Maturity and stability assessment of composted tomato residues and chicken manure using a rotary drum bioreactor

The efficiency of the composting process for tomato residues and chicken manure was estimated after monitoring rotary system. Physicochemical parameters Compost Quality Index were evaluated. (leaves, stems, some green damaged fruits) collected, cut into small pieces, moistened approximately (60–65%), mixed with 20% then distributed three drum bioreactors. obtained results showed that, temperature above 50°C maintained more than two days. Carbon: nitrogen (C:N) ratio reduced from 30:1 to 19.13:1. pH value ranged between 7 8.80 during process, while electrical conductivity (EC) 2.67 4.53 dS/m. Both compost quality (Dewar germination index) (Solvita-CO2 Solvita-NH3) indicated final is stable mature.Implications: idea this research revolves around assessing maturity stability resulting mixing manure, using a bioreactor which characterized by reducing time active phase several hours or days instead weeks months. Several tests related mixture have been used judge its quality. Also, many topic monitored discussed previous researches determine importance benefiting different wastes together obtaining good fertilizer ready application as an agricultural substrate soil conditioner.