Agroecological aspect of the valorization of enriched compost household fermentable refuse production: cases of the town of Tiaret (Al

Abstract

Composting is a process for the biological treatment of waste. This work consists of the valorization of the fermentable fraction of the household waste (FFOM) of the city of Tiaret by the production of enriched compost and its physicochemical characterization. In this context, 50 kg of selectively collected FFOM were composted by the Andean composting technique with mechanical turning and oxygen supply by aeration. Two enrichment treatments were applied. The first consists of the addition of ash on the waste to be compacted and the second, the addition of urea on the 25th day of the process. After two months of composting, the screening gave a mass of 2.06 kg of which, 4.12% of the initial mass. The physico-chemical analyzes concerned pH, electrical conductivity, salinity, moisture, dry matter, organic matter, mineral matter and total organic carbon. The enrichment treatments carried out also made it possible to improve the agronomic value of the compost from the category of organic amendments to that of organo-mineral fertilizers.