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Groundwater Recharge in Jakkur Lake: Possibilities and Risks of Sewage Water Reuse
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
2013 (English)Student paper other, 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The aim of this project is to study the nitrate levels of the treated water flowing into Jakkur Lake in Bangalore, from the treatment plant situated at the inlet to the lake, and thereby evaluate the function of the lake as for secondary and tertiary wastewater treatment as well as an infiltration basin. Obtained nitrate levels are used as indicators to study the wastewater flow in the lake, and to find other possible inflows of sewage which can affect the lakes’ total treatment efficiency. A literature study is done on wetlands and on groundwater recharge through infiltration basins, and the possibility of recharging groundwater below Jakkur Lake is evaluated. Water samples are collected around and in the lake and the samples are tested for nitrate, pH and total dissolved solids. Extra focus is put on research on nitrates in water.The risks of groundwater recharge in Jakkur Lake include pollution of wells by bacteria, viruses, parasites and traces of medicine. Further geotechnical investigations need to be pursued mainly on the soil structure under and around the lake, and studies need to be performed on the retention time of the water in the lake. The technical limitations such as fluctuations in efficiency and pollutant migration must be minimized, which initially could be done by building a constructed wetland and controlling the inflow to the lake.

Place, publisher, year, edition, pages
2013. , 19 p.
Keyword [en]
Ecology, environmental engineering, water treatment, water supply, minor field study
National Category
Water Treatment
URN: urn:nbn:se:uu:diva-208989OAI: oai:DiVA.org:uu-208989DiVA: diva2:655584
Educational program
Master Programme in Environmental and Water Engineering
Available from: 2015-12-18 Created: 2013-10-12 Last updated: 2015-12-18Bibliographically approved

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Sjöholm, Pia
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