AnMBR as alternative to conventional CSTR to achieve efficient methane production from thermal hydrolyzed sludge at short HRTs

Wandera, Simon M.; Qiao, Wei; Jiang, Mengmeng; Gapani, Dalal E.; Bi, Shaojie; Dong, Renjie

doi:10.1016/j.energy.2018.06.201

Cited by 38 publications

(20 citation statements)

References 31 publications

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“…Since 2008, AnMBR applications have attracted remarkable attention mainly for methane production by WAS digestion. Different operational conditions of AnMBRs were examined to specify the optimum values and figure out the limitations of the technology (Dagnew et al, 2012;Hafuka et al, 2019;Meabe et al, 2013;Wandera et al, 2018). Addition of adsorbents and sludge pretreatment were examined to improve the digestibility and/or filterability of sludge (Joshi & Parker, 2015;Martin-Ryals et al, 2017;Yu et al, 2015).…”

Section: Historical Developmentmentioning

confidence: 99%

“…Single phase AnMBRs with external membrane configuration have been used in most of the studies, which is probably due to easiness of cleaning or replacement of the membrane as well as obtaining high fluxes (Lin et al, 2013). Some studies have applied submerged configurations in single phase AnMBRs (Wandera et al, 2018;Yu et al, 2016). External (Joo et al, 2016) and submerged (Martin-Ryals et al, 2020) configurations have also been examined in two-phase AnMBRs.…”

Section: Configurationsmentioning

confidence: 99%

“…Jeong et al (2007) tested a membrane module at both external and submerged configurations. Biogas can be recirculated to control membrane fouling in different AnMBR configurations (Dagnew et al, 2013;Wandera et al, 2018). Further details regarding the implications of different reactor configurations on filtration performance are discussed in section 3.2.1.…”

Section: Configurationsmentioning

confidence: 99%

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Anaerobic membrane bioreactors for sludge digestion: Current status and future perspectives

Abdelrahman

Özgün

Dereli

et al. 2020

Critical Reviews in Environmental Science and Technology

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Excess sewage sludge in wastewater treatment plants (WWTPs) is regarded the key energy source for achieving energy neutral WWTPs. The anaerobic digestion process transforms sludge-organic matter into methane, which subsequently can be used for heat and electricity production. Conventional anaerobic digesters (ADs) have been used for sludge treatment for many decades, requiring high energy and providing poor effluent quality. Anaerobic membrane bioreactor (AnMBR) technology exhibits a promising option for treatment of high solids concentration streams including sludge. AnMBRs result in an increase in digestion efficiency and enhancement in effluent quality at small footprints. AnMBRs have the potential to reduce capital and operational costs, and produce more energy in comparison to conventional ADs. Thus, energy neutral or positive operation can be achieved with AnMBRs. Besides, nutrient recovery or direct use of permeate will become more feasible in AnMBRs compared to use of sludge supernatant in ADs. However, membrane fouling can limit the feasibility of AnMBRs for sludge treatment, which requires further research. This review paper critically evaluates the current status of AnMBR technology for municipal sludge treatment discussing the effect of different factors on treatment and membrane filtration performances. Furthermore, future research opportunities to enhance applicability of this technology are addressed.

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Section: Historical Developmentmentioning

confidence: 99%

Section: Configurationsmentioning

confidence: 99%

Section: Configurationsmentioning

confidence: 99%

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Anaerobic membrane bioreactors for sludge digestion: Current status and future perspectives

Abdelrahman

Özgün

Dereli

et al. 2020

Critical Reviews in Environmental Science and Technology

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“…Feed acidification was found to significantly decrease inorganic scaling as well as organic matter fouling. Wandera et al (2018) compared the performance of an AnMBR with a CSTR in treating thermally hydrolyzed sludge. Results indicated that, at short HRTs, the AnMBR performed better than the CSTR with respect to methanogenesis.…”

Section: Annual Literature Reviewmentioning

confidence: 99%

Food‐processing wastes

Frenkel

Cummings

Maillacheruvu

et al. 2020

Water Environment Research

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Literature published in 2018 and literature published in 2019 related to food-processing wastes treatment for industrial applications are reviewed. This review is a subsection of the Treatment Systems section of the annual Water Environment Federation literature review and covers the following food-processing industries and applications: general, meat and poultry, fruits and vegetables, dairy and beverage, and miscellaneous treatment of food wastes.

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“…The other significant aspect of AnMBR operation is membrane fouling [17,18]. The effect of SRT on membrane fouling is important in AnMBR stable operation.…”

Section: Introductionmentioning

confidence: 99%

Effects of Solids Retention Time on the Anaerobic Membrane Bioreactor with Yttria-Based Ceramic Membrane Treating Domestic Wastewater at Ambient Temperature

Nilusha

Zhang

et al. 2020

Membranes

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The effects of solid retention times (SRTs) (100 days, 50 days, 25 days) on the performance, microbial community, and membrane fouling of a lab-scale anaerobic yttria-based ceramic membrane bioreactor (AnCMBR) treating synthetic domestic wastewater at ambient temperature (31.2 ± 2.7 °C) were examined. The soluble chemical oxygen demand (SCOD) removal was higher (89.6%) at 25 days SRT compared with 50 days (39.61%) and 100 days (34.3%) SRT. At 100 days SRT, more Bacteroidetes, Firmicutes, and Proteobacteria were present in the microbial community. At 25 days SRT, more Chloroflexi, Synergistetes, and Pastescibacteria emerged, contributing to the stable performance. The SRT of 25 days has resulted in a more stable microbial community compared with 50 days and 100 days SRT. Both bacterial and archaeal community diversities were higher at 25 days SRT, and the specific production of soluble microbial by-products (SMPs) and extracellular polymeric substances (EPSs) were higher at 25 days SRT as well. Consequently, the membrane flux was lower at 25 days SRT with the increased particle size and the enhanced SMPs and EPSs production. Fourier transform infrared spectroscopy analysis (FTIR) and three-dimensional excitation and emission matrix (3D-EEM) analysis showed that protein and SMPs were the major membrane foulants at all SRT stages. In this study, SRT at 25 days was favorable for the stable operation of an AnCMBR treating domestic wastewater at ambient temperature.

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AnMBR as alternative to conventional CSTR to achieve efficient methane production from thermal hydrolyzed sludge at short HRTs

Cited by 38 publications

References 31 publications

Anaerobic membrane bioreactors for sludge digestion: Current status and future perspectives

Anaerobic membrane bioreactors for sludge digestion: Current status and future perspectives

Food‐processing wastes

Effects of Solids Retention Time on the Anaerobic Membrane Bioreactor with Yttria-Based Ceramic Membrane Treating Domestic Wastewater at Ambient Temperature

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