Status and existing problems of remediation and stabilization technology of heavy metal contaminated soil
Heavy metal pollutants can cause changes in soil structure,function and physical and chemical properties,resulting in deterioration of soil quality.It is urgent to solve the problem of soil pollution caused by heavy metal ions.The pollution status of heavy metals was analyzed,and the existing forms,transformation and migration paths of heavy metals in soil were summarized.The mechanism and influencing factors of curing/stabilizing remediation techniques on heavy metal pollutants in soil were analyzed.The results showed that the solidified and stabilized material had a complex structure,but its mechanism was not fully studied.When repairing heavy metal ions in soil,they only changed their existing form in the soil and couldn't be completely removed.Solidification/stabilization techniques tended to ignore long-term effectiveness after repair and lacked practical application and monitoring evaluation of actual engineering.The future development direction of soil heavy metal solidification/stabilization technology is to develop a variety of combined remediation technologies to effectively solve the problem of soil pollution.
soilcuring/stabilizationheavy metal pollutionrepair techniques
万方数据
维普
