COMMUNITY LEVEL COMPOSTING OF MUNICIPAL SOLID WASTE

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RISE-AT Waste Management Factsheet 2 Community Level Composting of Municipal Solid Waste Cross-Section Through Windrow Area of Windrow that may be inhabited by fly larvae after about 5 days Figure 6 – Fly Larvae accumulate under the surface of a compost pile In order to ensure that the material from the outside is placed to the middle of the pile, a standard turning procedure should be used. Examples for both the standard windrow and the aeration tunnel piles are shown in Figures 7 –9. Note that available space around the pile is necessary when turning. Turning a windrow means that the pile is rebuilt in an adjacent windrow location, in a particular way, as shown in Figure 7. The pile can be turned by hand by a crew using spades and forks. To make the turning as easy as possible the old and new windrow positions should be close together. A gap of approximately 1m is suggested as a suitable distance. As the pile is being turned, if the compost is too dry, water should be added. The moisture content should continue to be 45-50% of the pile, and the moisture level can be checked using the technique explained in step 1. Page 14
RISE-AT Waste Management Factsheet 2 Community Level Composting of Municipal Solid Waste Figure 7 Turning Procedure for a Windrow Section Through Windrow Ready for Turning Section Through New For transverse turning Vacant Space at Side of Existing Windrow 1 1 2 2 1 3 3 2 1 4 4 3 2 1 If mechanical turning is preferred, it can be done using a bulldozer, tractor or specialized windrow turning machine. (However, costs of purchasing and maintaining these machines are high). Page 15
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COMMUNITY LEVEL COMPOSTING OF MUNICIPAL SOLID WASTE

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