土壤含水层处理系统去除对硝基酚

doi:10.11949/j.issn.0438-1157.20141409

化工学报 ›› 2015, Vol. 66 ›› Issue (4): 1440-1448.DOI: 10.11949/j.issn.0438-1157.20141409

土壤含水层处理系统去除对硝基酚

张茜¹, 温玉娟¹, 杨悦锁^1,2, 杜新强¹, 郭辉¹

1. 吉林大学地下水资源与环境教育部重点实验室, 吉林长春 130021;
2. 沈阳大学区域污染环境生态修复教育部重点实验室, 辽宁沈阳 110044

收稿日期:2014-09-19 修回日期:2014-12-24 出版日期:2015-04-05 发布日期:2015-04-05
通讯作者: 杨悦锁
作者简介:张茜(1991-),女,硕士研究生。
基金资助:
国家自然科学基金项目(41272255,41472237);国家教育部博士点基金项目(20130061110066)。

p-Nitrophenol removal using soil aquifer treatment system

ZHANG Xi¹, WEN Yujuan¹, YANG Yuesuo^1,2, DU Xinqiang¹, GUO Hui¹

1. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, Jilin, China;
2. Key Laboratory of Regional Environment & Eco-remediation, Ministry of Education, Shenyang University, Shenyang 110044, Liaoning, China

Received:2014-09-19 Revised:2014-12-24 Online:2015-04-05 Published:2015-04-05
Supported by:
supported by the National Natural Science Foundation of China (41272255, 41472237) and the Ph.D. Programs Foundation of Ministry of Education of China (20130061110066).

摘要/Abstract

摘要：

对硝基酚(PNP)是一种有毒难降解有机物,是生产农药、医药、炸药、合成染料的重要中间产物,其污染控制与消除是国内外研究的热点与难点。土壤含水层处理(SAT)系统具有低耗高效、操作简单等优点,既是当前应用广泛的污水处理系统,也是地下水人工回灌的基本水质处理技术。通过建立一维土柱实验模拟SAT系统,研究非生物与生物强化条件下对硝基酚在SAT系统中的迁移规律及去除效果,并探讨SAT对地下水环境的潜在二次污染风险。研究表明:两种条件下的SAT系统中,PNP浓度在从下至上迁移过程中均逐渐降低;非生物条件下,SAT通过吸附作用去除PNP,土壤层有效处理厚度为60 cm,粗砂、中粗砂、细砂3种介质的去除率为10%左右;生物强化条件下,SAT通过吸附与生物降解共同去除PNP,去除率提升至88.5%。

关键词: 土壤含水层处理(SAT), 对硝基苯酚, 生物强化, 降解, 吸附, 环境

Abstract:

p-Nitrophenol (PNP), a toxic and recalcitrant organic compound, has been widely used as an intermediate for preparing phosphororganic insecticides, medications, explosives and synthetic dyes. Control and removal of PNP is always a research focus. Soil aquifer treatment (SAT) system is a widely used wastewater treatment system with better efficiency and low cost, which is also used for artificial aquifer recharge. The present study investigated PNP removal in the SAT system under abiotic and bio-augmentation conditions using 1D columns. PNP was removed well in both cases. Soil adsorption was the main mechanism under abiotic condition. The depth of soil for effective treatment was 60 cm, and removal rates reached 10% for coarse, medium-coarse and fine sand columns. Under bio-augmentation condition, PNP removal rate with addtional bio-degradation increased to 88.5%.

Key words: soil aquifer treatment, p-nitrophenol, bio-augmentation, degradation, adsorption, environment

中图分类号:

X523

张茜, 温玉娟, 杨悦锁, 杜新强, 郭辉. 土壤含水层处理系统去除对硝基酚[J]. 化工学报, 2015, 66(4): 1440-1448.

ZHANG Xi, WEN Yujuan, YANG Yuesuo, DU Xinqiang, GUO Hui. p-Nitrophenol removal using soil aquifer treatment system[J]. CIESC Journal, 2015, 66(4): 1440-1448.

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土壤含水层处理系统去除对硝基酚

p-Nitrophenol removal using soil aquifer treatment system

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