Shale,rough grave,ironstone,hornblendes,were selected for the packing of constructed wetland to carry out the researches on effect of sewage purification in lab by different substances.

• 选取页岩、粗砾石、铁矿石、麦饭石及其组合作为人工湿地填料,进行不同基质室内小试污水净化效果研究。