Coupling anaerobic fluidized membrane bioreactors with microbial electrolysis cells towards improved wastewater reuse and energy recovery

Kik, Olga El; Issa, Lea; Katuri, Krishna P.; Saikaly, Pascal E.; Alameddine, Ibrahim; El‐Fadel, Mutasem

doi:10.1016/j.jece.2021.105974

Cited by 12 publications

(2 citation statements)

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“…The bioenergy recovery efficiency calculated by empirical equations was 69.4%. AnMBRs are widely used for wastewater treatment, but their membrane fouling and loss of dissolved methane increase operating costs, so EI Kik Olga et al 108 combined AnMBRs with microbial electrolytic cells (MECs). The effectiveness of the coupled AnFMBR‐MEC system was tested by monitoring the metrics of the wastewater treatment process.…”

Section: Types Of Pressure Energymentioning

confidence: 99%

A review of the energy recovery and energy pressure of liquid

Zhang

Xue

et al. 2023

Energy Science & Engineering

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Due to the rapid development of today's industry, it not only greatly accelerates the consumption of energy, but also causes serious pollution to the environment. Therefore, reducing energy waste and recovering energy has become an important research direction today. This paper introduces the future development trend of renewable energy, discusses the progress of recovery of nonpolluting energy such as marine, bioenergy and thermal energy, and analyzes the efficiency and social benefits of various types of energy recovery. Energy recovery methods for natural gas pipelines are briefly analyzed, and current research advances in energy pressure recovery devices are provided, leading to a summary of methods to improve the efficiency of fluid energy recovery. Finally, it is concluded that although the current energy sources are diversified, the most valued energy sources at present and in the future should be solar energy and ocean, which are infinitely recyclable. This paper will benefit researchers to further understand and study the various aspects of energy recovery.

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Section: Types Of Pressure Energymentioning

confidence: 99%

A review of the energy recovery and energy pressure of liquid

Zhang

Xue

et al. 2023

Energy Science & Engineering

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“…To address this, MEC and AD are integrated with membrane filtration processes to generate permeate suitable for reuse. The integrated biotechnologies are referred to as anaerobic electrochemical membrane bioreactor (AnEMBR) for the case of MEC (Katuri et al 2014(Katuri et al , 2016Werner et al 2016;Sapireddy et al 2019;El Kik et al 2021) and anaerobic membrane bioreactor (AnMBR) for the case of AD (Wei et al 2014;Harb et al 2015;Shoener et al 2016;Cheng et al 2019). AnEMBR and AnMBR have been demonstrated successfully at the lab-scale for achieving energy-efficient treatment of domestic wastewater while simultaneously generating good quality water suitable for agriculture reuse (Katuri et al 2016;Werner et al 2016;Cheng & Hong 2017;Harb & Hong 2017;Sapireddy et al 2019;Zaouri et al 2021).…”

Section: Integrating the Production Of Reusable Water With Energy Rec...mentioning

confidence: 99%

Adopting the circular model: opportunities and challenges of transforming wastewater treatment plants into resource recovery factories in Saudi Arabia

Ali

Hong

Mishra

et al. 2022

Journal of Water Reuse and Desalination

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With the ever-growing population, water, energy, and resources need to be used carefully, reused, and renewed. There is an increasing global interest in resource recovery from ‘waste’, which is driven by sustainability and environmental concerns and motivated by the potential for economic benefits. A new era in waste (water) management is being realized where wastewater treatment is becoming part of the circular economy by integrating the production of reusable water with energy and resource recovery. In this new perspective, wastewater is no longer seen as a waste to be treated with energy expenditure but rather as a valuable resource of freshwater, energy, nutrients (nitrogen and phosphorous), and materials (e.g., bioplastics, cellulose fibres, and alginate). In this review paper, the conversion of wastewater treatment plants (WWTPs) into resource recovery factories (RRFs) is presented as one of the ways forward to achieve a circular economy in the water sector for the Kingdom of Saudi Arabia (KSA). The advanced technologies, some highlighted in the article, can be installed, integrated, or retrofitted into existing WWTPs to create RRFs enabling the recovery of freshwater, cellulose, alginate-like exopolymers (bio-ALE), and biogas from municipal wastewater achieving climate neutrality, decarbonization, and production of new and promising resources. The article highlights the need for modular, adaptive, and/or decentralized approaches using sustainable technologies such as aerobic granular sludge (AGS)-gravity-driven membrane (AGS-GDM), anaerobic electrochemical membrane bioreactor (AnEMBR), and anaerobic membrane bioreactor (AnMBR) for conducive localized water reuse. The increase in reuse will reduce the pressure on non-renewable water resources and decrease dependency on the energy-intensive desalination process. This article also outlines the water challenges that are arising in KSA and what are the major water research programmes/themes undertaken to address these major challenges.

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