Author(s): Saraosh Alam Ghausi, Mohd Muzzammil, Javed Alam
Linked Author(s): Sarosh Alam Ghausi
Keywords: Grey water, aeration, hydroelectricity, industrialization, reservoir.
Abstract: Water is the life sustaining resource present on earth. Rising population, extensive use, increasing water demand, depleting ground water tables and decreasing water availability have forced the researchers and policy makers to find an alternative source for proper optimization of this life sustaining resource. Water sources available are surface water, ground water and rain water. Fast growing industrialization has already caused enough damage to fresh surface water sources. Rainfall behavior is uncertain and non-homogeneous and can�t be relied to fulfill constantly increasing water demand and heavy reliance on ground water is leading to gradual depletion of water table. Thus in this scenario, grey water reuse is an efficient alternative to be used as a water source. Grey water is wastewater generated from domestic activities such as laundry, dishwashing, and bathing. Depending on the type of grey water and its level of treatment, it can be reused for various purposes like irrigation, flushing, floor washing, watering gardens, automobile washing etc. Studies have suggested that recycling grey water can save up to 70% of fresh water consumption. Instead of mixing it with sewage, grey water can be stored in big reservoirs, ponds having provisions of required aeration and it could efficiently serve as an alternate water resource. This stored water can be used for variety of purposes. If stored in large amount with sufficient head it could also be used in generation of hydro-electricity. The present study presents an idea in which grey water can be used to generate hydroelectricity in high rise buildings, present a model of a treatment tank along with overview of the use of grey water globally, discussing different ways and ideas in which it can be used efficiently and economically
Year: 2017