新乡市生活污水中有效成分和重金属铬及镉含量的分析

Analysis of Effective Components and Heavy Metal Cr and Cd Contents in Domestic Sewage of Xinxiang City

在实验室条件下,分析了新乡市生活污水中有效成分、重金属铬(Cr)和镉(Cd)的含量。结果表明,生活污水中有效氮、磷含量较高,Cr与Cd的含量未超过《农田灌溉水质标准》(GB5084-92),可用于农田灌溉。同时,经处理后的再生水中,Cr与Cd的含量明显降低。从长远考虑,利用再生水灌溉农田既能实现污水资源化,又能减少对环境的污染。

The effective components and heavy metal Chromium（Cr） and Cadmium（Cd）contents in domestic sewage of Xinxiang city were analyzed in the lab. The results indicated that the effective components of N and P in domestic sewage were higher, but the heavy metal Cr and Cd contents did not surpass the standard issued by ＂Farmland Irrigation Water Quality Standard＂ （GB5084-92） ,so the water could be used in farmland irrigation. Furthermore,the heavy metal Cr and Cd contents could be reduced by treating the sewage. In a long run,the use of resurgent water in irrigating the farmland could not only realize sewage resourcelization, but also reduce the environment pollution.