All the methods, except incineration, facilitate recovery of secondary by-products such as manure, biogas, fat, bone and meat meal etc. while disposing the wastes in an environmentally sound manner.

Composting facility requires no initial investment. Once the compost system comes into operation, it produces manure, which is good soil conditioner. Biomethanation is admirably suited for the slaughter house waste to generate methane gas, which can be utilised for water heating, boiler or power generation and the manure of much greater fertilising value than ordinary compost. Fat and bone and meat meal obtained from rendering of animal matter also has varieties of commercial usage.

Adoption of above methods for solid waste management will improve sanitation in and around slaughter houses and it is beneficial to the slaughter houses in long run due to returns on account of recovery and use or sale of the secondary by-products.

REFERENCES

Annual Report 2000-2001; Department of Animal Husbandry and Dairying, Ministry of Agriculture, Govt. of India, New Delhi; p13.

Comprehensive Industry Document: Slaughter house, meat and seafood processing industry; COINDS/38/1992; Central Pollution Control Board, Delhi; pp 34-39.

Indian Standard : 8895-1978, Guidelines for handling, storage, and transportation of slaughter house by-products; Bureau of Indian Standard, New Delhi.

Indian standard: 4393-1997, Basic Requirement for an Abattoir; Bureau of Indian Standards, New Delhi.

Techno-economic Feasibility Report for Modernization of Slaughter House at Idgah (1990); Municipal Corporation of Delhi, Delhi; pp 32-33.

Bio-Energy News, Vol. 5, No. 1, March 2001; National Bio-Energy Board, Ministry of Non-Conventional Resources, Govt. of India, New Delhi; pp 7-11.

Proceedings of the Workshop on 'High rate biomethanation treatment of abattoir wastes' (2000), prepared and published by Central Leather Research Institute, Chennai and Ministry of Non-conventional Energy Sources, Govt. of India, New Delhi; pp 7-14.