SOLID WASTE: It is the waste arising from human and animal activities, which is normally solid and are discarded as useless or unwanted.
Solid waste may be classified as biodegradable and non biodegradable components.
It includes waste from houses, offices, stores and schools etc and these are referred as municipal solid waste
Segregation is the process of separation and processing of solid waste components.
Waste can be segregated as
1 . Biodegradable and
2 . non-Biodegradable
Biodegradable waste includes organic waste such as kitchen waste, vegetable waste, flowers, fruits, leaves from garden, and paper.
Non Biodegradable waste can be further segregated into:
a) Recycle waste:plastics, paper, glass, metal, etc
b) Toxic waste:old medicines, paints, chemicals, bulbs, spray cans,fertilizers and pesticides
c) Solid:hospital waste such as cloth solid with blood and other
REUSE AND RECYCLE
Reuse is the process in which materials separated from MSW can be used directly as raw material for re-manufacturing and reprocessing of products.
Many of the materials separated from MSW can be reused directly such as timber, wooden pallets etc.
Recycling is the physical reprocessing of old materials into new products.
Recycling involves four main steps
a) Collection and separation of recyclables.
b) Delivery to waste recycling sector.
c) Processing of recyclables.
d) Manufacturing of new product.
WASTE FOR RECYCLING AND REUSE ARE:
Plastic , paper, paper, rubber, glass, steel, iron, wood, aluminium.
WASTE FOR COMPOSTING
Kitchen waste, vegetables, fruits, flowers, leaves, paper.
ADVANTAGES OF SEGREGATION OF WASTE OR SOURCE
Cleaner and safe neighborhoods.
Higher resource use efficiency.
Savings in waste management costs due to reduced levels of final waste disposal.
Less burden on composting plants.
Extension of valuable landfill capacity.
Revenues from recycling commodities.
Conservation of natural resources.
Prevents emission of many green house gases and water pollutants.
CASE STUDY OF KUMBARAKOPPAL , MYSORE
A zero waste management plant located in Kumbarakoppal (ward no 28) situated on the southern side of Mysore city at 7 km from city center.
The ward number 28 has an estimated population of 20000 with 5000 households.
The main contributor for solid waste are 228 shops, 2 choultries, 3 hotels, 1 meat shop, 5 hospitals, clinics and 9 temples in this area.
Minimum 3 tonnes of solid waste is collected daily from this ward and is transported to the ZWM plant for segregation , recovery of economical products and composting of the biodegradable wastes.
This plant consists of 30 workers , 5 auto tipper and 3 push cart for collecting , transporting and segregating of solid waste.
Due to the increase in the population and rapid growth of the city around 400 tonnes of solid waste is collected daily in Mysore city.
So there is heavy burden on the composting plants and land fills.
Hence segregation from solid waste is need, so by adopting zero waste management plants throughout the city in all the wards is necessary.