Urban waste and its disposal Flashcards
What are the 7 different types of waste?
Domestic waste (household waste)
Municipal waste (council waste eg. streets)
Commercial waste (offices, retail)
Animal and vegetable waste
institutional waste (schools, hospitals)
Bulky waste (domestic furniture)
Street sweeping (paper, cardboard, plastic)
What category of waste is ashes when produced in large quantities at power generated plants and factories?
industrial waste
Give examples of biodegradable waste.
food waste/ green waste
Give examples of recyclable waste
paper/ cardboard/ glass
Give examples of inert waste
construction and demolition waste/ dirt/ rocks
Give examples of electrical waste
electrical appliances
Give examples of composite waste
clothing/ toys/ drink cartons
Give examples of hazardous waste
paint/ tyres/ batteries
Give examples of toxic waste
pesticides/ herbicides
Give examples of biomedical waste
expired prescription drugs
Define waste stream
the flow of waste from its source through to final disposal
Why does waste stream need to be managed?
- air pollution
- loss of recyclable resources
- contamination of water and land
- risk to human health
What is landfill?
holes in the ground to dump rubbish then covered over with soil
Give advantages of landfill.
easily managed
cost-effective and relatively safe
Give disadvantages of landfill
smell is unpleasant
produces methane
what is incineration?
factories burning waste
Give advantages of incineration
long-life span
requires much less land than landfills
Give disadvantages of incineration
particulate emissions require managing
chimney emissions can be toxic if not managed
What are the advantages of recycling?
means less landfill
all recyclable materials in one bin is popular and convenient
What are the disadvantages of recycling?
public refuse if separately charged
public separation is inconvenient and prone to error
Define the global waste trade.
The international trade of waste between countries of its disposal, recycling or further treatment, predominantly from HDEs to LDEs.
How many mountains of rubbish tens of meters high was there in the Philippines?
6
How many people died when the 2000 rainstorm in the Philippines caused the mountains of rubbish to collapse?
200
How many people suffered with health problems such as typhoid and cholera because of the collapse of the rubbish in the Philippines?
4,000
