Advances in anaerobic membrane bioreactor technology for municipal wastewater treatment: A 2020 updated review

Vinardell, Sergi; Astals, Sergi; Peces, Miriam; Cardete, M.A.; Fernández, I. González; Mata‐Alvarez, J.; Dosta, J.

doi:10.1016/j.rser.2020.109936

Cited by 108 publications

(39 citation statements)

References 221 publications

(384 reference statements)

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“…Although it is well-known that lower temperatures reduce the rate of biological reaction, there is increasing awareness that effective operation is possible using retained and acclimated biomass [5]. Lower temperature operation does, however, raise other issues such as the increased solubility of methane in the effluent stream; potentially lower removal efficiencies for Chemical Oxygen Demand (COD); and an increase in water viscosity that can reduce the membrane flux and change the settling characteristics of biological solids [3,[6][7][8][9]. The development of the anaerobic membrane bioreactor (AnMBR) has made it possible to produce high-quality effluents while operating at ambient temperatures and at a reasonably short hydraulic retention time (HRT).…”

Section: Introductionmentioning

confidence: 99%

Operation of Submerged Anaerobic Membrane Bioreactors at 20 °C: Effect of Solids Retention Time on Flux, Mixed Liquor Characteristics and Performance

2021

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Four flat-sheet submerged anaerobic membrane bioreactors ran for 242 days on a simulated domestic wastewater with low Chemical Oxygen Demand (COD) and high suspended solids. Organic loading was maintained around 1.0 g COD L−1 day−1, while solids retention time (SRT) was varied from 20–90 days. This was achieved at a constant membrane flux, maintained by adjusting transmembrane pressure (TMP) in the range 1.8-9.8 kPa. Membrane fouling was assessed based on the required TMP, with mixed liquors characterised using capillary suction time, frozen image centrifugation and quantification of extracellular polymeric substances (EPS). SRT had a significant effect on these parameters: fouling was least at an SRT of 30 days and highest at 60 days, with some reduction as this extended to 90 days. Operation at SRT <30 days showed no further benefits. Although operation at a short SRT was optimal for membrane performance it led to lower specific methane productivity, higher biomass yields and higher effluent COD. Short SRT may also have accelerated the loss of essential trace elements, leading to reduced performance under these conditions. A COD-based mass balance was conducted, including both biomass and methane dissolved in the effluent.

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Section: Introductionmentioning

confidence: 99%

Operation of Submerged Anaerobic Membrane Bioreactors at 20 °C: Effect of Solids Retention Time on Flux, Mixed Liquor Characteristics and Performance

2021

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“…[1][2][3][4][5] However, membrane fouling in the AnMBR has already been a considerable setback in real engineering application. 6 The main factors causing membrane fouling are organic pollutants, inorganic pollutants and microbial pollutants, which originate mainly from the active sludge. 7,8 Furthermore, extracellular polymeric substances (EPS) and soluble microbial products (SMP) 9 produced by microorganisms were the main reason for membrane fouling.…”

Section: Introductionmentioning

confidence: 99%

Effect of applied voltage on membrane fouling in the amplifying anaerobic electrochemical membrane bioreactor for long-term operation

Cao

Zhang

2021

RSC Adv.

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“…13 An MBR membrane can intercept sludge and keep the sludge concentration in the reactor at a high level. [13][14][15] The unique advantages of MBRs make them suitable candidates to be combined with P/NA technology to intercept anammox sludge. 15 The mathematical model of activated sludge can be used to assess the wastewater treatment process and predict the effects of dynamic system changes on the wastewater treatment system.…”

Section: Introductionmentioning

confidence: 99%

“…15 The mathematical model of activated sludge can be used to assess the wastewater treatment process and predict the effects of dynamic system changes on the wastewater treatment system. 15 In 1982, Activated Sludge Model No. 1 (ASM1) was developed, and it has been the core of many models until now.…”

Section: Introductionmentioning

confidence: 99%

Process research of one‐stage partial nitrification‐anammox (S‐PN/A) technology in toilet water treatment and related kinetic simulation

Liu

Shi

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Toilet water is a typical wastewater that is abundant and has a low organic carbon-to-nitrogen ratio; therefore, it is necessary to explore an economical and efficient treatment option. Partial nitrification-anammox (PN/A) technology is characterized by low aeration energy consumption and a high nitrogen removal rate. As a process technology that has emerged in recent years, PN/A technology involves operating conditions that require further study.RESULTS: In this work, two one-stage partial nitrification-anammox (S-PN/A) reactors were operated to achieve nitrogen removal from toilet water. The total nitrogen removal rate of the two reactors reached 85%. The hydraulic nitrogen load of the first reactor was only 0.03 kg N m -3 •d -1 , while the hydraulic nitrogen load of the second reactor reached 0.09 kg N m -3 •d -1 . Nitrosomonas and Candidatus Kuenenia in the reactor were the main functional bacteria for partial nitrification and anammox. Kinetic simulations were performed using AQUASIM 2.0 software. The results showed that, in the partial nitrification system, the higher the (sludge retention time) SRT , the lower the effluent ammonia nitrogen concentration; the optimal operating condition's sludge retention time (SRT) was 10 days and dissolved oxygen (DO) was 0.2 mg L -1 . The higher the SRT in the anammox system, the lower the concentration of ammonia and nitrite nitrogen in the effluent; in addition, the SRT should be greater than 60 days to ensure that as much nitrogen was removed as possible.CONCLUSION: In summary, the research results confirm that it is feasible to use PN/A technology to remove nitrogen from toilet water.

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Advances in anaerobic membrane bioreactor technology for municipal wastewater treatment: A 2020 updated review

Cited by 108 publications

References 221 publications

Operation of Submerged Anaerobic Membrane Bioreactors at 20 °C: Effect of Solids Retention Time on Flux, Mixed Liquor Characteristics and Performance

Operation of Submerged Anaerobic Membrane Bioreactors at 20 °C: Effect of Solids Retention Time on Flux, Mixed Liquor Characteristics and Performance

Effect of applied voltage on membrane fouling in the amplifying anaerobic electrochemical membrane bioreactor for long-term operation

Process research of one‐stage partial nitrification‐anammox (S‐PN/A) technology in toilet water treatment and related kinetic simulation

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