干旱区生态环境知识资源中心(Arid): A multi-functional nature-based solution (NBS) for greywater treatment and reuse at the same plot

Arid

DOI	10.1016/j.ecoleng.2023.106952
	A multi-functional nature-based solution (NBS) for greywater treatment and reuse at the same plot
	Rahman, Khaja Zillur; Al Saadi, Shamsa; Al Rawahi, Mohammed; Knappe, Jan; van Afferden, Manfred; Moeller, Lucie; Bernhard, Katy; Mueller, Roland A.
通讯作者	Rahman, KZ
来源期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
EISSN	1872-6992
出版年	2023
卷号	191
英文摘要	Water stress is destined to worsen due to rapid urbanization, high population growth as well as huge water demand and climate change in the upcoming days. To make the cities more water resilient, greywater treatment and reuse can be a sustainable solution to prevent discharge of greywater into the environment and reduce the import of freshwater into the cities. The aim of this study was to investigate the feasibility of implementing a multi-functional nature-based solution (NBS) for decentralized greywater treatment and reuse at the same plot. Therefore, an aerated vertical-flow constructed wetland (AVFCW) with a design capacity of 8 PE (population equivalent) was combined with an innovative cover layer on top, so that the wetland surface can be used wisely (saving space) for irrigation with the treated effluent as well as protect the constructed wetland from high water loss due to evapotranspiration (EVT). In the first investigation phase, the results showed that applying such a cover layer on the wetland surface did not have any influence on the treatment performance of the AVFCW operating at the BDZ-Research and Demonstration Centre for Decentralized Wastewater Treatment in Leipzig, Germany. The results from the second investigation phase showed a highly efficient treatment performance of the AVFCW system (BOD5 > 90%, COD>93%, TSS > 93%, TN > 60% and log-removal for E.coli of 0.81 +/- 0.45) when feeding with synthetic greywater at the site. In the effluent from the AVFCW, the mean concentrations of BOD5, TSS and E.coli were found to be as 9 +/- 5 mg/L, 4 +/- 2 mg/L and 7.0 +/- 5.4 MPN/100 mL, respectively, and the achieved results were in compliance with the EU recommended limits for the most restrictive Class A standard treated water quality (BOD5 < 10 mg/L; TSS < 10 mg/L; E.coli < 10 MPN/100 mL) for agricultural irrigation. Soil characteristics data at the depth of 10, 15 and 20 cm within the cover layer showed no remarkable effect of irrigation with treated effluent on the soil properties. Overall, this study demonstrated that the inte-grated and multi-functional NBS can be implemented as a more practical and attractive technology for greywater treatment and reuse (via sub-surface irrigation) at the same plot and can improve the aesthetic in urban set-tlements (e.g. backyard garden of the urban households, public park, roadside and touristic areas) as well as in warm climatic conditions of arid/semi-arid regions worldwide.
英文关键词	Aerated constructed wetland Cover layer Decentralized treatment Greywater Wastewater Reuse
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000955576700001
WOS关键词	WASTE-WATER TREATMENT ; FLOW CONSTRUCTED WETLANDS ; GREY-WATER ; ARTIFICIAL AERATION ; MICROBIAL QUALITY ; MANAGEMENT ; PERFORMANCE ; IRRIGATION ; NITROGEN ; LESSONS
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395903
推荐引用方式 GB/T 7714	Rahman, Khaja Zillur,Al Saadi, Shamsa,Al Rawahi, Mohammed,et al. A multi-functional nature-based solution (NBS) for greywater treatment and reuse at the same plot[J],2023,191.
APA	Rahman, Khaja Zillur.,Al Saadi, Shamsa.,Al Rawahi, Mohammed.,Knappe, Jan.,van Afferden, Manfred.,...&Mueller, Roland A..(2023).A multi-functional nature-based solution (NBS) for greywater treatment and reuse at the same plot.ECOLOGICAL ENGINEERING,191.
MLA	Rahman, Khaja Zillur,et al."A multi-functional nature-based solution (NBS) for greywater treatment and reuse at the same plot".ECOLOGICAL ENGINEERING 191(2023).