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RISEffect of direct electric current and field on biofouling in ED and RED
Electrodialysis -ED- and revers electrodialysis -RED- are electrochemical membrane processes with ion exchange membranes used to produce potable water and sustainable clean energy, respectively. The characteristic of these process is that the direct...
Effect of direct electric current on anti-biofouling properties in electrodialysis processes
The fouling was evaluated by the increase of transmembrane potential due to the increase of membrane electric resistance caused by biofouling. However, the voltage was not changed for 20h. Then, for further investigation, ...
Desalination of brackish groundwater in Zahedan city in Iran
Zahedan city lies in one of the most arid areas in southeastern Iran. As the capital of Sistan and Baluchestan province it has grown and urbanized rapidly with a population of over 600,000. All water consumption needs are ...
The effect of surface modification on biofouling of anion exchange membrane under reverse electrodialysis process
Biofouling is considered as one of the most severe problems for the practical application of the RED process. Surface modification using a negatively charged polyanion layer on AEMs is a promising approach to improve the ...
The effect of polydopamine coating on anti-biofouling properties in electrodialysis processes
Electrodialysis -ED- is an electrochemical membrane process applied to produce a drinking water from brackish water. However, a fouling is a serious problem of this process, in particular, a fouling of anion-exchange membranes -AEMs-. In this study...
電気透析及び逆電気透析プロセスにおけるバイオファウリング挙動
アニオン交換膜-AEM-及びカチオン交換膜-CEM-としては、それぞれアストム社製のNEOSEPTA AMXおよびNEOSEPTA CMXを用いた。また、モデルバクテリアとしてPseudomonas putida -P. putida-を用いた。EDでは0.05M NaCl濃度のバクテリア懸濁液-O.D.450: 0.5-を源液として2mA/cm2の定電流で実験を行った。REDでは0.5M NaCl濃度のバクテリア懸濁液-O.D.450: ...
Anti-biofouling enhancement of anion-exchange membrane by polydopamine coating in electrodialysis process
ED performance, it is needed to enhance the monovalent anion permselectivity and anti-fouling properties included anti-organic, anti-inorganic and anti-biofouling of anion-exchange membranes -AEMs-. In our previous study, ...
A hybrid fuzzy multi-criteria decision making approach for desalination process selection
technology for the treatment of brackish groundwater typical of an area located in north-east of Iran. The desalination technologies included in this study were reverse osmosis, electrodialysis, ion exchange, multistage flash distillation, multi...
Biofouling Phenomena on Anion Exchange Membranes under the Reverse Electrodialysis Process
Reverse electrodialysis (RED) is an electrochemical process for converting salinity gradient energy into electric energy. Biofouling of anion exchange membranes (AEMs) is a severe problem affecting RED performance. In this study, we examined...
Improved antifouling of anion-exchange membrane by polydopamine coating in electrodialysis process
The fouling, in particular the organic fouling of anion exchange membranes (AEMs), is a serious problem in electrodialysis (ED). In this paper, we attempted to improve the antifouling potential of AEM by surface modification with polydopamine (PDA...