化学需氧量半微量烘箱测定方法的研究  

Measurement Method of COD in Semi Micro-heating Oven

作　　者：宋襄翎[1] 张欣[1] 李红 

机构地区：[1]沈阳理工大学化工学院 [2]辽宁省分析科学研究院,沈阳110015

出　　处：《环境科学与技术》2006年第5期34-35,共2页Environmental Science & Technology

摘　　要：介绍了污水和工业废水中化学需氧量(COD)的半微量烘箱测定方法。该法与经典回流法比较,具有节省水电、省时、省药品等特点。用Ag2SO4-MnSO4作催化剂,HgSO4用量少,减少了汞盐的二次污染。具有较好的精密度和准确度,适用于大批量的水样的测定,有良好的推广价值。The method of semi micro- heating oven to measure COD in wastewater and industrial wastewater was introduced, with characteristics of water, power, time and chemicals saving compared with traditional methods. Dosage of HgSO4 was small to reduce secondary pollution of mercury salt when Ag2SO4-MnSO4 used as catalyst. The method was fit for measuring large amount of water sample with precision and accuracy.

关 键 词：COD 半微量烘箱 Ag2SO4-MnSO4催化剂 

分 类 号：X830.2[环境科学与工程—环境工程]