solid waste plant
TRANSCRIPT
SOLID WASTE PLANT
• BY-
• GAURAV SINGH• ME-09
• SRMSCET
What is waste?• Waste includes all items that people no
longer have any use for, which they either intend to get rid of or have already discarded.• Additionally, wastes are such items which
people are require to discard, for example by lay because of their hazardous properties.
EXAMPLES• household rubbish, sewage
sludge, wastes from manufacturing activities, packaging items, discarded cars, old televisions, garden waste, old paint containers etc.
Types of wastes• Municipal Waste (including Household
and Commercial)• Industrial waste (including
manufacturing)• Hazardous Waste• Construction and Demolition Waste• Mining Waste
...
• Waste from Electrical and Electronic Equipment (WEEE)
• Biodegradable Municipal Waste• Packaging Waste• End-of-Life Vehicles (ELVs) and Tyres• Agricultural Waste
...
• Waste from Electrical and Electronic Equipment (WEEE)
• Biodegradable Municipal Waste• Packaging Waste• End-of-Life Vehicles (ELVs) and Tyres• Agricultural Waste
Basic contents
Facts and figures In INDIA, Solid waste – 30 million tonnes/year Liquid waste – 4400 million cubicmetres/year Municipal solid waste- 0.25 to 0.66 kg/person/day (avg. 45).
Method of waste treatment• Landfill- burying the waste. • Incineration- burning the waste to
residue and gaseous products.
•Energy recovery- using it as a mean to generate energy.
Technologies of waste recovery
Anaerobic digestion/ biomethanation
1. anaerobic biodegradation of wastes. 2. production of biogas & effluent. 3. generation of power through turbines &
engines. 4. also used as soil conditioner & manure
Combustion/Incineration• Burning of wastes in presence of oxygen at
high temperature (around 800ºC).• Generated heat(steam) is used in turbines to
produce power.
Landfill Gas recovery• Organic fractions of waste slowly volatilizes
and decomposes to produce landfill gases.• The gas contains a high percentage of
methane (about 50%).• Used for direct heating/cooking applications.
Pyrolysis/Gasification• Organic material is heated in absence of air
until the molecules thermally break down to become a gas comprising smaller molecules.
• The gases produced by pyrolysis mainly comprise carbon monoxide (25%), hydrogen and hydrocarbons (15%), and carbon dioxide and nitrogen (60%).
• Gases are used in I.C. engines & turbines.
Treatment of BMW
CONCLUSION
Potential in India1. Municipal Solid Waste: 17 MW2. Industrial Waste: 29.50 MW
Potential for recovery of energy from industrial wastes
Sector Potential (MW)
Dairy 49
Distillery 402
Sugar 290
Pulp & Paper 46
Starch 103
Poultry 52
Slaughterhouse 75
Tannery 5
Total 1022
THANK YOU.