Suchergebnisse

Poultry manure is known as source of bacterial pathogens which decrease its direct application as fertilizer on agricultural land. The co-composting with carbonation lime of sugar factory was tested to valorize poultry manure. The evolution of physicochemical and microbiological parameters describing the composting of a mixture of poultry manure, municipal organic wastes and carbonation lime was monitored. The influence of carbonation lime addition on composting of poultry manure was determined. Three different mixtures were composted. The results showed the same evolution of the temperature and organic matter loss for all tests. The final products have C/N ratios (10.6–10.9) and pH values (7.3–7.8) within the standard. In addition, the monitoring of the microbial population (total coliforms, fecal coliforms and fecal streptococci) during the composting process showed that the produced composts are mature and hygienic. Based on the finding obtained, the addition of carbonation lime to poultry manure further improves its composting.