干旱区生态环境知识资源中心(Arid): Vertical flow constructed wetlands for decentralized wastewater treatment in Jordan: Optimization of total nitrogen removal

Arid

DOI	10.1016/j.scitotenv.2019.03.376
	Vertical flow constructed wetlands for decentralized wastewater treatment in Jordan: Optimization of total nitrogen removal
	Nivala, Jaime 1; Abdallat, Ghidaa 2; Aubron, Thomas 1; Al-Zreiqat, Iyad 3; Abbassi, Bassim 4; Wu, Gi-Mick 5; van Afferden, Manfred 1; Mueller, Roland A.1
通讯作者	Nivala, Jaime
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	671 页码:495-504
英文摘要	The baseline performance of two full-scale vertical flow (VF) constructed wetlands operating in the arid climate of Jordan is presented in this study, within the context of the Jordanian Standards for reuse of treated wastewater. One system was a recirculating VF wetland, and the other was a single-pass two-stage VF wetland. Operational modifications were made to each treatment system, with the aim of improving Total Nitrogen (TN) removal. For the recirculating VF system, attached-growth media was added to the recirculation tank to provide increased surface area for growth of denitrifying bacteria. The modification showed a small but significant improvement in TN removal (8 mg/L less than the baseline phase; p = 0.004). Statistical analysis showed that 30% and 4.5% of the increase in compliance with the TN limits (Class A and Class B/C, respectively) could be attributed to the modification. The two-stage VF wetland was modified with a step-feeding line that introduced carbon-rich raw wastewater to the intermediate pump shaft just upstream of the second-stage filter. The modification also resulted in a small but significant improvement in TN removal (13 mg/L less than the baseline phase; p = 0.005). The increase in compliance with the TN standard due to the modification was estimated at 20% and 22% for Class A and B/C, respectively. The simple operational modifications proved to be effective for improving total nitrogen removal in arid climate VF wetland systems. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Arid climate Domestic wastewater E. coli Irrigation Recirculation Reuse
类型	Article
语种	英语
国家	Germany ; Jordan ; Canada
收录类别	SCI-E
WOS记录号	WOS:000466090500051
WOS关键词	DEVELOPING-COUNTRIES ; DESIGN ; RECIRCULATION ; ELIMINATION ; AERATION ; SYSTEM ; REUSE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218689
作者单位	1.UFZ Helmholtz Ctr Environm Res, Environm & Biotechnol Ctr UBZ, Leipzig, Germany; 2.Univ Jordan, CSS, Amman, Jordan; 3.Tech Univ Berlin, Fac Civil Engn, Dept Urban Water Management, Berlin, Germany; 4.Univ Guelph, Sch Engn, Guelph, ON, Canada; 5.UFZ Helmholtz Ctr Environm Res, DEVELOP, Leipzig, Germany
推荐引用方式 GB/T 7714	Nivala, Jaime,Abdallat, Ghidaa,Aubron, Thomas,et al. Vertical flow constructed wetlands for decentralized wastewater treatment in Jordan: Optimization of total nitrogen removal[J],2019,671:495-504.
APA	Nivala, Jaime.,Abdallat, Ghidaa.,Aubron, Thomas.,Al-Zreiqat, Iyad.,Abbassi, Bassim.,...&Mueller, Roland A..(2019).Vertical flow constructed wetlands for decentralized wastewater treatment in Jordan: Optimization of total nitrogen removal.SCIENCE OF THE TOTAL ENVIRONMENT,671,495-504.
MLA	Nivala, Jaime,et al."Vertical flow constructed wetlands for decentralized wastewater treatment in Jordan: Optimization of total nitrogen removal".SCIENCE OF THE TOTAL ENVIRONMENT 671(2019):495-504.