Research

Earth, Atmosphere & Environment Sciences

Title :

Small Scale and Sustainable Household Grey-Water Recycling (S3HWR)

Area of research :

Earth, Atmosphere & Environment Sciences

Focus area :

Urban Planning & Urban Design Urbanization & Environment Water, Sanitation and Solid waste management

Principal Investigator :

Dr. Hoysala N Chanakya, Chief Research Scientist, ASTRA / Centre for Sustainable Technologies, Indian Institute of Science (IISc), Bengaluru

Details

Executive Summary :

Small-scale sustainable household grey-water recycling (S3HWR) project attempts to evolve an intra-household (HH) greywater recycling technology suitable for India using a combination of anaerobic and aerobic systems that can function within our socio-culturally acceptable construct of water recycling. Within HH, greywater recycling systems stand best to succeed to meet emerging shortages /outages. Proven /sustainable (efficient, <1m3/d) technology options do not exist today. We combine primary anaerobic (biofilm or AnSBR), with a (1of4) femto-power aerator-ozonator /constructed wetland /microbial electrogenic cell / solar photocatalyzer based secondary treatment to remove detergents, anti-microbials and bacterial loads and make recycled water clear, odour /froth free and socio-culturally acceptable. After rigourous trials to withstand perturbations we will build intra-HH and test in situ greywater recyclers providing recycled water of <10BOD @

Co-PI:

Makarand M. Ghangrekar, Professor, Department of Civil Engineering, Indian Institute of Technology (IIT), Kharagpur

Total Budget (INR):

2,42,10,000

Organizations involved