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Special Issue of Water Reuse


Anaerobic Bioreactors for Efficient Wastewater Treatment and Resource Recovery


Maintaining a sufficient supply of fresh water and energy with the world's increasing population is becoming one of the grand challenges to humans this century. To recycle water, activated sludge processes have been commonly used as a conventional wastewater treatment technique. However, this technique is associated with a large footprint and consumes relatively high energy for wastewater aeration. Another mature wastewater treatment technology, aerobic membrane bioreactors (MBRs), has become popular in recent years, which could be attributed to their significantly smaller footprints and excellent treated water quality for reuse. Nevertheless, considerable energy is still needed by the MBRs for the purposes of aeration as well as scouring to minimize membrane surface fouling. To further reduce the energy consumption for aeration, anaerobic bioreactors have been developed in recent years with improved wastewater treatment performance.    


There are several types of anaerobic bioreactor systems under investigation and development. One important category is anaerobic membrane bioreactor (AnMBR). Domestic wastewater is treated under anaerobic conditions and generates methane that could be used as an energy source. This makes AnMBR an attractive alternative for sewage treatment due to the significantly low energy input for maintaining the process. The other options for anaerobic bioreactor systems for wastewater treatment could be anaerobic electrochemical membrane bioreactors (AnEMBR) for hydrogen and methane production, anaerobic digestion, upflow anaerobic sludge blanket (UASB), etc.


Considering the successful demonstration of anaerobic bioreactor systems for wastewater treatment and resource recovery at lab scale and the global call to reduce carbon emissions, it is becoming more and more appealing to have a special issue to highlight the outstanding research concerning all aspects in the realm of anaerobic bioreactor systems for wastewater treatment and resource recovery, focusing on state-of-the-art progresses, developments, new trends and economic analysis. Potential topics include but are not limited to the following:


l   Anaerobic membrane bioreactors for wastewater treatment from specific industries

l   Novel materials, configuration and processes for anaerobic electrochemical membrane bioreactors

l   Demonstration of pilot or large scale AnMBR systems

l   Upgrading of biogas generated from anaerobic bioreactor systems

l   Policy analysis of the reuse of treated water and biogas from anaerobic bioreactor systems

l   Techno-economic and market analysis of other anaerobic bioreactor systems

l   Safety monitoring and evaluation of the treated water from anaerobic bioreactor systems

l   Quality analysis of the treated water from anaerobic bioreactor systems during Covid-19

l   Mechanism studies on anaerobic microbes for the degradation of organic matters

l   Resource recovery from wastewater using anaerobic bioreactor systems



Guest editors:

  1. Dr. Woei Jye Lau, Universiti Teknologi Malaysia, Malaysia. Email:
  2. Dr. Hamidi Abdul Aziz, Universiti Sains Malaysia, Malaysia. Email:
  3. Dr. Zawawi Daud, Universiti Tun Hussein Onn Malaysia, Malaysia. Email:


Key dates:

Deadline for manuscript submission: 30th October 2021

Expected publication date: Early 2022

Information for submission:

Please make sure that your paper follows the Instructions to Authors, before submitting your paper directly to Water Reuse peer review system:

Please choose the Special Issue Article Type and the “Special Issue: Anaerobic Bioreactors” Section/Category.

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