Large pilot-scale submerged anaerobic membrane bioreactor for the treatment of municipal wastewater and biogas production at 25 °C

Kong, Zhe; Wu, Jiang; Rong, Chao; Wang, Tianjie; Li, Lü; Luo, Zibin; Ji, Jiayuan; Hanaoka, Taira; Sakemi, Shinichi; Ito, Masami; Kobayashi, Shigeki; Kobayashi, Minoru; Qin, Yu; Li, Yu You

doi:10.1016/j.biortech.2020.124123

Cited by 89 publications

(35 citation statements)

References 49 publications

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“…Interestingly, it was found that the process performance was not affected by HRT. Similar results were observed in another study [156], wherein a large pilot-scale submerged AnMBR was used for the treatment of municipal wastewater (Table 3) at 25 • C. It was reported that under HRT of 24 h, 12 h, 8 h and 6 h, the COD removal was equal to 89.5 ± 2.4, 90.0 ± 1, 93.2 ± 1.5 and 91.1 ± 0.8, respectively (Table 4). With regards to synthetic feeds, Ho and Sung [171] have investigated the performance of the AnMBR used for the treatment of synthetic municipal wastewater under temperature of 25 ± 1 • C and HRT equal to 12 h, 8 h and 6 h. It was determined that the quality of the obtained permeate was excellent, regardless of HRT values (Table 4).…”

Section: Impact Of Hydraulic Retention Timesupporting

confidence: 93%

“…Moreover, the excellent ability of the submerged and external AnMBRs technology for the removing of COD and BOD from both real and synthetic municipal wastewater was documented. For instance, Kong et al [156] investigated the treatment of real municipal wastewater in a large pilotscale submerged AnMBR (Table 4). The reactor was equipped with a total of 12 groups of PVDF hollow-fiber membrane units with a total area of 72 m 2 .…”

Section: Performance Of Cod Removalmentioning

confidence: 99%

“…Seco et al [153] demonstrated that considering the calorific power of methane (38,000 KJ/m 3 ) and the typical efficiency of a combined heat and power device (35%), the specific energy produced by the biogas in the AnMBR pilot plant would be 0.073 kWh/m 3 of treated water. In another study [156], it was found that the energy recovered from both biogas and dissolved CH 4 produced in the AnMBR used for the treatment of municipal wastewater can be up to 0.347-0.389 kWh/m 3 .…”

Section: Energy Demandmentioning

confidence: 99%

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Energy-Efficient AnMBRs Technology for Treatment of Wastewaters: A Review

Tomczak

Gryta

2022

Energies

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In recent years, anaerobic membrane bioreactor (AnMBRs) technology, a combination of a biological reactor and a selective membrane process, has received increasing attention from both industrialists and researchers. Undoubtedly, this is due to the fact that AnMBRs demonstrate several unique advantages. Firstly, this paper addresses fundamentals of the AnMBRs technology and subsequently provides an overview of the current state-of-the art in the municipal and domestic wastewaters treatment by AnMBRs. Since the operating conditions play a key role in further AnMBRs development, the impact of temperature and hydraulic retention time (HRT) on the AnMBRs performance in terms of organic matters removal is presented in detail. Although membrane technologies for wastewaters treatment are known as costly in operation, it was clearly demonstrated that the energy demand of AnMBRs may be lower than that of typical wastewater treatment plants (WWTPs). Moreover, it was indicated that AnMBRs have the potential to be a net energy producer. Consequently, this work builds on a growing body of evidence linking wastewaters treatment with the energy-efficient AnMBRs technology. Finally, the challenges and perspectives related to the full-scale implementation of AnMBRs are highlighted.

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Section: Impact Of Hydraulic Retention Timesupporting

confidence: 93%

Section: Performance Of Cod Removalmentioning

confidence: 99%

Section: Energy Demandmentioning

confidence: 99%

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Energy-Efficient AnMBRs Technology for Treatment of Wastewaters: A Review

Tomczak

Gryta

2022

Energies

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“…Pretreatment of organic contaminants with EMBR led to better degradation and lesser by-products formation. A recent report by Kong et al [76] mentioned the use of the largest one-stage submerged AnMBR at the pilot scale. The obtained COD and BOD removal efficiency of municipal wastewater was over 90% and 95%, respectively, with feed COD < 50 mg/L and BOD 5 < 10 mg/L when operated at hydraulic retention time (HRT) of 6 h. This result shows the potential of this reactor to treat wastewater with feed COD in the range of 50-60 mg/L.…”

Section: Membrane Bioreactormentioning

confidence: 99%

Bioremediation of industrial effluents: A synergistic approach

Nagda

Meena

Shah³

2021

J Basic Microbiol

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Industrial wastewater consists of inorganic and organic toxic pollutants that pose a threat to environmental sustainability. The organic pollutants are a menace to the environment and life forms than the inorganic substances and pose teratogenic, mutagenic, carcinogenic, and other serious detrimental effects on the living entities, moreover, they have a gene-altering effect on aquatic life forms and affect the soil fertility and quality. Removal of varying effluents having recalcitrant contaminants with conventional treatment technologies is strenuous. In contrast to physical and chemical methods, biological treatment methods are environmentally friendly, versatile, efficient, and technically feasible with low operational costs and energy footprints. Biological treatment is a secondary wastewater treatment system that utilizes the metabolic activities of microorganisms to oxidize or reduce inorganic and organic compounds and transform them into dense biomass, which later can be removed by the sedimentation process. Biological treatment in bioreactors is an ex situ method of bioremediation and provides the benefits of continuous monitoring under controlled parameters. This paper attempts to provide a review of bioremediation technologies discussing most concerning widespread bioreactors and advances used for different industrial effluents with their comparative merits and limitations.

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“…At bench/pilot scale it is possible to treat domestic wastewater anaerobically at ambient temperatures and as low as 4 • C in different bioreactor configuration (Kong et al, 2021;Lim et al, 2019;Maleki et al, 2019;McAteer et al, 2020;Petropoulos et al, 2017, Ribera-Pi et al, 2020Yang et al, 2020). Baffled or multi compartment reactors benefit the rate-limiting hydrolysis step by providing longer retention time.…”

Section: Introductionmentioning

confidence: 99%