| Literature DB >> 23981707 |
He Bai1, Yong Kang, Hongen Quan, Yang Han, Jiao Sun, Ying Feng.
Abstract
In order to treat copper-containing wastewater effectively using sulfate reducing bacteria (SRB), iron (Fe(0)) was added to enhance the activity of SRB. The SRB system and the SRB + Fe(0) system were operated under continuous operation. The sulfate reduction efficiency of the SRB + Fe(0) system was twice as much as that of the SRB system with the sulfate loading rate at 125 mg L(-1) h(-1). The effect of COD/SO4(2-) on sulfate reduction indicates an enhanced activity of SRB by adding Fe(0). 99% of total sulfate was deducted in both systems at pH 4.0-7.0, and temperature slightly influenced the removal of sulfate in the SRB + Fe(0) system. In the copper-containing wastewater treatment, the SRB + Fe(0) system shows a better performance since sulfate removal in this system was higher than the SRB system, and the removal ratio of Cu(2+) was held above 95% in SRB + Fe(0) system at all influent Cu(2+) concentrations. CrownEntities:
Keywords: Copper-containing wastewater; Heavy metal; Iron; Sulfate reducing bacteria
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Year: 2013 PMID： 23981707 DOI： 10.1016/j.jenvman.2013.06.050
Source DB: PubMed Journal: J Environ Manage ISSN： 0301-4797 Impact factor: 6.789