环境工程实验室废弃物处理与研究

Environmental Engineering Laboratory Wastes Treatment and Research

本文阐述了高校环境工程实验室排放废弃物的特点和危害,总结了常见实验室废液的处理方法,并列出了相关的反应方程式。利用Fenton试剂法,对本校实验室废液进行了实际处理,研究了各项因素对废液CODCr去除率的影响。研究结果表明,在pH值=3,n Fe2+:n H2O2=0.1,H2O2(30%)的加入量为12.5 ml.L-1,反应时间为6 h的条件下,废液CODCr的去除率最高,达82.1%,CODCr值为309 mg.L-1。结果显示,Fenton试剂法可以应用于高校环境工程实验室废液的处理。

This article elaborated the characteristics and harm of waste from environmental engineering laboratory, sums up the method of the waste and lists the related reaction equation. Our laboratory＇s waste is treated by Fenton＇s reagent. The results show that under the opti- mal condition that the dosage of H2 02 （ 30% ） is 12.5 mL L - 1, the pH value is about 3, the mole ratio between Fe2＋ and H202 is O. 1, reac- tion time is 6 h, the removal rate of CODCr reaches 82.1%. The results showed that Fenton reagent method can be applied to environmental engineering laboratory waste liquid treatment.