呼和浩特城区城镇污水处理厂污泥中污染因子特征分析

Analysis of pollution factor characteristics in sludge in urban sewage treatment plant in Hohhot

污泥作为污水处理后大量污染因子的浓缩聚集体,其有效安全的处置是防止二次污染发生的必然要求。本次研究在2015-2019年对呼和浩特城区5家城镇污水处理厂所产生的污泥进行采样监测,分析污泥泥质的污染因子污染状况及其污染分担情况,发现各污染因子质量浓度与其平均值在年际间无显著性差异,总铜、总镉、总汞的年度平均值变异系数较大。污染因子中矿物油、挥发酚的污染分担率为前两位,为本次研究所涉及的城镇污水处理厂污泥泥质中的主要污染因子。

Sludge,as a concentrated aggregate of a large number of pollution factors after sewage treatment,is an inevitable requirement to prevent secondary pollution.In 2015-2019,the study sampled and monitored sludge from five urban sewage treatment plants in Hohhot City,analyzed the pollution factor pollution status of sludge mud and its pollution sharing,and found that there was no significant difference between the quality concentration of each pollution factor and its mean,total copper,total cadmium,The annual average variation coefficient of total mercury is large.The pollution sharing rate of mineral oil and volatile phenol sylph in the pollution factor is the first two,which is the main pollution factor in the sludge sludge of urban sewage treatment plant involved in this study.