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AIRAIR
POLLUTIONPOLLUTION
CONTROLCONTROL
NATURAL ATMOSPHERICNATURAL ATMOSPHERIC
CLEANING PROCESSCLEANING PROCESS
DISPERSION –DISPERSION – REDUCES THEREDUCES THE
CONCENTRATION OF POLLUTANTS IN ANYCONCENTRATION OF POLLUTANTS IN ANY
ONE PLACE.ONE PLACE.
GRAVITATIONAL SETTELINGGRAVITATIONAL SETTELING
FLOCCULATION AND AGGLOMERATIONFLOCCULATION AND AGGLOMERATION
ABSORPTIONABSORPTION
ADSORPTIONADSORPTION
PHOTOSYNTHESISPHOTOSYNTHESIS
AIR POLLUTION CONTROLAIR POLLUTION CONTROL
STRATEGIESSTRATEGIES
AIR QUALITY MANAGEMENTAIR QUALITY MANAGEMENT
STRATEGYSTRATEGY
EMISSION CONTROL STRATEGYEMISSION CONTROL STRATEGY
FINANCIAL INCENTIVE STRATEGYFINANCIAL INCENTIVE STRATEGY
COST BENEFIT STRATEGYCOST BENEFIT STRATEGY
ENGINEERING CONTROLENGINEERING CONTROL
CONCEPTSCONCEPTS
CHANGE OR MODIFY THE DESIGN OFCHANGE OR MODIFY THE DESIGN OF
THE WHOLE OR PART OF THE PROCESSTHE WHOLE OR PART OF THE PROCESS
CHANGE OR MODIFY THE OPERATINGCHANGE OR MODIFY THE OPERATING
CONDITION OF THE PROCESSCONDITION OF THE PROCESS
CHANGE OF RAW MATERIALCHANGE OF RAW MATERIAL
AND FUELAND FUEL
INSTALL APPROPRIATE POLLUTIONINSTALL APPROPRIATE POLLUTION
REMOVAL DEVICES OR SYATEMREMOVAL DEVICES OR SYATEM
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
POLLUTANTS CONTROL DEVICES/SYSTEM
PARTICULATE
MATTERS
•GRAVITY SETTLER
•CYCLONE SEPARATOR
•ELECTROSTATIC
SEPERATOR
•SURFACE FILTER
•DEPTH FILTERS
•SCRUBBER
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
A. GRAVITY SETTLER
- A LONG CHAMBER THROUGH WHICH
CONTAMINATED GAS PASSES SLOWLY AND
THE PARTICLES ARE SETTLED AT THE BOTTOM
BY GRAVITY
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
B. CYCLONE
SEPARATOR
- THE GAS ENTER SIPRALS
AROUND THE OUTER PART
OF CYLINDRICAL BODY
- IN THE SPIRAL , SOLID
PARTICLES ARE DRIVEN TO
THE WALL AND ATTACH TO
EACH OTHER, FORMING
AGGLOMERATES.
- THE LARGER AGGLOMERATE
SLIDES DOWN AND IS
COLLECTED.
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
C . ELECTROSTATIC
SEPARATOR
- FOR PARTICLES BELOW 5
MICROMETER
- PARTICLES GET CHARGED
AND ATTRACTED TO THE
WALL ELECTROSTATICALLY
- THE PARTICLES
AGGLOMERATE AND IA
COLLECTED.
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
D . SURFACE FILTERS
- CAN BE A PIECE OF CLOTH,
WIRE MESH OR FILTER PAPER
WITH HOLES SMALLER THAN
THE DIMENSION OF
PARTICLES TO BE RETAINED
- THE PARTICLES COLLECT IN
THE FORM OF DUST ON THE
SURFACE
- FOR INDUSTRIAL, THE GAS
FILTER IS GENERALLY CALL
BAG HOUSE.
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
E . DEPTH FILTER
- THE MECHANISM OR
OPERATION IS LIKE A
CIGARETTE FILTER
F . SCRUBBER
- THE DIRTY GAS IS WETTED
WITH A WETTING LIQUID
AND THE PARTICLES BECOME
HEAVY AND CAN BE
REMOVED.
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
POLLUTANTS CONTROL DEVICES/SYSTEM
SULPHUR OXIDES • GAS ABSORPTION AND
STRIPPING
•SODA SCRUBBING
•OTHER ALTERNATIVES
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
POLLUTANTS CONTROL DEVICES/SYSTEM
NITROGEN
OXIDES
• LOW NOX COMBUSTION
TECHNOLOGY
•DENITRIFICATION
TECHNOLOGY
ACID GASES • WET SCRUBBING
CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM
POLLUTANTS CONTROL DEVICES/SYSTEM
TOXIC GASES • THERMAL COMBUSTION
• CATALYST AND SELECT
REAGENTS.
• ADSORPTION
•ABSORPTION
ODOUR • MODIFICATION OF PROCESS
•ADSORPTION
•COMBUSTION
•ODOUR MASKING
•INJECTING SUBSTANCES
MOBILE SOURCE CONTROLMOBILE SOURCE CONTROL
- CAN BE CONTROLLED THROUGH VARIOUS
METHOD.
- THE MAIN METHOD USED CATALYTIC
CONVERTERS.
- REDUCE POLLUTION FROM MOBILE
SOURCE ARE BY
a. DESIGNING ENVIRONMENTAL
b. FRIENDLY VEHICLES
c. USING LESS POLLUTING FUEL SUCH LPG
AND FUEL TECHNOLOGY
MONITORING AIR POLLUTIONMONITORING AIR POLLUTION
OBJECTIVE
a.TO ENSURE COMPLIANCE
WITH ENVIROMENTAL
REGULATIONS
b.AS A MANAGEMENT TOOL
FOR POLLUTION STRATEGY
c.FOR RESEARCH AND
DEVELOPMENT
MONITORING AIR POLLUTIONMONITORING AIR POLLUTION
AMBIENT AIR SAMPLING
a.TYPES
OF
SAMPLING
a. EXTRACTIVE METHOD
b. IN-SITU MONITORING
c. REMOTE SENSING
MONITORING AIR POLLUTIONMONITORING AIR POLLUTION
AMBIENT AIR SAMPLING
b. AMBIENT
MONITORING OF
PARTICULATE
MATTER
- AIRBORNE PARTICULES ARE
COMMONLY COLLECTED USING A
20 CM BY 25CM RECTANGULAR
SHEET OF GLASS FIBER FILTER
MEDIA HELD ONTO A SUPPORT
SCREEN AND CONNECTED TO A
HIGH VOLUME VACCUM PUMP
FOR DRAWING SAMPLES
- FOR PARTICLES BELOW 10
MICROMETER, THE PM 10
SAMPLER IS USED TO COLLECT
FINE PARTICLES.
MONITORING AIR POLLUTIONMONITORING AIR POLLUTION
AMBIENT AIR SAMPLING
b. AMBIENT
MONITORING OF
GASEOU
POLLUTANTS
- ABSORPTION TRAIN
- IMPREGNATED FILTERS
- DIFFUSION TUBES
- SOLID ADSORBENT TUBE
- GRAB SAMPLING
REGULATION RELATED AIRREGULATION RELATED AIR
POLLUTIONPOLLUTION
ENVIROMENTAL
REGULATION IN
MALAYSIA
a. ENVIROMENTAL QUALITY
CLEAN AIR REGULATION
1978
b. ENVIROMENTAL QUALITY
( CONTROL OF LEAD
CONCENTRATION IN
MOTOR GASOLINE
REGULATION 1985
c. ENVIROMENTAL QUALITY
(MOTOR VEHICLE NOISE )
REGULATION 1987
REGULATION RELATED AIRREGULATION RELATED AIR
POLLUTIONPOLLUTION
ENVIROMENTAL
REGULATION IN
MALAYSIA
E. ENVIROMENTAL QUALITY
(PROHIBITION ON THE USE
OF
CHLOROFLUOROCARBONS
& OTHER GASES AS
PROPELANTS & BLOWING
AGENTS ) ORDER 1993

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Air pollutin control 1

  • 2. NATURAL ATMOSPHERICNATURAL ATMOSPHERIC CLEANING PROCESSCLEANING PROCESS DISPERSION –DISPERSION – REDUCES THEREDUCES THE CONCENTRATION OF POLLUTANTS IN ANYCONCENTRATION OF POLLUTANTS IN ANY ONE PLACE.ONE PLACE. GRAVITATIONAL SETTELINGGRAVITATIONAL SETTELING FLOCCULATION AND AGGLOMERATIONFLOCCULATION AND AGGLOMERATION ABSORPTIONABSORPTION ADSORPTIONADSORPTION PHOTOSYNTHESISPHOTOSYNTHESIS
  • 3. AIR POLLUTION CONTROLAIR POLLUTION CONTROL STRATEGIESSTRATEGIES AIR QUALITY MANAGEMENTAIR QUALITY MANAGEMENT STRATEGYSTRATEGY EMISSION CONTROL STRATEGYEMISSION CONTROL STRATEGY FINANCIAL INCENTIVE STRATEGYFINANCIAL INCENTIVE STRATEGY COST BENEFIT STRATEGYCOST BENEFIT STRATEGY
  • 4. ENGINEERING CONTROLENGINEERING CONTROL CONCEPTSCONCEPTS CHANGE OR MODIFY THE DESIGN OFCHANGE OR MODIFY THE DESIGN OF THE WHOLE OR PART OF THE PROCESSTHE WHOLE OR PART OF THE PROCESS CHANGE OR MODIFY THE OPERATINGCHANGE OR MODIFY THE OPERATING CONDITION OF THE PROCESSCONDITION OF THE PROCESS CHANGE OF RAW MATERIALCHANGE OF RAW MATERIAL AND FUELAND FUEL INSTALL APPROPRIATE POLLUTIONINSTALL APPROPRIATE POLLUTION REMOVAL DEVICES OR SYATEMREMOVAL DEVICES OR SYATEM
  • 5. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM POLLUTANTS CONTROL DEVICES/SYSTEM PARTICULATE MATTERS •GRAVITY SETTLER •CYCLONE SEPARATOR •ELECTROSTATIC SEPERATOR •SURFACE FILTER •DEPTH FILTERS •SCRUBBER
  • 6. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM A. GRAVITY SETTLER - A LONG CHAMBER THROUGH WHICH CONTAMINATED GAS PASSES SLOWLY AND THE PARTICLES ARE SETTLED AT THE BOTTOM BY GRAVITY
  • 7. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM B. CYCLONE SEPARATOR - THE GAS ENTER SIPRALS AROUND THE OUTER PART OF CYLINDRICAL BODY - IN THE SPIRAL , SOLID PARTICLES ARE DRIVEN TO THE WALL AND ATTACH TO EACH OTHER, FORMING AGGLOMERATES. - THE LARGER AGGLOMERATE SLIDES DOWN AND IS COLLECTED.
  • 8. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM C . ELECTROSTATIC SEPARATOR - FOR PARTICLES BELOW 5 MICROMETER - PARTICLES GET CHARGED AND ATTRACTED TO THE WALL ELECTROSTATICALLY - THE PARTICLES AGGLOMERATE AND IA COLLECTED.
  • 9. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM D . SURFACE FILTERS - CAN BE A PIECE OF CLOTH, WIRE MESH OR FILTER PAPER WITH HOLES SMALLER THAN THE DIMENSION OF PARTICLES TO BE RETAINED - THE PARTICLES COLLECT IN THE FORM OF DUST ON THE SURFACE - FOR INDUSTRIAL, THE GAS FILTER IS GENERALLY CALL BAG HOUSE.
  • 10. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM E . DEPTH FILTER - THE MECHANISM OR OPERATION IS LIKE A CIGARETTE FILTER F . SCRUBBER - THE DIRTY GAS IS WETTED WITH A WETTING LIQUID AND THE PARTICLES BECOME HEAVY AND CAN BE REMOVED.
  • 11. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM POLLUTANTS CONTROL DEVICES/SYSTEM SULPHUR OXIDES • GAS ABSORPTION AND STRIPPING •SODA SCRUBBING •OTHER ALTERNATIVES
  • 12. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM POLLUTANTS CONTROL DEVICES/SYSTEM NITROGEN OXIDES • LOW NOX COMBUSTION TECHNOLOGY •DENITRIFICATION TECHNOLOGY ACID GASES • WET SCRUBBING
  • 13. CONTROL DEVICES & SYSTEMCONTROL DEVICES & SYSTEM POLLUTANTS CONTROL DEVICES/SYSTEM TOXIC GASES • THERMAL COMBUSTION • CATALYST AND SELECT REAGENTS. • ADSORPTION •ABSORPTION ODOUR • MODIFICATION OF PROCESS •ADSORPTION •COMBUSTION •ODOUR MASKING •INJECTING SUBSTANCES
  • 14. MOBILE SOURCE CONTROLMOBILE SOURCE CONTROL - CAN BE CONTROLLED THROUGH VARIOUS METHOD. - THE MAIN METHOD USED CATALYTIC CONVERTERS. - REDUCE POLLUTION FROM MOBILE SOURCE ARE BY a. DESIGNING ENVIRONMENTAL b. FRIENDLY VEHICLES c. USING LESS POLLUTING FUEL SUCH LPG AND FUEL TECHNOLOGY
  • 15. MONITORING AIR POLLUTIONMONITORING AIR POLLUTION OBJECTIVE a.TO ENSURE COMPLIANCE WITH ENVIROMENTAL REGULATIONS b.AS A MANAGEMENT TOOL FOR POLLUTION STRATEGY c.FOR RESEARCH AND DEVELOPMENT
  • 16. MONITORING AIR POLLUTIONMONITORING AIR POLLUTION AMBIENT AIR SAMPLING a.TYPES OF SAMPLING a. EXTRACTIVE METHOD b. IN-SITU MONITORING c. REMOTE SENSING
  • 17. MONITORING AIR POLLUTIONMONITORING AIR POLLUTION AMBIENT AIR SAMPLING b. AMBIENT MONITORING OF PARTICULATE MATTER - AIRBORNE PARTICULES ARE COMMONLY COLLECTED USING A 20 CM BY 25CM RECTANGULAR SHEET OF GLASS FIBER FILTER MEDIA HELD ONTO A SUPPORT SCREEN AND CONNECTED TO A HIGH VOLUME VACCUM PUMP FOR DRAWING SAMPLES - FOR PARTICLES BELOW 10 MICROMETER, THE PM 10 SAMPLER IS USED TO COLLECT FINE PARTICLES.
  • 18. MONITORING AIR POLLUTIONMONITORING AIR POLLUTION AMBIENT AIR SAMPLING b. AMBIENT MONITORING OF GASEOU POLLUTANTS - ABSORPTION TRAIN - IMPREGNATED FILTERS - DIFFUSION TUBES - SOLID ADSORBENT TUBE - GRAB SAMPLING
  • 19. REGULATION RELATED AIRREGULATION RELATED AIR POLLUTIONPOLLUTION ENVIROMENTAL REGULATION IN MALAYSIA a. ENVIROMENTAL QUALITY CLEAN AIR REGULATION 1978 b. ENVIROMENTAL QUALITY ( CONTROL OF LEAD CONCENTRATION IN MOTOR GASOLINE REGULATION 1985 c. ENVIROMENTAL QUALITY (MOTOR VEHICLE NOISE ) REGULATION 1987
  • 20. REGULATION RELATED AIRREGULATION RELATED AIR POLLUTIONPOLLUTION ENVIROMENTAL REGULATION IN MALAYSIA E. ENVIROMENTAL QUALITY (PROHIBITION ON THE USE OF CHLOROFLUOROCARBONS & OTHER GASES AS PROPELANTS & BLOWING AGENTS ) ORDER 1993