| 人工湿地沸石填充方式研究 |
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| 引用本文： | 卢少勇,张彭义,余 刚.人工湿地沸石填充方式研究[J].环境科学研究,2006,19(3):91-95. |
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| 作者姓名： | 卢少勇 张彭义 余 刚 |
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| 作者单位： | 1.清华大学,环境科学与工程系,北京,100084;中国环境科学研究院,湖泊生态环境创新基地,国家环境保护湖泊污染控制重点实验室,北京,100012 |
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| 摘 要： | 针对传统的沸石湿地系统中沸石用量大,与沸石相关的费用高的缺点,提出采用前置沸石和表铺沸石填充方式来改善湿地中的污染物去除效果.对比研究了人工湿地中3种沸石填充方式(底铺、前置和表铺)对农田排灌水中污染物的去除效果.结果表明:茭白-土壤湿地的污染物去除效果优于无植物的土壤湿地系统.沸石-土壤-植物系统比传统的土壤-植物系统有更好的CODCr,总氮和氨氮去除效果.3种不同沸石填充方式中,底铺沸石的总氮和总磷去除效果最好;表铺沸石的总氮、总磷和CODCr去除效果比前置沸石的好,有植物和土壤的湿地系统增加前置沸石段后CODCr的去除率升高3.4%,增加表铺沸石后CODCr去除率提高12.3%.
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| 关 键 词： | 人工湿地 沸石 填充方式 |
| 文章编号： | 1001-6929（2006）03-0091-05 |
| 收稿时间： | 2005-08-11 |
| 修稿时间： | 2005-08-11 |
Research of Zeolite Filled Modes in Constructed Wetland |
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| LU Shao-yong,ZHANG Peng-yi and YU Gang.Research of Zeolite Filled Modes in Constructed Wetland[J].Research of Environmental Sciences,2006,19(3):91-95. |
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| Authors: | LU Shao-yong ZHANG Peng-yi and YU Gang |
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| Institution: | 1.Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China;Research Center of Lake Eco-environment, State Environmental Protection Key Laboratory for Lake Pollution Control,Chinese Research Academy of Environmental Sciences,Beijing 100012,China2.Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | Aimed at the defect of large consumption of zeolites in traditional zeolites filled wetland systems,top zeolite(TZ) mode and preposition zeolite(PZ) mode were put forward for the contaminants removal in constructed wetland.Three kinds of zeolites filled modes,including bottom zeolite(BZ),TZ and PZ,were studied in constructed wetland for agricultural drainage and irrigation wastewater treatment.Constructed wetland including Zizania caduciflora and soil had better pollutant removal effect than the control system without helophyte.Constructed wetland with zeolite had better chemical oxygen demand(COD_(Cr)),total nitrogen(TN) and total phosphorus(TP) removal rate than constructed wetland without zeolite.Among three kinds of zeolite filled modes,BZ mode system has best TN and TP removal rate,TZ system has better TN,TP and COD_(Cr) removal rate than PZ.COD_(Cr) removal rate increased 3.4% while PZ was added to the constructed wetland with hydrophyte and soil.COD_(Cr) removal rate increased 12.3% while TZ was added to the constructed wetland with hydrophyte and soil. |
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| Keywords: | constructed wetland zeolite filled mode |
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