PPT - Control of Air Pollutants Computer Science Engineering (CSE) Notes | EduRev

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Control of Air Pollutants
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Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Page 3


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Control of Air Pollutants
Particulates
 Particulate matter the most obvious form of air
pollution – therefore receives the most effort in
pollution reduction measures
 Process Modifications
 fuel substitution
 encapsulation and wet operation can also greatly
reduce the amount of fugitive particles emanating
from a potential pollutant source
Page 4


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Control of Air Pollutants
Particulates
 Particulate matter the most obvious form of air
pollution – therefore receives the most effort in
pollution reduction measures
 Process Modifications
 fuel substitution
 encapsulation and wet operation can also greatly
reduce the amount of fugitive particles emanating
from a potential pollutant source
Control of Air Pollutants
Particulates – Cyclones
 separation by centrifugation - most
common form of particulate removal
 gas is spun rapidly - heavier particulate
matter to collect on outside of separator by
centrifugal force, where it is collected and
removed
 cyclone separator
Page 5


Control of Air Pollutants
Control of Air Pollutants
Air Quality Standards
 Air quality standards are provided by many groups
and organisations such as:
 National Environment Protection Council
Standards
 WHO
 US EPA
 NSW EPA/DECC standards
 Standards Australia
Control of Air Pollutants
Particulates
 Particulate matter the most obvious form of air
pollution – therefore receives the most effort in
pollution reduction measures
 Process Modifications
 fuel substitution
 encapsulation and wet operation can also greatly
reduce the amount of fugitive particles emanating
from a potential pollutant source
Control of Air Pollutants
Particulates – Cyclones
 separation by centrifugation - most
common form of particulate removal
 gas is spun rapidly - heavier particulate
matter to collect on outside of separator by
centrifugal force, where it is collected and
removed
 cyclone separator
Control of Air Pollutants
dirty
gas inlet
cleaned  gas
outlet
particulate outlet