| 无砾石微孔管地下渗滤系统试验研究 |
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| 引用本文： | 蔡世涛,王成端,徐庆元,王晓艳,李成龙.无砾石微孔管地下渗滤系统试验研究[J].环境科学与技术,2011,34(3):98-101. |
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| 作者姓名： | 蔡世涛 王成端 徐庆元 王晓艳 李成龙 |
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| 作者单位： | 1. 西南科技大学环境与资源学院,四川,绵阳,621010
2. 四川科学城神工环保科技有限公司,四川,绵阳,621900 |
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| 摘 要： | 针对传统无砾石管式地下渗滤系统存在的处理性能差,渗滤通量低两个问题,通过去掉包裹织物,提高渗滤管开孔率、改变开孔方式,设计了无砾石微孔管地下渗滤系统。通过实验研究表明,无砾石微孔管地下渗滤系统对COD、氨氮的去除率比传统管式系统分别提高了10.8%、12.7%,总磷去除率并无显著差异,ORP值提高约85 mV,渗滤通量提高26.8%。在3.3 cm/d的水力负荷下,无砾石微孔管地下渗滤系统出水COD、氨氮、总磷平均浓度分别为19 mg/L,0.62 mg/L,0.048 mg/L。渗滤管下10 cm的土壤层去除了约70%的COD,80%的氨氮和91%的总磷,向下随着土壤深度的增加,单位厚度的土壤层去除的污染物量呈显著下降趋势。
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| 关 键 词： | 无砾石微孔管 地下渗滤系统 去除效率 氧化还原电位 |
A Study on Gravel-less Leach-fields with Perforated Pipe |
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| CAI Shi-tao,WANG Cheng-duan,XU Qing-yuan,WANG Xiao-yan,LI Cheng-long.A Study on Gravel-less Leach-fields with Perforated Pipe[J].Environmental Science and Technology,2011,34(3):98-101. |
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| Authors: | CAI Shi-tao WANG Cheng-duan XU Qing-yuan WANG Xiao-yan LI Cheng-long |
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| Institution: | CAI Shi-tao1,WANG Cheng-duan1,XU Qing-yuan2,WANG Xiao-yan1,LI Cheng-long1(1.School of Environment and Resource,Southwest University of Science and Technology,Mianyang 621010,China,2.Shengong Environmental Protection Sci.& Tech.Co.Ltd.,Sichuan Science City of Mianyang,Mianyang 621900,China) |
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| Abstract: | This paper refers to the on-site wastewater treatment based on soil absorption fields with regard to a new pipeline system-gravel-less perforated pipe leach-fields(GPPLF)-as a substitute for the conventional gravel-less pipe leach-fields(TGPLF).An experiment was conducted to test the new system's performances about upgrading of effluent flux and removal of pollutants,inter alia,COD,ammonia nitrogen and TP.Results indicated that with GPPLF the soil layer of 10 cm thick under the perforated pipes removed abou... |
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| Keywords: | perforated pipe gravel-less leach-fields removal efficiency redox potential |
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