同济大学：《固体废物处理与资源化》课程教学资源（讲稿）Waste processing technologies application

Waste processing technologies application 9 IESD UNEP fppt.com

Waste processing technologies application

Why is Municipal Solid Waste(MSW)Processing Necessary Reduces labor intensity, Can reduce total cost of waste disposal management Reduces energy consumption and Pollution Reduction Pulped paper reduces energy required to manufacture new paper by 50%. Reduces pressure on disposal systems. ● Enhances recycling Better Disposal Techniques fppt.com

 Reduces labor intensity,  Can reduce total cost of waste disposal & management  Reduces energy consumption and Pollution Reduction  Pulped paper reduces energy required to manufacture new paper by 50%.  Reduces pressure on disposal systems.  Enhances recycling  Better Disposal Techniques Why is Municipal Solid Waste(MSW) Processing Necessary

TECNOLOGIES IN MSW PROCESSING .·Conveying Compacting ·Shredding ·Roll Crushing ·Pulping ·Granulating IESD UNEP fppt.com

• • Conveying • Compacting • Shredding • Roll Crushing • Pulping • Granulating TECNOLOGIES IN MSW PROCESSING

Local technology choices depend on Cost ·Available land area ·Waste quantity Waste characteristics Regulatory constraints ·Local preferences Collection and transport issues Policy planning guidance 红 IESD UNEP fppt.com

Local technology choices depend on • Cost • Available land area • Waste quantity • Waste characteristics • Regulatory constraints • Local preferences • Collection and transport issues • Policy planning guidance

Storing Storage before collecting: General requirements: 1.Residential: The storage space should be sufficient to maximize recycling rates and to encourage the reuse of unwanted goods. .Up to 10 households-one 90 liter dustbin for waste and three 44 liter containers for dry recyclable material .More than 10 households-55 litters waste storage capacity per bedroom,plus an additional 60%storage capacity for dry recyclable material with a capacity of 660 liters or above 》 IESD UNEP fppt.com

Storing Storage before collecting: General requirements: 1.Residential: The storage space should be sufficient to maximize recycling rates and to encourage the reuse of unwanted goods. •Up to 10 households - one 90 liter dustbin for waste and three 44 liter containers for dry recyclable material •More than 10 households - 55 litters waste storage capacity per bedroom, plus an additional 60% storage capacity for dry recyclable material with a capacity of 660 liters or above

2.Offices 1.7 cubic meters waste storage for every 1,000 m2 gross floor space and 70%of this capacity must be retained for the storage of separated waste for recycling 3.Restaurants and fast foods The size of the waste store should be a ratio of 1:60 of the gross floor space However,the store would need to be large enough to accommodate sufficient storage containers for waste and recyclable material.70%of this capacity must be retained for the storage of separated waste for recycling 4.Hotels Waste storage depends of the size of the rooms plus additional space if hotel include a restaurant.Compaction equipment would also be required in larger hotels.70%of this capacity must be retained for the storage of separated waste for recycling IESD UNEP fppt.com

2. Offices 1.7 cubic meters waste storage for every 1,000 m2 gross floor space and 70% of this capacity must be retained for the storage of separated waste for recycling 3. Restaurants and fast foods The size of the waste store should be a ratio of 1:60 of the gross floor space However, the store would need to be large enough to accommodate sufficient storage containers for waste and recyclable material. 70% of this capacity must be retained for the storage of separated waste for recycling. 4. Hotels Waste storage depends of the size of the rooms plus additional space if hotel include a restaurant. Compaction equipment would also be required in larger hotels. 70% of this capacity must be retained for the storage of separated waste for recycling

9苹是 IESD UNEP fppt.com

Innovations: Solar street garbage cans with compactor-USA By compressing its contents,the unit gains capacity, so it doesn't have to be emptied as often.Fewer collections mean cost-savings for labor,fuel and maintenance and reduced greenhouse gas emissions. Solar-Powered Trash Compactors and recycling kiosks are perfect for cities,community centers,parks, beaches or other high-traffic areas fppt.com

Innovations: Solar street garbage cans with compactor - USA By compressing its contents, the unit gains capacity, so it doesn’t have to be emptied as often. Fewer collections mean cost-savings for labor, fuel and maintenance and reduced greenhouse gas emissions. Solar-Powered Trash Compactors and recycling kiosks are perfect for cities, community centers, parks, beaches or other high-traffic areas

Temporary storage Due to the current lack of sufficient operating capacity in the corresponding facilities,part of the waste stream must be held in interim storage until treated or until further utilization becomes possible.These storage solutions have in common that considerable environmental problems can occur as a result of inadequate construction and process engineering.In addition,the temporary storage of waste is also of relevance for the situation of other European countries,which are under pressure to reduce the portion of biodegradable waste going to landfills in order to fulfill the provisions made by European legislation. Trucks during the transport-by regulations should be closed space transport but very often open space trucks are used in developing countries 价 IESD UNEP fppt.com

Temporary storage • Due to the current lack of sufficient operating capacity in the corresponding facilities, part of the waste stream must be held in interim storage until treated or until further utilization becomes possible. These storage solutions have in common that considerable environmental problems can occur as a result of inadequate construction and process engineering. In addition, the temporary storage of waste is also of relevance for the situation of other European countries, which are under pressure to reduce the portion of biodegradable waste going to landfills in order to fulfill the provisions made by European legislation. • Trucks during the transport – by regulations should be closed space transport but very often open space trucks are used in developing countries

Storage before treatment A storage with an overhead bridge crane The storage of MSW is serious problem in incineration plants.Most waste to energy combustors must be continuously fired and that required sufficient storage at least two days to secure fuel for furnace during the weekend when collection companies usually don't work. IESD UNEP fppt.com

Storage before treatment • A storage with an overhead bridge crane The storage of MSW is serious problem in incineration plants. Most waste to energy combustors must be continuously fired and that required sufficient storage at least two days to secure fuel for furnace during the weekend when collection companies usually don’t work