干旱区生态环境知识资源中心(Arid): Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape

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DOI	10.1016/j.watres.2018.10.040
	Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape
	Sonkamble, Sahebrao 1; Sahya, Ashalata 2; Jampani, Mahesh 3,4; Ahmed, Shakeel 1; Amerasinghe, Priyanie 5
通讯作者	Sonkamble, Sahebrao
来源期刊	WATER RESEARCH
ISSN	0043-1354
出版年	2019
卷号	148 页码:176-187
英文摘要	Natural wetlands are green infrastructure systems that are energy-efficient for wastewater treatment and can be found in diverse geo-environmental settings around the world. Their structure and functions, which defines the treatment efficiencies are highly varied. Wetlands over shallow bedrock and geological lineaments (weak zones) have been known to contribute to groundwater contamination. However, not many studies have been performed to understand the structure in different geological settings to identify the efficiency determining factors. Therefore, it is important to investigate the geological suitability of the natural wetlands. We examined wastewater fed natural wetlands in diverse geological settings aiming at studying the depth, geo-stability, bio-chemical interactions, and hydrogeological attributes that improve the wastewater quality, within the Musi River basin, India. The integrated geophysical scans encompassing electrical resistivity tomography (ERT), hydrogeological test, bathymetric study and hydro chemical analysis were carried out to explore the physical structure and hydro-dynamic processes in the wetlands. ERT investigations showed that, the depth to bedrock up to 20-25 m devoid of geo-fractures (lineaments) indicated the effective depth of saturated zone as a passable scope for potential bio-chemical interactions, implying the proportionality of the deep seated (deep bedrock) wetland to the pollutant removal efficiency. The lower order of electrical resistivity range 10-35 Omega m and hydraulic conductivity 2.938 md(-1) acquired for saturated weathered zone were found catalyzing the bioremediation, sedimentation, adsorption, redox reactions and ion exchange processes. It caused the deep seated wetland removing nitrate 194.34 kgd(-1) (97.18%); sulphate 333.75 kgd(-1) (77.70%); phosphate 9.66 kgd(-1) (82.53%); microbes 99.99%, BOD 80%, and COD 80% load with discharge 1408 m(3)d(-1) of treated wastewater. Further, the strategies for designating the natural wetlands as wastewater treatment systems are also discussed in this paper. (C) 2018 Elsevier Ltd. All rights reserved.
英文关键词	Wetland efficiency Electrical resistivity tomography Hydrogeological suitability Pollutant removal capacity Musi river Southern India
类型	Article
语种	英语
国家	India ; Germany ; Sri Lanka
收录类别	SCI-E
WOS记录号	WOS:000452931600018
WOS关键词	CONSTRUCTED WETLANDS ; ELECTRICAL-RESISTIVITY ; SYSTEM ; FLOW ; INVERSION ; SELECTION ; EFFLUENT ; REMOVAL
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219267
作者单位	1.CSIR Natl Geophys Res Inst, Uppal Rd, Hyderabad 500007, Telangana, India; 2.Osmania Univ, Dept Environm Sci, Hyderabad 500007, Telangana, India; 3.United Nations Univ, Inst Integrated Management Mat Fluxes & Resources, Ammonstr 74, D-01067 Dresden, Germany; 4.Tech Univ Dresden, Inst Groundwater Management, D-01069 Dresden, Germany; 5.Int Water Management Inst, 127 Sunil Mawatha, Pelawatte, Battaramulla, Sri Lanka
推荐引用方式 GB/T 7714	Sonkamble, Sahebrao,Sahya, Ashalata,Jampani, Mahesh,et al. Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape[J],2019,148:176-187.
APA	Sonkamble, Sahebrao,Sahya, Ashalata,Jampani, Mahesh,Ahmed, Shakeel,&Amerasinghe, Priyanie.(2019).Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape.WATER RESEARCH,148,176-187.
MLA	Sonkamble, Sahebrao,et al."Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape".WATER RESEARCH 148(2019):176-187.