Projecto de produção de composto orgânico a partir dos resíduos sólidos orgânicos domésticos

Abstract

In recent years, there has been population growth in the cities of Mozambique and also an increase in the production of solid waste, in a certain way has harmed the environment. There are several means that are used for management of these wastes, one of the important management processes and the treatment to be given to waste. Composting appears as one of the solutions that can be used to improve the management (treatment) of organic solid waste, recycling the matter organic. The present work has as its general objective the execution of a production project of organic compost from domestic organic solid waste, identifying its parameters that affect the process and its effectiveness in producing it. THE The methodology for evaluating the measured parameters was comparative and deductive. The data of the parameters (humidity, temperature, pH) were observed in 14 weeks. The results obtained revealed that in the systems the measured parameter data were completely different from those expected, the temperatures reached did not reach the 50°C in both systems, but the three phases (mesophyll, thermophile and mesophyll) only in one of the systems (Buckets), the humidity reached below 40 % which is considered a range below the necessary conditions for good composting and then reached the necessary values. pH values ​​in systems started the process in the acidic state (4.5), with increasing temperatures they reached reach the alkaline state. Although different values ​​were observed from the expected in the composting process, the systems proved to be efficient for small-scale production (NOSSA TRADUÇÃO).