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Kadam R, Khanthong K, Park B, Jun H, Park J. Realizable wastewater treatment process for carbon neutrality and energy sustainability: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 328:116927. [PMID: 36473349 DOI: 10.1016/j.jenvman.2022.116927] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/29/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Despite a quick shift of global goals toward carbon-neutral infrastructure, activated sludge based conventional systems inhibit the Green New Deal. Here, a municipal wastewater treatment plant (MWWTP) for carbon neutrality and energy sustainability is suggested and discussed based on realizable technical aspects. Organics have been recovered using variously enhanced primary treatment techniques, thereby reducing oxygen demand for the oxidation of organics and maximizing biogas production in biological processes. Meanwhile, ammonium in organic-separated wastewater is bio-electrochemically oxidized to N2 and reduced to H2 under completely anaerobic conditions, resulting in the minimization of energy requirements and waste sludge production, which are the main problems in activated sludge based conventional processes. The anaerobic digestion process converts concentrated primary sludge to biomethane, and H2 gas recovered from nitrogen upgrades the biomethane quality by reducing carbon dioxide in biogas. Based on these results, MWWTPs can be simplified and improved with high process and energy efficiencies.
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Affiliation(s)
- Rahul Kadam
- Department of Advanced Energy Engineering, Chosun University, Gwangju, 61452, Republic of Korea
| | - Kamonwan Khanthong
- Department of Advanced Energy Engineering, Chosun University, Gwangju, 61452, Republic of Korea
| | - Byeongchang Park
- Department of Environmental Engineering, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Hangbae Jun
- Department of Environmental Engineering, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Jungyu Park
- Department of Advanced Energy Engineering, Chosun University, Gwangju, 61452, Republic of Korea.
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Kamyab H, Yuzir MA, Riyadi FA, Ostadrahimi A, Khademi T, Ghfar AA, Kirpichnikova I. Electrochemical oxidation of palm oil mill effluent using platinum as anode: Optimization using response surface methodology. ENVIRONMENTAL RESEARCH 2022; 214:113993. [PMID: 35944623 DOI: 10.1016/j.envres.2022.113993] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
This work investigates the electrochemical oxidation of palm oil mill effluent (POME) treatment using platinum (Pt) as anode and graphite as a cathode. The response surface methodology was used to investigate the relationships between different factors conditions (voltage, electrolysis time and chemical support) and responses of the treatment (chemical oxygen demand reduction, colour removal, and total oil removal). A quadratic mathematical model was chosen for all responses using Box-Behnken Design (BBD) with R2 0.9853 for COD reduction, R2 0.9478 for colour removal and R2 0.9185 for total oil removal. According to Derringer's function desirability, under the optimum condition (Voltage 15, electrolysis time 2Â h, and 19.95Â mg/L NaCl) of POME treatment, 84% of COD reduction, 98% of colour removal and 99% total oil of removal could be achieved. These results indicate that platinum as an anode material is effective for the electrochemical oxidation treatment of POME.
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Affiliation(s)
- Hesam Kamyab
- Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India; Electric Power Station, Network, and Supply System, South Ural State University (National Research University), 76 Prospekt Lenina, 454080, Chelyabinsk, Russian Federation.
| | - Muhammad Ali Yuzir
- Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
| | - Fatimah Azizah Riyadi
- Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | | | - Tayebeh Khademi
- Azman Hashim International Business School (AHIBS), Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Ayman A Ghfar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Irina Kirpichnikova
- Electric Power Station, Network, and Supply System, South Ural State University (National Research University), 76 Prospekt Lenina, 454080, Chelyabinsk, Russian Federation
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Singh S, Rinta-Kanto JM, Lens PNL, Kokko M, Rintala J, O'Flaherty V, Ijaz UZ, Collins G. Microbial community assembly and dynamics in Granular, Fixed-Biofilm and planktonic microbiomes valorizing Long-Chain fatty acids at 20 °C. BIORESOURCE TECHNOLOGY 2022; 343:126098. [PMID: 34626764 DOI: 10.1016/j.biortech.2021.126098] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
Distinct microbial assemblages evolve in anaerobic digestion (AD) reactors to drive sequential conversions of organics to methane. The spatio-temporal development of three such assemblages (granules, biofilms, planktonic) derived from the same inoculum was studied in replicated bioreactors treating long-chain fatty acids (LCFA)-rich wastewater at 20 °C at hydraulic retention times (HRTs) of 12-72 h. We found granular, biofilm and planktonic assemblages differentiated by diversity, structure, and assembly mechanisms; demonstrating a spatial compartmentalisation of the microbiomes from the initial community reservoir. Our analysis linked abundant Methanosaeta and Syntrophaceae-affiliated taxa (Syntrophus and uncultured) to their putative, active roles in syntrophic LCFA bioconversion. LCFA loading rates (stearate, palmitate), and HRT, were significant drivers shaping microbial community dynamics and assembly. This study of the archaea and syntrophic bacteria actively valorising LCFAs at short HRTs and 20 °C will help uncover the microbiology underpinning anaerobic bioconversions of fats, oil and grease.
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Affiliation(s)
- Suniti Singh
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33104 Tampere University, Finland; UNESCO-IHE, Institute for Water Education, Westvest 7, 2611AX Delft, the Netherlands; School of Chemical and Biological Sciences, and Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland
| | - Johanna M Rinta-Kanto
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33104 Tampere University, Finland
| | - Piet N L Lens
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33104 Tampere University, Finland; UNESCO-IHE, Institute for Water Education, Westvest 7, 2611AX Delft, the Netherlands
| | - Marika Kokko
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33104 Tampere University, Finland
| | - Jukka Rintala
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33104 Tampere University, Finland
| | - Vincent O'Flaherty
- School of Chemical and Biological Sciences, and Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland
| | - Umer Zeeshan Ijaz
- Water and Environment Group, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom.
| | - Gavin Collins
- School of Chemical and Biological Sciences, and Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland; Water and Environment Group, School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
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4
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Performance Evaluation of a Field-Scale Anaerobic Baffled Reactor as an Economic and Sustainable Solution for Domestic Wastewater Treatment. SUSTAINABILITY 2021. [DOI: 10.3390/su131810461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The present study explored the efficiency of a four-chambered anaerobic baffled reactor (ABR) as a cost-effective and sustainable method of organic pollutant and pathogen removal from domestic wastewater, under a range of environmental conditions. An ABR with a circular additional filter at the outlet pipe was constructed to treat wastewater from a residential colony of 108 households with an average inflow of 110 m3/day and a nominal hydraulic retention time (HRT) of 20 h. Analysis of the chemical oxygen demand (COD), total nitrogen, sulfate and phosphate load, and total coliform removal for 2 years of operation, 2015 and 2017, showed a COD of 46%, sulfate load of 28%, phosphate load of 51% and total nitrogen of 28% for 2015, compared to a COD of 48%, sulfate load of 44%, phosphate load of 58% and total nitrogen of 31% for 2017. The lack of a significant effect of sludge removal suggested a stable process. The overall efficiency of the ABR increased in the summer, including for pathogen removal, which was significantly higher during the summer months of both years. Overall, the ABR was found to be able to consistently treat primary wastewater, although tertiary effluent treatment was still required before water reuse or final discharge.
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Saputera WH, Amri AF, Daiyan R, Sasongko D. Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective. MATERIALS 2021; 14:ma14112846. [PMID: 34073400 PMCID: PMC8198294 DOI: 10.3390/ma14112846] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 01/29/2023]
Abstract
The palm oil industry produces liquid waste called POME (palm oil mill effluent). POME is stated as one of the wastes that are difficult to handle because of its large production and ineffective treatment. It will disturb the ecosystem with a high organic matter content if the waste is disposed directly into the environment. The authorities have established policies and regulations in the POME waste quality standard before being discharged into the environment. However, at this time, there are still many factories in Indonesia that have not been able to meet the standard of POME waste disposal with the existing treatment technology. Currently, the POME treatment system is still using a conventional system known as an open pond system. Although this process can reduce pollutants’ concentration, it will produce much sludge, requiring a large pond area and a long processing time. To overcome the inability of the conventional system to process POME is believed to be a challenge. Extensive effort is being invested in developing alternative technologies for the POME waste treatment to reduce POME waste safely. Several technologies have been studied, such as anaerobic processes, membrane technology, advanced oxidation processes (AOPs), membrane technology, adsorption, steam reforming, and coagulation. Among other things, an AOP, namely photocatalytic technology, has the potential to treat POME waste. This paper provides information on the feasibility of photocatalytic technology for treating POME waste. Although there are some challenges in this technology’s large-scale application, this paper proposes several strategies and directions to overcome these challenges.
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Affiliation(s)
- Wibawa Hendra Saputera
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia; (A.F.A.); (D.S.)
- Center for Catalysis and Reaction Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Research Center for New and Renewable Energy (PPEBT), Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Correspondence: ; Tel.: +62-82117686235
| | - Aryan Fathoni Amri
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia; (A.F.A.); (D.S.)
| | - Rahman Daiyan
- Particles and Catalysis Research Group, School of Chemical Engineering, Faculty of Engineering, The University of New South Wales, Sydney, NSW 2052, Australia;
| | - Dwiwahju Sasongko
- Research Group on Energy and Chemical Engineering Processing System, Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia; (A.F.A.); (D.S.)
- Research Center for New and Renewable Energy (PPEBT), Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
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Abstract
Ponding system or land application techniques are widely used at industrial scale to treat palm oil mill effluent (POME) prior to discharge to the environment. POME is considered as one of the major problems that has generated voluminously from the palm oil industries. The main purpose of this article is to organize the scattered available information on various aspects and a wide range of promising current POME treatments including biological microorganisms, physicochemical methods of coagulation, and membrane and thermochemical process. In addition, the integrated system of anaerobic-aerobic bioreactor (IAAB), which has been touted as highly efficient with easy control at acceptable temperature range and shorter treatment time, has potential to be exploited for POME treatment. The main influencing factors for IAAB POME treatment are highlighted as outstanding characteristics for challenges and future prospects.
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Elsamadony M, Mostafa A, Fujii M, Tawfik A, Pant D. Advances towards understanding long chain fatty acids-induced inhibition and overcoming strategies for efficient anaerobic digestion process. WATER RESEARCH 2021; 190:116732. [PMID: 33316662 DOI: 10.1016/j.watres.2020.116732] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 11/24/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
The inhibition of the anaerobic digestion (AD) process, caused by long chain fatty acids (LCFAs), has been considered as an important issue in the wastewater treatment sector. Proper understanding of mechanisms behind the inhibition is a must for further improvements of the AD process in the presence of LCFAs. Through analyzing recent literature, this review extensively describes the mechanism of LCFAs degradation, during AD. Further, a particular focus was directed to the key parameters which could affect such process. Besides, this review highlights the recent research efforts in mitigating LCFAs-caused inhibition, through the addition of commonly used additives such as cations and natural adsorbents. Specifically, additives such as bentonite, cation-based adsorbents, as well as zeolite and other natural adsorbents for alleviating the LCFAs-induced inhibition are discussed in detail. Further, panoramic evaluations for characteristics, various mechanisms of reaction, merits, limits, recommended doses, and preferred conditions for each of the different additives are provided. Moreover, the potential for increasing the methane production via pretreatment using those additives are discussed. Finally, we provide future horizons for the alternative materials that can be utilized, more efficiently, for both mitigating LCFAs-based inhibition and boosting methane potential in the subsequent digestion of LCFA-related wastes.
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Affiliation(s)
- Mohamed Elsamadony
- Tokyo Institute of Technology, Civil and Environmental Engineering Department, Meguro-ku, Tokyo, 152-8552, Japan; Tanta University, Faculty of Engineering, Public Works Engineering Department, 31521, Tanta City, Egypt.
| | - Alsayed Mostafa
- Department of Smart City Engineering, Inha University, 100 Inharo, Nam-gu, Incheon 22212, South Korea
| | - Manabu Fujii
- Tokyo Institute of Technology, Civil and Environmental Engineering Department, Meguro-ku, Tokyo, 152-8552, Japan.
| | - Ahmed Tawfik
- National Research Centre, Water Pollution Research Department, Giza, 12622, Egypt
| | - Deepak Pant
- Separation & Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol 2400, Belgium
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Su C, Deng Q, Lu Y, Pan J, Chen W, Chen S, Deng X, Lin X, Huang Z. Effect of circulation and micro-aeration on sludge characteristics and microbial community in an ABR for treating traditional Chinese medicine wastewater. ENVIRONMENTAL TECHNOLOGY 2020; 41:3284-3296. [PMID: 30961470 DOI: 10.1080/09593330.2019.1604818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 03/31/2019] [Indexed: 06/09/2023]
Abstract
The effects of circulation reflux and micro-aeration on the performance of a modified anaerobic baffled reactor (ABR) for treatment of traditional Chinese medicine (TCM) wastewater were evaluated. The characteristics of anaerobic sludge and microbial community structure in the modified ABR were also investigated. The results indicated that with conditions of reflux ratio of 1, reflux ratio of 2, reflux ratio of 2 with micro-aeration, and reflux ratio of 3, the modified ABR achieved an average COD removal efficiency of 90%, 87.7%, 87.8%, and 88.4%, respectively. In addition, the NH3-N average removal efficiency was 45.1%, 50%, 55.9%, and 55.4%, respectively. The analysis of excitation-emission matrix (EEM) fluorescence spectra of soluble microbial products (SMP) and extracellular polymeric substances (EPS) showed that there were tyrosine-like, aromatic protein-like, and coenzyme F420 substances in the sludge. The EPS were analysed by the Fourier transform infrared spectroscopy (FTIR), which showed that aromatic compounds were partially degraded, while the protein and polysaccharide compounds increased in each compartment of the modified ABR. Interestingly, the microbial community of anaerobic sludge analysis results showed that Chloroflexi was the dominant in the first, third and fourth compartments. Meanwhile, Levilinea and Methanothrix were the dominant species in the first and third compartments at the genus level.
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Affiliation(s)
- Chengyuan Su
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
- University Key Laboratory of Karst Ecology and Environmental Change of Guangxi Province, Guangxi Normal University, Guilin, People's Republic of China
| | - Qiujin Deng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Yuxiang Lu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Jiaqi Pan
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Wuyang Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Shenglong Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Xue Deng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Xiangfeng Lin
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
| | - Zhi Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education, Guilin, People's Republic of China
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Tanikawa D, Seo S, Motokawa D. Development of a molasses wastewater treatment system equipped with a biological desulfurization process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:24738-24748. [PMID: 31820243 DOI: 10.1007/s11356-019-07077-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
In this study, a laboratory scale experiment for the treatment of synthetic molasses wastewater using a combination of an anaerobic baffled reactor (ABR) and a two-stage down-flow hanging sponge (TSDHS) reactor (ABR-TSDHS system) was conducted. The TSDHS comprised a closed-type first-stage down-flow hanging sponge (first DHS) for desulfurization and an open-type second-stage DHS (second DHS) for post-treatment of effluent from the ABR and first DHS. Effluent from the second DHS was sprinkled on top of the first DHS, whereas biogas produced from the ABR was supplied to its bottom. A chemical oxygen demand (COD) removal efficiency of 88.3% was found for the ABR-TSDHS system during the final treatment phase. The ABR achieved a maximum organic loading rate (OLR) of 3.70 kg COD/(m3 day). Most of the organic matter was degraded in the first compartment of the ABR, with methane-producing archaea as its main consumer. The biogas generated by the ABR contained high concentrations of hydrogen sulfide (up to 4,500 ppm). In the TSDHS, the first DHS achieved 87.3% hydrogen sulfide removal via dissolution into sprinkled effluent water. Dissolved sulfide in the first DHS effluent was oxidized to sulfate in the second DHS in the absence of aeration. In addition, 85.0% of the ammonia and 57.7% of the total nitrogen were removed in the second DHS via biological reactions, including sulfur-based autotrophic denitrification. Therefore, the ABR-TSDHS system can be applied to not only molasses wastewater treatment but also the desulfurization of the produced biogas.
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Affiliation(s)
- Daisuke Tanikawa
- Department of Civil and Environmental Engineering, National Institute of Technology (KOSEN), Kure College, 2-2-11, Aga-minami, Kure, Hiroshima, 737-8506, Japan.
| | - Shogo Seo
- Advanced Course, Project Design Engineering, National Institute of Technology (KOSEN), Kure College, 2-2-11, Aga-minami, Kure, Hiroshima, 737-8506, Japan
| | - Daisuke Motokawa
- Department of Civil and Environmental Engineering, National Institute of Technology (KOSEN), Kure College, 2-2-11, Aga-minami, Kure, Hiroshima, 737-8506, Japan
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Usman M, Zha L, Abomohra AEF, Li X, Zhang C, Salama ES. Evaluation of animal- and plant-based lipidic waste in anaerobic digestion: kinetics of long-chain fatty acids degradation. Crit Rev Biotechnol 2020; 40:733-749. [DOI: 10.1080/07388551.2020.1756215] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Muhammad Usman
- School of Life Sciences, Lanzhou University, Lanzhou, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou, Gansu Province, China
| | - Lajia Zha
- School of Life Sciences, Lanzhou University, Lanzhou, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou, Gansu Province, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou, Gansu Province, China
| | - Abd El-Fatah Abomohra
- New Energy Department, School of Energy and Power Engineering, Jiangsu University, Jiangsu Province, China
- Botany Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Xiangkai Li
- School of Life Sciences, Lanzhou University, Lanzhou, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou, Gansu Province, China
| | - Chunjiang Zhang
- School of Life Sciences, Lanzhou University, Lanzhou, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou, Gansu Province, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou, Gansu Province, China
| | - El-Sayed Salama
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu Province, China
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Effect of ElasticFiller on Pollutant Removal in Each Compartment of ABR. SUSTAINABILITY 2020. [DOI: 10.3390/su12062325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study was aimed to explore the effect of elastic filler on pollutant removal in each compartment of anaerobic baffled reactor (ABR), ABR with elastic filler, and ABR without elastic filler were compared. The result showed that elastic filler increased the removal rate of chemical oxygen demand (COD) and suspended solid (SS) in the first compartment, decreased the removal rate of COD and SS in the second and third compartments, and had little effect on the removal rate of COD and SS in the fourth compartment. Elastic filler increased the increase rate of ammonia nitrogen in the first and second compartments, decreased the increase rate of ammonia nitrogen in the third and fourth compartments; elastic filler had little effect on the nitrate nitrogen, nitrite nitrogen, total nitrogen and total phosphorus in each compartment of ABR. In general, elastic filler could improve the removal rate of COD and SS of ABR but had little effect on the increase rate of ammonia nitrogen, the removal rate of nitrate nitrogen, nitrite nitrogen, total nitrogen and total phosphorus. Elastic filler slightly increased the concentration of formic acid, acetic acid, propionic acid, and butyric acid in the first compartment of ABR, and slightly decreased the sum of formic acid and acetic acid in the second, hird and fourth compartments. Elastic filler did not change the composition of dissolved organic matter (DOM)in each compartment of ABR, but changed the kinds and contents of aromatic proteins, soluble microbial products and humic acids in each compartment of ABR. Elastic filler had little effect on ABR in the removal of aromatic proteins, but they could improve the removal rate of soluble microbial products and humicacids. Elastic filler slightly increased the degree of DOM humification (or maturity) in ABR effluent, but did not change the main source of humus like substance and DOM in ABR effluent.
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Tanikawa D, Yamashita S, Kataoka T, Sonaka H, Hirakata Y, Hatamoto M, Yamaguchi T. Non-aerated single-stage nitrogen removal using a down-flow hanging sponge reactor as post-treatment for nitrogen-rich wastewater treatment. CHEMOSPHERE 2019; 233:645-651. [PMID: 31195268 DOI: 10.1016/j.chemosphere.2019.06.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/27/2019] [Accepted: 06/01/2019] [Indexed: 06/09/2023]
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 fed to the DHS reactor. The highest nitrogen removal efficiency (59.5 ± 5.4%) was achieved during phase 4, when a sodium acetate solution was fed into bottom section of the DHS reactor. In the DHS reactor, the nitrification occurred in the upper and middle sections. Then, after adding the sodium acetate solution, denitrification occurred. The final chemical oxygen demand, ammonia, and total inorganic nitrogen concentrations in the DHS reactor effluent were 37 ± 24 mg/L, 34 ± 5 mgN/L, and 42 ± 8 mgN/L, respectively. These concentrations were sufficient to meet the effluent standards of the Vietnamese natural rubber industry, which are the strictest in South-East Asia. The dominant bacteria in the sludge retained by the reactor's sponge media were the nitrifying bacteria Nitrosovibrio (0.2%) and Nitrospira (0.2-0.3%), the denitrifying bacteria Hylemonella (1.0-13.7%), Pseudoxanthomonas (1.2-2.1%), and Amaricoccus (2.4-3.5%), and the anammox bacterium Candidatus Brocadia (0.1-0.2%). Significant amounts of the nitrogen-fixing bacterium Xanthobacter (11.2-14.8%) and the rubber-degrading bacterium Gordonia (11.0-28.6%) were also found in the DHS reactor. These bacteria were thus considered to be the key microbes for nitrogen removal in a DHS reactor fed with a carbon source for denitrification.
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Affiliation(s)
- Daisuke Tanikawa
- Department of Civil and Environmental Engineering, National Institute of Technology, Kure College, P.C. 7378506, Kure, Japan.
| | - Sumire Yamashita
- Department of Civil and Environmental Engineering, National Institute of Technology, Kure College, P.C. 7378506, Kure, Japan
| | - Taiki Kataoka
- Advanced Course, Project Design Engineering, National Institute of Technology, Kure College, P.C. 7378506, Kure, Japan
| | - Hideaki Sonaka
- Department of Science and Technology Innovation, Nagaoka University of Technology, P.C. 9402188, Nagaoka, Japan
| | - Yuga Hirakata
- Department of Science and Technology Innovation, Nagaoka University of Technology, P.C. 9402188, Nagaoka, Japan
| | - Masashi Hatamoto
- Department of Civil and Environmental Engineering, Nagaoka University of Technology, P.C. 9402188, Nagaoka, Japan
| | - Takashi Yamaguchi
- Department of Science and Technology Innovation, Nagaoka University of Technology, P.C. 9402188, Nagaoka, Japan
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13
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Su C, Deng Q, Lu Y, Qin R, Chen S, Wei J, Chen M, Huang Z. Effects of hydraulic retention time on the performance and microbial community of an anaerobic baffled reactor-bioelectricity Fenton coupling reactor for treatment of traditional Chinese medicine wastewater. BIORESOURCE TECHNOLOGY 2019; 288:121508. [PMID: 31132595 DOI: 10.1016/j.biortech.2019.121508] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/14/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
The aim of the present paper was to investigate the effects of hydraulic retention time (HRT) on the performance and microbial community dynamics of an anaerobic baffled reactor-bioelectricity Fenton (ABR-BEF) coupling reactor for treating traditional Chinese medicine (TCM) wastewater. The results show that the average removal of chemical oxygen demand (COD) and NH3-N at HRTs of 24 h and 18 h were high (>90% and >70%, respectively), but decreased to about 40% and 30% when operating at 12 h HRT. For the electrical production performance, the maximum power density was 196.86 mW/m3 at a HRT of 18 h. Methanomicrobia was the dominant archaea in the coupling reactor and the relative abundance of Methanothrix and Methanolinea increased with decreasing HRT. For the bacteria, the relative abundance of Planctomycetia significantly decreased with a short HRT; however, Anaerolineaceae was always the dominant bacterial taxa, which could guarantee efficient treatment of TCM wastewater.
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Affiliation(s)
- Chengyuan Su
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China; University Key Laboratory of Karst Ecology and Environmental Change of Guangxi Province (Guangxi Normal University), 15 Yucai Road, Guilin 541004, PR China.
| | - Qiujin Deng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
| | - Yuxiang Lu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
| | - Ronghua Qin
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
| | - Shenglong Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
| | - Jingwei Wei
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
| | - Menglin Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
| | - Zhi Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China
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14
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Granular Sludge Bed Processes in Anaerobic Digestion of Particle-Rich Substrates. ENERGIES 2019. [DOI: 10.3390/en12152940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Granular sludge bed (GSB) anaerobic digestion (AD) is a well-established method for efficient wastewater treatment, limited, however, by the wastewater particle content. This review is carried out to investigate how and to what extent feed particles influence GSB to evaluate the applicability of GSB to various types of slurries that are abundantly available. Sludge bed microorganisms evidently have mechanisms to retain feed particles for digestion. Disintegration and hydrolysis of such particulates are often the rate-limiting steps in AD. GSB running on particle-rich substrates and factors that affect these processes are stdied especially. Disintegration and hydrolysis models are therefore reviewed. How particles may influence other key processes within GSB is also discussed. Based on this, limitations and strategies for effective digestion of particle-rich substrates in high-rate AD reactors are evaluated.
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15
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Ismail S, Elsamadony M, Fujii M, Tawfik A. Evaluation and optimization of anammox baffled reactor (AnBR) by artificial neural network modeling and economic analysis. BIORESOURCE TECHNOLOGY 2019; 271:500-506. [PMID: 30201321 DOI: 10.1016/j.biortech.2018.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/29/2018] [Accepted: 09/01/2018] [Indexed: 06/08/2023]
Abstract
Anammox baffled reactor (AnBR) had a moderate start-up period of 53 days. Interestingly, tangled relationships between key parameters affecting anammox performance were observed, i.e., polynomial function for nitrogen loading rate (NLR) with extracellular polymeric substances (EPS), linear relationships between EPS with granules diameter, granules diameter with settling velocity, and settling velocity with biomass concentration. The correlation coefficients (R2) were 0.97, 0.84, 0.86, and 0.88, respectively. Furthermore, a multi-layered feed forward artificial neural network (ANN) was utilized for simulating and predicting the performance of AnBR. An ANN structure of two hidden layers with four neurons at 1st layer and eight neurons at 2nd layer achieved the best goodness of fit with the minimum mean squared error (MSE) and maximum R2 of 0.002 and 0.99, respectively. Additionally, economic assessment stated that using AnBR at NLR of 4.04 ± 0.10 kg-N/m3/day achieved the maximum net present value of $48100.9.
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Affiliation(s)
- Sherif Ismail
- Environmental Engineering Department, Egypt-Japan University of Science and Technology E-JUST, P.O. Box 179 New Borg Al Arab City, Alexandria 21934, Egypt; Civil and Environmental Engineering Department, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan; Environmental Engineering Department, Zagazig University, Zagazig City 44519, Egypt.
| | - Mohamed Elsamadony
- Public Works Engineering Department, Faculty of Engineering, Tanta University, Tanta City 31521, Egypt
| | - Manabu Fujii
- Civil and Environmental Engineering Department, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan
| | - Ahmed Tawfik
- Water Pollution Research Department, National Research Centre, Giza 12622, Egypt
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