| 无砾石微孔管地下渗滤系统研究 |
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| 引用本文： | 王成端,党振华.无砾石微孔管地下渗滤系统研究[J].环境工程,2011(Z1). |
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| 作者姓名： | 王成端 党振华 |
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| 作者单位： | 四川理工学院;西南科技大学环境与资源学院; |
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| 基金项目： | 四川省科技支撑计划(2009SZ0244) |
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| 摘 要： | 针对传统无砾石管式地下渗滤系统存在的易堵塞,大气复氧率低和通量低等问题,采取了优选植物、改进渗滤管结构和布水方式等措施。在前期小试的基础上,研究了大管径和小管径在处理生活污水时的效果。结果表明,采用大管径可在一定程度上提高系统的复氧效率,对污染物的去除效果优于小管径,其COD、TP、NH4+-N和TN的平均去除率分别达到87.07%、84.97%、45.6%和52.67%。对氨氮和总氮的去除机理的分析表明,由硝化/反硝化实现生物脱氮是地下渗滤系统去除总氮的主要途径,氨氮的去除率大小反映了硝化反应的强度,改善水力负荷和土壤环境以促进硝化作用是使该系统提高氨氮和总氮去除率的关键。
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| 关 键 词： | 地下渗滤系统 无砾石微孔管 生活污水 脱氮除磷 |
STUDY ON SUBSURFACE SEEPAGE SYSTEM OF GRAVEL-LESS PERFORATED PIPE |
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| Wang Chengduan Dang Zhenhua.STUDY ON SUBSURFACE SEEPAGE SYSTEM OF GRAVEL-LESS PERFORATED PIPE[J].Environmental Engineering,2011(Z1). |
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| Authors: | Wang Chengduan Dang Zhenhua |
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| Institution: | Wang Chengduan1 Dang Zhenhua2 (1.Sichuan University of Science and Engineering,Zigong 643000,China,2.School of Environment and Resources,Southwest University of Science and Technology,Mianyang 621010,China) |
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| Abstract: | In order to solve the problems of clogging,low air reoxygenation and low flux of the traditional gravel-less pipe leach fields(TGPLF),more suitable plants were chosen,the structure of the perforated pipe and the way of distributing water were improved.The basis of the small scale pilot study of Gravel-less perforated pipe leach fields(GPPLF),the study was done on GPPLF treating the domestic sewage with larger and smaller diameter pipe.The result indicated that the larger diameter pipe system can increase th... |
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| Keywords: | subsurface infiltration wastewater system gravel-less perforated pipe domestic sewage nitrogen and phosphorus removal |
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