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1. Non-uniform filtration velocity of process gas passing through a long bag filter

Author:
Park, Sangcheol; Joe, Yun Haeng; Shim, Joonmok; Park, Hyunseol; Shin, Weon Gyu
Source:
Journal of hazardous materials 2019 v.365 pp. 440-447
ISSN:
0304-3894
Subject:
filtration,   etc   ; air flow; equations; filters;     Show all 4 Subjects
Abstract:
... Filtration velocity is one of the dominant parameters that determine the pressure drop through a bag filter. Experimental investigation of the air flow pattern around a bag filter inside a bag house is very difficult because of the complexity of the 3-D air flow. For this reason, we numerically investigated flow characteristics along a bag filter in detail. We newly found that the filtration veloc ...
DOI:
10.1016/j.jhazmat.2018.10.098

2. Multi-staged granular beds applied to the filtration of ultrafine particles: An optimization of collector diameters

Author:
Charvet, Augustin; Wingert, Loïc; Bardin-Monnier, Nathalie; Pacault, Stéphanie; Fournier, Frantz; Bemer, Denis; Thomas, Dominique
Source:
Powder technology 2019 v.342 pp. 341-347
ISSN:
0032-5910
Subject:
filtration,   etc   ; cleaning; models; powders; spraying;     Show all 5 Subjects
Abstract:
... Granular beds exhibit interesting performances, in terms of ultrafine particle collection efficiency, hot gas cleaning, low cost and robustness. Nevertheless, some authors highlighted that ultrafine particle deposit is essentially located in the first layers of the granular bed. Thus, only a small depth is useful thereby reducing both the operation time between two uncloggings and the process yiel ...
DOI:
10.1016/j.powtec.2018.10.004

3. Discussion: Automated filtration or really just solid phase extraction

Author:
Falenas, Freyjadour
Source:
Journal of chromatography 2019
ISSN:
0021-9673
Subject:
filtration,   etc   ; automation; chromatography; solid phase extraction;     Show all 4 Subjects
Abstract:
... In this article, we discuss a recent publication by Casati et al. (2018) focusing on the sample preparation that is described for the analysis of phosphatidylethanols and whether or not their proposed method of ‘automated filtration’ and the advantages it brings is really just a standard solid phase extraction protocol. ...
DOI:
10.1016/j.chroma.2019.03.052

4. Measurement of effective filtration area of pleated bag filter for pulse-jet cleaning

Author:
Kim, Jin Sik; Lee, Myong-Hwa
Source:
Powder technology 2019 v.343 pp. 662-670
ISSN:
0032-5910
Subject:
filtration,   etc   ; bags; cleaning; dust; filters; powders;     Show all 6 Subjects
Abstract:
... A pleated filter cartridge is a potential component to reduce the installation space required for a bag house dust collection system. However, the optimal pleating method has not been suggested yet, and it has been dependent upon the manufacturer's know-how and experience. In this study, dimensionless parameter, α, which is the ratio of pleat height to pleat width, was introduced to determine the ...
DOI:
10.1016/j.powtec.2018.11.080

5. Removal of ultrafine particles by porous nanomaterials with varied morphologies

Author:
Yin, Likun; Yang, Xiong; Xing, Yi; Lu, Pei; Tsai, Chuen-Jinn; Attoui, Michel; Cui, Yongkang; Liu, Yingshu; Li, Ziyi
Source:
Powder technology 2019 v.342 pp. 380-387
ISSN:
0032-5910
Subject:
filtration,   etc   ; models; nanoparticles; porosity; powders; roughness;     Show all 6 Subjects
Abstract:
... The removal characteristics of sub-25 nm ultrafine particles (UFPs) by different porous nanomaterials with different morphologies were studied based on efficiency curves obtained with specially designed filtration system. The material morphological effects on UFPs collection were investigated. The results demonstrate a complex and synergic mechanism of material structural framework, pore size dist ...
DOI:
10.1016/j.powtec.2018.09.071

6. Aligned-graphene composites: a review

Author:
Wang, Fei; Wang, Haoyu; Mao, Jian
Source:
Journal of materials science 2019 v.54 no.1 pp. 36-61
ISSN:
0022-2461
Subject:
filtration,   etc   ; graphene; liquid crystals; mechanical properties;     Show all 4 Subjects
Abstract:
... Graphene and its derivatives (G) are promising nanofillers with the ability to boost versatile properties of composites despite the low addition due to their combined excellent performances. Moreover, aligning G into various matrices can achieve stronger improvement in properties compared to composites with randomly distributed G. Aligning G is an effective strategy to take full advantage of its p ...
DOI:
10.1007/s10853-018-2849-4

7. A comparative study on filtration performance of mono-, bi-, and multi-constituent nonwoven air filter media

Author:
Pradhan, Arun Kumar; Das, Dipayan
Source:
The journal of the Textile Institute 2018 v.109 no.11 pp. 1521-1527
ISSN:
1754-2340
Subject:
filtration,   etc   ; air filters; fabrics;     Show all 3 Subjects
Abstract:
... In this work, a series of multi-constituent nonwoven filter media possessing multi-modal fiber diameter distribution was prepared and evaluated for pressure drop and filtration efficiency. The same approach was extended to bi-constituent nonwoven filter media exhibiting bi-modal fiber diameter distribution and mono-constituent nonwoven filter media showing mono-modal fiber diameter distribution. W ...
DOI:
10.1080/00405000.2018.1423885

8. Simple estimate of filtration rates on a sandy beach

Author:
Hamada, Atsunobu; Nakamura, Keigo; Sasaki, Katsunori
Source:
Limnology 2018 v.19 no.1 pp. 69-80
ISSN:
1439-8621
Subject:
filtration,   etc   ; beaches; cylinders; shorelines;     Show all 4 Subjects
Abstract:
... A new, simple and inexpensive method is proposed to determine the rate of water filtration in the swash zone of lakeshore beaches. Rates of water filtration on a sandy beach were determined by measuring the residue of a tracer injected into several cylinders buried vertically in the sandy layer at various locations from the shoreline to the tip of the swash zone. This methodology enabled the separ ...
DOI:
10.1007/s10201-017-0519-x

9. Correction to: Urogenital schistosomiasis elimination in Zanzibar: accuracy of urine filtration and haematuria reagent strips for diagnosing light intensity Schistosoma haematobium infections

Author:
Knopp, Stefanie; Ame, Shaali M.; Hattendorf, Jan; Ali, Said M.; Khamis, Iddi S.; Bakar, Faki; Khamis, Mwanaidi A.; Person, Bobbie; Kabole, Fatma; Rollinson, David
Source:
Parasites & vectors 2019 v.12 no.1 pp. 149
ISSN:
1756-3305
Subject:
filtration,   etc   ; Schistosoma haematobium; hematuria; light intensity; schistosomiasis haematobia; urine; Zanzibar;     Show all 7 Subjects
Abstract:
... Following publication of the original article [1], the authors flagged that unfortunately an error had been introduced to the Conclusions section of the article’s Abstract, during production of the article. ...
DOI:
10.1186/s13071-019-3397-8

10. Performance study about a new kind wood fiber filter element utilized in capturing diesel particulate material

Author:
Du, Danfeng; Guo, Xiurong; Xu, Yuefeng; Yang, Xiao
Source:
Journal of wood science 2019 v.65 no.1 pp. 12
ISSN:
1435-0211
Subject:
filtration,   etc   ; filters; fuels; mathematical models; scanning electron microscopy; wood fibers;     Show all 6 Subjects
Abstract:
... A new kind diesel particulate filter (DPF) with gear-shaped wood fiber filter element is researched and it has very low cost and less requirement for fuel quality. In this paper, the mathematical models of the filtration resistance and the structural parameters of the wood fiber filter element were established first. Then by SEM, the advantages of this material can be proved. Finally, to verify re ...
DOI:
10.1186/s10086-019-1792-6

11. Development and evaluation of a novel personal sampler for PM1 using rotating porous media

Author:
Lai, Chane-Yu; Chao, How-Ran; Tsai, Ying I.; Huang, Xiang-Yu; Lin, Tzu-Hsien
Source:
The Science of the total environment 2019 v.682 pp. 709-718
ISSN:
0048-9697
Subject:
filtration,   etc   ; aerodynamics; aerosols; corn oil; foams; nickel; particulates; porous media;     Show all 8 Subjects
Abstract:
... A rotating filtration device (RFD) that is filled with porous media is developed for sampling particulate matter with a diameter of 1 μm or less (PM1). An experiment is conducted on a test system using corn oil as a test aerosol. The RFD was evaluated using an aerodynamic particle sizer. The results yielded cutoff sizes of 1.68 μm and 1.04 μm at rotational speeds of 0 rpm and 9000 rpm, respectivel ...
DOI:
10.1016/j.scitotenv.2019.05.086

12. Multi-cycle operation of semi-batch reverse osmosis (SBRO) desalination

Author:
Lee, Tae; Rahardianto, Anditya; Cohen, Yoram
Source:
Journal of membrane science 2019
ISSN:
0376-7388
Subject:
filtration,   etc   ; artificial membranes; desalination; models; reverse osmosis; salinity;     Show all 6 Subjects
Abstract:
... Semi-batch reverse osmosis (SBRO) desalination was investigated via process modeling and a small-scale spiral-wound SBRO pilot. The salinity increase during SBRO filtration necessitates periodic flushing of the excess salinity buildup in the system. Accordingly, concentrate flushing efficacy and its impact on SBRO performance was investigated for multi-cycles of filtration and concentrate flushing ...
DOI:
10.1016/j.memsci.2019.05.015

13. Pre-enrichment of radioactive cesium in muddy water separated into suspended and dissolved substances for trace analysis

Author:
Minami, Kimitaka; Funabashi, Takayuki; Honda, Kazuyuki; Takahashi, Akira; Sakurai, Koji; Kanai, Ramon; Uemura, Kazuto; Kamimura, Ryuichi; Kawamoto, Tohru
Source:
Water research 2019 v.154 pp. 28-33
ISSN:
0043-1354
Subject:
filtration,   etc   ; adsorbents; cesium; nanoparticles; ponds; rivers; sediments; slurries;     Show all 8 Subjects
Abstract:
... A new in-situ pre-enrichment system was developed for trace analysis of radioactive Cs in environmental water such as rivers, ponds, and seas, where the radioactive Cs is separated into suspended substances (SS) and dissolved substances (DS). The SS component was collected as the enrichment slurry by cross-flow filtration, thereby compact systems were realized. The DS component was collected in a ...
DOI:
10.1016/j.watres.2019.01.031

14. Dewatering characteristics of sludge conditioned by surfactant with bioleaching pretreatment

Author:
Liu, Changgeng; Zhang, Xuefeng; Wu, Bin; Chen, Xiao’e; Xie, Sicai
Source:
Water and environment journal 2019 v.33 no.2 pp. 223-229
ISSN:
1747-6585
Subject:
filtration,   etc   ; bioleaching; dewatering; neutralization; pH; polymers; sludge; surfactants; water content;     Show all 9 Subjects
Abstract:
... In view of the merits of bioleaching and surfactant for sludge treatment, the possibility of surfactant with bioleaching pretreatment applied to improve sludge dewaterability was investigated in this work. The results showed that cetyl trimethyl ammonium chloride (CTAC) with bioleaching pretreatment was highly efficient in dewatering sludge. The optimal CTAC dosage and bioleaching pH for this comb ...
DOI:
10.1111/wej.12393

15. Electrochemical performance of Sb2S3/CNT free-standing flexible anode for Li-ion batteries

Author:
Elizabeth, Indu; Singh, Bhanu Pratap; Gopukumar, Sukumaran
Source:
Journal of materials science 2019 v.54 no.9 pp. 7110-7118
ISSN:
0022-2461
Subject:
filtration,   etc   ; anodes; buffers; electrochemistry; ethylene; graphene; lithium batteries; surface area;     Show all 8 Subjects
Abstract:
... Sb₂S₃/CNT composite has been synthesized through ethylene glycol-mediated solvothermal process, and binderless, free-standing, flexible anode is prepared from the composite through vacuum filtration technique. The 1-D rod-like structure of Sb₂S₃ prevents self-agglomeration and exhibits well-guided charge–discharge kinetics and high surface area enhancing their electrochemical performance in Li-ion ...
DOI:
10.1007/s10853-018-03275-w

16. Simultaneous clarification and dehydration of crude palm oil using superhydrophobic polypropylene membrane

Author:
Wenten, I. Gede; Victoria, Agnes Veronica; Tanukusuma, Grace; Khoiruddin, K.; Zunita, Megawati
Source:
Journal of food engineering 2019 v.248 pp. 23-27
ISSN:
0260-8774
Subject:
filtration,   etc   ; air; fouling; hydrophobicity; palm oils; polypropylenes; temperature; water content;     Show all 8 Subjects
Abstract:
... Clarification and dehydration processes are generally employed to produce high-quality crude palm oil (CPO). In this work, superhydrophobic hollow fiber polypropylene (PP) membrane is used to perform a simultaneous clarification and dehydration. The effect of transmembrane pressure (TMP), temperature, and water content on the membrane performance are investigated. Results indicate that the permeat ...
DOI:
10.1016/j.jfoodeng.2018.12.010

17. Ultrasonic characterisation of particle retention by a double porosity medium

Author:
Bai, Ruonan; Alem, Abdellah; Franklin, Hervé; Tinel, Alain; Wang, Huaqing; Kachkouch, Fatima; Taibi, Said; Bizet, Laurent
Source:
Environmental technology 2019 v.40 no.9 pp. 1166-1177
ISSN:
1479-487X
Subject:
filtration,   etc   ; particle size distribution; porosity; porous media; tracer techniques; ultrasonics;     Show all 6 Subjects
Abstract:
... A study was undertaken to characterise the evolution of the clogging of various porous media during filtration experiments. Long-term tracer tests were carried out at various flow velocities. To highlight the effects of intraporosity on transport and retention mechanisms, both single porosity and double porosity media (DPM) were used. The presence of matrix porosity in the two investigated DPM pro ...
DOI:
10.1080/09593330.2017.1417494

18. Deposited Nanoparticles Can Promote Air Clogging of Piezoelectric Inkjet Printhead Nozzles

Author:
Li, Yuanhua; Dahhan, Omar; Filipe, Carlos D. M.; Brennan, John D.; Pelton, Robert H.
Source:
Langmuir 2019 v.35 no.16 pp. 5517-5524
ISSN:
1520-5827
Subject:
filtration,   etc   ; adhesion; air; cleaning; dispersions; hydrophobicity; nanoparticles; nozzles; polystyrenes;     Show all 9 Subjects
Abstract:
... Piezoelectric inkjet printing is susceptible to printhead clogging when printing with inks that contain dispersed particles. This paper investigates the mechanisms by which 28–530 nm nanoparticle dispersions induce printhead clogging without forming large aggregates or thick deposited layers on printhead surfaces. Printing experiments were combined with nanoparticle deposition studies and with exp ...
DOI:
10.1021/acs.langmuir.8b04335

19. Interactions between nanoparticles and fractal surfaces

Author:
Wang, Hong; Zhang, Wei; Zeng, Saiqi; Shen, Chongyang; Jin, Chao; Huang, Yuanfang
Source:
Water research 2019 v.151 pp. 296-309
ISSN:
0043-1354
Subject:
filtration,   etc   ; energy; fractal dimensions; ionic strength; nanoparticles; risk; roughness;     Show all 7 Subjects
Abstract:
... This study evaluated attachment of a 30-nm nanoparticle to and detachment from fractal surfaces by calculating Derjaguin-Landau-Verwey-Overbeek (DLVO) interaction energies in three-dimensional space using the surface element integration technique. The fractal surfaces were generated using the Weierstass-Mandelbrot function with varying values of fractal dimension D (2.3 ≤ D ≤ 2.7) and fractal roug ...
DOI:
10.1016/j.watres.2018.12.029

20. Highly Sensitive, Ultrastretchable Strain Sensors Prepared by Pumping Hybrid Fillers of Carbon Nanotubes/Cellulose Nanocrystal into Electrospun Polyurethane Membranes

Author:
Zhu, Li; Zhou, Xin; Liu, Yuhang; Fu, Qiang
Source:
ACS applied materials & interfaces 2019 v.11 no.13 pp. 12968-12977
ISSN:
1944-8252
Subject:
filtration,   etc   ; carbon nanotubes; cellulose; droplets; electronics; nanocrystals; polyurethanes; thermoplastics;     Show all 8 Subjects
Abstract:
... Advanced flexible strain sensors for human motion detection and other potential use have attracted great attention in recent years. However, the preparation of strain sensor with both high sensitivity and large workable strain range remains a challenge. In this work, the carbon nanotube (CNT) suspensions with the assistance of cellulose nanocrystals (CNC) were directly pumped into the porous elect ...
DOI:
10.1021/acsami.9b00136