热氧化法处理含镍电镀废水的工艺研究  

Study on treatment of electroplating wastewater containing nickel by thermal oxidation

作　　者：彭彬[1] 孙超[1] Peng Bin;Sun Chao(School of Chemical Engineering and Environment,Weifang College of Science and Technology,Shouguang 262700,China)

机构地区：[1]潍坊科技学院化工与环境学院,山东寿光262700

出　　处：《电镀与精饰》2023年第11期40-45,共6页Plating & Finishing

基　　金：山东省重点研发计划项目(2020CXGC011206);潍坊科技学院校级课题(2022KJ06)。

摘　　要：本文研究了过硫酸钠热氧化法+化学沉淀法处理含镍电镀废水的工艺,分析了反应温度、反应时间、过硫酸钠用量和氢氧化钠用量对镍离子浓度的影响,利用Design Expert 10.0设计软件对影响因素进行响应面法设计,拟合了实验模型方程,并对模型进行了分析计算,得出了最佳工艺:废水量为150 mL时,设置反应温度70℃,反应时间65min,过硫酸钠用量为0.79 g,30%的氢氧化钠溶液用量为0.5 mL,净化后废水中镍离子的浓度为0.0882 mg/L,达到排放标准。In this paper,the process of treating nickel-containing electroplating wastewater by sodium persulfate thermal oxidation-chemical precipitation method was studied,and the effects of reaction temperature,reaction time,dosage of sodium persulfate and sodium hydroxide on nickel ion concentration were analyzed.The response surface method was used to design and optimize the process conditions by Design Expert 10.0,and the experimental model equation was fitted.The model was analyzed and calculated,and the optimal process was obtained as follows:when the wastewater volume is 150 mL,the reaction temperature is 70℃,the reaction time is 65 min,the dosage of sodium persulfate is 0.79 g,the dosage of 30%sodium hydroxide solution is 0.5 mL,and the nickel ion concentration of the wastewater after treatment is 0.0882 mg/L,which meets the discharge standard of wastewater nickel containing.

关 键 词：含镍电镀废水 过硫酸钠 化学沉淀法 优化 

分 类 号：X703[环境科学与工程—环境工程]