铬污染土壤异位修复技术及二次污染控制研究

Study on Ectopic Remediation Technology and Secondary Pollution Control of Chrome-contaminated Soil

随着国家产业结构的转型升级和重污染行业整治要求的不断提升,一些电镀、制铬等涉铬重污染企业纷纷停产关闭,场地中遗留的铬污染土壤急需修复治理。通过对铬污染土壤异位修复技术原理、工艺特点以及应用局限性进行梳理分析,为铬污染土壤的异位修复技术筛选提供依据;同时,在粉尘、烟气、水处理等方面提出相应的二次污染控制措施,明确工艺设计要点和工艺参数,为铬污染土壤异位修复技术的工程化应用提供参考。

With the transformation and upgrading of the national industrial structure and the continuous improvement of the remediation requirements of heavy polluting industries,some heavy polluting enterprises related to chromium,such as electroplating and chromium manufacturing,have stopped production and closed down.The chrome-contaminated soil left in the site is in urgent need of remediation.By combing and analyzing the principle,process characteristics and application limitations of ectopic remediation technology in chrome-contaminated soil,it provided a basis for the screening of ectopic remediation technology in chrome-contaminated soil.At the same time,the corresponding secondary pollution control measures were put forward in dust,flue gas,water treatment and other aspects,and the key points and parameters of process design were clarified,so as to provide reference for the engineering application of ectopic remediation technology of chrome-contaminated soil.