SEASONAL VARIATION IN GREYWATER QUALITY FOR A REAL LIFE SYSTEM

Maitreyee M. Tilve

Abstract: Greywater is a wastewater generated in a house except toilet and kitchen wastewater. It is grossly contaminated but reuse and recycling is possible in water scarcity areas but greywater couldn’t use for drinking purpose. To know the quality of greywater in various seasons specific parameters have to be checked i.e. pH, Acidity, Alkalinity, Hardness, Conductivity, Turbidity, BOD and COD according to “Standard Methods for determining water and wastewater quality, 2000”. Greywater generation from a house contributes 59 % from bath, basin and shower, and 41 % from laundry wastewater. Characteristics of greywater changes due to the number, age, lifestyle, health status and water usage pattern of occupants. In this paper, seasonal variation in quality of greywater will be shown. Here, greywater is mainly used for toilet flushing and gardening purpose. Greywater should be colorless, odorless and should not be acidic. So to get idea of greywater quality, continuous evaluation and proper maintenance is required.

Keywords: Greywater quality, seasonal variation, parameters

DOI: https://doi.org/10.15623/ijret.2014.0315145