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1. Impact of roxithromycin on waste activated sludge anaerobic digestion: Methane production, carbon transformation and antibiotic resistance genes

Author:
Ni, Bing-Jie; Zeng, Shuting; Wei, Wei; Dai, Xiaohu; Sun, Jing
Source:
The Science of the total environment 2020 v.703 pp. 134899
ISSN:
0048-9697
Subject:
Archaea; activated sludge; anaerobic digestion; antibiotic resistance; antibiotic resistance genes; aquatic environment; carbon; esterases; methane; methane production; methanogens; phosphorylase; roxithromycin; wastewater
Abstract:
... The macrolide antibiotic roxithromycin is widely detected in varying aquatic environments, especially in the wastewater systems, as an emerging contaminant and leads to significant impacts on the microorganisms involved. In this study, the impact of a shock load of roxithromycin on waste activated sludge (WAS) anaerobic digestion was comprehensively investigated. The biochemical methane potential ...
DOI:
10.1016/j.scitotenv.2019.134899

2. Identification of Novel Butyrate- and Acetate-Oxidizing Bacteria in Butyrate-Fed Mesophilic Anaerobic Chemostats by DNA-Based Stable Isotope Probing

Author:
Yi, Yue; Wang, HuiZhong; Chen, YaTing; Gou, Min; Xia, ZiYuan; Hu, Bin; Nie, Yong; Tang, YueQin
Source:
Microbial ecology 2020 v.79 no.2 pp. 285-298
ISSN:
0095-3628
Subject:
Acetivibrio; Desulfovibrio; Spirochaetaceae; Synergistaceae; Syntrophomonas; acetates; anaerobic digestion; bacteria; butyrates; carbon; genes; high-throughput nucleotide sequencing; isotope labeling; metabolism; methane production; oxidation; ribosomal RNA; stable isotopes; wastewater
Abstract:
... Butyrate is one of the most important intermediates during anaerobic digestion of protein wastewater, and its oxidization is considered as a rate-limiting step during methane production. However, information on syntrophic butyrate-oxidizing bacteria (SBOB) is limited due to the difficulty in isolation of pure cultures. In this study, two anaerobic chemostats fed with butyrate as the sole carbon so ...
DOI:
10.1007/s00248-019-01400-z

3. Changes in the microbial community during the acclimation process of anaerobic digestion for treatment of synthetic lipid-rich wastewater

Author:
Nakasaki, Kiyohiko; Koyama, Mitsuhiko; Maekawa, Takuya; Fujita, Jo
Source:
Journal of biotechnology 2019 v.306 pp. 32-37
ISSN:
0168-1656
Subject:
Actinomycetales; Methanobacteriales; Methanosarcinales; Nitrospirales; Synergistales; acclimation; acetic acid; anaerobic digestion; bacteria; carbon; glucose; lactic acid; lipid content; lipids; methane production; microbial communities; ribosomal RNA; sequence analysis; soybean oil; wastewater
Abstract:
... Changes in the microbial community were investigated during the acclimation process of anaerobic digestion while treating synthetic lipid-rich wastewater, which comprised of glucose, acetic acid, lactic acid, and soybean oil. The oil content in the synthetic wastewater was increased successively from 0% to 25% and finally to 50% of the total carbon content, to clarify the effect of substrate type ...
DOI:
10.1016/j.jbiotec.2019.09.003

4. Biogas Plasticization Coupled Anaerobic Digestion: Anaerobic Pump Calorimetry

Author:
Schimel, Keith A.
Source:
Applied biochemistry and biotechnology 2019 v.189 no.2 pp. 511-540
ISSN:
0273-2289
Subject:
anaerobic digestion; biogas; biomass; calorimetry; carbon; empirical research; entropy; fermentation; heat; hydrogen; methane; mineralization; oxygen; peat; sludge; stoichiometry; wastewater; water content
Abstract:
... This paper presents the quantitative bomb calorimetric high heat values (HHV) for residue samples collected from the Anaerobic Pump (®TAP) and a continuous flow stirred tank reactor (CFSTR) anaerobically digesting a 50:50 wastewater sludge substrate. TAP, an advanced anaerobic digestion (AD) process, features biogas plasticization that greatly increases gas production and leaves a mineralized resi ...
DOI:
10.1007/s12010-019-03007-z

5. Non-aerated single-stage nitrogen removal using a down-flow hanging sponge reactor as post-treatment for nitrogen-rich wastewater treatment

Author:
Tanikawa, Daisuke; Yamashita, Sumire; Kataoka, Taiki; Sonaka, Hideaki; Hirakata, Yuga; Hatamoto, Masashi; Yamaguchi, Takashi
Source:
Chemosphere 2019 v.233 pp. 645-651
ISSN:
0045-6535
Subject:
Amaricoccus; Nitrosovibrio; Pseudoxanthomonas; Xanthobacter; aerobic digestion; ammonia; anaerobic digestion; carbon; chemical oxygen demand; denitrification; denitrifying bacteria; laboratory experimentation; nitrification; nitrifying bacteria; nitrogen; nitrogen content; nitrogen-fixing bacteria; rubber; rubber industry; sludge; sodium acetate; wastewater; wastewater treatment; South East Asia
Abstract:
... A laboratory-scale experiment is conducted to remove nitrogen from nitrogen-rich wastewater using a down-flow hanging sponge (DHS) reactor. Effluent from an anaerobic–aerobic system for treating synthetic natural rubber wastewater, which still contains high levels of ammonia, was used as nitrogen-rich wastewater. Experimental period was divided into four phases based whether a carbon source was fe ...
DOI:
10.1016/j.chemosphere.2019.06.012

6. Impact of total carbon/sulfate on methane production and sulfate removal from co-digestion of sulfate-containing wastewater and corn stalk

Author:
Yang, Fuli; Li, Wenzhe; Liu, Changyu; Wang, Mengyi; Li, Qiang; Sun, Yong
Source:
Journal of environmental management 2019 v.243 pp. 411-418
ISSN:
0301-4797
Subject:
Desulfotomaculum; Methanoculleus; Methanosarcina; anaerobic digestion; biogas; carbon; corn stover; depolymerization; furfural; methane; methane production; methanogens; microbial communities; ribosomal DNA; sequence analysis; slurries; straw; sulfate-reducing bacteria; sulfates; sulfuric acid; temperature; wastewater
Abstract:
... During the process of preparing furfural by straw depolymerization with dilute sulfuric acid, large amounts of high temperature sulfate-rich organic wastewater were produced. It cannot be treated directly by anaerobic digestion and converted to bioenergy due to high concentrations of sulfate. In this study, anaerobic co-digestion of sulfate containing wastewater and corn stalk was performed at the ...
DOI:
10.1016/j.jenvman.2019.04.129

7. Effect of hydrothermal carbonization as pretreatment on energy recovery from food and paper wastes

Author:
Gupta, Divya; Mahajani, S.M.; Garg, Anurag
Source:
Bioresource technology 2019 v.285 pp. 121329
ISSN:
0960-8524
Subject:
anaerobic digestion; biogas; carbohydrates; carbon; chemical oxygen demand; composting; energy balance; energy recovery; food waste; hydrochars; hydrothermal carbonization; liquids; wastewater
Abstract:
... In this study, food waste (FW) and paper wastes were subjected to hydrothermal carbonization (HTC) with a purpose to improve energy recovery potential. FW is suggested as the suitable feedstock for production of hydrochar (HC) having highest calorific value (29.6 MJ/kg). Carbon content in FW derived HC was increased from 50% to ∼72% whereas energy retention efficiency was found to be 5.74 times of ...
DOI:
10.1016/j.biortech.2019.121329

8. Benefits and drawbacks of food and dairy waste co-digestion at a high organic loading rate: A Moosburg WWTP case study

Author:
Sembera, Claire; Macintosh, Catherine; Astals, Sergi; Koch, Konrad
Source:
Waste management 2019 v.95 pp. 217-226
ISSN:
0956-053X
Subject:
anaerobic digestion; carbon; case studies; dairies; denitrification; electricity generation; food waste; industrial effluents; lactose; methane; methane production; milk; nitrogen; nitrogen content; sewage sludge; wastewater; wastewater treatment; Germany
Abstract:
... Anaerobic co-digestion (AcoD) is a key technology in reframing organic waste as a viable energy source. A lack of documented experience on full-scale AcoD at wastewater treatment plants (WWTPs) has created a bottleneck in AcoD implementation, which is further tightened by the focus of existing AcoD studies being on low co-substrate loading (<50%) and the obtainable benefits. This study aims to fil ...
DOI:
10.1016/j.wasman.2019.06.008

9. COD/sulfate ratio does not affect the methane yield and microbial diversity in anaerobic digesters

Author:
Cetecioglu, Zeynep; Dolfing, Jan; Taylor, Jessica; Purdy, Kevin J.; Eyice, Özge
Source:
Water research 2019 v.155 pp. 444-454
ISSN:
0043-1354
Subject:
anaerobic digesters; anaerobic digestion; biogas; carbon; chemical oxygen demand; methane; methane production; methanogens; organic matter; oxygen; sulfate-reducing bacteria; sulfates; wastewater
Abstract:
... Anaerobic digestion of organic matter is the major route of biomethane production. However, in the presence of sulfate, sulfate-reducing bacteria (SRB) typically outcompete methanogens, which may reduce or even preclude methane production from sulfate-containing wastewaters. Although sulfate-reduction and methanogenesis can occur simultaneously, our limited understanding of the microbiology of ana ...
DOI:
10.1016/j.watres.2019.02.038

10. Influence of Pre-Hydrolysis on Sewage Treatment in an Up-Flow Anaerobic Sludge BLANKET (UASB) Reactor: A Review

Author:
Rajagopal, Rajinikanth; Choudhury, Mahbuboor Rahman; Anwar, Nawrin; Goyette, Bernard; Rahaman, Md. Saifur
Source:
Water 2019 v.11 no.2
ISSN:
2073-4441
Subject:
anaerobic digestion; biomass; carbon; chemical oxygen demand; commercialization; gas production (biological); hydrolysis; methane; sewage; sewage treatment; total suspended solids; upflow anaerobic sludge blanket reactor; wastewater
Abstract:
... The up-flow anaerobic sludge blanket (UASB) process has emerged as a promising high-rate anaerobic digestion technology for the treatment of low- to high-strength soluble and complex wastewaters. Sewage, a complex wastewater, contains 30–70% particulate chemical oxygen demand (CODP). These particulate organics degrade at a slower rate than the soluble organics found in sewage. Acc ...
DOI:
10.3390/w11020372

11. Improved methane production and energy recovery of post-hydrothermal liquefaction waste water via integration of zeolite adsorption and anaerobic digestion

Author:
Li, Ruirui; Liu, Dianlei; Zhang, Yifeng; Zhou, Jialiang; Tsang, Yiu Fai; Liu, Zhidan; Duan, Na; Zhang, Yuanhui
Source:
The Science of the total environment 2019 v.651 pp. 61-69
ISSN:
0048-9697
Subject:
Chlorella; adsorption; ammonia; anaerobic digestion; biogas; biomass; byproducts; carbon; circular economy; energy recovery; feedstocks; heterocyclic nitrogen compounds; hydrothermal liquefaction; industrial applications; methane; methane production; microalgae; nitrogen; oils; organic wastes; toxic substances; wastewater; zeolites
Abstract:
... Hydrothermal liquefaction (HTL) is a promising technology for converting organic wastes into bio-crude oil, with organic-rich post-hydrothermal liquefaction wastewater (PHWW) as by-product. In this study, zeolite adsorption and anaerobic digestion (AD) were integrated to improve the methane production and energy recovery of PHWW from Chlorella 1067. A statistical design for maximum toxicants remov ...
DOI:
10.1016/j.scitotenv.2018.09.175

12. Intracellular polymers production in anaerobic sludge under salt shock and batch fermentation conditions: Experimental and modelling study

Author:
Huang, Liang; Fu, Xian-Zhong; Cui, Shuo; Liu, Hou-Qi; Yu, Han-Qing; Li, Wen-Wei
Source:
Biochemical engineering journal 2019 v.142 pp. 68-73
ISSN:
1369-703X
Subject:
anaerobic digestion; batch fermentation; biochemical pathways; carbon; carbon sequestration; electrons; glucose; mathematical models; monitoring; osmotic pressure; polymers; salinity; sludge; sodium chloride; solutes; volatile fatty acids; wastewater; wastewater treatment
Abstract:
... High salinity can suppress the metabolic activities of anaerobic sludge in treating saline organic wastewater, but its impacts on production of intracellular polymers, which play important roles in microbial metabolism and carbon storage, remain unclear. This work examined the dynamics of intracellular polymers, functioning as microbial storage (for supplementing re-utilizable carbon source) and c ...
DOI:
10.1016/j.bej.2018.11.013

13. Biogas liquid digestate grown Chlorella sp. for biocrude oil production via hydrothermal liquefaction

Author:
Li, Hugang; Wang, Meng; Wang, Xinfeng; Zhang, Yuanhui; Lu, Haifeng; Duan, Na; Li, Baoming; Zhang, Dongming; Dong, Taili; Liu, Zhidan
Source:
The Science of the total environment 2018 v.635 pp. 70-77
ISSN:
0048-9697
Subject:
Chlorella; acids; aldehydes; anaerobic digestion; biogas; biomass; carbon; chemical composition; feedstocks; gas chromatography-mass spectrometry; hydrocarbons; hydrogen; hydrothermal liquefaction; ketones; liquids; microalgae; nutrients; oils; phenols; poultry manure; ultrafiltration; wastewater
Abstract:
... Microalgae can not only purify and recover the nutrients from wastewater, but also be harvested as wet biomass for the production of biocrude oil via hydrothermal liquefaction (HTL). Chlorella sp. cultivated in the ultrafiltration (UF) membrane treated anaerobic digestion (AD) liquid digestate of chicken manure was used as the feedstock in this study. The present study characterized the products a ...
DOI:
10.1016/j.scitotenv.2018.03.354

14. Biogas from slaughterhouse wastewater anaerobic digestion is driven by the archaeal family Methanobacteriaceae and bacterial families Porphyromonadaceae and Tissierellaceae

Author:
Granada, Camille E.; Hasan, Camila; Marder, Munique; Konrad, Odorico; Vargas, Luciano K.; Passaglia, Luciane M.P.; Giongo, Adriana; de Oliveira, Rafael R.; Pereira, Leandro de M.; de Jesus Trindade, Fernanda; Sperotto, Raul A.
Source:
Renewable energy 2018 v.118 pp. 840-846
ISSN:
0960-1481
Subject:
Methanobacteriaceae; anaerobic digestion; biogas; biomass; bioreactors; carbon; dairy industry; databases; digestion; energy; gases; methane; methane production; microbiological quality; microorganisms; physicochemical properties; poultry; slaughterhouses; swine; wastewater
Abstract:
... Currently, global demand for energy has grown and the search for new ecological energy sources is one of the mostly significant issues we face. The digestion of alternative sources of carbon in anoxic environment produces gas of high calorific value, which is a promising source of alternative energy. Thus, this work aimed to evaluate the biogas production of waste originated from a slaughterhouse ...
DOI:
10.1016/j.renene.2017.11.077

15. Performance of an anaerobic membrane bioreactor for pharmaceutical wastewater treatment

Author:
Svojitka, Jan; Dvořák, Lukáš; Studer, Martin; Straub, Jürg Oliver; Frömelt, Heinz; Wintgens, Thomas
Source:
Bioresource technology 2017 v.229 pp. 180-189
ISSN:
0960-8524
Subject:
Methanosarcina; anaerobic digestion; bioreactors; carbon; chemical oxygen demand; industry; methanol; organic wastes; solvents; wastewater; wastewater treatment
Abstract:
... Anaerobic treatment of wastewater and waste organic solvents originating from the pharmaceutical and chemical industries was tested in a pilot anaerobic membrane bioreactor, which was operated for 580days under different operational conditions. The goal was to test the long-term treatment efficiency and identify inhibitory factors. The highest COD removal of up to 97% was observed when the influen ...
DOI:
10.1016/j.biortech.2017.01.022

16. Treatment of actual slaughterhouse wastewater by combined anaerobic–aerobic processes for biogas generation and removal of organics and nutrients: An optimization study towards a cleaner production in the meat processing industry

Author:
Bustillo-Lecompte, Ciro Fernando; Mehrvar, Mehrab
Source:
Journal of cleaner production 2017 v.141 pp. 278-289
ISSN:
0959-6526
Subject:
activated sludge; aerobic digestion; anaerobic digestion; biogas; carbon; effluents; energy recovery; environmental protection; markets; meat processing plants; meat production; models; nitrogen content; nutrients; operating costs; pH; prediction; response surface methodology; slaughterhouses; total suspended solids; wastewater; wastewater treatment; water reuse
Abstract:
... Environmental protection initiatives and the increasing market demands for green practices are driving the meat processing industry to consider sustainable methods for wastewater treatment since slaughterhouse wastewater (SWW) is seen as detrimental worldwide. Thus, on-site treatment is the preferred option to treat the slaughterhouse effluents for water reuse and potential energy recovery due to ...
DOI:
10.1016/j.jclepro.2016.09.060

17. Anaerobic digestion of wastewater from the production of bleached chemical thermo‐mechanical pulp – higher methane production for hardwood than softwood

Author:
Larsson, Madeleine; Truong, Xu‐Bin; Björn, Annika; Ejlertsson, Jörgen; Svensson, Bo H; Bastviken, David; Karlsson, Anna
Source:
Journal of chemical technology and biotechnology 2017 v.92 no.1 pp. 140-151
ISSN:
0268-2575
Subject:
Betula; Picea; acetic acid; anaerobic digestion; biogas; bleaching; carbon; hardwood; methane production; pulp; pulp and paper mill effluents; raw materials; sludge; softwood; thermomechanical pulping; upflow anaerobic sludge blanket reactor; wastewater
Abstract:
... BACKGROUND: Chemical thermo‐mechanical pulp (CTMP) mills holds a large biomethane potential in their wastewater. Their broadened market has involved increased bleaching and utilization of different raw materials. Therefore, the main aim of this study was to obtain and maintain a well‐functioning anaerobic digestion (AD) process, with a high methane yield and total organic carbon (TOC) reduction, w ...
DOI:
10.1002/jctb.4980

18. Nutrient discharge, sludge quantity and characteristics in biofloc shrimp culture using two methods of carbohydrate fertilization

Author:
Arantes, Rafael; Schveitzer, Rodrigo; Quadros Seiffert, Walter; Lapa, Katt Regina; Vinatea, Luis
Source:
Aquacultural engineering 2017 v.76 pp. 1-8
ISSN:
0144-8609
Subject:
Litopenaeus vannamei; anaerobic digestion; biofloc technology; carbon; fiberglass; juveniles; molasses; nitrogen; nitrogen content; rearing; shrimp; shrimp culture; sludge; sulfates; tanks; total suspended solids; wastewater
Abstract:
... The aim of this study was to evaluate the effect of two methodologies of carbohydrate fertilization on the volume and characteristics of effluent from intensive biofloc shrimp cultivation. Six fiberglass circular tanks (50m2 each) were divided into two treatments. In the treatment called continuous (CONT), the tanks received daily molasses fertilization throughout the entire rearing period. In the ...
DOI:
10.1016/j.aquaeng.2016.11.002

19. Simultaneous Hydrogen and Methane Production Through Multi-Phase Anaerobic Digestion of Paperboard Mill Wastewater Under Different Operating Conditions

Author:
Farghaly, Ahmed; Tawfik, Ahmed
Source:
Applied biochemistry and biotechnology 2017 v.181 no.1 pp. 142-156
ISSN:
0273-2289
Subject:
anaerobic digesters; anaerobic digestion; bioactive properties; carbon; carbon nitrogen ratio; chemical oxygen demand; hydrogen; hydrogen production; methane production; nitrogen; paperboard; volatile fatty acids; wastewater
Abstract:
... Multi-phase anaerobic reactor for H₂ and CH₄ production from paperboard mill wastewater was studied. The reactor was operated at hydraulic retention times (HRTs) of 12, 18, 24, and 36 h, and organic loading rates (OLRs) of 2.2, 1.5, 1.1, and 0.75 kg chemical oxygen demand (COD)/m³ day, respectively. HRT of 12 h and OLR of 2.2 kg COD/m³ day provided maximum hydrogen yield of 42.76 ± 14.5 ml/g CODᵣₑ ...
DOI:
10.1007/s12010-016-2204-7

20. Bioremediation of wastewater from edible oil refinery factory using oleaginous microalga Desmodesmus sp. S1

Author:
Mar, Cho Cho; Fan, Yong; Li, Fu-Li; Hu, Guang-Rong
Source:
International journal of phytoremediation 2016 v.18 no.12 pp. 1195-1201
ISSN:
1549-7879
Subject:
aerobic digestion; aluminum; anaerobic digestion; biofuels; biomass; carbon; chemical oxygen demand; cooking fats and oils; factories; feedstocks; lipid content; manganese; metal ions; microalgae; oxygen; phosphates; phosphorus; phytoremediation; polyunsaturated fatty acids; smell; sodium nitrate; wastewater; zinc
Abstract:
... Edible oil industry produced massive wastewater, which requires extensive treatment to remove pungent smell, high phosphate, carbon oxygen demand (COD), and metal ions prior to discharge. Traditional anaerobic and aerobic digestion could mainly reduce COD of the wastewater from oil refinery factories (WEORF). In this study, a robust oleaginous microalga Desmodesmus sp. S1 was adapted to grow in WE ...
DOI:
10.1080/15226514.2016.1193466

21. Enrichment of Methanosaetaceae on carbon felt and biochar during anaerobic digestion of a potassium-rich molasses stream

Author:
De Vrieze, Jo; Devooght, Arno; Walraedt, Diego; Boon, Nico
Source:
Applied microbiology and biotechnology 2016 v.100 no.11 pp. 5177-5187
ISSN:
0175-7598
Subject:
Methanosaetaceae; anaerobic digestion; biochar; biorefining; carbon; chemical oxygen demand; methane; methane production; methanogens; molasses; potassium; salinity; value added; wastewater
Abstract:
... Biorefineries allow the production of value-added chemicals, yet this also causes the formation of considerable amounts of wastewater that require suitable treatment. These biorefinery wastewaters often contain a high salinity, which inhibits methanogenesis. In this research, molasses were used to mimic these waste streams to evaluate their treatability by anaerobic digestion. Two different carrie ...
DOI:
10.1007/s00253-016-7503-y

22. Comparing the Life Cycle Energy Consumption, Global Warming and Eutrophication Potentials of Several Water and Waste Service Options

Author:
Xue, Xiaobo; Hawkins, Troy R.; Schoen, Mary E.; Garland, Jay; Ashbolt, Nicholas J.
Source:
Water 2016 v.8 no.4
ISSN:
2073-4441
Subject:
anaerobic digestion; carbon; composting; drinking water; electricity; electricity generation; energy recovery; eutrophication; global warming; global warming potential; greenhouse gas emissions; hydrologic cycle; life cycle assessment; nutrients; public water supply; wastewater; wastewater treatment
Abstract:
... Managing the water-energy-nutrient nexus for the built environment requires, in part, a full system analysis of energy consumption, global warming and eutrophication potentials of municipal water services. As an example, we evaluated the life cycle energy use, greenhouse gas (GHG) emissions and aqueous nutrient releases of the whole anthropogenic municipal water cycle starting from raw water extra ...
DOI:
10.3390/w8040154

23. Evaluation of the potential for operating carbon neutral WWTPs in China

Author:
Hao, Xiaodi; Liu, Ranbin; Huang, Xin
Source:
Water research 2015 v.87 pp. 424-431
ISSN:
0043-1354
Subject:
anaerobic digestion; buildings; carbon; chemical oxygen demand; electricity; energy balance; heat pumps; models; sludge; solar collectors; tanks; wastewater; wastewater treatment; water pollution; China
Abstract:
... Carbon neutrality is starting to become a hot topic for wastewater treatment plants (WWTPs) all over the world, and carbon neutral operations have emerged in some WWTPs. Although China is still struggling to control its water pollution, carbon neutrality will definitely become a top priority for WWTPs in the near future. In this review, the potential for operating carbon neutral WWTPs in China is ...
DOI:
10.1016/j.watres.2015.05.050

24. Mathematical modelling of anaerobic digestion processes: applications and future needs

Author:
Batstone, Damien J.; Puyol, Daniel; Flores-Alsina, Xavier; Rodríguez, Jorge
Source:
Re/views in environmental science and bio/technology 2015 v.14 no.4 pp. 595-613
ISSN:
1569-1705
Subject:
anaerobic digestion; anaerobiosis; carbon; electron transfer; energy; hydrogen; mathematical models; metals; methane; spatial variation; sulfur; variance; wastewater; wastewater treatment
Abstract:
... Anaerobic process modelling is a mature and well-established field, largely guided by a mechanistic model structure that is defined by our understanding of underlying processes. This led to publication of the IWA ADM1, and strong supporting, analytical, and extension research in the 15 years since its publication. However, the field is rapidly expanding, in terms of new technology, new processes, ...
DOI:
10.1007/s11157-015-9376-4

25. Carbon and energy fixation of great duckweed Spirodela polyrhiza growing in swine wastewater

Author:
Wang, Wenguo; Yang, Chuang; Tang, Xiaoyu; Zhu, Qili; Pan, Ke; Cai, Denggao; Hu, Qichun; Ma, Danwei
Source:
Environmental science and pollution research international 2015 v.22 no.20 pp. 15804-15811
ISSN:
0944-1344
Subject:
Spirodela polyrhiza; ammonium nitrogen; anaerobic digestion; carbon; energy; photosynthesis; swine; wastewater
Abstract:
... The ability to fix carbon and energy in swine wastewater of duckweeds was investigated using Spirodela polyrhiza as the model species. Cultures of S. polyrhiza were grown in dilutions of both original swine wastewater (OSW) and anaerobic digestion effluent (ADE) based on total ammonia nitrogen (TAN). Results showed that elevated concentrations of TAN caused decreased growth, carbon fixation, and e ...
DOI:
10.1007/s11356-015-4778-y

26. Significance of anaerobic digestion as a source of clean energy in wastewater treatment plants

Author:
Silvestre, G.; Fernández, B.; Bonmatí, A.
Source:
Energy conversion and management 2015 v.101 pp. 255-262
ISSN:
0196-8904
Subject:
anaerobic digestion; biogas; carbon; clean energy; electric energy consumption; energy balance; energy content; energy recovery; nitrogen; sewage sludge; streams; sulfur; wastewater; wastewater treatment
Abstract:
... Nowadays, energy consumption is one of the major concerns of wastewater treatment plants (WWTPs). Time ago, anaerobic digestion was usually implemented for sewage sludge stabilization but energy recovery optimization has recently gained importance. The energy balance of five WWTPs located in Catalonia revealed that depending on the configuration of the plant and its operation, between 39% and 76% ...
DOI:
10.1016/j.enconman.2015.05.033

27. Anaerobic digestion of alkaline bleaching wastewater from a kraft pulp and paper mill using UASB technique

Author:
Larsson, Madeleine; Truong, Xu-Bin; Björn, Annika; Ejlertsson, Jörgen; Bastviken, David; Svensson, Bo H.; Karlsson, Anna
Source:
Environmental technology 2015 v.36 no.12 pp. 1489-1498
ISSN:
1479-487X
Subject:
anaerobic digestion; biogas; bleaching; carbon; environmental technology; hardwood; kraft pulp; leaves; methane; pulp and paper mills; sludge; softwood; upflow anaerobic sludge blanket reactor; wastewater
Abstract:
... Anaerobic digestion of alkaline kraft elemental chlorine-free bleaching wastewater in two mesophilic, lab-scale upflow anaerobic sludge bed reactors resulted in significantly higher biogas production (250 ± 50 vs. 120 ± 30 NmL g) and reduction of filtered total organic carbon (fTOC) (60 ± 5 vs. 43 ± 6%) for wastewater from processing of hardwood (HW) compared with softwood (SW). In all cases, the ...
DOI:
10.1080/09593330.2014.994042

28. Resource recovery from wastewater: application of meta-omics to phosphorus and carbon management

Author:
Sales, Christopher M; Lee, Patrick KH
Source:
Current opinion in biotechnology 2015 v.33 pp. 260-267
ISSN:
0958-1669
Subject:
anaerobic digestion; carbon; energy resources; engineering; guidelines; metabolites; metabolomics; metagenomics; microbial communities; phosphorus; physiology; proteins; proteomics; transcriptomics; wastewater; wastewater treatment
Abstract:
... A growing trend at wastewater treatment plants is the recovery of resources and energy from wastewater. Enhanced biological phosphorus removal and anaerobic digestion are two established biotechnology approaches for the recovery of phosphorus and carbon, respectively. Meta-omics approaches (meta-genomics, transcriptomics, proteomics, and metabolomics) are providing novel biological insights into t ...
DOI:
10.1016/j.copbio.2015.03.003

29. Development of a feeding strategy for high cell and PHA density fed-batch fermentation of Ralstonia eutropha H16 from organic acids and their salts

Author:
Huschner, Franz; Grousseau, Estelle; Brigham, Christopher J.; Plassmeier, Jens; Popovic, Milan; Rha, ChoKyun; Sinskey, Anthony J.
Source:
Process Biochemistry 2015 v.50 pp. 165-172
ISSN:
1359-5113
Subject:
Cupriavidus necator; Elaeis guineensis; anaerobic digestion; batch fermentation; biosynthesis; carbon; composite polymers; fats and oils industry; mechanical properties; oil mill effluents; organic salts; polyhydroxybutyrate; propionic acid; toxicity; value-added products; wastewater
Abstract:
... The utilization of inexpensive carbon sources, including waste streams, for production of value added products has been explored for over two decades. Palm oil mill effluent (POME), a waste water stream from the palm oil industry, can be used to produce organic acids and their salts by anaerobic digestion. These organic acids are suitable as the main carbon source for growth and production of poly ...
DOI:
10.1016/j.procbio.2014.12.004

30. Effect of anaerobiosis on indigenous microorganisms in blackwater with fish offal as co-substrate

Author:
Gunnarsdóttir, Ragnhildur; Heiske, Stefan; Jensen, Pernille Erland; Schmidt, Jens Ejbye; Villumsen, Arne; Jenssen, Petter Deinboll
Source:
Water research 2014 v.63 pp. 1-9
ISSN:
0043-1354
Subject:
Escherichia coli; Streptococcus; aerobic conditions; aerobic digestion; amoxicillin; anaerobic conditions; anaerobic digesters; anaerobic digestion; anaerobiosis; bacteria; carbon; coliphages; energy; feces; halibut; methane production; shrimp; tetracycline; wastewater; Arctic region
Abstract:
... The aim of this study was to compare the effect of mesophilic anaerobic digestion with aerobic storage on the survival of selected indigenous microorganisms and microbial groups in blackwater, including the effect of addition of Greenlandic Halibut and shrimp offal. The methane yield of the different substrate mixtures was determined in batch experiments to study possible correlation between metha ...
DOI:
10.1016/j.watres.2014.05.038

31. Boosting d-lactate production in engineered cyanobacteria using sterilized anaerobic digestion effluents

Author:
Hollinshead, Whitney D.; Varman, Arul M.; You, Le; Hembree, Zachary; Tang, Yinjie J.
Source:
Bioresource technology 2014 v.169 pp. 462-467
ISSN:
0960-8524
Subject:
Synechocystis; acetic acid; anaerobic digestion; biomass; biosynthesis; carbon; culture media; effluents; guidelines; lactate dehydrogenase; lactic acid; methane production; microalgae; secretion; waste treatment; wastewater
Abstract:
... Anaerobic digestion (AD) is an environmentally friendly approach to waste treatment, which can generate N and P-rich effluents that can be used as nutrient sources for microalgal cultivations. Modifications of AD processes to inhibit methanogenesis leads to the accumulation of acetic acid, a carbon source that can promote microalgal biosynthesis. This study tested different AD effluents from munic ...
DOI:
10.1016/j.biortech.2014.07.003

32. Zinc and copper distribution in swine wastewater treated by anaerobic digestion

Author:
Cestonaro do Amaral, André; Kunz, Airton; Radis Steinmetz, Ricardo Luís; Justi, Karin Cristiane
Source:
Journal of environmental management 2014 v.141 pp. 132-137
ISSN:
0301-4797
Subject:
anaerobic conditions; anaerobic digestion; biodegradation; bioreactors; carbon; copper; environmental impact; oxidation; pig manure; solubility; swine; wastewater; zinc
Abstract:
... Swine wastewater contain high levels of metals, such as copper and zinc, which can cause a negative impact on the environment. Anaerobic digestion is a process commonly used to remove carbon, and can act on metal availability (e.g., solubility or oxidation state). The present study aimed to evaluate the influence of anaerobic digestion on total Zn and Cu contents, and their chemical fractioning du ...
DOI:
10.1016/j.jenvman.2014.03.021

33. Simultaneous in-situ excess sludge reduction and removal of organic carbon and nitrogen by a pilot-scale continuous aerobic–anaerobic coupled (CAAC) process for deeply treatment of soybean wastewater

Author:
Li, Xiaoxia; Xu, Ke; Fu, Weichao; Wang, Jun; Zhu, Yi; Li, Chun; Zhou, Xiaohong
Source:
Biochemical engineering journal 2014 v.85 pp. 30-37
ISSN:
1369-703X
Subject:
activated sludge; ammonium nitrogen; anaerobic digestion; bacteria; carbon; chemical oxygen demand; denaturing gradient gel electrophoresis; nitrogen; soybeans; wastewater
Abstract:
... A pilot-scale continuous aerobic–anaerobic coupled (CAAC) process was constructed and implemented for simultaneous excess sludge reduction and removal of organic carbon and nitrogen from the anaerobic effluent generated by an internal circulation (IC) reactor for treating soybean wastewater. When the hydraulic retention time (HRT) was shortened to 1.3 days, the average removal efficiencies for che ...
DOI:
10.1016/j.bej.2014.01.007

34. Impact of co-digestion on existing salt and nutrient mass balances for a full-scale dairy energy project

Author:
Camarillo, Mary Kay; Stringfellow, William T.; Spier, Chelsea L.; Hanlon, Jeremy S.; Domen, Jeremy K.
Source:
Journal of environmental management 2013 v.128 pp. 233-242
ISSN:
0301-4797
Subject:
Sorghum bicolor subsp. drummondii; anaerobic digestion; biogas; carbon; dairy farming; eggs; energy; feedstocks; grape pomace; grass silage; groundwater; groundwater contamination; methane; milk; nitrogen; nutrient content; pasta; phosphorus; potassium; potassium chloride; salinity; slurries; sulfur; wastewater; whey; wine grapes
Abstract:
... Anaerobic digestion of manure and other agricultural waste streams with subsequent energy production can result in more sustainable dairy operations; however, importation of digester feedstocks onto dairy farms alters previously established carbon, nutrient, and salinity mass balances. Salt and nutrient mass balance must be maintained to avoid groundwater contamination and salination. To better un ...
DOI:
10.1016/j.jenvman.2013.04.060
PubMed:
23747374

35. The effect of a buffer function on the semi-continuous anaerobic digestion

Author:
Wang, Qingfeng; Peng, Liyu; Su, Haijia
Source:
Bioresource technology 2013 v.139 pp. 43-49
ISSN:
0960-8524
Subject:
anaerobic digestion; animal manures; buffers; byproducts; carbon; food waste; wastewater
Abstract:
... The characteristics of the long term (90d) anaerobic semi-continuous digestion of food wastes/animal slurry wastewater with different C/N ratio were investigated. The research demonstrates that, in the semi-continuous digestion process, different C/N ratios of substrate led to a significant effect to the characteristic of anaerobic digestion (AD). It is undoubtedly that the semi-continuous AD is e ...
DOI:
10.1016/j.biortech.2013.04.006
PubMed:
23644069

36. Anaerobic digestion of cheese dairy wastewater following chemical oxidation

Author:
Vlyssides, Apostolos G.; Tsimas, Emmanuil S.; Barampouti, Elli Maria P.; Mai, Sofia Th.
Source:
Biosystems engineering 2012 v.113 no.3 pp. 253-258
ISSN:
1537-5110
Subject:
anaerobic digestion; carbon; cheeses; chemical oxygen demand; energy; hydrolysis; lipids; monitoring; nitrogen content; oxidation; pH; sludge; upflow anaerobic sludge blanket reactor; wastewater; wastewater treatment
Abstract:
... As global cheese production has gradually increased there has been a proportional increase in the wastewater produced which poses serious environmental problems. Conventional anaerobic treatment processes are often used for dairy wastewaters. However, lipids inhibition and high suspended solids concentrations are the main operational problems for anaerobic digesters treating dairy wastewater. The ...
DOI:
10.1016/j.biosystemseng.2012.09.001

37. Reconstitution of dewatered food processing residuals with manure to increase energy production from anaerobic digestion

Author:
Wall, David M.; Wu-Haan, Wei; Safferman, Steven I.
Source:
Biomass and bioenergy 2012 v.46 pp. 429-434
ISSN:
0961-9534
Subject:
additives; anaerobic digestion; biogas; biomass; carbon; carbon nitrogen ratio; dairy manure; dewatering; energy; farms; feedstocks; food processing; food waste; landfills; life cycle costing; methane; polymers; sludge; temperature; transportation; wastewater
Abstract:
... Solid residuals generated from dewatering food processing wastewater contain organic carbon that can potentially be reclaimed for energy through anaerobic digestion. This results in the diversion of waste from a landfill and uses it for a beneficial purpose. Dewatering the waste concentrates the carbon, reducing transportation costs to a farm digester where it can be blended with manure to increas ...
DOI:
10.1016/j.biombioe.2012.07.017

38. Mitigating ammonia inhibition of thermophilic anaerobic treatment of digested piggery wastewater: Use of pH reduction, zeolite, biomass and humic acid

Author:
Ho, L.; Ho, G.
Source:
Water research 2012 v.46 no.14 pp. 4339-4350
ISSN:
0043-1354
Subject:
acetates; ammonia; ammonium nitrogen; anaerobic digestion; animal wastes; biomass; carbon; chemical oxygen demand; humic acids; methane; methane production; methanogens; pH; propionic acid; volatile fatty acids; wastewater; zeolites
Abstract:
... High free ammonia released during anaerobic digestion of livestock wastes is widely known to inhibit methanogenic microorganisms and result in low methane production. This was encountered during our earlier thermophilic semi-continuously fed continuously-stirred tank reactor (CSTR) treatment of piggery wastewater. This study explored chemical and biological means to mitigate ammonia inhibition on ...
DOI:
10.1016/j.watres.2012.05.016
PubMed:
22739499

39. Removal of organics and nutrients from food wastewater using combined thermophilic two-phase anaerobic digestion and shortcut biological nitrogen removal

Author:
Cui, Fenghao; Lee, Seungho; Kim, Moonil
Source:
Water research 2011 v.45 no.16 pp. 5279-5286
ISSN:
0043-1354
Subject:
alkalinity; anaerobic digestion; biogas; carbon; chemical oxygen demand; chemical precipitation; energy; nitrogen; nutrients; pH; phosphorus; wastewater
Abstract:
... A process combining pilot-scale two-phase anaerobic digestion and shortcut biological nitrogen removal (SBNR) was developed to treat organics and nutrients (nitrogen and phosphorus) from food wastewater. The thermophilic two-phase anaerobic digestion process was investigated without adjusting the pH of the wastewater for the pre-acidification process. The digested food wastewater was treated using ...
DOI:
10.1016/j.watres.2011.07.030
PubMed:
21849203

40. Integrated ozonation and biomethanization treatments of vinasse derived from ethanol manufacturing

Author:
Siles, J.A.; García-García, I.; Martín, A.; Martín, M.A.
Source:
Journal of hazardous materials 2011 v.188 no.1-3 pp. 247-253
ISSN:
0304-3894
Subject:
anaerobic digestion; biodegradability; bioethanol; carbon; chemical oxygen demand; ethanol; manufacturing; methane; methane production; ozonation; phenols; pretreatment; temperature; vinasse; wastewater
Abstract:
... Anaerobic digestion of vinasse derived from bioethanol manufacturing, in which total COD was found to be 68.56±8.17g/L, was studied in batch laboratory-scale reactors at mesophilic temperature (35°C). The vinasse was subjected to a short ozonation pre-treatment (15min) in which more than 50% reduction of phenols was observed, although the total organic carbon concentration remained approximately s ...
DOI:
10.1016/j.jhazmat.2011.01.096