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"One Day's Garbage" Environment and Us PPT Courseware 2
Common classification standards for domestic waste:
1. According to nature:
Food waste, general waste, construction waste, hazardous (toxic) waste
2. According to processing methods:
Recyclable garbage, non-recyclable garbage, toxic garbage
3. According to materials:
Metal, plastic, paper, wood, ceramics, glass, food, etc.
Popularization of small knowledge
75-80% of domestic waste is (organic matter). They are the roots, leaves, stems, and skins of vegetables, spoiled leftovers, leaves, waste paper, peels, dust, flowers, and animal bodies.
The remaining 20-25% is (inorganic matter), which are scrap iron, plastic, foam, glass bottles, a small amount of wood, soot and broken electrical appliances.
Do the math
If we calculate that each person produces 1 kilogram of garbage every day, how much garbage will our entire class produce in a day?
Our school has more than 2,500 people, how many can we produce in one day?
What about Yuhuan County? (Permanent population: 600,000)
Garbage disposal
1. Sanitary burial method
2. Incineration method
3. Fertilization method
Yuhuan County Waste Incineration Power Generation Project
The Yuhuan County Waste Incineration Power Generation Project is located in the West Beach of Xiaotan Village, Yucheng Street, Yuhuan County. It is designed to process 700 tons of garbage per day (350 tons/day·unit×2 units) and has a turbine generator installed capacity of 12MW. The waste incineration production line equipment is annually Effective working time is 8000 hours. The annual waste processing capacity is 233,000 tons, the annual on-grid electricity is 52.5 million kilowatt-hours, and the total project investment is approximately 247 million yuan. A 225 tons/day incineration line is reserved in the long term.
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