Fe_xO_y@GAC活化过硫酸盐处理络合铜废水的研究

发布时间：2018-03-03 15:06

本文选题：络合铜　切入点：Fe_xO_y@GAC　出处：《中国给水排水》2017年09期 　论文类型：期刊论文

【摘要】：络合铜废水因来源广、处理难,一直是工业废水处理难点之一。以Fe_xO_y@GAC非均相活化过硫酸盐(PS)产生硫酸根自由基处理络合铜废水,重点考察了反应体系中初始p H值、催化剂投加量、过硫酸盐初始浓度、反应时间以及络合铜初始浓度等因素对总铜去除效果的影响,并对其破络机制进行初探。结果表明,对于低浓度EDTA-Cu废水(Cu~(2+)浓度为13.6 mg/L),在初始p H值=3.0、ρ(Fe_xO_y@GAC)=0.4 g/L、n(PS)=2.0 mmol/L、t=45 min、沉淀p H值=9.0的最佳条件下,对总铜的去除率可达到最高值98.6%,出水总铜浓度为0.18 mg/L,可达到污水综合排放的一级标准。
[Abstract]:Complex copper wastewater has always been one of the difficulties in industrial wastewater treatment because of its wide source and difficult treatment. The initial pH value in the reaction system was investigated by using Fe_xO_y@GAC heterogeneous activated persulfate to produce sulphate radical to treat copper complex wastewater. The effects of catalyst dosage, initial concentration of persulfate, reaction time and initial concentration of complex copper on the removal efficiency of total copper were investigated. For low concentration EDTA-Cu wastewater with a concentration of 13.6 mg / L ~ (2), under the optimum conditions of initial pH value of 3.0, 蟻 ~ (Fex) O _ (+) G ~ (+) C ~ (+) C ~ (2 +) and pH value 9.0, the removal rate of total copper can reach the highest value of 98.6, and the total copper concentration of effluent is 0.18 mg / L, which can reach the first class standard of comprehensive discharge of sewage, which can reach the best condition of 2.0 mmol / L ~ (-1) L ~ (-1) / L ~ (-1) ~ (-1) ~ (-1) 路L ~ (-1) ~ (-1) 路L ~ (-1) ~ (-1) ~ (-1).
【作者单位】： %E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8;" target="_blank">安徽工程大学生物与化学工程学院;重庆三峡环保<集团>有限公司;
【基金】：安徽省自然科学基金资助项目(1608085ME118) 安徽省高校优秀青年人才重点项目(gxyqZD2016120)
【分类号】：X781.1

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