The correct separation of organic waste allows it to be used in composting, while reject materials that are not yet ready for this process can return to the treatment cycle. This significantly reduces the final disposal destined for landfills. The waste for composting can come from various sources, such as industrial, rural, and metropolitan areas, often contaminated or inappropriate in size and shape. These materials need to go through screening and classification systems to eliminate impurities and separate the products that are not yet compostable. When organic waste is incorrectly deposited in open dumps, accumulating dirt and insects, it causes serious environmental problems. The resulting leachate contaminates the groundwater and the methane gas released is 23 times more harmful than carbon dioxide. The National Solid Waste Policy Law (No. 12,305, of August 2, 2010) was created to combat these problems, promoting the replacement of dumps with landfills. However, the implementation of landfills faces difficulties due to high costs. As a more economical alternative, composting emerges as a viable solution for the treatment of organic waste. This biological decomposition process allows the reuse of organic waste, avoiding its accumulation and providing fertilizer for the soil. Composting offers numerous environmental and financial benefits: - Does not release methane gas, extremely harmful to the environment. - Reduces the volume of waste destined for landfills, saving disposal costs. - Saves on effluent treatment. - Reuses organic waste, producing high-quality fertilizer. - Eliminates pathogens due to the high temperatures reached during the process. Traditionally, composting uses materials of agricultural origin, which are generally free of contaminants and, when composted correctly, produce high-quality organic fertilizers for agricultural use. The process can be carried out in any climatic zone, and organic waste from landfills reduces greenhouse gas emissions, improving soil fertility by increasing humus content. Currently, compost can be produced from other organic sources, such as waste from agricultural and food industries, which vary in the carbon/nitrogen ratio (C/N). Residues from horticulture, arboriculture, landscaping companies, urban pruning, and gardening are also suitable raw materials. Composting is the most efficient method for treating and stabilizing organic waste, producing a hygienic and useful product at acceptable costs. Given the growing concern about pollution and the scarcity of natural resources, the biological stabilization of organic solid waste allows for the recycling of nutrients and the use of organic matter. Urban solid waste, such as those resulting from pruning, generate considerable volumes of plant material that can be shredded for composting, reducing environmental damage and pressure on natural resources. This procedure enables the production of compost for agricultural use, seedling production, and landscaping, recycling nutrients and extending the life of waste deposits. The implementation of shredding systems for composting in plants is an important strategy to minimize the volume of solid waste destined for landfills. This also favors the production of seedlings and gardening in urban areas, avoiding the extraction of fertile soil from natural areas. The use of composted waste for fertilization contributes to environmental sustainability and generates savings for the public treasury.