A Literature Review on Integrated Approach for Grey Water Treatment

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A Literature Review on Integrated Approach for Grey Water Treatment

Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 4

Abstract

Water is critical for all life on the planet. Rapid industrialization and urbanization has caused India to face a water crisis since it has only 4 percent of the world’s water resources. In order to resolve the crisis, India has to look for alternative water resources which may include rainwater harvesting, grey water and sewage reuse and desalination. Grey water is defined as waste water generated from the bathroom, laundry and kitchens. Nearly 70 percent of the water used in households results in grey water which can be treated using simple technology and reused. Reuse of grey water reduces the fresh water requirements and reduces the amount of sewage sent to treatment plants. An integrated approach is needed to manage the water and waste water treatment so that water supply is kept clean and waste water is recycled for beneficial use in agriculture and industry. An integrated grey water treatment plant was developed to treat grey water generated in the Shrirampur gram panchayat area. The developed laboratory scale integrated model consist of screening, sedimentation, filter-I, filter-II, aeration and disinfection units, which is a combination of natural physical operations. The Shrirampur gram panchayat is one of the well-developed gram panchayat and bagged Vikas ratna Award at the hands of President of India in paryavaran santulit samruddha gram yojna. The area was divided in three zones for the present study. The major zones of the area such as Gokul Residency (Zone-I), Green Park-I (Zone-II) and Amar Nagar (Zone-III) were taken for the present study. The 564 random samples were collected from kitchen and bathroom considering sources of supply as tap water and borewell water in spring, winter and summer seasons. The overall performance of the laboratory scale integrated plant for treatment of kitchen and bathroom grey water considering source of supply as tap water & borewell water in spring, winter & summer season was excellent, producing very high quality effluents. The percentage removal efficiency of pollutant was found better for the sample collected in winter season than spring and summer seasons. The performance was showed in terms of reduction competency of water pollutants such as COD (84%), BOD (92%), Coliform (98%), TSS (87%), TDS (76%), Turbidity (64%) and Total hardness (70%). This treatment technology can be considered as a viable alternative to conventional treatment plant in rural region.

Authors and Affiliations

R. T. Pachkor, Dr. D. K. Parbat

Keywords

Grey water fresh water waste water treatment tap water and bore well water

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