solid waste plant

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.