首页|某铅锌冶炼厂废水COD氧化降解实验研究

某铅锌冶炼厂废水COD氧化降解实验研究

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

lead and zinc smelting wastewaterCODoxidation degradationcatalyticadvanced oxidation

曾平生、王天宁、陈国强

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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

矿冶科技集团有限公司,北京 100160

铅锌冶炼废水 COD 氧化降解 催化 高级氧化

矿冶科技集团科研基金项目资助

02-2264

2024

中国矿业
中国矿业联合会

中国矿业

CSTPCD北大核心
影响因子:0.875
ISSN:1004-4051
年,卷(期):2024.33(z2)