首页 | 本学科首页   官方微博 | 高级检索  
     

Fenton氧化-混凝沉淀处理电镀废水中重金属镍的研究
引用本文:蔡文良,谢艳云. Fenton氧化-混凝沉淀处理电镀废水中重金属镍的研究[J]. 矿冶工程, 2020, 40(4): 106-109. DOI: 10.3969/j.issn.0253-6099.2020.04.027
作者姓名:蔡文良  谢艳云
作者单位:重庆水利电力职业技术学院,重庆 402160
基金项目:重庆市教委科学技术研究项目;重庆水利电力职业技术学院人才引进基金项目;重庆市教委科学技术项目
摘    要:以某电镀厂含镍废水为处理对象,探究Fenton氧化-混凝沉淀工艺对重金属镍的去除效果。结果表明,Fenton氧化的最佳条件为:H2O2投加量2 mmoL/L、FeSO4/H2O2摩尔比0.6、初始pH值5、反应时间80 min;混凝沉淀的最佳条件为:pH值9、PAC用量12 mg/L、混凝时间12 min、助凝剂用量6 mg/L、沉降时间60 min;在此最佳条件下,Fenton氧化-混凝沉淀工艺处理含镍电镀废水,镍去除率可达99.8%,出水总镍含量低至0.029 mg/L,处理后的出水水质满足《电镀污染物排放标准》(GB21900—2008)表Ⅲ要求。

关 键 词:废水处理  电镀废水    Fenton氧化  混凝沉淀  助凝剂
收稿时间:2020-02-28

Treatment of Heavy Metal Nickel in Electroplating Wastewater with Fenton Oxidation and Coagulation Precipitation
CAI Wen-liang,XIE Yan-yun. Treatment of Heavy Metal Nickel in Electroplating Wastewater with Fenton Oxidation and Coagulation Precipitation[J]. Mining and Metallurgical Engineering, 2020, 40(4): 106-109. DOI: 10.3969/j.issn.0253-6099.2020.04.027
Authors:CAI Wen-liang  XIE Yan-yun
Affiliation:Chongqing Water Resources and Electric Engineering College, Chongqing 402160, China
Abstract:The nickel-containing wastewater of an electroplating plant was treated in an experiment by adopting Fenton oxidation and coagulation precipitation process, for studying the removal effect of heavy metal nickel. The results show that under the following optimum conditions, the Fenton oxidation with H2O2 dosage of 2 mmoL/L, FeSO4/H2O2 molar ratio of 0.6, an initial pH of 5, the reaction time of 80 min, followed by the coagulation and precipitation process with pH of 9, PAC dosage of 12 mg/L, reaction time of 12 min, coagulant dosage of 6 mg/L and settling time of 60 min, can lead to the nickel removal rate up to 99.8% and the total nickel content in the effluent as low as 0.029 mg/L. It is shown that the quality of the effluent after the treatment has met the requirements stated in Table Ⅲ of Electroplating Pollutant Discharge Standard (GB21900-2008).
Keywords:wastewater treatment  electroplating wastewater  nickel  Fenton oxidation  coagulation precipitation  coagulant  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《矿冶工程》浏览原始摘要信息
点击此处可从《矿冶工程》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号