某铅锌冶炼厂废水COD氧化降解实验研究  

Experimental study on COD oxidative degradation of wastewater from a lead and zinc smelter

作　　者：曾平生 王天宁 陈国强 ZENG Pingsheng;WANG Tianning;CHEN Guoqiang(Shaoguan Smelting Plant,Shenzhen Zhongjin Lingnan Nonfemet Co.,Ltd.,Shaoguan 512024,China;BGRIMM Technology Group Co.,Ltd.,Beijing 100160,China)

机构地区：[1]深圳市中金岭南有色金属股份有限公司韶关冶炼厂,广东韶关512024 [2]矿冶科技集团有限公司,北京100160

出　　处：《中国矿业》2024年第S02期422-426,共5页China Mining Magazine

基　　金：矿冶科技集团科研基金项目资助(编号:02-2264)。

摘　　要：随着铅锌冶炼技术持续进步,其产生的废水成分愈加复杂,尤其国家近年来加强对COD(化学需氧量)排放总量的管控,企业外排废水COD的提标深度处理急需高效、绿色处理技术。针对当前COD处理需求,本文采用新型催化高级氧化技术(KYCAOP)处理铅锌冶炼废水,重点对比了其与常用氧化去除技术(如芬顿氧化法和次氯酸钠氧化法)对废水中COD的处理效果,并探索了KYCAOP的最佳使用条件。结果表明,对同一批次冶炼废水(原水COD 151 mg/L),芬顿氧化法和次氯酸钠氧化法的COD去除率仅有47.2%和22.1%,而KYCAOP的去除率高达75%以上。此外,KYCAOP的反应速度快,反应20 min后出水COD浓度可稳定在40 mg/L以下,证明此技术具有深度处理铅锌冶炼废水中COD的应用潜力。With the rapid development of lead and zinc melting technology,the wastewater composition of this smelting industry is more complex,in which efficient and green treatment technology,particularly for COD(Chemical Oxygen Demand)discharge of enterprises in China,is urgently necessary.For the current demand of the lead and zinc smelting wastewater,a novel catalytic advanced oxidation technology(KYCAOP)is applied,where its treatment effect and best working condition are also compared with the Fenton oxidation and NaClO oxidation process in detail.The results show that for the same batch of smelting wastewater(raw water COD 151 mg/L),the removal rates of Fenton oxidation and NaClO oxidation are only 47.2%and 22.1%,while the KYCAOP is more than 75%.Besides,the oxidation rate of KYCAOP is efficient,and the COD concentration can be stabilized below 40 mg/L after 20 min of reaction,which also demonstrates the great potential of KYCAOP in lead and zinc smelting wastewater advanced treatment of COD.

关 键 词：铅锌冶炼废水 COD 氧化降解 催化 高级氧化 

分 类 号：TU459.2[建筑科学—岩土工程]