Study on macro-microscopic properties and separated technology of waste residue

The rapid growth of solid waste has posed a serious threat to the urban environment and the safety of groundwater. This paper relies on the land formation project of Shenzhen Marine emerging Industrial Base. Waste residue is used as filling material for landfilling. In this paper, macro and micro tests, heavy metal and organic matter content tests of waste residue and underground silt were carried out. The physical mechanics, microscopic properties and pollution degree were analysed. The separation technology of waste residue is also studied. The results show that the composition of the waste residue is complex. The contents of heavy metals and organic pollutants did not exceed the risk control standard of construction land. The physical properties and pollution requirements of waste residue used in landfilling are put forward. The technology of three-step separation and separation of waste residue is put forward. (paper)