芬顿高级氧化法处理电石法PVC聚合釜洗釜废水的试验研究及工程应用  

Experimental study and engineering application of Fenton advanced oxidation method for treating calcium carbide process PVC polymerization kettle washing wastewater

作　　者：刘政 贾金钢 许海滨 LIU Zheng;JIA Jin’gang;XU Haibin(Beijing MZY Environmental Engineering Co.,Ltd.,Beijing 100020,China;Inner Mongolia Ordos Power Metallurgy Group Co.,Ltd.Chlor-Alkali Chemical Branch PVC Company,Ordos 016100,China;Haohua Yuhang Chemical Co.,Ltd.,Jiaozuo 454000,China)

机构地区：[1]北京铭泽源环境工程有限公司,北京100020 [2]内蒙古鄂尔多斯电力冶金集团股份有限公司氯碱化工分公司PVC公司,内蒙古鄂尔多斯016100 [3]昊华宇航化工有限公司,河南焦作454000

出　　处：《聚氯乙烯》2024年第1期37-41,共5页Polyvinyl Chloride

摘　　要：采用芬顿高级氧化法对电石法PVC聚合釜洗釜废水进行了小试试验。结果表明:在pH值为3.5,反应时间为60 min,H 2 O 2∶COD(质量比)=1∶1,H 2 O 2∶Fe 2+(摩尔比)=3∶1的试验条件下,并兼顾COD去除率及运行成本的情况下,处理后的废水生物毒性得到大幅度降低,可生化性得到显著提升。后续采用以生化为主并引入其他保障处理工艺,最终出水COD可稳定在30 mg/L以下,各项指标满足厂内循环水冷却水回用要求。A small scale experiment was conducted on treating washing wastewater of calcium carbide process PVC polymerization kettle by using Fenton advanced oxidation method.The results showed that under the experimental conditions of pH 3.5,reaction time of 60 minutes,mass ratio of H 2O 2 to COD of 1∶1,and molar ratio of H 2O 2 to Fe 2+of 3∶1,while considering COD removal rate and operating cost,the biological toxicity of the treated wastewater was significantly reduced,and the biodegradability was significantly improved.Afterwards,biochemical treatment was adopted as the main method and other guarantee treatment processes were introduced.The final effluent COD could be stabilized below 30 mg/L,and all indicators met the requirements for reuse of circulating water and cooling water in the plant.

关 键 词：芬顿氧化法 PVC聚合釜 废水 可生化性 生物毒性 回收利用 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]