Performance of anaerobic membrane bioreactor during digestion and thickening of aerobic membrane bioreactor excess sludge

Hafuka, Akira; Mimura, Kazuhisa; Ding, Quan; Yamamura, Hiroshi; Satoh, Hisashi; Watanabe, Yoshimasa

doi:10.1016/j.biortech.2016.06.124

Cited by 19 publications

(6 citation statements)

References 22 publications

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“…The mixed liquor alkalinity was stable at 2216 ± 220 mg CaCO 3 /L. A relatively high ORP (-190 ± 14 mV) was observed in this study compared to conventional anaerobic treatment processes (Hafuka et al, 2016). The high ORP value observed here was possibly because of the circulation of biomass to the external membrane module and regular mixed liquor sampling for ORP measurement.…”

Section: Biological Stability Of Anmbrmentioning

confidence: 43%

An anaerobic membrane bioreactor – membrane distillation hybrid system for energy recovery and water reuse: Removal performance of organic carbon, nutrients, and trace organic contaminants

Song

Luo

McDonald

et al. 2018

Science of The Total Environment

110

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In this study, a direct contact membrane distillation (MD) unit was integrated with an anaerobic membrane bioreactor (AnMBR) to simultaneously recover energy and produce high quality water for reuse from wastewater. Results show that AnMBR could produce 0.3-0.5L/g COD biogas with a stable methane content of approximately 65%. By integrating MD with AnMBR, bulk organic matter and phosphate were almost completely removed. The removal of the 26 selected trace organic contaminants by AnMBR was compound specific, but the MD process could complement AnMBR removal, leading to an overall efficiency from 76% to complete removal by the integrated system. The results also show that, due to complete retention, organic matter (such as humic-like and protein-like substances) and inorganic salts accumulated in the MD feed solution and therefore resulted in significant fouling of the MD unit. As a result, the water flux of the MD process decreased continuously. Nevertheless, membrane pore wetting was not observed throughout the operation.

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Section: Biological Stability Of Anmbrmentioning

confidence: 43%

An anaerobic membrane bioreactor – membrane distillation hybrid system for energy recovery and water reuse: Removal performance of organic carbon, nutrients, and trace organic contaminants

Song

Luo

McDonald

et al. 2018

Science of The Total Environment

110

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“…DM layer has an important role in particles rejection in anaerobic dynamic membrane bioreactors (AnDMBRs) (Ersahin et al, 2014). Up to now, PVDF (Zheng et al, 2018), PES (Ghyoot & Verstraete, 1997;Martin-Ryals et al, 2020), polysulfone (Joo et al, 2016;Kim et al, 2017;Liew Abdullah et al, 2005), polythene (Li et al, 2015;Xu et al, 2010Xu et al, , 2011, polytetrafluoroethylene (Hafuka et al, 2016(Hafuka et al, , 2019, ceramic (Kayawake et al, 1991;Kim & Chung, 2012;Kim et al, 2005;Kim & Somiya, 2001a, 2001bKim, Somiya, et al, 2002;Meabe et al, 2013) and stainless steel (Kim & Jung, 2007) membranes, and DMs using different support materials such as nylon mesh (Joo et al, 2016), Dacron meshes (Yu et al, 2014(Yu et al, , 2016, silk filter (Liu et al, 2016), woven fabric filter (Kooijman et al, 2017) and woven fiber filter (Pillay et al, 1994) have been used for solid-liquid separation in AnMBRs treating sludge. Most of the membrane types applied in AnMBRs for sludge filtration were ultrafiltration (UF) and microfiltration (MF) membranes with a configuration of tubular, hollow fiber, flat sheet or monolithic.…”

Section: Methodsmentioning

confidence: 99%

“…However, lowering HRT under certain values may cause some operational problems and may affect the system performance (Kim, Somiya, et al, 2002;Meabe et al, 2013;Wandera et al, 2018). Hafuka et al (2016) investigated the treatment of aerobic membrane bioreactor excess sludge in an AnMBR operated at 35 C and infinite SRT. It was reported that a decrease in HRT from 67 to 34 d (increasing OLR from 1.3 to 2.2 kg CODÁm À3 ) led to an increase in the biogas yield from 0.03 to 0.08 m 3 Ákg COD fed À1 .…”

Section: Factors Affecting Treatment Performancementioning

confidence: 99%

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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“…As described above, the orthophosphate concentration increases during anaerobic digestion of WAS, and its concentration is therefore high (~200 mg P/L) in the membrane permeate from the AnMBRs digesting WAS [15,16]. As orthophosphate is a favorable P species for its recovery, P recovery from the AnMBR permeate could be a promising approach for P recycling.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus Recovery by Adsorption from the Membrane Permeate of an Anaerobic Membrane Bioreactor Digesting Waste-Activated Sludge

Hafuka

Kimura

2022

Membranes

Self Cite

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The recovery of phosphorus (P) from waste activated sludge (WAS) is a promising approach for sustainable resource management. During the anaerobic digestion of WAS, orthophosphate is released, and this P species is favorable for adsorption recovery. In the present study, an anerobic membrane bioreactor (AnMBR) with a P-adsorption column was developed to generate biogas from WAS and to recover P from membrane permeate simultaneously. The effects of the hydraulic retention time (HRT) and solid retention time (SRT) of the AnMBR on P solubilization were investigated. As a result, the maximum P solubilization was 21% when the HRT and SRT were 45 days and 100 days, respectively. Orthophosphate in the membrane permeate was adsorbed and recovered using a mesoporous material called zirconium sulfate–surfactant micelle mesostructure (ZS) in the column. The adsorbed P could be desorbed from the ZS with a NaOH solution, and P was recovered as a concentrated solution by a factor of 25. When the HRT was 19 days, the biogas yield and biogas production rate were 0.26 L/g-VSinput and 0.123 L/L/d, respectively. The average methane content in the biogas was 80%. The developed membrane-based process may be effective for resource recovery from WAS.

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Performance of anaerobic membrane bioreactor during digestion and thickening of aerobic membrane bioreactor excess sludge

Cited by 19 publications

References 22 publications

An anaerobic membrane bioreactor – membrane distillation hybrid system for energy recovery and water reuse: Removal performance of organic carbon, nutrients, and trace organic contaminants

An anaerobic membrane bioreactor – membrane distillation hybrid system for energy recovery and water reuse: Removal performance of organic carbon, nutrients, and trace organic contaminants

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

Phosphorus Recovery by Adsorption from the Membrane Permeate of an Anaerobic Membrane Bioreactor Digesting Waste-Activated Sludge

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