摘要
本文对化学耗氧量标准测定方法进行了改进.改进后以硫酸锰作催化剂,在硫酸或硫磷混酸(5∶1)中,采用相同的氧化剂以及价廉的吸收剂排除干扰,可降低分析成本,对环境不造成二次污染,其回收率在98％以上,且与标准法无显著差异,适用于工业废水和生活污水中COD的监测.
A method for determination of chemical oxygen demand has been improved. The cost for analysing is reduced with no pollution for the environment,the reclamation rate is over 98% and no obviors difference in comparison with the using of standard method. With taking manganese sulfate as catalyst, the same oxidizer and cheap absorbent for expelling interferences in sulfuric acid or phosphoric acid (5:1), the method is applicable for the measurement of COD in industrial waste water and domestic sewage.
出处
《四川师范学院学报（自然科学版）》
1992年第3期211-215,共5页
Journal of Sichuan Teachers College(Natural Science)
关键词
化学耗氧量
废水
硫酸银
硫酸锰
chemical oxygen demand determination
chemical analysis
manganese sulfate
