影响无砾石微孔管地下渗滤系统的几个主要因素  

Main factors affecting gravel-less perforated pipe leach fields

作　　者：王成端[1] 党振华[2] 

机构地区：[1]四川理工学院,自贡643000 [2]西南科技大学环境与资源学院,绵阳621010

出　　处：《环境工程学报》2012年第12期4497-4503,共7页Chinese Journal of Environmental Engineering

基　　金：四川省科技支撑计划(2009SZ0244)

摘　　要：为了进一步明确植物、土壤、管道对无砾石微孔管地下渗滤系统中污染物去除的贡献能力大小,采用2种植物、2种管道、2种土壤组合形成8个平行系统,采用对比实验方法研究了植物、管道、土壤对地下渗滤系统中污染物去除效果的改变。结果表明,植物、土壤、管道任一因素的单独影响效应显著,但是组合后的交互效应不存在显著差异。而且,在土壤、植物、管道3因素中限定其中2个因素,对比研究另外一种因素的条件下,得到在COD、TP、NH4+-N、TN的去除效果上,变化趋势相同,均是渗滤管外径200 mm>渗滤管外径160 mm,吉祥草>灯芯草,砂壤土>粘土,且部分存在显著性差异(P<0.05)。In order to further clarify the influence of plants, soil and pipes on gravel-less perforated pipe leach fields, two plants, two kinds of soil and two pipes were selected to form 8 parallel systems. Meanwhile, the removal rates of organic substance, nitrogen and phosphorus of the decentralized domestic sewage were compara- tively studied under the 3 factors. The result indicated that impact of any one factor among plants, soil and pipes was significant, however, combined effect of differences did not exist. To check a single factor, the same order was found that 200 mm external diameter of the infiltration pipe 〉 160 mm external diameter of the infiltration pipe, pink reineckea herb 〉 juncus effusus, sandy loam 〉 clay, and there was a significant difference （ P 〈 0.05 ） in some parts of which.

关 键 词：地下渗滤系统 无砾石微孔管 生活污水 影响因素 

分 类 号：X703[环境科学与工程—环境工程]