黄河水质COD监测与评价问题研究  

Study on COD Monitoring and Evaluation of Water Quality of the Yellow River

作　　者：暴维英 吴青 周文娴 

机构地区：[1]黄河流域水环境监测管理中心,河南郑州450004

出　　处：《人民黄河》2003年第7期23-25,共3页Yellow River

摘　　要：通过研究原状水样COD值与含沙量的关系,推导出水样COD值与泥沙有机质含量间的转换关系式。经实验验证,原水样的COD值与其中悬浮泥沙的有机质含量定量相关,在一定条件下,泥沙COD值与有机质含量可以通过关系式互相换算。在此基础上对黄河原状水样评价结果的合理性进行了分析,得出“水相未受污染时,评价结果不能合理反映水质客观情况;水相受污染时,评价结果难以区分污染影响”的结论。另外,还对黄河COD澄清水监测与评价方案的合理性进行了分析,认为黄河水质COD监测与评价采用原状水和澄清水同时进行的方案为最优,建议在水中含沙量不大于200mg/L时监测评价原状水,大于200mg/L时监测评价原状水和澄清水。It derives a conversion formula between COD value of water sample and sediment organic matter content based on the relationship between COD value of original water sample and sediment concentration. It is verified by tests that COD value of original water sample is related with the quantity of organic matter content of suspended sediment. Under given conditions, sediment COD value and organic matter content can be converted each other through a formula. Based on that the paper has conducted reasonable analysis on the evaluation results of original water sample of the Yellow River and concluded that when aqueous phase is not polluted, the evaluation results could not reasonably reflect the objective condition of water quality and. When aqueous phase is polluted, the evaluation results are difficult to distinguish pollution influence. In addition, it also has analyzed the rationality of monitoring and evaluation scenario of COD 'clear water' of the Yellow River and considered that the scenario of using original water and settled water simultaneously for monitoring and evaluation is the optimum. It suggests to monitor and evaluate original water, as sediment concentration is less than 200 mg/L and monitor and evaluate both original water and clear water, as sediment concentration is greater than 200 mg/L.

关 键 词：黄河 COD监测 悬浮泥沙 水质评价 含沙量 水相 

分 类 号：X832[环境科学与工程—环境工程]