大庆地区城市污泥中金属元素含量水平调查与分析

摘要：分析了大庆市四座生活污水处理厂污泥泥质金属元素含量，平行测定的相对标准偏差在1.6%～4.6%之间，加标回收率在93.6%～102.1%之间，表明该方法的精密度和准确度都较好，四个污水处理厂污泥金属总量大小依次为Zn＞Cu＞Cr＞Pb＞Ni＞Cd，锌是含量高可能与城市排水管道大多采用镀锌材料以及Zn的理化性质有关。将其含量水平与标准比较发现：大庆城市污泥中金属含量水平不高，完全符合《农用污泥中污染物控制标准》的重金属标准，为城市污泥处理、处置和环境管理提供可靠的数据支持。

The Daqing Municipal Sludge Metal Elements in Level Survey And Analysis

Abstract: The Daqing City four sewage treatment plant sludge argillaceous content of metal elements, parallel determination of the relative standard deviation in the range of 1.6% to 4.6%, and the recovery in the range of 93.6% to 102.1%, indicating that the methodthe precision and accuracy are better, four sewage treatment plant sludge metal total size of the order of Zn> Cu> Cr> Pb> Ni> Cd, zinc high levels may be associated with the city drains are mostly made of galvanized material andphysical and chemical properties of Zn. Levels of comparison with the standards found: Daqing City sludge metal content level is not high, in full compliance with the standard of heavy metals in sludges from agricultural pollution control standard to provide reliable data for municipal sludge treatment, disposal and environmental management support.