Cadmium contaminated agricultural soil is becoming a serious environment problem in China,posing a severe threat to food security.The advantages and disadvantages of conventional remediation technologies and combined remediation technologies for cadmium contaminated agricultural soil are summarized through analyzing various remediation technologies.Physical remediation technologies can only apply to a limited scope.Chemical remediation technologies are economical and efficient,but may cause secondary pollution.Biology remediation technologies are environmentally friendly,but need longer remediation period,so their large scale and long term service needs to be inspected.Because any single technology has shortages,combined remediation technologies show more application potentials.Experimental analysis results indicate that combined remediation technologies present better effect than any single technology.It is suggested to further study the combining paths and usages to improve the remediation efficiency for Cd contaminated agricultural soil.
NETL
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万方数据
