绿色低碳目标下的地下水可渗透反应墙修复技术的应用和挑战

Application and Challenge of Groundwater Permeable Reaction Barrier Remediation Technology Under Green and Low-Carbon Goals

针对地下水污染的修复,目前国内应用最多的技术为抽出-处理、原位化学氧化法,但已无法全面适应绿色低碳修复的要求。可渗透反应墙技术具有修复效果可持续性的优点,具备节能减排、绿色低碳的潜力,符合绿色可持续修复的发展趋势。目前,可渗透反应墙技术的应用尚面临地下水污染特征和水文地质条件精准刻画、绿色长效反应材料、多技术组合联用等方面的挑战。

For the remediation of contaminated groundwater,the most widely used technologies in China are Pump-and-Treat and In Situ Chemical Oxidation which have been unable to fully meet the requirements of green and low-carbon remediation.Permeable reactive barrier(PRB)technology has the advantages of sustainable effect,potentials of energy saving and emission reduction,green and lowcarbon,in line with the development trend of green sustainable remediation.At present,the application of PRB technology still faces challenges such as accurate characterization of groundwater pollution characteristics and hydrogeologic al conditions,green and longterm reactive materials,and multi-technology combination.