DOI: 10.1016/j.watres.2018.10.040
Scopus记录号: 2-s2.0-85055277616
论文题名: Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape
作者: Sonkamble S. ; Sahya A. ; Jampani M. ; Ahmed S. ; Amerasinghe P.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 148 起始页码: 176
结束页码: 187
语种: 英语
英文关键词: Electrical resistivity tomography
; Hydrogeological suitability
; Musi river
; Pollutant removal capacity
; Southern India
; Wetland efficiency
Scopus关键词: Bioremediation
; Chemical analysis
; Chemical stability
; Electric conductivity
; Energy efficiency
; Groundwater
; Groundwater pollution
; Hydrochemistry
; Ion exchange
; Redox reactions
; Storm sewers
; Structural geology
; Sulfur compounds
; Wastewater treatment
; Wetlands
; Electrical resistivity tomography
; Geophysical characterization
; Groundwater contamination
; Hydrogeological
; Pollutant removal
; Pollutant removal efficiency
; Southern India
; Wastewater treatment system
; Nitrogen removal
; dissolved oxygen
; ground water
; nitrate
; phosphate
; phosphorus
; sulfate
; bedrock
; efficiency measurement
; electrical resistivity
; energy efficiency
; hydraulic conductivity
; hydrogeology
; infrastructure
; irrigation system
; performance assessment
; pollutant removal
; semiarid region
; tomography
; wastewater
; wastewater treatment
; wetland
; adsorption
; aquifer
; Article
; biochemical oxygen demand
; bioremediation
; chemical interaction
; chemical oxygen demand
; coliform bacterium
; colony forming unit
; comparative study
; electric resistance
; environmental impact assessment
; evapotranspiration
; fecal coliform
; geology
; hydraulic conductivity
; hydrodynamics
; hydrology
; India
; ion exchange
; irrigation (agriculture)
; nonhuman
; oxidation reduction reaction
; plate count
; river basin
; sedimentation
; sulfate reducing bacterium
; thermostability
; waste component removal
; waste water management
; water pollutant
; water pollution control
; water quality
; wetland
; India
; Musi River
; Telangana
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 Ωm 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 m3d-1 of treated wastewater. Further, the strategies for designating the natural wetlands as wastewater treatment systems are also discussed in this paper. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122217
Appears in Collections: 气候变化事实与影响
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作者单位: CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad, 500007, India; Department of Environmental Science, Osmania University, Hyderabad, 500007, India; United Nations University, Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES), Ammonstraße 74, Dresden, 01067, Germany; Technische Universität Dresden, Institute for Groundwater Management, Dresden, 01069, Germany; International Water Management Institute, 127 Sunil Mawatha, Pelawatte, Battaramulla, Sri Lanka
Recommended Citation:
Sonkamble S.,Sahya A.,Jampani M.,et al. Hydro-geophysical characterization and performance evaluation of natural wetlands in a semi-arid wastewater irrigated landscape[J]. Water Research,2019-01-01,148