螯合剂在治理垃圾筛分腐殖土中重金属时的应用

Application of Chelating Agents in the Treatment of Heavy Metals in Waste Screening Humus Soil

城市垃圾简易填埋场由于早期填埋时存在有毒有害垃圾混合填埋的情况,因此,文章研究了螯合剂在治理垃圾筛分腐殖土中重金属的应用情况。通过对腐殖土拌入水性丙烯酸系列螯合剂,可使得腐殖土中重金属污染物螯合稳定化,避免腐殖土回填后对土壤及地下水造成重金属污染。

In the early land filling,toxic and harmful wastes were mixed in the simple landfill sites for municipal solid wastes.Therefore,this paper researched the application of chelating agents in the treatment of heavy metals in waste screening humus soil.By mixing humus soil with water-based acrylic chelating agents,heavy metal pollutants in the humus soil can be chelated and stabilized to avoid heavy metal pollution to soil and groundwater after humus backfilling.