| 混合基质垂直流人工湿地净化废水效果 |
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| 引用本文： | 朱文玲,崔理华,朱夕珍,汤仲恩,余志敏. 混合基质垂直流人工湿地净化废水效果[J]. 农业工程学报, 2009, 0(Z1) |
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| 作者姓名： | 朱文玲 崔理华 朱夕珍 汤仲恩 余志敏 |
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| 作者单位： | 华南农业大学环境科学与工程系; |
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| 基金项目： | 国家自然科学基金项目(40571074,40871110,30828005);;粤港招标(东莞专项)(2006168402) |
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| 摘 要： | 利用两种混合基质(蛭石+高炉渣、陶粒+高炉渣)构建模拟垂直流人工湿地处理化粪池出水,运行1a试验结果表明,蛭石+高炉渣基质对总鳞(TP)、总氮(TN)、NH4+-N、CODCr的去除效果要好于陶粒+高炉渣系统,而且其4个组合系统对TP、TN、CODcr、NH4+-N去除率分别大于71%、2.5%、61%、65%;水力学负荷比污染物的去除率存在密切关系:CODcr、NH4+-N、TP在水力负荷较小(30.6cm/d)时的去除率比水力负荷61.2cm/d下高;而种植美人蕉的蛭石+高炉渣组合在水力负荷为30.6cm/d,停留时间为0.848d时的处理效果较好,其对NH4+-N、TP、CODcr的去除率分别为94.51%、89.13%、66.46%,均达到了《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准。
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| 关 键 词： | 混合基质 人工湿地 垂直流 化粪池污水 |
Removal efficiencies of simulated mixed matrix vertical-flow constructed wetlands for wastewater effluent treatment |
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| Affiliation: | Department of Environmental Science and Engineering;South China Agricultural University;Guangzhou;510642;China |
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| Abstract: | Two mixed substrates of vermiculite-slag and ceramic-slag were used in simulating vertical-flow constructed wetland for treating septic tanks effluent.The one-year operation results indicated that the purifying efficiencies of total nitrogen(TN),CODCr,NH4 +-N and total phosphorus(TP)by mixed substrate of vermiculite-slag were better than those of ceramic-slag,of which removal efficiencies of TP,TN,CODCr and NH4 + -N were higher than 71%,2.5%,61%and 65%,respectively.The hydraulic loading rate played a signif... |
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| Keywords: | mixed substrate constructed wetlands vertical-flow septic tanks effluent |
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