Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面


Transactions of Nonferrous Metals Society of China

Vol. 27    No. 11    November 2017

[PDF Download]        


Biological treatment of wastewater with high concentrations of zinc and sulfate ions from zinc pyrithione synthesis
Zhi-xiong PENG1,2, Hui-jun HE1,2, Chun-ping YANG1,2,3, Guang-ming ZENG1,2, Shan WEN1,2, Zhou YAN1,2, Hai-hong XIANG1,2, Yan CHENG1,2, Sheldon TARRE4, Michal GREEN4

1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; 2. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China; 3. Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; 4. Faculty of Civil and Environmental Engineering, Israel Institute of Technology, Haifa 32000, Israel

Abstract:An enriched and domesticated bacteria consortium of sulfate-reducing bacteria (SRB) was used to treat wastewater from zinc pyrithione (ZPT) production, and the effects of different reaction parameters on sulfate reduction and zinc precipitation were evaluated. The single-factor experimental results showed that the removal rates of Zn2+ and decreased with an increased ZPT concentration ranging from 3.0 to 5.0 mg/L. Zn2+ and in wastewater were effectively removed under the conditions of 30-35 °C, pH 7-8 and an inoculum concentration of 10%-25%. The presence of Fe0 in the SRB system enhanced Zn2+ and removal and may increase the resistance of SRB to the toxicity of Zn2+ and ZPT in wastewater. A Box-Behnken design was used to evaluate the influence of the main operating parameters on the removal rate of . The optimum parameter values were found to be pH 7.45, 33.61 °C and ZPT concentration of 0.62 mg/L, and the removal rate of reached a maximum of 91.62% under these optimum conditions.


Key words: biological treatment; sulfate reduction; sulfate-reducing bacteria; wastewater; zinc pyrithione; zinc

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱