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WASTE TO WEALTH
Done by,
Saranya D
M.Tech-1st year
Department of Biotechnology
K S Rangasamy College of Technology
1
WASTE
Any substance which is
discarded after primary use or
is worthless, defective and of
no use.
2
Sources of waste
 Home
 Shopping centres
 Offices
 Schools
 Industries
 Eateries
 Religion centres
 Hospitals
 Events
3
Care of the environment begins by4
Prevention
Reduce
Reuse
Recycle (sorting or recover)
Rethink (energy recover)
Zero to landfill
Waste to wealth technologies
5
Composting
kitchen waste
Organic
waste
collection
1. Manures
2. Mushroom
cultivation
Production of
ethanol, acetic
acid, citric acid by
fermentation
Bio gas and bio
fuel production
Charcoal Briquettes
Charcoal briquettes can be made
from waste materials and burn
longer the traditional charcoal.
They are easy to make on a small or
large scale, can be a source of
income generation for the family.
6
Biogas Production
Methane rich gas (97%)
Produced by anaerobic digestion
Organic food waste is uneconomic to reuse or recycle
Biofuel can be used to generate renewable electrical
and heat energy
Reduces the Green house gas emission, not adding
carbon in to the environment
30% energy savings over fossil fuels
7
8
Mushroom cultivation from agro wastes
 Agro wastes are rich in lignocellulosic components
 Fungi convert complex organic compounds into valuable
products
Mushroom strains produced world wide are,
 Button – Agaricus
 Oyster – Pleurotous
 Shiitake – Lentinula Edodes
 Straw – Volvallella volvacea
 Chinese mushroom - Ganoderma
9
Agro wastes in mushroom cultivation includes,
Wheat straw
Paddy straw
Rice straw
Rice bran
Molasses
Coffee straw
Banana leaves
Tea leaves
Cotton straw
Saw dust
10
Human Urine to fertilizer11
Ethanol production from agro waste
In abundant supply (about 5 million ton per year)
Potentially promising bio resource
High sugar content
High potential of ethanol production
High concentration of salt (1.9-2.2 %)
Does not lead to resource conflict (insufficient
food supply)
12
Fruit waste for citric acid production
Orange peel waste
Sugarcane bagasse
Grape pomace
Apple pomace
Pine apple pomace
Tapioca
Coconut husk
Banana peels
Whey
13
14

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Waste to wealth

  • 1. WASTE TO WEALTH Done by, Saranya D M.Tech-1st year Department of Biotechnology K S Rangasamy College of Technology 1
  • 2. WASTE Any substance which is discarded after primary use or is worthless, defective and of no use. 2
  • 3. Sources of waste  Home  Shopping centres  Offices  Schools  Industries  Eateries  Religion centres  Hospitals  Events 3
  • 4. Care of the environment begins by4 Prevention Reduce Reuse Recycle (sorting or recover) Rethink (energy recover) Zero to landfill
  • 5. Waste to wealth technologies 5 Composting kitchen waste Organic waste collection 1. Manures 2. Mushroom cultivation Production of ethanol, acetic acid, citric acid by fermentation Bio gas and bio fuel production
  • 6. Charcoal Briquettes Charcoal briquettes can be made from waste materials and burn longer the traditional charcoal. They are easy to make on a small or large scale, can be a source of income generation for the family. 6
  • 7. Biogas Production Methane rich gas (97%) Produced by anaerobic digestion Organic food waste is uneconomic to reuse or recycle Biofuel can be used to generate renewable electrical and heat energy Reduces the Green house gas emission, not adding carbon in to the environment 30% energy savings over fossil fuels 7
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  • 9. Mushroom cultivation from agro wastes  Agro wastes are rich in lignocellulosic components  Fungi convert complex organic compounds into valuable products Mushroom strains produced world wide are,  Button – Agaricus  Oyster – Pleurotous  Shiitake – Lentinula Edodes  Straw – Volvallella volvacea  Chinese mushroom - Ganoderma 9
  • 10. Agro wastes in mushroom cultivation includes, Wheat straw Paddy straw Rice straw Rice bran Molasses Coffee straw Banana leaves Tea leaves Cotton straw Saw dust 10
  • 11. Human Urine to fertilizer11
  • 12. Ethanol production from agro waste In abundant supply (about 5 million ton per year) Potentially promising bio resource High sugar content High potential of ethanol production High concentration of salt (1.9-2.2 %) Does not lead to resource conflict (insufficient food supply) 12
  • 13. Fruit waste for citric acid production Orange peel waste Sugarcane bagasse Grape pomace Apple pomace Pine apple pomace Tapioca Coconut husk Banana peels Whey 13
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