Study of the domestic sewage and its utilization for pisciculture along the south-west coast of Maharashtra

3^rd International Conference on Hydrology & Meteorology

September 15-16, 2014 Hyderabad International Convention Centre, India

Swapnaja A Mohite

Accepted Abstracts: Hydrol Current Res

Abstract :

Sewage, the liquid waste discharged from all domestic, municipal and industrial sources within a given area, has become a major concern especially in rural and urban areas along the coasts of India. The domestic sewage is generally released through open or closed drainage system traversing the human habitats and finally discharged in the sea. In the rural areas along the south west Maharashtra coast, the domestic sewage runs unchecked through the open drains and has become a major problem. Though the use of sewage effluent for raising fish productivity was recognised much earlier in countries like China, Taiwan, Malaysia, Thailand and Indonesia, in India this potentiality of sewage was noticed much later. Rearing of fish in sewage fed ponds has provided a new way to tackle the problem of sewage in some of the Indian states including Maharashtra. The possibility of utilizing the domestic sewage for pisciculture was studied by sampling the domestic sewage from five locations along the coast of Ratnagiri, Maharashtra, India. On an average the water parameters showed a similar trend. pH 6.5 to 7.5, Dissolved oxygen zero, Dissolved carbon dioxide 20 to 85 ppm, Free ammonia 12.0 to 62.6 ppm, Hydrogen sulphide 2.0 to 4.6 ppm, Phosphate?0.12 to 14.5 ppm, Nitrite?0 to 0.09 ppm, Nitrate?0.03 to 0.33 ppm, Alkalinity?170 to 450 ppm, Chloride-115 to 450 ppm and suspended solids?160 to 400 ppm. The sewage was collected and was subjected to sedimentation, dilution and storage. The treated water was used to study the survival and growth of Pangasius sp. and Tilapia mossambicus.

Biography :

Swapnaja A Mohite has done her PhD in Aquaculture and her subject of research was biology, ecology and culture of Paphia malabarica along the Ratnagiri coast, Maharashtra, India. She is working as a Faculty of College of Fisheries, Ratnagiri and has been working on various bivalve species. Currently she is associated with the prestigious Maharashtra Gene Bank program funded by Rajiv Gandhi Science and Technology Commission, Government of Maharashtra and is working as Principal Investigator for the project entitled ?Inventory and bio-prospecting of marine invertebrates of the Maharashtra coast with special emphasis on sponges and associated microorganisms?.