By separating home yard wastes and turning them into compost, it is estimated that municipalities can reduce the amount of trash going to landfills by about 20%. While that is a significant reduction, it is expected that even more trash will have to be diverted from landfills in the future. Materials such as soiled food packaging, disposable diaper padding, food scraps, natural fiber rags, pieces of wood, and other organic materials could all be composted. To do this, municipalities may have to establish municipal solid waste (MSW) treatment facilities to separate the compostible materials from the harmful materials, such as discarded batteries, motor oil, asbestos, and many household chemicals.
Backyard composting can be done using a variety of different systems, enclosures, or containers. Composting systems or bins can be constructed at home or purchased commercially. Depending on where you live, youmay have a problem with rodents if vegetative food wastes are combined with yard wastes. If so, an enclosed space or bin is advisable. The methods employed will vary somewhat depending on the system you choose, but the principles and purpose remain the same. This is true for large-scale composting projects as well.