Composting is an effective way to reduce municipal solid waste and create useful products. Composting is a biological process that involves the breakdown of organic matter into compost or humus, which can be used as a soil conditioner or mulch. The process of composting includes several steps, including sorting and separating, size reduction, and digestion of the refuse. Mechanical treatments such as shredding or pulverizing reduce the size of the waste materials and create a uniform mass of material. Composting can be done in two ways: the open windrow method and the enclosed mechanical facility. The open windrow method involves turning or mixing the waste every few days to provide air for the microbes digesting the organics. This method requires relatively large land areas. Enclosed mechanical composting facilities, however, can reduce land requirements by about 85 percent. After digestion, the compost must be processed before it can be used as a mulch or soil conditioner. Processing includes drying, screening, and granulating or pelletizing. Composting offers several benefits over other waste management options, such as the ability to process both garbage and sewage sludge in one operation. Additionally, it is more environmentally friendly and cost-effective than other methods. Composting is a great way to reduce the amount of waste sent to landfills and create useful products.