高浓度硫脲废水的臭氧催化氧化法处理研究  

Study on Ozone Catalytic Oxidation Treatment of High Concentration Thiourea Wastewater

作　　者：肖德龙 杨红梅 黄莉 范星 阮期平[1] Xiao Delong;Yang Hongmei;Huang Li;Fan Xing;Ruan Qiping(l.Mianyang Teachers' College,Sichuan,621000;Sichuan Entech Environment Technology CO.,LTD.,Sichuan,621000)

机构地区：[1]绵阳师范学院,四川621000 [2]四川恒泰环境技术有限责任公司,四川621000

出　　处：《当代化工研究》2019年第9期81-83,共3页Modern Chemical Research

基　　金：绵阳市科创区项目——光伏废水零排放，项目计划编号：2018122001

摘　　要：针对铜铟镓硒薄膜太阳能电池的高浓度硫脲废水(硫脲2500mg/L,COD为3000mg/L,pH=10),采用臭氧催化氧化法对其进行处理,结果表明臭氧+催化剂+双氧水的催化氧化法效果最佳,在臭氧投加浓度500mg/L条件下,最佳的催化剂投加量为200mg/L,双氧水(30%)投加量为4g/L,反应时间为8小时,COD去除率80%左右.在反应时间8小时,COD去除率大于70%情况下,臭氧与硫脲的最佳比值为1.67.8小时后,COD去除率增加缓慢,后续可采用生化法进一步处理.For copper indium gallium selenide thin film solar cells of high concentrated-wastewater of thiourea(thiourea is 2500 mg/L,COD is 3000mg/L,pH=10),by using the method of ozone catalytic oxidation process,the results show that the effect of catalytic oxidation method of ozone+catafyst+hydrogen is best,in the ozone dosing concentration under the condition of500mg/L,the best catalyst dosing quantity is 200 mg/L,hydrogen peroxide(30%)of the dosing quantity of 4g/L,the reaction time is 8 hours,COD removal rate is about 80%.The optimal ratio of ozone to thiourea was 1.67"when the COD removal rate was greater than 70%.After 8 hours,COD removal rate increased slowly,and biochemical method could be adopted for fiirther treatment.

关 键 词：太阳能薄膜 硫脲废水 臭氧氧化 双氧水 催化剂 

分 类 号：X522[环境科学与工程—环境工程]