Collecting and composting food residuals

The end products of two different technologies for the processing of waste including food items, bottles, cans and plastic bags, the aerated static pile (ASP) and aerated turned windrow (ATW), are compared. The ATW composts have lesser density, more moisture holding capacity and low particle size, and the nutritional levels varied with the type of material used. In the ASP piles, the nutritional contents are not affected, probably due to the insulative cover, but the products obtained have physical characteristics that are not very good.