Energy resources and environmental pollution (L6) Flashcards
Name one method of controlling pollution in general
Legislations
How do legislations control pollution
Control activities that cause pollutions
Encourages individuals to do their bit
Remove financial disadvantage suffered by companies that pay to control pollution when others do not
Why doesnt vehicle tax not always work
Based on CO2 emission per Km but does not take into account distance traveled
What is the clean air act
Ban the release of excessive smoke and burning in urban smokeless zones
MOT checked emissions
Garden bonfires banned in urban areas
What is montreal protocol
International agreement
Phasing out CFCs
Tackle stratospheric ozone depletion
What is the kyoto protocol
Set targets on GHG emissions
Not very successful as many countries didn’t meet their targets
What are the problems with many pollutants
The are transboundary so cross boarders so one source could be somewhere else from the problem
What is age Helsinki protocol 1985
Reduce sulphur emissions
reduce emission by 30% by 1995
all targets were met
What is the Gothenburg protocol
Acidification, eutrophication and ground level ozone
Cut sulphur nitrogen oxides ammonia particles
What is landfill tax
EU landfall directive - Amount of biodegradable waste reduced by 50% in 2009 and 35% in 2016
Encourages recycling
Reduces pollution and emissions from landfall sites
What is fuel desulfurisation
Natural gas-remove hydrogen sulfide
Crude oil-remove during distillation
Coal-iron pyrite, crushing
How does wet flue gas desulfurisation work
SOx are dissolved in a wet scrubber spray
How does dry flue gas desulfurisation work
SOx are reacted with calcium carbonate to produce calcium sulfate
Summarise the use of Flue gas desulfrisation
Reduces SO2 emissions
Produces a useful product
Increases demand for limestone which has to be quarried
How do we control oxides of nitrogen
Catalytic converters, platinum catalyst reduces nitrogen oxide
Urea sprays
