Study on Application of PRB Technology in Situ Remediation of Groundwater Polluted by Landfill Leachate

With the continuous development of urbanization,generation of leachate from more and more domestic garbage led to groundwater pollution increasingly significant.Four kinds of permeable reactive barrier(PRB) were designed by using iron powder,modified coal cinder,bentonite,activated carbon,zeolite,quartz sand and their mixtures as reaction medium,for studying the feasibility and the efficiency of PRB technology in remediation of groundwater polluted by landfill leachate.The results indicated that the CODCr removal rate was 85.7%～91.9%,which showed that PRB technology was an efficient method for the treatment of groundwater polluted by landfill leachate,and yet was expected to be further explored.