Study of the Feasibility of Guts Waste Valorization by Composting

The treatment of industrial waste constitutes an enormous challenge for Moroccan companies that have to comply with the regulations in force, specifically the Law 28-00 concerning waste disposal and management (2006). Boyauderie El Amal is among the companies striving to turn the challenge of waste management into an opportunity by composting the waste to enhance their operations' efficiency. This approach eliminates the need to pay for waste treatment at the Beni Mellal controlled landfill. In this context a hot composting experiment has been carried out in 2014 with a mixture of three waste fractions; guts 50%, manure 30% and dead leaves 20%. The experiment has shown that the resulting compost has a high-level organic substance content and a minor salt content that can be a healthy soil amendment. However, the experiment did not evaluate the compost mass evolution during 45 days of the mechanism. The main aim of this work tries to improve the performance of valorization by reducing the duration of composting, evaluating its economic efficiency (monitoring of mass), and improving the qualitative efficiency. To this effect, the feasibility study aims to rapidly compost a mixture of 50% underground guts waste and 50% manure over a period of 23 days. The results proved that the C/N rate and electrical conductivity of the compost obtained is above the limits requested by most standards. Moreover, the temperature recorded of the heap did not exceeded 39.53 °C at all days of composting. Nevertheless, the economic efficiency had reached 47.9%.