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提高测定含油污水中COD准确度的探讨
引用本文:谢呈水,张建强.提高测定含油污水中COD准确度的探讨[J].油气田环境保护,2002,12(3):32-33.
作者姓名:谢呈水  张建强
作者单位:1. 胜利石油管理局井下作业公司
2. 垦利石化厂
摘    要:根据自身工作实践,介绍了测定水中COD应注意的几个主要问题,如水样pH的调整、溶解氧含量的调整及确定稀释倍数的方法。特别提出:对于含石油类较高的水样时,应先用重铬酸钾法测定CODCr ,再确定稀释倍数。

关 键 词:含油污水  COD测定  准确度

The Study on Improving Accuracy of Measurement of COD Content of Oily Waste Water
Xie Chengshui.The Study on Improving Accuracy of Measurement of COD Content of Oily Waste Water[J].Environmental Protection of Oil & Gas Fields,2002,12(3):32-33.
Authors:Xie Chengshui
Abstract:According to relevant working experience, some major issues during the measurement of COD content in water are described, like adjustment of PH in water sample, adjustment of content of dissolved oxygen and method of determination of multiple of dilution. It should be emphasized that for water sample of high petroleum content, CODCr should be measured by the method of potassium dichromate firstly, then determine multiple of dilution.
Keywords:oily waste water  measurement of CODCr  accuracy
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