URBAN WASTE
PROJECT
,What is waste?
Waste is any substance which is discarded after primary use, or is worthless, defective and of no use
There are many types:
Biodegradable waste – eg food waste
Recyclable waste – eg paper, cardboard, glass, tin
Inert waste – eg rocks, sand, construction waste
Electrical waste – eg kitchen appliances, computers, TVs, phones, cables
Composite waste – eg toys, clothing, drinks cartons
Toxic waste – chemicals such as pesticides
Biomedical waste – eg prescription drugs, infected dressings, sharps
, The different sources of waste
Source Example Problem
Domestic Food, plastics, textiles, electrical Huge amounts of varying wast
needs separating to process it
Biodegradable waste can relea
methane
Industrial Hazardous waste, packaging Chemicals may get into water
sources and soil
Commercial Food waste, electrical, paper Food waste smells and attracts
and vermin
Construction and demolition Dirt, sand, bricks, wood, steel Bulky and quickly fills up landfi
Institutional waste Biomedical waste, paper, food Hospital waste may be
contaminated or radioactive an
cause disease or harm
Municipal/open spaces Street sweepings, tree trimmings, Dead animals smell and attract
dead animals vermin
PROJECT
,What is waste?
Waste is any substance which is discarded after primary use, or is worthless, defective and of no use
There are many types:
Biodegradable waste – eg food waste
Recyclable waste – eg paper, cardboard, glass, tin
Inert waste – eg rocks, sand, construction waste
Electrical waste – eg kitchen appliances, computers, TVs, phones, cables
Composite waste – eg toys, clothing, drinks cartons
Toxic waste – chemicals such as pesticides
Biomedical waste – eg prescription drugs, infected dressings, sharps
, The different sources of waste
Source Example Problem
Domestic Food, plastics, textiles, electrical Huge amounts of varying wast
needs separating to process it
Biodegradable waste can relea
methane
Industrial Hazardous waste, packaging Chemicals may get into water
sources and soil
Commercial Food waste, electrical, paper Food waste smells and attracts
and vermin
Construction and demolition Dirt, sand, bricks, wood, steel Bulky and quickly fills up landfi
Institutional waste Biomedical waste, paper, food Hospital waste may be
contaminated or radioactive an
cause disease or harm
Municipal/open spaces Street sweepings, tree trimmings, Dead animals smell and attract
dead animals vermin
