ZHAO Yingli1 , XIE Hongyong1 , CHEN Weidong2
(1. School of Environmental & Material Engineering, Shanghai Polytechnic University, Shanghai 201209, China; 2. Huace Product Standard Testing Technology Co., Ltd., Shanghai 201209, China)
Abstract:Sodium sulfide was used in the precipitation treatment of nickel wastewater. The effects of chemicals dosage, reaction time and p H value on the removal rate of the nickel ions in the wastewater were investigated. The results show that the excess ratio of Na2S is 1.1, with stiring 30 min at a rate of about30 r/min, the removal rate of nickel is 95.2%, XRD analysis showes a dense nickel hydroxide precipitate. The hydrogen sulfide produced during the process can be used to treat the wastewater.
Keywords: sodium sulfide; nickel wastewater; nickel precipitation
文章编号:1008-5548(2017)04-0094-04
DOI:10.13732/j.issn.1008-5548.2017.04.019
收稿日期:2016-08-02,修回日期:2017-05-31,在线出版时间:2017-08-25。
基金项目:上海第二工业大学研究生项目,编号 :A01GY16F030。
第一作者简介:赵盈利(1991—),女,硕士研究生,研究方向为环境检测。E-mail:20145610012@sspu.edu.cn。
通信作者简介:谢洪勇(1961—),男,博士,教授,硕士生导师,研究方向为水污染控制。E-mail:hyxie@sspu.edo.cn。