修复石油类污染地下水的PRB反应介质研究  

Study on PRB Reactive Media in Remediation of Petroleum Contaminated Groundwater

作　　者：张莹[1,2] 张玉玲[1,2] 张晟瑀[1,2] 万玉玉[1,2] 李浩旭[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026 [2]吉林大学水资源与环境研究所,长春130026

出　　处：《吉林大学学报（地球科学版）》2010年第2期399-404,共6页Journal of Jilin University：Earth Science Edition

基　　金：国家水体污染控制与治理科技重大专项(2008ZX02707-007);吉林大学'985工程'研究生创新基金资助项目(20080249);吉林大学基础科研业务'创新团队'项目(20082004)

摘　　要：以石油类污染地下水为研究对象,选用颗粒活性炭、草炭土、粒径为1 mm和3 mm的页岩陶粒、泥岩陶粒、高岭土、聚乙烯醇、细砂和白砂等9种材料进行PRB反应介质筛选及其性能研究。筛选实验结果表明,草炭土去除地下水中总石油烃的效果最好;动态吸附实验结果表明,在吸附1 h时,草炭土去除总石油烃已经达到动态平衡;通过热处理改性,草炭土去除石油烃效果得到提高,在130℃、热处理2 h去除石油烃效果最好;颗分后吸附实验结果表明,在粒径<2 mm范围内,草炭土吸附效果均十分显著。在此基础上进行吸附石油烃前后草炭土的微观结构观察及理化性质分析。以上研究表明,草炭土作为PRB反应介质处理石油类污染地下水具有良好的应用前景。Nine kinds of materials,including granular activated carbon（GAC）,peat,shale-haydite,mudrock ceramicite with size of 1 mm and 3 mm,kaolin clay,polyvinyl alcohol,fine sand and white sand were comparied for PRB reactive media testing.The results of the experiment showed that the reduction of TPH in groundwater by peat media was optimal.The results of dynamic adsorption experiment showed that it reached adsorption equilibrium after 1 h.The removal effect of TPH was improved by heat-treatment of peat.The removal effect was optimal under the condition of 130 ℃ and 2 h.The particle classification test results showed that the removal effect was significant when the particle size was less than 2 mm.On the basis of above,microstructure of peat was observed and physicochemical property of peat was analized.It had a good application prospects for PRB with the peat as the reactive media in the remedy area of petroleum contaminated groundwater.

关 键 词：石油类污染 地下水 PRB反应介质 总石油烃 吸附 草炭土 

分 类 号：X523[环境科学与工程—环境工程]