Waste Management

1. WASTE MANAGEMENT
Created by: Elshe de Wet

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. 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. WHAT IS WASTE
 An unusable/ unwanted substance or material
 Rejected as worthless
 E.g. Rubbish, trash, garbage or junk

5. WHAT IS WASTE MANAGEMENT
 Collection
 Transportation
 Disposal
 Treatment
 Storage
 Processing
 Source separation
 Transfer

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. 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. 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. 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

11. REDUCE, REUSE,
RECYCLING AND
RECOVERY OF WASTE

13. 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

15. 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.

17. 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.

18. TREATMENT, PROCESS
ING AND DISPOSAL OF
WASTE

19. 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.

20. 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

21. DISPOSAL OF WASTE
Methods to dispose of waste:
 Landfills
 Burying waste
 Incineration
 Controlled burning at high temperatures
 Recycling

22. RADIOACTIVE WASTE DISPOSAL
Methods of disposal of radioactive waste:
 Ducrete
 Placing radioactive waste in concrete

23. RADIOACTIVE WASTE DISPOSAL
 Ocean floor disposal
 Placing radioactive material in bottom of ocean
floor where it can not be disturbed.

24. ANY QUESTIONS?