复合人工湿地对有机污染物的去除效果初步研究 |
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| 出 版 社：生态环境 |
| 发表时间：2006 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：易志刚，刘春常，张倩媚，张太平，任海，王新明 |
| 点 击 率：3309 |
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| 关 键 字：复合人工湿地；有机污染物；多环芳烃；邻苯二甲酸酯；微核实验 |
| 摘 要：研究了由不同植物配置(驯化和未驯化)的两组下行和上行植物床组成的复合人工湿地对生活污水的净化效果。结果表明，CODc 和BODs的去除率达67．3％，68．1％ ，总氮(TN)的去除率为26．9％，总磷(TP)的去除主要发生在上行床，去除率为81．6％。环芳烃(PAHs)中苊(Ace)、荧葸(Flu)、芘(Py)、苯并[a］蒽(BaA)、屈(Chr)、苯并[b］荧蒽(BbF)、苯并[a］芘(BaP)、茚并[1,2,3-cd]芘(InP)和苯并[g，h，i]苝(BPR)经下行床后，去除率超过80％，上行床去除较少。驯化床和未驯化床对PAHs的去除效果差异不显著。邻苯二酸酯(PAEs)中邻苯二甲酸二乙酯(DEP)和邻苯二甲酸二异丁酯(DiBP)经驯化床后，质量浓度显著
升高，经末驯化床后邻苯二酸二(2-乙基)己酯(DEHP)含量显著降低。蚕豆根尖微核实验表明，不同植物配置对微核率影响差异并不显著，毒害物质经下行床后大部分被去除。 |
| 关 键 字(英文)：combined artificial wetland；oganic pollutants；polycyclic aromatic hydrocarbons；phthalate esters；micronucleus test |
| 摘 要(英文)：A combined artificial wetland was built to treat the wastewater of urban domestic sewage． Two types of plant beds，namely plant-tamed bed and plant—untamed bed ，were incorporated into the wetland，and each bed had a vertical down-flowing bed and a vertical up—flowing bed．The results demonstrated that 67.3％ of CODcr，68.1％ of BOD5，26．9％ of TN and 81.6％ of TP were removed after wetland treatment，and TP was removed mainly in up-flowing beds．More than 80％of acenaphthene(Ace)，fluoranthene(Flu)，pyrene (Py)，benzo[a]anthracene (BaA)，chrysene (Chr)，benzo[b]fluoranthene (BbF)，benzo[a]pyrene (BaP)，indeno[1，2,3-cd]pyrene(InP)and benzo[g，h，i]perylene(BPR)were removed in down ．flowing beds，with little further removal in the following up·flowing beds．Th ere was no significant diference for removal of PAHs between plant．tamed beds and plant-untamed beds．Diethyl phthalate(DEP)and diisobutyl phthalate(DiBP)increased significantly in plant-tamed beds，and bis(2-ethyihexy1) phthalate(DEHP)decreased sign ificantly in plant-untamed beds．The MCN test also showed that there was no significant diference of MCN frequency betwen plant-tamed beds and plant-untamed beds．Total toxic organic pollutants were mainly removed in down-flowing beds． |
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 复合人工湿地对有机污染物的去除效果初步研究_2006 生态环境 易志刚.pdf |
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