Municipal solid waste Approximately 210 million tons of waste per year Fig. 4 Municipal solid waste(left) and it,'s disposal (right)
Fig. 4 Municipal solid waste (left) and it’s disposal (right) ◆ Municipal Solid Waste Approximately 210 million tons of waste per year
Solid Waste Management ndustrial Mining waste Agricultural Municipal waste waste waste consume a large area of land lack of dumping land Potential effects on groundwater and air quality decreased landfill site E increased operating cost Y角 Need long-term solutions to reduce
◆ increased operating cost Industrial waste Mining waste Agricultural waste ◆ consume a large area of land / lack of dumping land Municipal waste Solid Waste Management Need long Need long-term solutions to reduce term solutions to reduce …… ◆ decreased landfill site ◆ Potential effects on groundwater and air quality
The nature of the problem Wherever people exist, waste disposal is a problem. The effect of lifestyle on solid waste production The waste generation rate of people are 1000 directly related to 00 their economic condition People in richer countries produce more garbage than those in poor countries Fig. 5 Municipal solid waste generation and lifestyle
The effect of lifestyle on solid waste production ‘Wherever people exist, waste disposal is a problem. ’ Fig. 5 Municipal solid waste generation and lifestyle The waste generation rate of people are directly related to their economic condition. People in richer countries produce more garbage than those in poor countries. The nature of the problem
Paper products are the largest component of the waste stream The amount of plastics in the waste stream was increased significantly 1970 Fig. 6 The changing nature of trash
Fig. 6 The changing nature of trash Paper products are the largest component of the waste stream The amount of plastics in the waste stream was increased significantly
Paper and yard waste are the most common material disposed of, accounting for about 50% of the waste stream 10 0 Fig 7 Composition of trash in the United States(2000)
Fig. 7 Composition of trash in the United States (2000) Paper and yard waste are the most common material disposed of , accounting for about 50% of the waste stream