Can constructed wetlands be more land efficient than centralized wastewater treatment systems? A case study based on direct and indirect land use

doi:10.1016/j.scitotenv.2020.144841

	Can constructed wetlands be more land efficient than centralized wastewater treatment systems? A case study based on direct and indirect land use
	Fan, Ying 5; Wu, Xudong 1,5; Shao, Ling 2; Han, Mengyao 3; Chen, Bin 1; Meng, Jing 4; Wang, Ping 5; Chen, Guoqian 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-05-20
卷号	770 页码:10
关键词	Constructed wetland Wastewater treatment Land use Systems process analysis
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.144841
通讯作者	Wang, Ping(wangping@pku.edu.cn) ; Chen, Guoqian(gqchen@pku.edu.cn)
英文摘要	Compared with centralized wastewater treatment systems, constructed wetlands are generally regarded as not suitable for wide deployment due to the comparatively larger direct land area. Much of the traditional thinking is based on an onsite perspective, while the offsite information is left out. By a comparative case study with systems accounting of both onsite and offsite land use, this study questioned the traditional picture and found that constructed wetlands can bemore land use efficient than centralized wastewater treatment systems. On a unit of wastewater treated basis, the land use induced by a typical constructed wetland in China is revealed to be less than half of that by the case of a centralized wastewater treatment plant or a hybrid system. On a unit removal basis for biological oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solid (TSS) and ammonia-nitrogen (NH3-N), the land use induced by a constructed wetland is only around 61%, 67%, 73% and 64% of that by a centralized wastewater treatment system, respectively. Meanwhile, the indirect effect is demonstrated to be significant for these three systems: this magnitude amounts to three times the direct land occupation for a constructed wetland, and one order of magnitude higher of that for the a centralized wastewater treatment system. By a scenario analysis for China in 2017, it is preliminarily estimated that over two billion square meters of land use could be reduced if all the centralized wastewater treatment systems are replaced by constructed wetlands. The outcome may serve a benchmark and offers a new way of thinking for management of wastewater treatment systems. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11802032] ; Fundamental Research Funds for the Central Universities[2019ZY34] ; Fundamental Research Funds for the Central Universities[2019BLRD05] ; Beijing Forestry University Outstanding Young Talent Cultivation Project[2019JQ03002] ; Young Talent Supporting Engineering of China Association for Science and Technology[2019-2021QNRC001]
WOS关键词	GREENHOUSE-GAS EMISSIONS ; COMBINED SEWER OVERFLOW ; LIFE-CYCLE ASSESSMENT ; NONRENEWABLE ENERGY-COST ; CONTAMINANT TRANSPORT ; SUBSURFACE-FLOW ; WORLD-ECONOMY ; CHINA ; POWER ; SCALE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000627896100052
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Beijing Forestry University Outstanding Young Talent Cultivation Project ; Young Talent Supporting Engineering of China Association for Science and Technology
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162002]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Ping; Chen, Guoqian
作者单位	1.Peking Univ, Coll Engn, Lab Syst Ecol & Sustainabil Sci, Beijing 100871, Peoples R China 2.China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Univ Cambridge, Dept Land Econ, Cambridge CB3 9DT, England 5.Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Fan, Ying,Wu, Xudong,Shao, Ling,et al. Can constructed wetlands be more land efficient than centralized wastewater treatment systems? A case study based on direct and indirect land use[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,770:10.
APA	Fan, Ying.,Wu, Xudong.,Shao, Ling.,Han, Mengyao.,Chen, Bin.,...&Chen, Guoqian.(2021).Can constructed wetlands be more land efficient than centralized wastewater treatment systems? A case study based on direct and indirect land use.SCIENCE OF THE TOTAL ENVIRONMENT,770,10.
MLA	Fan, Ying,et al."Can constructed wetlands be more land efficient than centralized wastewater treatment systems? A case study based on direct and indirect land use".SCIENCE OF THE TOTAL ENVIRONMENT 770(2021):10.