Groundwater available in aquifers is one of the most important renewable natural resources. It supplies drinking water for more than 90% of the rural population. Most of the wastes from households and industries are dumped in open dumping yards. Due to this, groundwater gets polluted and quality gets deteriorated. The polluted groundwater in many areas is unfit for domestic and drinking purposes. In order to overcome this problem, many treatment methods are adopted in different parts of the world. In the present work, we have assessed the groundwater characteristics in a part of industrial city in southern India and treated the polluted groundwater by using natural bio-coagulants. We have used eco-friendly bio-coagulants such as Artocarpusheterophyllus (Jackfruit peel), Momordicacharantia (Bitter gourd seed), Musa paradisiaca (Banana flower leaf) and Cynodondactylon (Scutch grass). These coagulants are effective in removing the turbidity and maintaining the pH of the water. In addition, these natural coagulants reduce BOD, COD and salt content. After treatment, the groundwater can be used for domestic purposes. As it is a cost- effective and eco-friendly method it can be afforded by large population.
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