HYDRODYNAMIC ASPECTS OF PARTICLE CLOGGING IN THE SIMULATED VERTICAL FLOW CONSTRUCTED WETLAND USING RIVER SANDS AS SUBSTRATE

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	HYDRODYNAMIC ASPECTS OF PARTICLE CLOGGING IN THE SIMULATED VERTICAL FLOW CONSTRUCTED WETLAND USING RIVER SANDS AS SUBSTRATE
	Xie, Xiao-Long 1,2; He, Feng 1; Xu, Dong 1; Wu, Zhen-Bin 1
刊名	FRESENIUS ENVIRONMENTAL BULLETIN
	2010
卷号	19 期号:11 页码:2567-2575
关键词	VFCW substrate clogging hydraulic conductivity river sands
ISSN号	1018-4619
通讯作者	He, F, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu S Rd, Wuhan 430072, Hubei, Peoples R China ; hefeng@ihb.ac.cn, xudong@ihb.ac.cn
中文摘要	This paper introduced a simple method for evaluating and predicting the degree of clogging in simulated Vertical Flow Constructed Wetland (VFCW) based on hydraulic conductivity (k) measurement. This method was developed for better understanding of the deposition by the changes of k and the captured particles capacity in substrate void relation with both time and depth in the simulated VFCW filter bed. Additionally, in order to gain an insight into the clogging, the study put forward a VFCW hydraulic conductivity formula and then calculated the accumulated particles in filter bed according to two calculated approaches. The results showed that the most clogged location was the top layer (0-10 cm), the development of head loss in the VFCW was strongly correlated with the surface area of the captured particles from influent, the maximum change of the porosity occurred in the initial operation period, and the clogging process was progressed step by step. The paper reported the results of captured particles in filter bed void and presented an equation to calculate the predicting clogging time in VFCW.
英文摘要	This paper introduced a simple method for evaluating and predicting the degree of clogging in simulated Vertical Flow Constructed Wetland (VFCW) based on hydraulic conductivity (k) measurement. This method was developed for better understanding of the deposition by the changes of k and the captured particles capacity in substrate void relation with both time and depth in the simulated VFCW filter bed. Additionally, in order to gain an insight into the clogging, the study put forward a VFCW hydraulic conductivity formula and then calculated the accumulated particles in filter bed according to two calculated approaches. The results showed that the most clogged location was the top layer (0-10 cm), the development of head loss in the VFCW was strongly correlated with the surface area of the captured particles from influent, the maximum change of the porosity occurred in the initial operation period, and the clogging process was progressed step by step. The paper reported the results of captured particles in filter bed void and presented an equation to calculate the predicting clogging time in VFCW.
学科主题	Environmental Sciences
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	SUBSURFACE FLOW ; POROUS-MEDIA ; PERFORMANCE ; REMOVAL
收录类别	SCI
资助信息	China High Technology Research and Development Program of China [2009ZX07106-002-004]; China Natural Science Foundation [50808172]; Hubei Department of Science and Technology [2006AA305A03]; Key Projects of Wuhan City, Hubei, China [200860213022]
语种	英语
WOS记录号	WOS:000285076800014
公开日期	2011-04-14
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/15514]
专题	水生生物研究所_水环境工程研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xie, Xiao-Long,He, Feng,Xu, Dong,et al. HYDRODYNAMIC ASPECTS OF PARTICLE CLOGGING IN THE SIMULATED VERTICAL FLOW CONSTRUCTED WETLAND USING RIVER SANDS AS SUBSTRATE[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2010,19(11):2567-2575.
APA	Xie, Xiao-Long,He, Feng,Xu, Dong,&Wu, Zhen-Bin.(2010).HYDRODYNAMIC ASPECTS OF PARTICLE CLOGGING IN THE SIMULATED VERTICAL FLOW CONSTRUCTED WETLAND USING RIVER SANDS AS SUBSTRATE.FRESENIUS ENVIRONMENTAL BULLETIN,19(11),2567-2575.
MLA	Xie, Xiao-Long,et al."HYDRODYNAMIC ASPECTS OF PARTICLE CLOGGING IN THE SIMULATED VERTICAL FLOW CONSTRUCTED WETLAND USING RIVER SANDS AS SUBSTRATE".FRESENIUS ENVIRONMENTAL BULLETIN 19.11(2010):2567-2575.