|本期目录/Table of Contents|

[1]李志萍,陈肖刚,郝仕龙,等.污染河流中苯系物对浅层 地下水影响的室内模拟试验[J].地球科学与环境学报,2007,29(01):70-74.
 LI Zhi-ping,CHEN Xiao-gang,HAO Shi-long,et al.Lab-Scale Experiment of Influence on Shallow Groudwater by BTEX in Polluted River[J].Journal of Earth Sciences and Environment,2007,29(01):70-74.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第29卷
期数:
2007年第01期
页码:
70-74
栏目:
出版日期:
2007-03-15

文章信息/Info

Title:
Lab-Scale Experiment of Influence on Shallow Groudwater by BTEX in Polluted River
作者:
李志萍1陈肖刚1郝仕龙1沈照理2
1.华北水利水电学院岩土工程系,河南郑州450008;2.中国地质大学水资源与环境工程学院,北京100083
Author(s):
LI Zhi-ping1CHEN Xiao-gang1HAO Shi-long 1SHEN Zhao-li2
1. Department ofGeotechnical Engineering, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450008, Henan, China; 2. Schoolof Water Resource and Environmental Engineering, China University ofGeosciences, Beijing 100083, China
关键词:
污染河流苯系物地下水
Keywords:
polluted river BTEX groundwater
分类号:
P69
DOI:
-
文献标志码:
A
摘要:
为了研究污染河流中苯系物对浅层地下水的影响,室内试验选用3种天然砂土作为渗透介质,以生活污 水模拟污染河流,68d以后发现,苯、甲苯和苯系物总量的总去除率在粗砂中分别为32.06%、21.39%和 27.13%。在两种中砂中总去除率2号柱为76.26%、81.40%和87.99%,3号柱为68.94%、74.41%和 81.69%,粗砂小于中砂,并且由于2号柱的粘粒物质含量大,其总去除率大于3号柱和1号柱。苯系物各组分 浓度随深度呈递减趋势,苯系物的净化作用主要发生在地表以下0.4m范围内。水动力特征的改变影响污染物 的迁移和转化特征,苯系物的去除机理为挥发、吸附和生物降解,其中最主要的是厌氧条件下的微生物降解。
Abstract:
To research the influence of BTEX in polluted river on shallow groundwater, in the lab-scale experiment, three kinds of natural sand were chosen as infiltration medium, and polluted rivers were simulated by domestic sewage. After 68 days, it was found that the removal ratios of benzene, toluene and total BTEX are 32. 06%, 21.39% and 27.13% in coarse sand, and in two kinds of medium sand are 76.26%, 81.40% and 87. 99% in column 2, 68.94%,74.41% and 81.69% in column 3. The removal ratio of total BTEX in column 2 is the greatest due to the largest clay material content. The concentration of BTEX decreased with depth. The removal of BTEX mainly occurred in the 0.4 m under the ground. The changes of hydrodynamic characteristics influence the migration and transformation of pollutants. The removal mechanism of BTEX are volatilization, adsorption and biodegradation. Anaerobic microorganism degradation is dominant.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2006-04-10 基金项目:国家重点基础研究发展规划项目(G1999045706);华北水电学院青年基金项目(HSQJ2006010) 作者简介:李志萍(1971-),女,河北邯郸人,副教授,博士研究生,从事水污染控制与环境评价研究。E-mail:lizhiping@ncwu.edu.Cn
更新日期/Last Update: 1900-01-01