Membrane Aerated Biofilm Reactors

Syron, Eoin; Casey, Eoin

doi:10.1002/9781118522318.emst112

Cited by 6 publications

(1 citation statement)

References 67 publications

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“…reported 90% removal of total N from modified domestic wastewater up to 150 days using an MABR . COD and N removal rates obtained from published MABR trials are consistently higher than any other wastewater treatment technologies processes in current use, such as MBBRs . Figure shows schematically the diffusive and advective fluxes of oxygen and soluble wastewater constituents in an MABR.…”

Section: Membrane Biofilm Reactorsmentioning

confidence: 99%

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

Chaali

Naghdi

Brar

et al. 2018

J of Chemical Tech & Biotech

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Growing demand for efficient wastewater treatment systems is spurring on the development of new technologies. Biofilm‐based reactors can be used for the treatment of a variety of wastewaters and these reactors are resistant to toxic environments. Bioreactors, such as sequencing batch biofilm and moving bed biofilm are advanced techniques to treat various types of wastewaters with diverse operating conditions. Ammonium oxidizing bacteria, nitrite oxidizing bacteria and Anammox (anaerobic ammonium oxidation) bacteria are reported to be responsible for nutrient removal. In recent decades, the performance of these systems has been studied widely and compared for a number of wastewater treatment applications. In general, they are particularly suitable for high‐rate nitrification and nitrogen removal. The efficiency of these reactors has been confirmed in the laboratory and large‐scale plants. Their efficiency depends on the surface area of the biocarrier, the filling percentage volume of biofilm carriers, organic loading and diffused aeration supply. Chemical oxygen demand removal of 50–98% was reported for <12 h hydraulic retention time, 0.2 to 6.5 mg L−1 dissolved oxygen concentration and temperature range 15–35 °C. Also, the ratio of nitrate to ammonium conversion was from 0.2 to 90 and N2 conversion was from 0 to 8.5 mg. This review studied each of these bioreactors in the removal of nutrients (nitrogen, phosphorus and oxygen) from different wastewaters and compared them to conventional treatment. The review also includes the relevant studies on laboratory and pilot‐scale bioreactors to enhance their performance and reduce their costs. © 2018 Society of Chemical Industry

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Section: Membrane Biofilm Reactorsmentioning

confidence: 99%

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

Chaali

Naghdi

Brar

et al. 2018

J of Chemical Tech & Biotech

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Monitoring biofilm thickness using the membrane aerated biofilm reactor (MABR) fingerprint soft sensor to optimize nitrogen removal

Cao,

Cui,

Daigger

2023

Water Environment Research

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The ongoing commercialization and installation of full‐scale membrane aerated biofilm reactors (MABRs) stimulate the increasing need to monitor biofilm development. Biofilm thickness in MABRs can be assessed indirectly by plotting the exhaust oxygen purity versus bulk ammonia concentration, defined here as the MABR fingerprint soft sensor. Dynamic simulations with diurnal flow variations of an MABR unit model were implemented over a broad range of biofilm thicknesses and influent conditions consisting of variable C/N ratios and applied ammonia fluxes to assess the utility of the MABR fingerprint. Results show that the continuously decreasing trend of the MABR fingerprint plot slopes can be employed as a useful signal for biofilm thickness control in nitrogen removal processes. This technique is useful in a wide range of influent conditions and is helpful for MABR operators and designers to arrange biofilm thickness control events efficiently and determine where in an overall treatment process the technique can be applied to control biofilm thickness and optimize process performance.Practitioner points The linear relationship between exhaust oxygen purity and bulk ammonia concentration is defined as the MABR fingerprint plot. MABR fingerprint plots are generated for a given biofilm thickness with diurnal flow or short‐term loading variations implemented. Continuously decreasing trends of the MABR fingerprint plot slopes are useful signals for biofilm control in nitrogen removal. The MABR fingerprint is useful over a wide range of influent conditions regarding C/N ratios and applied ammonia fluxes. MABR practitioners can use the fingerprint plots to determine when biofilm control measures should be taken.

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Effects of scouring on membrane aerated biofilm reactor performance and microbial community composition

Bunse

Orschler

Pidde

et al. 2023

Bioresource Technology

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Membrane Aerated Biofilm Reactors

Cited by 6 publications

References 67 publications

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

A review on the advances in nitrifying biofilm reactors and their removal rates in wastewater treatment

Monitoring biofilm thickness using the membrane aerated biofilm reactor (MABR) fingerprint soft sensor to optimize nitrogen removal

Effects of scouring on membrane aerated biofilm reactor performance and microbial community composition

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