【摘要】 化学需氧量(CODcr)和石油类都是中国实施水污染物排放总量控制指标,也是环境监测的常测项目。CODcr是反映水体中受还原性物质主要是有机物污染程度的综合性指标。矿物油和动、植物油统称为油类,是废水中常见的有机污染物,对CODcr的贡献较大。探索水体中CODcr值与油类物质含量之间的相关性,对CODcr值准确性的判断有一定指导意义。改进含油废水的取样方法,有利于提高CODcr测定值的准确性和代表性。更多还原

【Abstract】 CODcr and petroleum oil are not only the controlling index of total emission of water pollution our country carried out,but also the regular project for environmental monitoring.CODcr is comprehensive index reflecting the pollution degree caused by organic pollutants in the water.Petroleum oil,animal and vegetale oils are called oil generally and become common organics in the wastewater,contributing a lot to CODcr.It is instructive meaning for the improving of accuracy of CODcr to explore the correlation between CODcr in the water and content of oil.To improve the accuracy value and representativeness of CODcr in wastewater with oils,the method of sample taking is modified.更多还原