Improvement of aqueous nitrate removal by using continuous electrocoagulation/electroflotation unit with vertical monopolar electrodes

被引：62
作者：
Majlesi, Monireh [1 ,2 ]
Mohseny, Seyed Mohsen [3 ]
Sardar, Mandieh [2 ]
Golmohammadi, Sohrab [4 ]
Sheikhmohammadi, Amir [5 ]
机构：
[1] Shahid Beheshti Univ Med Sci, Dept Environm & Occupat Hazards Control Res Ctr, Tehran 11369, Iran
[2] Shahid Beheshti Univ Med Sci, Dept Environm Hlth Engn, Tehran 11369, Iran
[3] Qom Univ Med Sci, Dept Environm Hlth Engn, Qom City 37491, Iran
[4] Kurdistan Rural Water & Wastewater Co, Dept Environm Engn, Kurdistan City 22541, Iran
[5] Shahid Beheshti Univ Med Sci, Students Res Comm, Dept Environm Hlth Engn, Tehran 11369, Iran
来源：
SUSTAINABLE ENVIRONMENT RESEARCH | 2016年 / 26卷 / 06期
关键词：
Electro-Coagulation-Flotation; Nitrate; Al anode/cathode;
D O I：
10.1016/j.serj.2016.09.002
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The present study is to investigate removal of nitrate from water solutions by the Electro-CoagulationFlotation (ECF) process in continuous operation under different conditions. Experimental results indicated that the maximum nitrate removal was achieved by aluminum-aluminum electrode arrangement as anode-cathode. The increase in current density from 0.4 to 3.2 mA cm(-2) increased nitrate removal efficiency from 55 to 96% under optimum conditions of time and pH during the ECF. Continuous operation of the ECF reactor led to an increase of nitrate removal from 37% at a detention time of 10 min-96% at a detention time of 30 min. Mean energy consumption and current efficiency were found to be about 2.66 kWh g(-1) NO3- and 160%, respectively. (C) 2016 Chinese Institute of Environmental Engineering, Taiwan.
引用
收藏
页码：287 / 290
页数：4
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