Electroconductive moving bed membrane bioreactor (EcMB-MBR) for single-step decentralized wastewater treatment: Performance, mechanisms, and cost

Effects of solid retention time and exposure mode to electric current on Remazol Brilliant Violet removal in an electro-membrane bioreactor

“…In this cost estimate, energy demand (electricity) and anodic corrosion were taken into account, as expressed in Eq. 5 (Udomkittayachai et al 2021).…”

Mechanisms and Strategies of Advanced Oxidation Processes for Membrane Fouling Control in MBRs: Membrane-Foulant Removal versus Mixed-Liquor Improvement

“…98,116,214 Notably, for electrochemical antifouling AOPs (EO and electro-Fenton) in MBRs, electricity consumption constitutes the majority of the supplementary operating cost induced by energy and electrode utilization. 194 (2) Saved electricity consumption for coping with membrane fouling: Membrane fouling consistently contributes to heightened electricity consumption in MBRs, especially concerning water pumping and air supply. Therefore, the mitigation of membrane fouling by AOPs can lead to a significant reduction in the energy consumption associated with the operation and maintenance of MBRs.…”

“…It is worth noting that while satisfactory antifouling performance has been observed in eMBRs via MLI utilizing sacrificial electrodes, they are faced with the inevitable challenge of increased cost due to the continuous loss of electrode materials. In an eMBR provided by Udomkittayachai et al, the consumption and cost of sacrificial Fe anode for generating free Fe 3+ during wastewater treatment reached 0.035 kg/m 3 and 0.004 USD/m 3 , respectively . The adverse impact of releasing metal ions from sacrificial electrodes on microbial activity has also been observed during long-term operation …”

Nickel-hydroxide-encapsulated polyacrylamide as a novel adsorptive composite for the capture of methylene blue from wastewater

“…3,4 In this regard, the removal of these substances from wastewater before discharge to the environment is imperative from the point of view of water and environmental security. Various techniques have been applied for the uptake of methylene blue dye from liquid waste effluent, such as osmosis, 5 adsorption, [6][7][8] electrochemical precipitation, 9 ion exchange, 10 and flocculation. 11 An adsorption approach exhibits several advantages, including requiring less equipment, a simple flowsheet, and cost and energy efficiency, so, it has been applied dozens of times for the wastewater remediation processes.…”