摘要
地下水污染问题日益严峻,修复工作势在必行。对污染地下水修复技术的研究具有重大的理论和实际意义。本文在综述有机污染地下水原位修复技术以及微纳米气泡技术的基础上,提出将微纳米气泡应用于地下水原位修复。提出微纳米气泡强化修复技术的现场应用方案,利用微纳米气泡的高效气体传质以及存在时间长的特性提高微生物的活性,实现污染物去除。数值模拟结果表明,微纳米气泡可以大范围提高地下水中的溶解氧,提高好氧微生物的活性,有效修复地下水体。研究表明,微纳米气泡强化修复技术节能高效、环境友好,在有机污染地下水修复中具有极大的应用潜力。
The groundwater pollution by organic contaminants is becoming more and more severe, making groundwater remediation be imperative. The researches on the remediation technology are of theoretical and practical importance. Based on the review of in-situ groundwater remediation technology for organic contaminants and micro-nano bubble MNBs technology, MNB technology is proposed for groundwater remediation. The scheme using MNB for in-situ groundwater remediation is introduced. The contaminants can be removed by biodegradation enhanced by MNB. The numerical simulation results of in-situ application show a great enhancement on dissolved oxygen and a significant influence zone for contaminant removal. The MNB technology is effective, energy-efficient and environment-friendly to clean up contaminants, which has great potential in groundwater remediation.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2015年第S2期115-120,共6页
Chinese Journal of Geotechnical Engineering
基金
国家重点基础研究发展计划("9 7 3"计划)项目(2012CB719804)
清华大学水沙科学与水利水电工程国家重点实验室自主研究课题(SKLHSE-2012-KY-01
2013-D-01)
关键词
污染地下水
原位修复
微纳米气泡
现场方案
数值模型
groundwater pollution
in-situ remediation
micro-nano bubble
field scheme
numerical model
