كليدواژه :
بررسي فيزيكي - شيميايي , كشاورزي , كمپوست 0002 تني كهريزك , بررسي بيولوژيكي , كمپوست زباله شهري
چكيده لاتين :
Composting of municipal solid waste (MSW) is an alternative to landfill and incineration. Composting is a natural process which results in the conversion of organic matter into growing media that can be used for agriculture, horticulture and landscape. Tehran as a capital produces 7000 tons of MSW per day, most of which ends up in landfill. Recently two compost plans with a capacity of 2750 tons were established. The end products of newly made compost and the physical, chemical and fungal flora of composting MSW were studied. One of the critical problems of all large cities is waste materials, solid as well as liquid. Use of municipal solid waste (MSW) to make compost is one of the most principal methods of reducing urban waste volume. Composting is the decompostion of organic matter by microorganisms in a moist, warm and aerobic environment. Municipal compost can be used as a soil amendment in agriculture. There is abundant literature on the application of MSW to the soil under different crops. Increasing amounts of MSW and decreasing availability of landfilling space has resulted in problems for modern society. Landfilling and incineration are common treatment of MSW in most developing countries, which are harmful for environment and cause water and air pollution.lt has been estimated that for direct landfilling of 1000 tons MSW a volume of 1670 m3 and an area of 600 m^2 land is required. Tehran with a population of 10 million produces 7000 tons of MSW daily, which needs 4200 m2 of land. Recently two mixed waste compostion plants with capacity of daily 2750 tons were established. Analysis of feedstock showed that about 60% of this MSW is compostable. The study was under taken for two purposes. 1) To evaluate the end product of newly made compost. 2) to study the physical, chemical and fungal flora of composting materials. This work was conducted in Kahrizak composting yard which is located 20 km away from Tehran with a capacity of composting 2000 tons MSW daily.
