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首页> 外文会议>International Conference on Materials chemistry and environmental protection >A Study on Nutrient Properties and Heavy Metal Concentrations of Waste Activated Sludge Derived from Municipal and Small Town Domestic Sewage Treatment Plants
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A Study on Nutrient Properties and Heavy Metal Concentrations of Waste Activated Sludge Derived from Municipal and Small Town Domestic Sewage Treatment Plants

机译：城市和小城镇国内污水处理厂营养性能和重金属浓度的研究

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摘要

In order to better understand land application of sewage sludge, the nutrient properties and heavy metal concentrations in sewage sludge were investigated from two different wastewater treatment plants in China. The results show that the OM contents were significantly different between Shenyangdomestic sewage treatment plant and Ganqika domestic sewage treatment plant. The OM contents were 48.75% and 77.66%, respectively. The total nutrient contents, contained TN, TP and TK content, were 3.65% and 4.24%, respectively. It was found that the total concentrations of As (182.7 mg/kg dry matter) and Ni (109.0 mg/kg dry matter) in Shenyang sewage sludge, and Hg (23.7 mg/kg dry matter) in sewage sludge generated from Ganqika are higher than Chinese regulation limit of pollutant for sludge to be used for agriculture (GB18918-2002), Hg and Ni elements are main restrictive factor of sewage sludge application for agricultural use.
机译：为了更好地了解污水污泥的土地应用，从中国两种不同的废水处理厂研究了污水污泥中的营养性质和重金属浓度。结果表明，沉阳污水处理厂与甘桥污水处理厂的OM内容显着差异。 OM内容分别为48.75％和77.66％。总营养素含量，含有TN，TP和TK含量分别为3.65％和4.24％。发现沉阳污水污泥中的（182.7mg / kg干物质）和Ni（109.0mg / kg干物质）的总浓度和甘奇卡产生的污水污泥中的Hg（23.7mg / kg干物质）更高比中国污染污染物的污染物（GB18918-2002），HG和NI元素是农业用途污水污泥申请的主要限制性因素。

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