摘要
重金属污染底泥稳定化修复是通过向底泥中添加一种或多种稳定化修复材料,通过沉淀、吸附、离子交换、氧化还原等作用来改变重金属在底泥中的赋存形态,降低重金属的迁移性、生物有效性,降低重金属污染的危害。介绍了重金属污染底泥稳定化修复药剂:碱性药剂、磷酸盐药剂、硫化物药剂、黏土矿物、矿渣材料、生物炭、新型材料、有机类药剂、复配药剂等的研究进展。概述了不同修复药剂对重金属污染底泥的稳定化机理、应用领域及修复效果,以期为污染底泥重金属稳定化药剂的选择提供科学依据。
Stabilization remediation of heavy metal contaminated sediment is accomplished by adding one or more stabilizing remediation materials to the sediment,changing the form of heavy metals in the sediment by precipitation,adsorption,ion exchange,redox,etc.,and reducing mobility,bioavailability and pollution hazards of heavy metal.The research progress in stabilizing remediation agents including alkaline agents,phosphate agents,sulfide agents,clay minerals,slag materials,biochar,new materials,organic chemicals,and compounding agents for heavy metal contaminated sediment were introduced.The stabilization mechanism,application fields and repair effects of different remediation agents on heavy metal contaminated sediments were summarized in order to provide a scientific basis for the selection of heavy metal stabilization chemicals for contaminated sediments.
作者
田启国
李晓光
李国文
李曹乐
黎佳茜
李伟
车璐璐
席北斗
TIAN Qi-guo;LI Xiao-guang;LI Guo-wen;LI Cao-le;LI Jia-xi;LI Wei;CHE Lu-lu;XI Bei-dou(Chinese Research Academy of Environmental Sciences,Beijing 100012,China;School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)
出处
《江西农业学报》
CAS
2020年第8期96-102,共7页
Acta Agriculturae Jiangxi
基金
水污染治理重大专项“唐河污水库及雄安新区地下水污染防控技术研究及工程示范”(2018ZX07110005)。
关键词
底泥
重金属
稳定化
稳定化药剂
Sediment
Heavy metal
Stabilization
Stabilizing agent
