- Journal of membrane science 2017 v.524 pp. 288-298
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; calcium phosphates; fouling; hospitals; nanofiltration; permeability; silica; wastewater; Show all 9 Subjects
- Abstract:
- ... The optimization of permeate flux is a particularly interesting strategy to control fouling and, as a consequence, enhance productivity for nanofiltration (NF) processes. Critical flux, threshold flux and limiting flux theories represent significant advance in this strategy. The aim of this study was to apply these concepts to achieve fouling control during NF of a real complex matrix: hospital wa ...
- DOI:
- 10.1016/j.memsci.2016.11.001
-
https://dx.doi.org/10.1016/j.memsci.2016.11.001
- Author:
- Rongwong, Wichitpan; Goh, Kunli; Sethunga, G.S.M.D.P.; Bae, Tae-Hyun
- Source:
- Journal of membrane science 2019 v.573 pp. 534-543
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; desorption; effluents; fluorescence emission spectroscopy; fouling; liquids; mass transfer; methane; porosity; upflow anaerobic sludge blanket reactor; Show all 11 Subjects
- Abstract:
- ... Fouling in membrane contactors for recovery of dissolved methane (CH4) was investigated in this work. Two types of effluents from anaerobic membrane bioreactor (AnMBR) and upflow anaerobic sludge blanket (UASB) were tested under a continuous operational mode. Due to the higher fouling propensity of the UASB effluent, membrane fouling was more drastic, leading to a greater decline in the CH4 desorp ...
- DOI:
- 10.1016/j.memsci.2018.12.038
-
https://dx.doi.org/10.1016/j.memsci.2018.12.038
- Author:
- Düppenbecker, Bernhard; Engelhart, Markus; Cornel, Peter
- Source:
- Journal of membrane science 2017 v.537 pp. 69-82
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aluminum oxide; artificial membranes; ceramics; electric power; fouling; glass; mechanical properties; microfiltration; molecular weight; porosity; solutes; titanium dioxide; ultrafiltration; Show all 14 Subjects
- Abstract:
- ... The use of fluidized glass beads to mitigate fouling in a novel Anaerobic Membrane Bioreactor (AMBR) with external crossflow membrane was investigated in lab scale. Two ceramic ultrafiltration (UF) membranes with a molecular weight cut-off/pore size of 100kDa (ZrO2) and 0.05µm (Al2O3) and a 0.4µm pore-sized ceramic microfiltration (MF) membrane (TiO2) were tested for fouling behavior, mechanical r ...
- DOI:
- 10.1016/j.memsci.2017.05.018
-
https://dx.doi.org/10.1016/j.memsci.2017.05.018
- Author:
- Hazrati, Hossein; Jahanbakhshi, Nader; Rostamizadeh, Mohammad
- Source:
- Journal of membrane science 2018 v.555 pp. 455-462
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Fourier transform infrared spectroscopy; adsorption; artificial membranes; chromatography; crystal structure; fluorescence emission spectroscopy; fouling; gels; particle size distribution; polysaccharides; proteins; sludge; zeolites; Show all 14 Subjects
- Abstract:
- ... In this work, we synthesized two types of zeolite nano-adsorbents termed HZ1 and HZ2. For further improving the effluent quality and reduction of membrane fouling, these two synthesized zeolite nano-adsorbents were used in a membrane bioreactor (MBR). Particle size distribution (PSD), soluble microbial products (SMP), and extracellular polymeric substance (EPS) for sludge were measured. In additio ...
- DOI:
- 10.1016/j.memsci.2018.03.076
-
https://dx.doi.org/10.1016/j.memsci.2018.03.076
- Author:
- Du, Fei; Hawari, Alaa H.; Larbi, Bouthaina; Ltaief, Amina; Pesch, Georg R.; Baune, Michael; Thöming, Jorg
- Source:
- Journal of membrane science 2018 v.549 pp. 466-473
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; biological treatment; dielectrophoresis; electric power; electrodes; energy efficiency; fouling; prediction; simulation models; specific energy; wastewater; water shortages; Show all 13 Subjects
- Abstract:
- ... Submerged membrane bioreactor (MBR) is currently believed to be an efficient biological treatment for reusing and recovering wastewater to extenuate the ever increasing water scarcity crisis. To mitigate the main problem, membrane fouling, in MBR systems, we propose a solution that avoids usage of chemicals, and allows uninterrupted operation using a novel concept of obstacle dielectrophoresis (oD ...
- DOI:
- 10.1016/j.memsci.2017.12.049
-
https://dx.doi.org/10.1016/j.memsci.2017.12.049
- Author:
- Li, Yihua; Liu, Lifen; Yang, Fenglin
- Source:
- Journal of membrane science 2016 v.505 pp. 130-137
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; bioelectricity; carbon fibers; catalysts; catalytic activity; cathodes; coatings; electrochemistry; energy; ethylene glycol; fouling; microbial fuel cells; nanoparticles; porosity; wastewater treatment; Show all 16 Subjects
- Abstract:
- ... In this study, a catalytic cathode membrane based on carbon fiber cloth was successfully prepared, and it integrated microbial fuel cell (MFC) with membrane bioreactor (MBR). Nanoparticle Pd-RGO-CoFe2O4 catalyst was synthesized in one-step, using ethylene glycol as reduction agent, and assisted by microwave reduction. It was coated with polyvinylidene fluoride (PVDF) binder on carbon fiber cloth, ...
- DOI:
- 10.1016/j.memsci.2016.01.038
-
https://dx.doi.org/10.1016/j.memsci.2016.01.038
- Author:
- Wang, K.M.; Cingolani, D.; Eusebi, A.L.; Soares, A.; Jefferson, B.; McAdam, E.J.
- Source:
- Journal of membrane science 2018 v.555 pp. 125-133
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; compressibility; energy; filtration; fouling; municipal wastewater; wastewater treatment; Show all 8 Subjects
- Abstract:
- ... In this study, conventional and novel gas sparging regimes have been evaluated for a municipal wastewater granular anaerobic MBR to identify how best to achieve high sustainable fluxes whilst simultaneously conserving energy demand. Using continuous gas sparging in combination with continuous filtration, flux was strongly dependent upon shear rate, which imposed a considerable energy demand. Inter ...
- DOI:
- 10.1016/j.memsci.2018.03.032
-
https://dx.doi.org/10.1016/j.memsci.2018.03.032
- Author:
- Ozgun, Hale; Gimenez, Juan B.; Ersahin, Mustafa Evren; Tao, Yu; Spanjers, Henri; van Lier, Jules B.
- Source:
- Journal of membrane science 2015 v.479 pp. 95-104
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; chemical oxygen demand; fouling; microbial communities; municipal wastewater; particle size distribution; sequence analysis; sludge; total suspended solids; upflow anaerobic sludge blanket reactor; Show all 11 Subjects
- Abstract:
- ... In this study, the impact of membrane incorporation for effluent extraction on the performance of an upflow anaerobic sludge blanket (UASB) reactor treating municipal wastewater was investigated in terms of system performance and sludge characteristics. A laboratory-scale system was operated in two different operational stages: (i) as a sole UASB reactor and (ii) as an anaerobic membrane bioreacto ...
- DOI:
- 10.1016/j.memsci.2014.12.021
-
http://dx.doi.org/10.1016/j.memsci.2014.12.021
- Author:
- Fan, Huiju; Xiao, Kang; Mu, Situ; Zhou, Yue; Ma, Jianbo; Wang, Xiaomao; Huang, Xia
- Source:
- Journal of membrane science 2018 v.556 pp. 312-320
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; adsorption; artificial membranes; cleaning; confocal laser scanning microscopy; fouling; hydrophilicity; hydrophobicity; microfiltration; models; polysaccharides; proteins; statistical analysis; Show all 13 Subjects
- Abstract:
- ... This study investigated the impact of membrane pore morphology on repeated fouling and physical cleaning behavior during > 1000 h operation of a membrane bioreactor process. Four microfiltration membranes with different backbone polymers (PVDF and PTFE) and varied hydrophobicity, operated in parallel, were compared. The PVDF membranes presented a porous particulate-packing morphology, while the PT ...
- DOI:
- 10.1016/j.memsci.2018.04.014
-
http://dx.doi.org/10.1016/j.memsci.2018.04.014
- Author:
- Lousada-Ferreira, Maria; van Lier, Jules B.; van der Graaf, Jaap H.J.M.
- Source:
- Journal of membrane science 2015 v.476 pp. 68-75
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; artificial membranes; filterability; filtration; fouling; particle size distribution; total suspended solids; Show all 8 Subjects
- Abstract:
- ... The relation between activated sludge filterability and mixed liquor suspended solids (MLSS) concentration in membrane bioreactors (MBRs) is framed in a single hypothesis, explaining results seemingly contradictory. A total of 44 activated sludge samples were collected and analyzed on a variety of parameters, i.e. filterability, MLSS concentration, soluble microbial products (SMP) concentrations a ...
- DOI:
- 10.1016/j.memsci.2014.11.012
-
http://dx.doi.org/10.1016/j.memsci.2014.11.012
- Author:
- Kappel, C.; Kemperman, A.J.B.; Temmink, H.; Zwijnenburg, A.; Rijnaarts, H.H.M.; Nijmeijer, K.
- Source:
- Journal of membrane science 2014 v.453 pp. 359-368
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; artificial membranes; cleaning; fouling; humic acids; nanofiltration; viruses; wastewater; wastewater treatment; water reuse; water shortages; Show all 12 Subjects
- Abstract:
- ... As water shortages are increasing, the need for sustainable water treatment and the reuse of water is essential. Water reuse from wastewater can be accomplished in a membrane bioreactor (MBR) in the secondary activated sludge stage of a wastewater treatment plant. To remove viruses, dissolved organics and inorganics still present in the MBR permeate, nanofiltration (NF) can be applied. Nevertheles ...
- DOI:
- 10.1016/j.memsci.2013.11.023
-
http://dx.doi.org/10.1016/j.memsci.2013.11.023
- Author:
- Nittami, Tadashi; Tokunaga, Hiroshi; Satoh, Akihito; Takeda, Minoru; Matsumoto, Kanji
- Source:
- Journal of membrane science 2014 v.463 pp. 183-189
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; adhesion; artificial membranes; contact angle; fouling; hydrophilicity; hydrophobicity; inoculum; municipal wastewater; polytetrafluoroethylene; wastewater treatment; Show all 12 Subjects
- Abstract:
- ... This study focused on how membrane surface hydrophilicity affects fouling in a membrane bioreactor. A lab-scale membrane bioreactor incorporating immersed polytetrafluoroethylene flat-sheet membrane modules with different contact angles (approximately 70° and 130°) was operated using the inocula activated sludge taken from a lab reactor and from a municipal wastewater treatment plant (WWTP). The r ...
- DOI:
- 10.1016/j.memsci.2014.03.064
-
http://dx.doi.org/10.1016/j.memsci.2014.03.064
- Author:
- Chaiprapat, Sumate; Thongsai, Araya; Charnnok, Boonya; Khongnakorn, Watsa; Bae, Jaeho
- Source:
- Journal of membrane science 2016 v.509 pp. 116-124
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated carbon; artificial membranes; biogas; chemical oxygen demand; energy; fish industry; fouling; liquids; scanning electron microscopy; seafoods; upflow anaerobic sludge blanket reactor; wastewater; Show all 13 Subjects
- Abstract:
- ... Anaerobic membrane bioreactor was used to treat the effluent from an industrial UASB reactor receiving seafood processing wastewater. Operation in liquid circulation (LQ) was compared with the addition of granular activated carbon (LQ+GAC) and the introduction of biogas to partially replace the liquid recirculation flow (LQr+GAC+G). In all treatments, COD was removed to well under the secondary ef ...
- DOI:
- 10.1016/j.memsci.2016.02.029
-
https://dx.doi.org/10.1016/j.memsci.2016.02.029
- Author:
- Wang, Zhiwei; Huang, Fei; Mei, Xiaojie; Wang, Qiaoying; Song, Hongyang; Zhu, Chaowei; Wu, Zhichao
- Source:
- Journal of membrane science 2014 v.471 pp. 258-264
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Chlorobiales; Gemmatimonadaceae; Nitrosomonadaceae; Nitrospiraceae; Rhodoplanes; Xanthomonadaceae; adverse effects; ammonium; artificial membranes; biological treatment; carbonate minerals; denitrifying bacteria; fouling; gels; long term effects; microbial communities; microfiltration; nanoparticles; nitrites; pollutants; sequence analysis; wastewater; water quality; zinc oxide; Show all 25 Subjects
- Abstract:
- ... The role of environmental nanoparticle pollutants (ENPs) in wastewater biological treatment has attracted considerable attention in recent years, while the long-term impacts of ENPs on membrane bioreactor (MBR) performance remain unclear. In this study, zinc oxide (ZnO) nanoparticles were continuously introduced into an MBR system to evaluate their long-term effects. In general, the results showed ...
- DOI:
- 10.1016/j.memsci.2014.08.024
-
http://dx.doi.org/10.1016/j.memsci.2014.08.024
- Author:
- Wang, Zhiwei; Ma, Jinxing; Tang, Chuyang Y.; Kimura, Katsuki; Wang, Qiaoying; Han, Xiaomeng
- Source:
- Journal of membrane science 2014 v.468 pp. 276-307
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; cleaning; fouling; protocols; wastewater treatment; Show all 6 Subjects
- Abstract:
- ... Membrane bioreactors (MBRs) have been widely used in wastewater treatment and reclamation. Membrane cleaning is an essential part during the operation of MBRs since membrane fouling is an unavoidable problem. In past decades, with the in-depth understanding on membrane fouling, significant advances in membrane cleaning have been achieved. However, a comprehensive review on membrane cleaning in MBR ...
- DOI:
- 10.1016/j.memsci.2014.05.060
-
http://dx.doi.org/10.1016/j.memsci.2014.05.060
- Author:
- Hong, Huachang; Lin, Hongjun; Mei, Rongwu; Zhou, Xiaoling; Liao, Bao-Qiang; Zhao, Leihong
- Source:
- Journal of membrane science 2016 v.516 pp. 135-143
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; energy; fouling; fractal dimensions; models; Show all 6 Subjects
- Abstract:
- ... A novel method was developed to construct membrane surface morphology in this study. The method was based on fractal geometry theory, and involved a modified Weierstrass-Mandelbrot (WM) function for modeling surface topography. With MATLAB programming, membrane surface could be graphically modeled. It was found that the fractal dimension (Df) and cutoff frequency (Ls) were the two key parameters a ...
- DOI:
- 10.1016/j.memsci.2016.06.006
-
https://dx.doi.org/10.1016/j.memsci.2016.06.006
- Author:
- Zhang, Jie; Wang, Qiaoying; Wang, Zhiwei; Zhu, Chaowei; Wu, Zhichao
- Source:
- Journal of membrane science 2014 v.466 pp. 293-301
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Gibbs free energy; additives; adsorption; artificial membranes; cohesion; contact angle; energy; filtration; fluorides; fouling; hydrophilicity; permeability; polyvinyl alcohol; porosity; wastewater treatment; Show all 16 Subjects
- Abstract:
- ... The modification of poly(vinylidene fluoride)/polyethersulfone (PVDF/PES) blend membranes was carried out by adding polyvinyl alcohol (PVA) to improve their antifouling ability. The physicochemical characteristics of the membranes in terms of porosity, contact angle, pure water flux, critical flux and fouling rate were systematically analyzed. The extended Derjaguin–Landau–Verwey–Overbeek (XDLVO) ...
- DOI:
- 10.1016/j.memsci.2014.05.006
-
http://dx.doi.org/10.1016/j.memsci.2014.05.006
- Author:
- Hu, Yisong; Wang, Xiaochang C.; Yu, ZhenZhen; Ngo, Huu Hao; Sun, Qiyuan; Zhang, Qionghua
- Source:
- Journal of membrane science 2016 v.510 pp. 10-17
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Fourier transform infrared spectroscopy; X-radiation; artificial membranes; biochemical pathways; cations; chemical analysis; energy-dispersive X-ray analysis; filtration; fouling; microbial activity; oxygen; particle size distribution; polysaccharides; proteins; scanning electron microscopy; sludge; Show all 17 Subjects
- Abstract:
- ... Cake sludge attached on membrane surfaces was collected and characterized in a full scale membrane bioreactor (MBR) compared with bulk sludge. The morphological, chemical and microbial properties were examined through microscopic observations, particle size distribution (PSD) analysis, chemical analysis, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and energy- ...
- DOI:
- 10.1016/j.memsci.2016.02.058
-
https://dx.doi.org/10.1016/j.memsci.2016.02.058
- Author:
- Deowan, Shamim Ahmed; Galiano, Francesco; Hoinkis, Jan; Johnson, Daniel; Altinkaya, Sacide Alsoy; Gabriele, Bartolo; Hilal, Nidal; Drioli, Enrico; Figoli, Alberto
- Source:
- Journal of membrane science 2016 v.510 pp. 524-532
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; antifouling agents; antimicrobial properties; artificial membranes; bromides; cationic surfactants; chemical oxygen demand; coatings; emulsions; fouling; industrial wastewater treatment; microbial growth; models; permeability; quaternary ammonium compounds; roughness; ultrafiltration; Show all 17 Subjects
- Abstract:
- ... A novel antifouling coating of ultrafiltration (UF) commercial membranes, based on a polymerisable bicontinuous microemulsion (PBM) technique, was developed and tested for the first time in a membrane bioreactor (MBR) using an artificial model textile dye wastewater and compared with a commercial uncoated UF membrane. The results showed that the commercial MBR module faced severe fouling problems ...
- DOI:
- 10.1016/j.memsci.2016.03.002
-
https://dx.doi.org/10.1016/j.memsci.2016.03.002
- Author:
- Aslam, Muhammad; Yang, Peixian; Lee, Po-Heng; Kim, Jeonghwan
- Source:
- Journal of membrane science 2018 v.553 pp. 200-208
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Geobacter; activated carbon; aluminum; aluminum oxide; anaerobic treatment; artificial membranes; biogas; biosolids; carbon dioxide; ceramics; chemical oxygen demand; cleaning; electric power; energy; fluidized beds; fouling; methane; methanogens; microbial communities; sodium hypochlorite; total suspended solids; wastewater treatment; Show all 23 Subjects
- Abstract:
- ... Aluminum dioxide (Al2O3) flat-tubular ceramic membrane was applied in a novel staged anaerobic fluidized bed ceramic membrane bioreactor (SAF-CMBR) for low-strength wastewater treatment. Granular activated carbon (GAC) particles were fluidized by bulk recirculation through the membrane reactor to control membrane fouling without any biogas sparging. The SAF-CMBR was operated for 350 days at 25 °C ...
- DOI:
- 10.1016/j.memsci.2018.02.038
-
https://dx.doi.org/10.1016/j.memsci.2018.02.038
- Author:
- Bani-Melhem, Khalid; Al-Qodah, Zakaria; Al-Shannag, Mohammad; Qasaimeh, Ahmad; Rasool Qtaishat, Mohammed; Alkasrawi, Malek
- Source:
- Journal of membrane science 2015 v.476 pp. 40-49
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; ammonium nitrogen; artificial membranes; chemical oxygen demand; coliform bacteria; color; fouling; guidelines; membrane permeability; total suspended solids; turbidity; ultrafiltration; wastewater; wastewater treatment; Show all 15 Subjects
- Abstract:
- ... The performance of a submerged membrane bioreactor (SMBR) system for grey water (GW) treatment was evaluated in terms of effluent quality and membrane fouling. The SMBR was operated for 42 days at constant transmembrane pressure (13kPa) in six consecutive stages. A hollow fibre ultrafiltration membrane module (ZW-1) was used to treat real GW with the aim of producing effluent that meets reuse guid ...
- DOI:
- 10.1016/j.memsci.2014.11.010
-
http://dx.doi.org/10.1016/j.memsci.2014.11.010
- Author:
- Jørgensen, Mads Koustrup; Keiding, Kristian; Christensen, Morten Lykkegaard
- Source:
- Journal of membrane science 2014 v.455 pp. 152-161
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; filtration; fouling; models; Show all 5 Subjects
- Abstract:
- ... Fouling in a membrane bioreactor was studied by describing the reversibility of fouling developing during short-term experiments. Data were fitted to a recently proposed model of the buildup and compression of fouling layers. Shear stepping experiments performed to characterize the efficiency of increased shear rates at removing cake layers indicated that cake layer removal follows the same kineti ...
- DOI:
- 10.1016/j.memsci.2013.12.052
-
http://dx.doi.org/10.1016/j.memsci.2013.12.052
- Author:
- Xiaoguang, Chen; Gang, Li; Haibo, Lin; Yuling, Li; Yanxue, Ma; Ruobin, Dai; Jiqiang, Zhang
- Source:
- Journal of membrane science 2017 v.539 pp. 206-212
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aeration; artificial membranes; biogas; chemical oxygen demand; fouling; polysaccharides; streams; total solids; Show all 9 Subjects
- Abstract:
- ... The performances and membrane fouling of the spiral symmetry stream anaerobic membrane bioreactor (SSS-AnMBR) during stable operation period with and without biogas aeration were studied. The organic loading rate (OLR) and chemical oxygen demand (COD) removal rate of the SSS-AnMBR with aeration biogas condition were 2.28 kgCOD/(m³d) and 98.24%, respectively, higher than those without biogas aerati ...
- DOI:
- 10.1016/j.memsci.2017.05.076
-
https://dx.doi.org/10.1016/j.memsci.2017.05.076
- Author:
- Sethunga, G.S.M.D.P.; Rongwong, Wichitpan; Wang, Rong; Bae, Tae-Hyun
- Source:
- Journal of membrane science 2018 v.548 pp. 510-518
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Taguchi method; artificial membranes; biogas; carbon dioxide; fouling; hydrophobicity; liquids; mass transfer; methane; pH; polypropylenes; porous media; sodium hydroxide; tap water; thermoplastics; Show all 16 Subjects
- Abstract:
- ... Tailoring the hydrophobic properties of membranes is an important requirement in gas-liquid membrane contactor processes because the membrane can be wetted by liquid. This paper describes the hydrophobic modification of the chemical surface of a polyvinylidene fluoride hollow-fiber membrane using a commercial perfluoropolyether, Fluorolink S10. The contact angle of the modified membrane was influe ...
- DOI:
- 10.1016/j.memsci.2017.11.059
-
https://dx.doi.org/10.1016/j.memsci.2017.11.059
- Author:
- Liang, Shuai; Qi, Genggeng; Xiao, Kang; Sun, Jianyu; Giannelis, Emmanuel P.; Huang, Xia; Elimelech, Menachem
- Source:
- Journal of membrane science 2014 v.463 pp. 94-101
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; antifouling activities; artificial membranes; bovine serum albumin; durability; fouling; hydrophilicity; models; molecular weight; nanoparticles; organic matter; rivers; silica; sodium alginate; surface tension; thermoplastics; ultrafiltration; wastewater treatment; Show all 18 Subjects
- Abstract:
- ... This study systematically investigates the organic fouling behavior of a superhydrophilic polyvinylidene fluoride (PVDF) ultrafiltration membrane functionalized via post-fabrication tethering of surface-tailored silica nanoparticles to poly(methacrylic acid)-grafted PVDF membrane surface. Sodium alginate (SA), Suwannee River natural organic matter (SRNOM), and bovine serum albumin (BSA) were used ...
- DOI:
- 10.1016/j.memsci.2014.03.037
-
http://dx.doi.org/10.1016/j.memsci.2014.03.037
- Author:
- Wang, Xinhua; Chang, Victor W.C.; Tang, Chuyang Y.
- Source:
- Journal of membrane science 2016 v.504 pp. 113-132
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; fouling; osmosis; wastewater treatment; water quality; Show all 6 Subjects
- Abstract:
- ... Osmotic membrane bioreactor (OMBR) is an emerging technology integrating a forward osmosis (FO) process into a membrane bioreactor (MBR). This technology has been gaining increasing popularity in wastewater treatment and reclamation due to its excellent product water quality, low fouling tendency and high fouling reversibility over conventional MBRs. In the past decade especially the last 3 years, ...
- DOI:
- 10.1016/j.memsci.2016.01.010
-
https://dx.doi.org/10.1016/j.memsci.2016.01.010
- Author:
- Sethunga, G.S.M.D.P.; Karahan, H. Enis; Wang, Rong; Bae, Tae-Hyun
- Source:
- Journal of membrane science 2019 v.584 pp. 333-342
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; asymmetric membranes; biogas; coatings; effluents; fouling; hydrophobicity; mass transfer; methane; permeability; polydimethylsiloxane; porosity; upflow anaerobic sludge blanket reactor; wastewater treatment; Show all 14 Subjects
- Abstract:
- ... This report demonstrates the fabrication of a composite hollow fiber membrane that efficiently recovers dissolved methane (dCH4) from anaerobic wastewater treatment effluents via membrane contactor (MC) process. We first fabricated highly porous hollow fiber membranes (∼85% porosity) using polyvinylidene difluoride (PVDF). Then, we coated the whole structure (bulk), or lumen side of PVDF supports ...
- DOI:
- 10.1016/j.memsci.2019.05.016
-
https://dx.doi.org/10.1016/j.memsci.2019.05.016
- Author:
- Liu, Hang; Gu, Jun; Wang, Siyu; Zhang, Meng; Liu, Yu
- Source:
- Journal of membrane science 2020 v.593
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; biofilm; cost analysis; energy efficiency; fouling; municipal wastewater; organic matter; reverse osmosis; sludge; total suspended solids; wastewater treatment; water reuse; water shortages; Show all 14 Subjects
- Abstract:
- ... To relieve the increasing pressure on water scarcity, reclamation and reuse of municipal wastewater represent a global trend. However, the current process for high-grade reclaimed water production faces increasing pressure because of the intensive energy consumption, excessive sludge generation, highly complicated process configuration and large footprint. To tackle these challenges, an integrated ...
- DOI:
- 10.1016/j.memsci.2019.117442
-
http://dx.doi.org/10.1016/j.memsci.2019.117442
- Author:
- Vera, L.; González, E.; Díaz, O.; Delgado, S.
- Source:
- Journal of membrane science 2014 v.457 pp. 1-8
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aeration; ammonium; artificial membranes; biomass; cleaning; filtration; fouling; fractionation; hydrodynamics; nitrates; sludge; total suspended solids; wastewater treatment; Show all 14 Subjects
- Abstract:
- ... A pilot-scale submerged aerobic membrane bioreactor (MBR) was run for over 3 months to assess the sustainability to operate at supra-critical fluxes. The MBR was applied as advanced treatment of secondary effluent from a conventional wastewater treatment plant. The system was successfully operated without biomass purge at hydraulic retention time (HRT) of 8.8h, resulting in a moderate liquor suspe ...
- DOI:
- 10.1016/j.memsci.2014.01.027
-
http://dx.doi.org/10.1016/j.memsci.2014.01.027
- Author:
- Ruigómez, Ignacio; Vera, Luisa; González, Enrique; Rodríguez-Sevilla, Juan
- Source:
- Journal of membrane science 2016 v.514 pp. 105-113
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; filtration; fouling; specific energy; Show all 5 Subjects
- Abstract:
- ... A new rotating hollow-fibre module has been designed in order to reduce membrane fouling in submerged anaerobic membrane bioreactors. Filtration performance under different permeate flux conditions was evaluated on a short-term pilot-scale basis. Results were compared with those obtained with a conventional gas-sparging module operating at similar specific energy demand. The experimental assessmen ...
- DOI:
- 10.1016/j.memsci.2016.04.061
-
https://dx.doi.org/10.1016/j.memsci.2016.04.061
- Author:
- Kim, Inae; Choi, Dong-Chan; Lee, Jaewoo; Chae, Hee-Ro; Hee Jang, Jun; Lee, Chung-Hak; Park, Pyung-Kyu; Won, Young-June
- Source:
- Journal of membrane science 2015 v.490 pp. 190-196
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; commercialization; fouling; wastewater treatment; Show all 5 Subjects
- Abstract:
- ... Hollow-fiber membranes have been widely used in membrane processes for water and wastewater treatments, but membrane fouling in commercialized hollow-fiber membranes still remains a challengeable task to be solved. In this study, we introduced patterned morphology to the membrane surface of a polyvinylidene fluoride (PVDF) hollow-fiber module using a lithographic method. Two types of patterned hol ...
- DOI:
- 10.1016/j.memsci.2015.04.026
-
http://dx.doi.org/10.1016/j.memsci.2015.04.026
- Author:
- Jeong, Yeongmi; Lee, Sanghyup; Hong, Seungkwan; Park, Chanhyuk
- Source:
- Journal of membrane science 2017 v.536 pp. 108-115
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; aluminum oxide; artificial membranes; ceramics; chemical oxygen demand; cost effectiveness; fouling; microfiltration; municipal wastewater; nitrogen; porosity; sludge; Show all 12 Subjects
- Abstract:
- ... To advance cost-effective strategies for developing flat-sheet ceramic microfiltration membranes, the feasibility of using waste mineral-based materials as a ceramic membrane in engineered membrane bioreactor systems (MBRs) for treating low-strength domestic wastewater was evaluated. The ceramic membrane support layers that had effectively been fabricated with pyrophyllite and alumina were sintere ...
- DOI:
- 10.1016/j.memsci.2017.04.068
-
https://dx.doi.org/10.1016/j.memsci.2017.04.068
- Author:
- Minehara, Hiroki; Dan, Kouichi; Ito, Yohito; Takabatake, Hiroo; Henmi, Masahiro
- Source:
- Journal of membrane science 2014 v.466 pp. 211-219
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; X-radiation; X-ray photoelectron spectroscopy; activated sludge; adsorption; artificial membranes; composite polymers; filtration; fouling; hydrophilicity; models; polyethylene glycol; quantitative analysis; scanning electron microscopy; separation; surface plasmon resonance; Show all 16 Subjects
- Abstract:
- ... Fouling resistance of various kinds of membrane materials including blends of poly(vinylidene difluoride) (PVDF) and copolymer of methyl methacrylate (MMA) and poly(ethylene glycol) methyl ether methacrylate (PVDF/PMMA-g-PEO) was quantitatively evaluated by measuring the amount of model fouling compounds adsorbed on the surface of membrane materials using a surface plasmon resonance (SPR) sensor. ...
- DOI:
- 10.1016/j.memsci.2014.04.039
-
http://dx.doi.org/10.1016/j.memsci.2014.04.039
- Author:
- Shen, Luwei; Yao, Yuan; Meng, Fangang
- Source:
- Journal of membrane science 2014 v.462 pp. 139-146
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Nitrosomonas; ammonium; anaerobic ammonium oxidation; artificial membranes; bacterial communities; fouling; heterotrophs; high-throughput nucleotide sequencing; nitrifying bacteria; nitrogen-fixing bacteria; oxidation; pollution load; polysaccharides; ribosomal RNA; sludge; Show all 16 Subjects
- Abstract:
- ... Partial nitritation is an indispensable pretreatment for anaerobic ammonium oxidation process. However, the nitritation is limited by the low growth rates of ammonia-oxidizing bacteria (AOB). In this study, a membrane bioreactor (MBR) was operated for 300 days to assess its nitritation performance and the shift of microbial community. Results showed that the reactor obtained satisfying nitritation ...
- DOI:
- 10.1016/j.memsci.2014.03.034
-
http://dx.doi.org/10.1016/j.memsci.2014.03.034
- Author:
- Akther, Nawshad; Phuntsho, Sherub; Chen, Yuan; Ghaffour, Noreddine; Shon, Ho Kyong
- Source:
- Journal of membrane science 2019 v.584 pp. 20-45
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; additives; antifouling activities; fouling; heavy metals; hydrophilicity; nanocomposites; nanomaterials; osmosis; permeability; polyamides; porosity; strength (mechanics); thin film composite membranes; wastewater treatment; Show all 15 Subjects
- Abstract:
- ... Polyamide thin-film composite (PA TFC) membranes have attained much attention for forward osmosis (FO) applications in separation processes, water and wastewater treatment due to their superior intrinsic properties, such as high salt rejection and water permeability compared to the first-generation cellulose-based FO membranes. Nonetheless, several problems like fouling and trade-off between membr ...
- DOI:
- 10.1016/j.memsci.2019.04.064
-
https://dx.doi.org/10.1016/j.memsci.2019.04.064
- Author:
- Marbelia, Lisendra; Bilad, Muhammad Roil; Bertels, Nils; Laine, Carole; Vankelecom, Ivo F.J.
- Source:
- Journal of membrane science 2016 v.498 pp. 315-323
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; aeration; artificial membranes; cleaning; filtration; fouling; permeability; surface area; turbulent flow; vibration; Show all 11 Subjects
- Abstract:
- ... The feasibility of ribbed-PVC–silica mixed matrix membranes (MMM) in a membrane bioreactor (MBR) application was investigated. Three operational aspects were evaluated: inclusion of vibration, use of relaxation (cycle time), and optimization of the cleaning procedure. Results show that the specific ribs on the membranes give a 52% higher surface area compared to the corresponding flat membranes, o ...
- DOI:
- 10.1016/j.memsci.2015.10.017
-
https://dx.doi.org/10.1016/j.memsci.2015.10.017
- Author:
- Sun, Jianyu; Xiao, Kang; Mo, Yinghui; Liang, Peng; Shen, Yuexiao; Zhu, Ningwei; Huang, Xia
- Source:
- Journal of membrane science 2014 v.453 pp. 168-174
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; filtration; fouling; humic substances; hydrophilicity; hydrophobicity; molecular weight; polysaccharides; proteins; seasonal variation; temperature; China; Show all 13 Subjects
- Abstract:
- ... Despite the potentially important effect of temperature on membrane fouling, very few investigations have been conducted on full-scale membrane bioreactors (MBRs) regarding seasonal variation of fouling. In this study, fouling behavior in a full-scale MBR (capacity 60,000m³/d) in northern China was monitored for a whole year. As the mixed liquor temperature dropped from 27 to 13°C, the filtration ...
- DOI:
- 10.1016/j.memsci.2013.11.003
-
http://dx.doi.org/10.1016/j.memsci.2013.11.003
- Author:
- Zhou, Zhongbo; Meng, Fangang; Lu, Hui; Li, Yue; Jia, Xiaoshan; He, Xiang
- Source:
- Journal of membrane science 2014 v.457 pp. 120-127
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Fourier transform infrared spectroscopy; adverse effects; artificial membranes; biopolymers; chemical structure; chronic exposure; cleaning; fouling; membrane permeability; nitrification; pH; scanning electron microscopy; sodium hydroxide; Show all 14 Subjects
- Abstract:
- ... In this study, we took advantage of the conventionally used physical backwashing and chemical cleaning methods to develop an on-line maintenance cleaning method using the NaOH solution (0.01mol/L, pH around 12) as the backwashing agent in a membrane bioreactor (MBR) operated at two imposed fluxes (6.5 and 13L/(m²·h) (LMH)). The results indicate that NaOH backwashing had little adverse effect on bi ...
- DOI:
- 10.1016/j.memsci.2014.01.008
-
http://dx.doi.org/10.1016/j.memsci.2014.01.008
- Author:
- Mei, Xiaojie; Wang, Zhiwei; Zheng, Xiang; Huang, Fei; Ma, Jinxing; Tang, Jixu; Wu, Zhichao
- Source:
- Journal of membrane science 2014 v.451 pp. 169-176
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; Fourier transform infrared spectroscopy; X-radiation; adsorption; artificial membranes; chemical analysis; energy-dispersive X-ray analysis; exposure duration; filtration; fouling; gels; nanoparticles; pollutants; polysaccharides; proteins; quartz crystal microbalance; scanning electron microscopy; zinc oxide; Show all 18 Subjects
- Abstract:
- ... In membrane bioreactors (MBRs), soluble microbial products (SMPs) are a key factor in membrane fouling. In this study, the production, characteristics, and fouling potential of SMPs in the presence of zinc oxide (ZnO) nanoparticles (NPs) were investigated in order to clarify the impact of environmental nanoparticle pollutants (ENPs) on SMP behavior in MBRs. Batch tests showed that the SMP producti ...
- DOI:
- 10.1016/j.memsci.2013.10.008
-
http://dx.doi.org/10.1016/j.memsci.2013.10.008
- Author:
- Morrow, Christopher P.; McGaughey, Allyson L.; Hiibel, Sage R.; Childress, Amy E.
- Source:
- Journal of membrane science 2018 v.548 pp. 583-592
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; fouling; hydrodynamics; models; osmosis; salinity; sodium chloride; solutes; Show all 9 Subjects
- Abstract:
- ... The role of submerged and sidestream forward osmosis (FO) membrane module configuration in osmotic membrane bioreactors (OMBRs) was investigated. Experiments were performed under identical conditions (solids retention time, bioreactor volume, feed solution, draw solute, and draw solution concentration) to isolate the effect of FO module configuration and associated hydrodynamics on water flux, rev ...
- DOI:
- 10.1016/j.memsci.2017.11.030
-
https://dx.doi.org/10.1016/j.memsci.2017.11.030
- Author:
- Wang, K.M.; Jefferson, B.; Soares, A.; McAdam, E.J.
- Source:
- Journal of membrane science 2018 v.564 pp. 289-297
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; capital; energy; filtration; fouling; membrane permeability; municipal wastewater; stormwater; wastewater treatment; Show all 10 Subjects
- Abstract:
- ... In this study, the impact of peak flow on anaerobic membrane bioreactor operation is investigated to establish how system perturbation induced by diurnal peaks and storm water flows will influence membrane permeability. Good permeability recovery was attained through increasing gas sparging during peak flow, which was explained by the transition in critical flux of the suspension at higher shear r ...
- DOI:
- 10.1016/j.memsci.2018.07.032
-
https://dx.doi.org/10.1016/j.memsci.2018.07.032
- Author:
- Hu, Yisong; Wang, Xiaochang C.; Tian, Wenrui; Ngo, Huu Hao; Chen, Rong
- Source:
- Journal of membrane science 2016 v.498 pp. 20-29
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; activated sludge; aeration; air; ammonia; artificial membranes; chemical oxygen demand; cleaning; filtration; fouling; nylon; phosphorus; polysaccharides; porosity; turbidity; Show all 15 Subjects
- Abstract:
- ... An experimental study was conducted for characterizing the whole operational cycle of a dynamic membrane bioreactor (DMBR). With a nylon mesh of 25μm pore size as support material, the filtration flux was suddenly halved within 5min, indicating a rapid cake layer formation. Then the flux declined gradually and became stable at t=4h, indicating the maturation of the dynamic membrane (DM) for stable ...
- DOI:
- 10.1016/j.memsci.2015.10.009
-
https://dx.doi.org/10.1016/j.memsci.2015.10.009
- Author:
- Kola, Anusha; Ye, Yun; Le-Clech, Pierre; Chen, Vicki
- Source:
- Journal of membrane science 2014 v.455 pp. 320-329
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; artificial membranes; effluents; filtration; fouling; fractionation; liquids; mass transfer; vibration; Show all 9 Subjects
- Abstract:
- ... While vibratory shear is effective for increasing the shear near the membrane surface, transverse hollow fiber membrane vibration offers additional mass transfer enhancement in terms of generating vortices in the wake of the vibrating surface. In this work, transverse vibration of submerged hollow fibers is explored for enhancing the filtration of anaerobic bioreactor effluents where gas sparging ...
- DOI:
- 10.1016/j.memsci.2013.12.078
-
http://dx.doi.org/10.1016/j.memsci.2013.12.078
- Author:
- Yu, Zhiyong; Song, Zhehua; Wen, Xianghua; Huang, Xia
- Source:
- Journal of membrane science 2015 v.479 pp. 20-27
- ISSN:
- 0376-7388
- Subject:
- membrane bioreactors, etc ; anaerobic digestion; artificial membranes; chlorides; filterability; flocculants; fouling; polyacrylamide; sludge; zeta potential; Show all 10 Subjects
- Abstract:
- ... The objective of this study is to determine the feasibility of using flocculants to control membrane fouling in anaerobic membrane bioreactors (AnMBRs), which has not been previously reported. The effects of two typical polymeric flocculants, polyaluminum chloride (PAC) and polyacrylamide (PAM), on the properties (filterability, soluble microbial products (SMP), zeta potential and floc size) of an ...
- DOI:
- 10.1016/j.memsci.2015.01.016
-
http://dx.doi.org/10.1016/j.memsci.2015.01.016