MSW combustion accounts for a small portion of American waste management for multiple reasons. Generally speaking, regions of the world where populations are dense and land is limited (e.g. many European countries, Japan), have greater adoption of combustion with energy recovery due to space constraints. As the United States encompasses a large amount of land, space limitations have not been as important a factor in the adoption of combustion with energy recovery. Landfilling in the United States is often considered a more viable option, especially in the short term, due to the low economic cost of building an MSW landfill verses an MSW combustion facility. Another factor in the slow growth rate of MSW combustion in the United States is public opposition to the facilities. These facilities have not always had air emission control equipment, thus gaining a reputation as high polluting. In addition, many communities do not want the increased traffic from trucks or to be adjacent to any facility handling municipal waste. Additionally, the upfront money needed to build an MSW combustion facility can be significant and economic benefits may take several years to be fully realized. A new plant typically requires at least 100 million dollars to finance the construction; larger plants may require double to triple that amount. MSW Combustion facilities typically collect a tipping fee from the independent contractors that drop the waste off on a daily basis to recover costs. The facilities also receive income from utilities after the electricity generated from the waste is sold to the grid. A possible third stream of revenue for the facilities comes from the sale of both ferrous (iron) and non-ferrous scrap metal collected from the post-combusted ash stream.

1. ENERGY RECOVERY FROM
WASTE
ASSOCIATION OF ENERGY ENGINEERS
SCMS School of Engineering & Technology
Presented by :-
Aghil Krishna
Akin P. Kennedy
Annson Varghese
Vivek V

2. Energy Conservation

3. Why Recover Energy from waste ?
The technology which comes in role after all the
problems are:-
~ Crises of energy
~ Increasing waste materials
~ Impacts
~ Populations

4. POPULATION

5. Waste material

6. What will happen, if… ??

7. Impacts of waste on earth
➔ Climate Change
➔ Effect on Health & Environment
➔ Pollution
➔ Radioactive increase
➔ Problems to forests
➔ Animals
➔ Increase Diseases
➔ Other problems

8. Electricity generation plants

9. Waste to electricity generation
Process
● Process flow description
● Material handling (WASTE)
● Thermal transformation
● Gas clean up
● Steam & power generation

10. Process

11. Which type of material ?

12. Local advantages
● Reduces costs & risks associated with landfills.
● Additional source of revenue.
● Stimulates your local economy.
● Creates jobs. Money stays at home.
● Reduces petroleum dependence.
● Helps meet alternative fuel mandates.
● Research.

13. Environmental advantages
● ELIMINATE LANDFILLS : - This process does not generate
residual waste, thereby eliminating the need for new landfills.
● GROUND WATER : - The risk of contaminated ground water is
eliminated.
● RENDER INCINERATORS OBSOLETE : - Existing incinerator
plants can be retrofitted into our process, eliminating the ash
disposal & emission problems inherent with incinerators.
● AIR & WATER EMISSIONS ARE BELOW EPA STANDARDS.
● RECOVERED ENERGY : - The energy produced by the process
(electricity) is recovered from discarded materials.

14. CONCLUSION
● If a country generates electricity by using these
technologies then it is one of the best economical
problem solution.
● Seen after all the problems around the world, work will
start on this.
● The only way to produce power from waste efficiently is
to use a combined cycle gas steam turbine.
● The technology of generating electricity is well to show
the environment clean.
● Required to research.

15. QUESTIONS ?