净水技术2011，Vol.30Issue(2)：58-61,4.
军港海水冲厕污水化学耗氧量(COD)指标的分析方法
Analytical Method of Chemical Oxygen Demand(COD) for Toilet-Flushing Sewage with Seawater at Naval Ports
邹士洋 1张建平 1伍俊荣 1丁冰泉 1黄富民1
作者信息
摘要
Abstract
A method was developed to eliminate chlorine interference in the analysis of chemical oxygen demand (COD) in the toiletflushing sewage with seawater at naval seaports. The analysized procedures were as follows: initial microwave digesting for 30 min, full oxidization of chlorine ions with dichromate and disulphuric acid, addition of 0.1 g silver sulphate into the cooled solution as catalyst,and microwave digesting for another 30 min. In the process, most organic matters are fully oxidized, and then total apparent COD is measured. The COD value of the measured sample is obtained by subtracting the apparent COD of the chloride value from the total apparent COD. Results demonstrate that relative deviation is equal to or less than 10 ％ in the standardized solution containing Cl-≤20 000 mg/L and CODc=100 mg/L, and RSD％≤5％ in the analysis of COD in the toilet-flushing sewage with seawater at naval Ports.关键词
化学耗氧量(COD)/海水冲厕污水/微波消解分类
建筑与水利引用本文复制引用
邹士洋,张建平,伍俊荣,丁冰泉,黄富民..军港海水冲厕污水化学耗氧量(COD)指标的分析方法[J].净水技术,2011,30(2):58-61,4.
