干旱区生态环境知识资源中心(Arid): Improving the quality of stabilization pond effluents using hybrid constructed wetlands

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DOI	10.1016/j.scitotenv.2021.149615
	Improving the quality of stabilization pond effluents using hybrid constructed wetlands
	Omidinia-Anarkoli, Tayebeh; Shayannejad, Mohammad
通讯作者	Shayannejad, M (corresponding author), Isfahan Univ Technol, Dept Water Engn, Coll Agr, Esfahan 8415683111, Iran.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	801
英文摘要	Water shortage and excessive use of water resources in arid and semi-arid regions, such as Iran, highlights the importance of using treated wastewater, especially for the highly demanding agricultural sector. Constructed wetlands (CWs) are among green technologies that offer an efficient and cost-effective wastewater treatment. This study investigates the complementary treatment of effluent from the Fooladshahr wastewater treatment plant, Isfahan, Iran, using pilot-scale CWs with horizontal (H-CW) and horizontal-vertical flow (HV-CW). The performance of two substrates, pumice and gravel, and the effect of using plants (Phragmites australis) was compared. Maximum removal efficiencies of total suspended solids (TSS) and biochemical oxygen demand (BOD5) were observed in the case of unplanted and planted HV-CW with pumice bed, respectively. In the case of gravel bed, planted H-CWs demonstrated maximum chemical oxygen demand (COD) removal efficiency. The highest mean outflow concentrations for TSS, BOD5 and COD were obtained in unplanted H-CW with pumice bed, likely due to shorter retention times compared to HV-CWs, as well as due to the absence of plants providing the required physicochemical and biological conditions for high performance treatment. Phosphate (PO43-) removal efficiency demonstrated seasonal dependency, where the highest values were obtained in warm seasons. In the case of fecal coliforms (FC), no significant differences were observed between the studied HV-CWs during the whole study period. Based on our results, planted H-CW with gravel bed provided an optimum removal efficiency while requiring a smaller footprint and lower expenditure than HV-CWs. This study demonstrates the application of CWs as an affordable solution for treating domestic wastewater for various reuse application in developing countries with water crisis, such as Iran. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Pumice Gravel Phragmites australis Phosphate seasonal variation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000701725600009
WOS关键词	WASTE-WATER TREATMENT ; PHOSPHORUS REMOVAL ; LANDFILL LEACHATE ; TYPHA-LATIFOLIA ; LAB-SCALE ; PERFORMANCE ; NITROGEN ; MEDIA ; REUSE ; PLANTS
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/2XILL650/364597
作者单位	[Omidinia-Anarkoli, Tayebeh; Shayannejad, Mohammad] Isfahan Univ Technol, Dept Water Engn, Coll Agr, Esfahan 8415683111, Iran
推荐引用方式 GB/T 7714	Omidinia-Anarkoli, Tayebeh,Shayannejad, Mohammad. Improving the quality of stabilization pond effluents using hybrid constructed wetlands[J],2021,801.
APA	Omidinia-Anarkoli, Tayebeh,&Shayannejad, Mohammad.(2021).Improving the quality of stabilization pond effluents using hybrid constructed wetlands.SCIENCE OF THE TOTAL ENVIRONMENT,801.
MLA	Omidinia-Anarkoli, Tayebeh,et al."Improving the quality of stabilization pond effluents using hybrid constructed wetlands".SCIENCE OF THE TOTAL ENVIRONMENT 801(2021).