Obtaining Biofertilizer by Composting Vegetable Waste, Sewage Sludge and Sawdust

Abstract

Municipal waste is a growing concern in the world through the large quantity produced every year, the environmental problems and the costs of their storage. Composting is a technique frequently used to recycle a large variety of organic by-products transforming them into fertilisers useful for the soil. Monitoring different physical-chemical parameters showed the effect of the substrate on the microbiological activity and on the formation of the final compost. The purpose of this study was to analyze the steps of the organic matter biodegradation during composting and to establish the most important parameters of the composting process.