Application review on community composting in organic solid waste recycling
Kitchen waste and garden waste generated in the community are the main body of urban organic solid waste.Community composting,as an effective way to reutilize organic solid waste,provides a community-scale solution for urban organic solid waste management.However,there are still some problems in community composting,such as insufficient understanding and technical limitation.This paper aimed to promote people's understanding by summarizing the material sources and components,facilities,impact factors and maturity assessment.The raw materials of community composting were mainly kitchen waste and garden waste.The treatment scale was between centralized composting and small family composting.The volume of community composting facility was generally 0.65-3.00 m3.The main factors affecting community composting included temperature,carbon to nitrogen ratio,conductivity,pH and turnover operation etc.The carbon in organic matter of community composting was in a state of recycling.In addition,community composting reduced the collection and transportation costs,thus reducing large quantity of carbon.The emission of polluted gases especially odors during community composting were still the bottlenecks that hindered the spread of community composting.It needed the government and community to solve the problem together.
community compostingkitchen wastegarden wastegreenhouse gascarbon emission reduction