Removal of iron and manganese from drinking water supply

The water treatment plant at the Hingna industrial area receives raw water from Ambazari Lake and supplies drinking water to industrial area, after conventional treatment. The treated water was found to have a pungent odour and yellow colour, which in turn changed from a brown to black precipitate....

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Bibliographic Details
Published in:Sustainable water resources management 2015-06, Vol.1 (2), p.157-165
Main Authors: Khadse, G. K., Patni, P. M., Labhasetwar, P. K.
Format: Article
Language:English
Subjects:
Development Economics
Earth and Environmental Science
Earth Sciences
Hydrogeology
Hydrology/Water Resources
Original Article
Sustainable Development
Water Policy/Water Governance/Water Management
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Summary:The water treatment plant at the Hingna industrial area receives raw water from Ambazari Lake and supplies drinking water to industrial area, after conventional treatment. The treated water was found to have a pungent odour and yellow colour, which in turn changed from a brown to black precipitate. The water becomes aesthetically unacceptable to consumers. It was observed that a blackish precipitate formation was due to the presence of iron and manganese in lake water, which was not completely removed during treatment. To remove iron and manganese from drinking water, treatment studies were carried out with chlorine and KMnO 4 as oxidants. Alum and lime were added for coagulation and pH correction. Jar test studies revealed that treatment with potassium permanganate at pH 7.7–8.0 was effective in the removal of iron, manganese and organics, which were responsible for causing colour and odour to water. The studies helped in improvements in water quality for safe drinking water supply.
ISSN:2363-5037
2363-5045
DOI:10.1007/s40899-015-0017-4