Optimized coupling of a submerged membrane electro-bioreactor with pre-anaerobic reactors containing anode electrodes for wastewater treatment and fouling reduction

Journal of Water Reuse and Desalination

Jaafarzadeh, Neemat¹  Taghipour, Nader²  Dehghanzadeh, Reza³  Shakerkhatibi, Mohammad³  HosseinNia, Hassan⁴  Mosaferi, Mohammad⁵ 

[1] Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;Department of Environmental Health Engineering, School of Health, Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran;Department of Environmental Health Engineering, School of Health, Tabriz University of Medical Sciences, Tabriz, Iran;Department of Precision and Microsystems Engineering (PME), Delft University of Technology, Delft, The Netherlands;Tabriz Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

关键词: membrane fouling;    pre-anaerobic reactor;    submerged membrane electro-bioreactor;    wastewater treatment;   

DOI  :  10.2166/wrd.2016.063

学科分类：工程和技术（综合）

来源: IWA Publishing

【 摘 要 】

In this paper, the performance of a submerged membrane electro-bioreactor with pre-anaerobic reactors containing anode electrodes (SMEBR+) was compared with that of a membrane bioreactor (MBR) in municipal wastewater treatment. The new design idea of the SMEBR+ was based on applications of direct current (DC) on the anode and cathode electrodes. The pilot study was divided into 2 stages and operated for 48 days. In Stage I, the MBR was continuously operated for 24 days without the application of electrodes. In Stage II, the SMEBR+ was continuously operated for 24 days, while aluminum electrodes and an intermittent DC were working with an operational mode of 2 min ON/4 min OFF at a constant voltage of 1.4 V. The results indicated that membrane fouling was reduced by nearly 22.02% in the SMEBR+ compared to the MBR. The results also showed that the SMEBR+ increased the quality of effluent to the extent that high removals of NH3+-N, PO43−-P, and chemical oxygen demand (COD) were 98%, 76%, and 90%, respectively. This system, in comparison with those proposed in other studies, showed a suitable improvement in biological treatments, considering the high removal of NH3+-N. Therefore, SMEBR+ can be considered as a promising treatment alternative to the conventional MBR.

【 授权许可】

CC BY-NC-ND