MUNICIPAL SOLID WASTE MANAGEMENT IN CHENNAI CITY, INDIA

Municipal Solid Waste includes commercial and residential wastes generated in municipal or notified areas, in either solid or semi-solid form excluding industrial hazardous wastes, but including treated bio-medical wastes (MoEF, 2000). The quality and quantity of MSW generated by a particular community will vary according to their socio-economic status, cultural habits, urban structure, population and commercial activities. Asian countries are facing MSWM problems due to the rapid growth in MSW generation rate. The total quantity of waste generated by 23 metro cities in India was 30,000 tpd in 1999, which has increased considerably to about 52,000 tpd (Inance et al, 2004).

Municipal Solid Waste Management (MSWM) is a challenging problem for developing countries. Municipal Solid Waste (MSW) generation in Chennai, the fourth largest metropolitan city in India, has increased from 600 to 3500 tons per day (tpd) within 20 years. The highest per capita solid waste generation rate in India is in Chennai (0.6 kg/d). Chennai is divided into 10 zones of 155 wards and collection of garbage is carried out using door-to-door collection and street bin systems. The collected wastes are disposed at open dump sites located at a distance of 15 km from the city. Recent investigations on reclamation and hazard potential of the sites indicate the need for the rehabilitation of the sites. Chennai is the first city in India to contract out MSWM services to a foreign private agency- ONYX, a Singapore based company. The scope of privatization includes activities such as sweeping, collection, storing, transporting of MSW and creating public awareness in three municipal zones. ONYX collects about 1100 Metric tons of waste from three zones per day and transports it to open dumps. Various Community Based Organizations (CBO) are also involved in the MSWM of the city. A high rate biomethanation plant for power generation is in operation at the Koyembedu market. Total cost for street sweeping, collection and transportation per Metric ton of waste by Corporation of Chennai (CoC) and Onyx is approximately USD 33 and 25, respectively.

Copyright:	© IWWG International Waste Working Group
Quelle:	Specialized Session C (Oktober 2007)
Seiten:	9
Preis inkl. MwSt.:	€ 9,00
Autor:	S. Esakku A. Swaminathan O.P. Karthikeyan Joseph Kurian K. Palanivelu

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