原位注入强化微生物修复土壤地下水的缓释氧材料研究  

Study on Slow-release Oxygen Materials for In-situ Injection to Enhance Microbial Remediation of Soil and Groundwater

作　　者：张欣欣 王琛 陈健俊 朱炜俊 张峰 ZHANG Xin-xin;WANG Chen;CHEN Jian-jun;ZHU Wei-jun;ZHANG Feng(Shanghai Greenment Environmental Technology Co.,Ltd.,Shanghai 200080,China)

机构地区：[1]上海格林曼环境技术有限公司,上海200080

出　　处：《广州化工》2024年第11期113-115,118,共4页GuangZhou Chemical Industry

基　　金：上海建工集团股份有限公司重点科研项目课题计划(22YJKF-29)。

摘　　要：针对有机污染场地土壤地下水污染问题,通过选择缓释氧化合物过氧化钙作为活性成分,选择悬浮吸附材料膨润土作为惰性成分,配制形成了一种可应用于原位注入强化微生物修复的缓释氧材料,并经过试验验证可以有效实现长效释氧。文中阐述了研究背景、试验设计与方法原理,通过缓释氧化合物的筛选、惰性组分的筛选及缓释氧材料效果验证等试验过程,确定了缓释氧材料的最佳配比。配制形成的缓释氧材料可以通过原位注入引入污染地层,实现注入材料与污染介质充分接触、稳定释氧的好氧生物刺激修复效果,为有机污染场地土壤地下水长效低耗绿色修复提供了新途径。Aiming at the problem of soil and groundwater contamination at organic contaminated sites,a slow-release oxygen material that can be applied to in-situ injection for enhanced microbial remediation was formulated by selecting a slow-release oxygen compound,calcium peroxide,as the active ingredient,and a suspended adsorbent material,bentonite,as the inert ingredient,and it was verified through experiments that the material can effectively achieve long-lasting oxygen release.The research background,experimental design and method principles were described,and determined the optimal ratios of slow-release oxygen materials through the experimental processes of screening of slow-release oxygen compounds,screening of inert components and verification of the effect of slow-release oxygen materials.The formulated slow-release oxygen material could be introduced into the contaminated strata through in-situ injection,forming an aerobic biostimulation remediation effect in which the injected materials were in full contact with the contaminated medium and release oxygen stably,which provided a new way for the long-lasting and low-consumption green remediation of soil and groundwater of the organic contaminated sites.

关 键 词：原位注入 缓释氧材料 过氧化钙 膨润土 

分 类 号：X53[环境科学与工程—环境工程]