Experimental study of permeability in rainwater garden filtration system

doi:10.3969/j.issn.1001-0505.2016.06.033

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Experimental study of permeability in rainwater garden filtration system
	Wang, Yajun 1,2; Zhang, Hong 1,3; Wei, Kun 1,3
刊名	Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition)
	2016-11-20
卷号	46 期号:6 页码:1308-1312
关键词	Efficiency Mechanical permeability Radioactive tracers Hydraulic residence time Hydraulic retention time Infiltration characteristic Non-linear relationships Non-uniform flow fields Rainwater garden Saturated flow Tracer tests
ISSN号	10010505
DOI	10.3969/j.issn.1001-0505.2016.06.033
英文摘要	To investigate the filtration process in the rainwater garden filtration system and study the monitoring parameters to evaluate the infiltration process, the hydraulic residence time distribution density curves under different hydraulic loads were obtained by using the pulse tracer tests.The hydraulic efficiency was calculated according to the relationship between the nominal hydraulic residence time and the peak hydraulic retention time. The relationship of the hydraulic load and the permeability coefficient was obtained by using the infiltration characteristic tests. The results show that there is the non-uniform flow field distribution in the rainwater garden. When the hydraulic load is 1.0 m3/(m2·d), the effective volume proportion of the packing layer for removing pollutants is the largest and the hydraulic efficiency is the highest.The seepage flow in the submerged area is closer to the push flow. The permeability coefficient has the inverse relationship with the hydraulic efficiency, and the nonlinear relationship with hydraulic load. The 4-phase assumption of the filtration process is verified by the experimental results of the pulse tracer tests and the infiltration characteristic tests. © 2016, Editorial Department of Journal of Southeast University. All right reserved.
语种	中文
出版者	Southeast University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112726]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Southeast University, Nanjing; 210096, China; 2.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Southeast University-Monash University Joint Research Centre for Water Sensitive Cities, Nanjing; 210096, China
推荐引用方式 GB/T 7714	Wang, Yajun,Zhang, Hong,Wei, Kun. Experimental study of permeability in rainwater garden filtration system[J]. Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition),2016,46(6):1308-1312.
APA	Wang, Yajun,Zhang, Hong,&Wei, Kun.(2016).Experimental study of permeability in rainwater garden filtration system.Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition),46(6),1308-1312.
MLA	Wang, Yajun,et al."Experimental study of permeability in rainwater garden filtration system".Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) 46.6(2016):1308-1312.