摘要
模拟高氯污水成分体系,参照国标方法进行创新试验,研究分析了COD影响因素及准确度。试验结果表明:氯离子和钙离子含量严重影响测定结果;硫酸汞加入量与可掩蔽氯离子和钙离子的量呈一定的线性关系。建立了适合的分析方法,测得COD的标准偏差≤2.5%,加标回收率达98.9%~102.9%。
Innovative test which referred to the national standard method was carried out on simulated high chlorine waste water to study the influencing factors and accuracy of COD determination.The results showed that chloride ion content and calcium ion content seriously influenced the determination results,and there was a linear relationship between the amount of mercury sulfate and the amount of masked chloride ion and masked calcium ion.An appropriate analytical method is established with the standard deviation of COD less than 2.5%and the recovery of 98.9%-102.9%.
作者
韦景文
WEI Jingwen(Guangxi Tiandong County Jinsheng Chemical Co.,Ltd.,Tiandong 531500,China)
出处
《氯碱工业》
CAS
2021年第7期34-36,共3页
Chlor-Alkali Industry
关键词
分析测试
高氯污水
COD
影响因素
analysis and test
high chlorine sewage
COD
influencing factors
