Waste Management

2,537 views

Published on

Waste Management

Published in: Environment
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,537
On SlideShare
0
From Embeds
0
Number of Embeds
14
Actions
Shares
0
Downloads
179
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Waste Management

  1. 1. WASTE MANAGEMENT Created by: Elshe de Wet
  2. 2. TRAINING OUTCOME The primary function of this lesson is to assure that the learners understand waste Management.  Must understand what is waste.  Must understand what is waste management.  Must be able to describe the different types of waste produced.  Must understand the effects if waste is not managed.  Must understand and know how to reduce, re-use, recycle and recover waste  Must understand the treatment, processing and disposal of waste.
  3. 3. AGENDA  What is waste  What is waste management  Different types of waste that is produced  Effects of waste if not managed  Reduction, re-use, recycling and recovery of waste  Treatment, processing and disposal of waste
  4. 4. WHAT IS WASTE  An unusable/ unwanted substance or material  Rejected as worthless  E.g. Rubbish, trash, garbage or junk
  5. 5. WHAT IS WASTE MANAGEMENT  Collection  Transportation  Disposal  Treatment  Storage  Processing  Source separation  Transfer
  6. 6. DIFFERENT TYPES OF WASTE  Domestic waste  E.g. Paper, plastic, glass, vegetable waste etc.  Commercial waste  E.g. Printer paper etc.  Ashes  E.g. Coal, wood etc.  Biomedical waste  E.g. Expired drugs, Surgical dressings etc.
  7. 7. DIFFERENT TYPES OF WASTE  Construction waste E.g. Metal rods, bricks, cement, concrete, roofing materials etc.  Industrial solid waste E.g. Garment factory would dump textiles of various kinds etc.  Sewer E.g. Removed from the sewerage etc.
  8. 8. DIFFERENT TYPES OF WASTE  Hazardous waste  E.g. Chemicals etc.  Nuclear waste  E.g. Containing radioactive material etc.  Electrical waste  E.g. Mobiles, computers, television sets etc.
  9. 9. EFFECTS OF WASTE IF NOT MANAGED  Affects on human health  Affects on animals health  Affects our climate  Rise in global temperature  Rise in sea levels  Affects our coastal and marine environment
  10. 10. REDUCE, REUSE, RECYCLING AND RECOVERY OF WASTE
  11. 11. REDUCE AND REUSE OF WASTE  Process of reducing the amount of waste produced by a person or a society.  To reuse a item that again after it has been used. Ways to reduce and reuse waste:  Say no to plastic bags  Use cloth diapers for your baby  Buy reusable water bottles  Use rechargeable batteries  Give away or sell things you do not use  Save and reuse gift bags that you receive
  12. 12. RECYCLING OF WASTE  Process that takes waste items and turns them into raw materials that can be made into new products. Tips to recycle waste:  Sort waste in recycling bins that is provided in your area.  Recycle your newspapers.  Find out what recycling programmes or centers exist in your area.  Set up your own recycling system.  Spread the word.
  13. 13. RECOVERING OF WASTE  Using waste to replace other non-waste materials to achieve a beneficial outcome in an environmental sound manner. Ways of recovering of waste:  Grass clippings.  Vegetable waste.  Heat recovery from your home.
  14. 14. TREATMENT, PROCESS ING AND DISPOSAL OF WASTE
  15. 15. TREATMENT OF WASTE  Activities required to ensure that waste has the least practicable impact on the environment. Forms of waste treatment:  Agricultural wastewater treatment  E.g. Liquid animal waste  Industrial wastewater treatment  E.g. Wet wastes from manufacturing industry  Sewage treatment  E.g. Human waste  Radioactive waste treatment  E.g. Contaminated waste.
  16. 16. PROCESSING OF WASTE  Labour intensive hand picking operations. Method of sorting will depend on the following factors:  The nature of the waste  The ease of separation  Quality of the waste to start a different cycle
  17. 17. DISPOSAL OF WASTE Methods to dispose of waste:  Landfills  Burying waste  Incineration  Controlled burning at high temperatures  Recycling
  18. 18. RADIOACTIVE WASTE DISPOSAL Methods of disposal of radioactive waste:  Ducrete  Placing radioactive waste in concrete
  19. 19. RADIOACTIVE WASTE DISPOSAL  Ocean floor disposal  Placing radioactive material in bottom of ocean floor where it can not be disturbed.
  20. 20. ANY QUESTIONS?

×