Sunday, January 22, 2012

Decentralized Solid Waste Management

Waste is one of the rising issues in the world which is compulsory to manage, yet difficult. Developed countries talk about high technological solutions such as anaerobic digestion and turning waste into energy. However, they are unimaginably expensive for under-developed and developing countries with sparse budget.

Nepal, in this context, is adopting decentralized waste management system. ENPHO has been supporting, through its various programmes, low cost approaches. Managing biodegradable waste via composting is one of the options experimented at Butwal, Bardaghat and Biratnagar which is operated in low cost and can be managed through locally available materials.

For the compost of best quality, C:N ratio should be managed in the compost. Mostly wooden dust is used as carbon supplement, ash for phosphorus and animal excreta for nitrogen. The success of composting, however, depends on the market availability, business models and strong public-private partnerships.



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