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Decentralized Composting in Low Income Countries - Urban Land Price and Compost Value as Key Factor

Urban population is steadily increasing across the world; most recent estimates show that by 2050, 70% of the world’s population will be urban. As in low and middle income countries the organic fraction plays a major role in MSW, the feasibility of its collection and treatment in megacities across the world will become more and more an issue to be investigated.

Currently there are a few case studies in which biowaste collection and composting have been implemented on a quite relevant scale; one of those is the experience of Dhaka, Bangladesh, in which Waste Concern, a Social Business Enterprise, have set up a combined model including both a community - based decentralized composting (< 3,000 tpy) inside urban areas, and a large scale composting plant (40,000 tpy). These two main of models in place in Dhaka allow for some comparisons to be made in order to evaluate with which boundary conditions the decentralized composting solution is feasible in urban areas. We will present how two main factors, namely urban land price and the market value of the compost produced with the small scale facilities, can affect the choice between these two options, showing that the decentralized option may prove to be feasible in many megacities.

Copyright:	© European Compost Network ECN e.V.
Quelle:	Orbit 2014 (Juni 2014)
Seiten:	0
Preis:	€ 0,00
Autor:	Michele Giavini
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