摘要
在土壤及地下水修复领域,原位修复技术因其成本低、占地少、扰动小、二次污染与健康安全风险可控等优势而受到广泛关注。原位注入技术常被应用于原位化学氧化、原位化学还原及原位生物修复等多种修复技术中,常见药剂注入形式包括注射井注入、直推式注入、高压旋喷注入和深层搅拌注入等。通过对应用于土壤地下水原位修复的各类原位注入技术的特点、实施情况与优缺点等进行比较,分析了各技术的不足,并对存在的问题进行了总结,同时对原位注入修复技术中尚未彻底解决的一些问题提出建议。
In the field of soil and groundwater remediation,in-situ remediation technology had attracted wide attention for its advantages of low cost,less land occupation,limited disturbance and controllable low secondary pollution and health and safety risk.In-situ injection was often applied in the execution of in-situ remediation technologies such as in-situ chemical oxidation,in-situ chemical reduction and in-situ bioremediation and the specific chemical injection methods included injection well,direct push,high-pressure rotary injection and soil mixing injection.The existing in-situ injection technologies applied in in-situ remediation were reviewed,their characteristics,implementation situations and advantages and disadvantages were compared,the shortcomings and problems of each injection method were summarized,and the future development directions of in-situ injection remediation technology were prospected in this article.
作者
王健华
WANG Jian-hua(Shanghai Greenment Environmental Technology Co.,Ltd.,Shanghai 200001,China)
出处
《环境科技》
2022年第2期72-78,共7页
Environmental Science and Technology
基金
国家重点研发计划项目(2018YFC1803303)。
关键词
土壤地下水修复
原位修复
原位注入
Soil and groundwater remediation
In-situ remediation
In-situ injection
