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Solid Waste Management

            Muhammad Fahad Ansari
12IEEM14
Waste- Definition & Classification
    Any material which is not needed by the
     owner, producer or processor.

    Classification
    •   Domestic waste
    •   Factory waste
    •   Waste from oil factory
    •   E-waste
    •   Construction waste
    •   Agricultural waste
    •   Food processing waste
    •   Bio-medical waste
    •   Nuclear waste
Solid Waste
Classification of Wastes
• Solid waste- vegetable waste, kitchen waste, household
  waste etc.

• E-waste- discarded electronic devices like computer, TV,
  music systems etc.

• Liquid waste- water used for different industries e.g.
  tanneries, distilleries, thermal power plants

• Plastic waste- plastic bags, bottles, buckets etc.

• Metal waste- unused metal sheet, metal scraps etc.

• Nuclear waste- unused materials from nuclear power plants
SOURCES OF SOLID WASTE
The solid waste (i.e. garbage) includes
the dry refuse like street sweepings, ash,
mud, decayed vegetables and fruits,
grass, leaves, paper pieces, cloth pieces,
etc. The following are the sources of such
solid waste:
(a) Market

(b) Road Side Dustbins

(c) Residential Area

(d) Street Sweepings

(e) Cinema and Theatre Halls

(f) Schools and Colleges

(g) Hospitals
COLLECTION AND REMOVAL OF
SOLID WASTE

The following vehicles are employed for the
removal of solid waste.

1. Rickshaw-vans
6.Wheeled Baskets
7.Trailors
8.Trucks
DISPOSAL OF SOLID WASTE
The following are the general methods of disposal:

(a) By trenching: In this method, trenches are
excavated in barren lands far away from the town The
garbage is dumped into the trench and leveled properly.



(b) By land filling: In this method, the garbage is
dumped in low-lying area phase by phase.


(c) By incineration: The process of burning the
garbage into ash is known as incineration
(d) By pulverization: The method of grinding the
garbage into powder is known as pulverization



(e) By composting:           In this method, the garbage is
converted to manure in a mechanical compost plant. This is
a hygienic method of garbage disposal. Here, the worthless
materials may be obtained as useful materials like fertilizer


(f) By disposal to sea: In coastal towns, the
disposal of garbage into the sea But the garbage should be
discharged into the deep sea by studying the current and
wave action of the sea so that it may not return to the shore
again.
Solid Waste in Pakistan
• 7.2 million tonnes of hazardous waste

• One Sq km of additional landfill area every-year

• Rs 1600 crore for treatment & disposal of these wastes

• In addition to this industries discharge about 150 million
  tonnes of high volume low hazard waste every year,
  which is mostly dumped on open low lying land areas.
Growth of Solid Waste In Pakistan
  • Waste is growing by leaps & bounds

  • In Pakistan , population is increasing day by day from 16
    caror to 18 caror.

  • During the same period, municipal solid waste has grown
    from 3200 tonnes to 5355 tonne, an increase of 67%

  • Waste collection is very low for all Pakistan cities

  • Cities like Karachi, Lahore produces 2000 tonnes of waste
    per annum, the ever increasing waste has put pressure on
    hygienic condition of the cities
Waste Collection in Pakistan
• Primarily by the city municipality
  -No gradation of waste product e.g. bio-degradable,
  glasses, poly bags, paper shreds etc
  -Dumps these wastes to the city outskirts


• Local Talukas / Distt: (Rag pickers)
  -Collecting small iron pieces by magnets
  -Collecting glass bottles
  -Collecting paper for recycling
Hazardous / Toxic Waste & Dumping Site
  • Industrialized countries have waste
    management problems

  • Developed countries have strict
    environment regulation norms

  • Most attractive option for them- to dump
    into developing countries
Major Polluting Industries in Pakistan

   • Around 2500 tanneries discharge 24
     million cu m of waste water containing
     high level of dissolved solids and 4,00,000
     tonnes of hazardous solid waste

   • Thermal power plants discharge huge waste
     materials
Collection & Recycling of Waste Materials
Managing Waste
Recycling: Processing of a waste item into usable forms.

Benefits of recycling:
-Reduce environmental degradation
-Making money out of waste
-Save energy that would have gone into waste handling &
   product manufacture

Saving through recycling:
-When Al is resmelted- considerable saving in cost
-Making paper from waste saves 50% energy
-Every tonne of recycled glass saves energy equivalent to
  100 liters of oil
Recycling not a solution to all problems!
    Recycling is not a solution to managing every
     kind of waste material

    For many items recycling technologies are
      unavailable or unsafe

    In some cases, cost of recycling is too high.
Solution: More Profit With Zero Waste
  • Exchanging output that are considered
    waste
  • Waste of one could be input or raw
    material for others
  • Evolving a closed system- matter & energy
    circulate within
  • System was not designed to be so
  • The system of exchange evolved in 10
    years
Problems in Dealing With Solid Waste
     • Education & voluntary compliance

     • Collection of waste

     • Technological interventions

     • Institutions & regulatory framework

     • Absence of mandatory standards for waste reduction

     • Market action for waste reduction

                                     Source: The Energy & Resources Institute
Solid waste management by Muhammad Fahad Ansari 12IEEM14
GOOD LUCK
 THANKX!!!!

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Solid waste management by Muhammad Fahad Ansari 12IEEM14

  • 1. Solid Waste Management Muhammad Fahad Ansari 12IEEM14
  • 2. Waste- Definition & Classification Any material which is not needed by the owner, producer or processor. Classification • Domestic waste • Factory waste • Waste from oil factory • E-waste • Construction waste • Agricultural waste • Food processing waste • Bio-medical waste • Nuclear waste
  • 4. Classification of Wastes • Solid waste- vegetable waste, kitchen waste, household waste etc. • E-waste- discarded electronic devices like computer, TV, music systems etc. • Liquid waste- water used for different industries e.g. tanneries, distilleries, thermal power plants • Plastic waste- plastic bags, bottles, buckets etc. • Metal waste- unused metal sheet, metal scraps etc. • Nuclear waste- unused materials from nuclear power plants
  • 5. SOURCES OF SOLID WASTE The solid waste (i.e. garbage) includes the dry refuse like street sweepings, ash, mud, decayed vegetables and fruits, grass, leaves, paper pieces, cloth pieces, etc. The following are the sources of such solid waste:
  • 6. (a) Market (b) Road Side Dustbins (c) Residential Area (d) Street Sweepings (e) Cinema and Theatre Halls (f) Schools and Colleges (g) Hospitals
  • 7. COLLECTION AND REMOVAL OF SOLID WASTE The following vehicles are employed for the removal of solid waste. 1. Rickshaw-vans 6.Wheeled Baskets 7.Trailors 8.Trucks
  • 8. DISPOSAL OF SOLID WASTE The following are the general methods of disposal: (a) By trenching: In this method, trenches are excavated in barren lands far away from the town The garbage is dumped into the trench and leveled properly. (b) By land filling: In this method, the garbage is dumped in low-lying area phase by phase. (c) By incineration: The process of burning the garbage into ash is known as incineration
  • 9. (d) By pulverization: The method of grinding the garbage into powder is known as pulverization (e) By composting: In this method, the garbage is converted to manure in a mechanical compost plant. This is a hygienic method of garbage disposal. Here, the worthless materials may be obtained as useful materials like fertilizer (f) By disposal to sea: In coastal towns, the disposal of garbage into the sea But the garbage should be discharged into the deep sea by studying the current and wave action of the sea so that it may not return to the shore again.
  • 10. Solid Waste in Pakistan • 7.2 million tonnes of hazardous waste • One Sq km of additional landfill area every-year • Rs 1600 crore for treatment & disposal of these wastes • In addition to this industries discharge about 150 million tonnes of high volume low hazard waste every year, which is mostly dumped on open low lying land areas.
  • 11. Growth of Solid Waste In Pakistan • Waste is growing by leaps & bounds • In Pakistan , population is increasing day by day from 16 caror to 18 caror. • During the same period, municipal solid waste has grown from 3200 tonnes to 5355 tonne, an increase of 67% • Waste collection is very low for all Pakistan cities • Cities like Karachi, Lahore produces 2000 tonnes of waste per annum, the ever increasing waste has put pressure on hygienic condition of the cities
  • 12. Waste Collection in Pakistan • Primarily by the city municipality -No gradation of waste product e.g. bio-degradable, glasses, poly bags, paper shreds etc -Dumps these wastes to the city outskirts • Local Talukas / Distt: (Rag pickers) -Collecting small iron pieces by magnets -Collecting glass bottles -Collecting paper for recycling
  • 13. Hazardous / Toxic Waste & Dumping Site • Industrialized countries have waste management problems • Developed countries have strict environment regulation norms • Most attractive option for them- to dump into developing countries
  • 14. Major Polluting Industries in Pakistan • Around 2500 tanneries discharge 24 million cu m of waste water containing high level of dissolved solids and 4,00,000 tonnes of hazardous solid waste • Thermal power plants discharge huge waste materials
  • 15. Collection & Recycling of Waste Materials
  • 16. Managing Waste Recycling: Processing of a waste item into usable forms. Benefits of recycling: -Reduce environmental degradation -Making money out of waste -Save energy that would have gone into waste handling & product manufacture Saving through recycling: -When Al is resmelted- considerable saving in cost -Making paper from waste saves 50% energy -Every tonne of recycled glass saves energy equivalent to 100 liters of oil
  • 17. Recycling not a solution to all problems! Recycling is not a solution to managing every kind of waste material For many items recycling technologies are unavailable or unsafe In some cases, cost of recycling is too high.
  • 18. Solution: More Profit With Zero Waste • Exchanging output that are considered waste • Waste of one could be input or raw material for others • Evolving a closed system- matter & energy circulate within • System was not designed to be so • The system of exchange evolved in 10 years
  • 19. Problems in Dealing With Solid Waste • Education & voluntary compliance • Collection of waste • Technological interventions • Institutions & regulatory framework • Absence of mandatory standards for waste reduction • Market action for waste reduction Source: The Energy & Resources Institute