多相抽提+原位化学氧化工艺去除地下水中苯的应用研究  

Application Study of Multiphase Extraction and In-Situ Chemical Oxidation Process to Remove Benzene from Groundwater

作　　者：闵浩 MIN Hao(Shanghai Jingwen Greening Art Development Co., Ltd., Shanghai 200052)

机构地区：[1]上海精文绿化艺术发展股份有限公司,上海200052

出　　处：《工业安全与环保》2020年第6期89-92,共4页Industrial Safety and Environmental Protection

摘　　要：针对某工业搬迁企业地下水中苯的污染,采用了多相抽提+原位化学氧化工艺进行修复处理。结果表明,抽提/回注交替0~36 d,苯的浓度整体呈下降趋势,偶有小幅波动;抽提/回注40 d后,监测井中苯的浓度基本趋于稳定,且浓度低于修复目标值;抽提/回注的交替周期以40~50 d为宜。同时修复完成后一年期内设置了6个监测点位,均采集8个批次样品,样品中苯的浓度与修复目标值的比值在0.16~0.25之间,均满足修复效果评估的要求。Aiming at benzene pollution in the groundwater of a site that was used for industrial production,a multiphase extraction and in-situ chemical oxidation process was used for remediation treatment.The results showed that,with alternative 0 to 36 days of extraction/reinjection,the concentration of benzene generally decreased,with occasional minor fluctuations.After 40 days of extraction/reinjection,the concentration of benzene in the monitoring wells stabilized and the concentration was lower than remediation target.Therefore,the optimum alternating cycle of extraction/reinjection was between 40 to 50 days.Meanwhile,6 monitoring points were set up within one year after remediation and 8 batches of samples were collected.The ratio of the concentration of benzene in the sample to remediation target was between 0.16 and 0.25,meeting the requirements for repair effect evaluation.

关 键 词：多相抽提 原位化学氧化 地下水 苯 

分 类 号：X523[环境科学与工程—环境工程]