Sewage sludge was collected from Lucun wastewater treatment plant , Wuxi , and the chemical components and heavy metals by a sequential extraction in sludge were investigated in the present study .
采用现场调查采样及室内分析的方法，研究了无锡芦村污水处理厂污水处理过程中污泥的化学组分和重金属元素的形态分布。
lucun