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ACA systems clean industrial exhaust air of a wide range of pollutants, in particular volatile organic compounds (VOC’s) and hydrogen sulphide (H2S).

The VOC or H2S laden air is directed through one or more beds of carbon. The air can be pre-filtered, dehumidified or cooled if necessary to assist the adsorption. The carbon takes the form of small granules or extruded (8mm long) pieces. Very high rates of adsorption can occur, such that the exhaust air is essentially free of VOC’s or H2S. The carbon is replaced when its working capacity has been reached.

If there are high loadings of VOC it becomes uneconomic to replace the carbon after one use. In such cases regenerable systems are used. These systems have a duty and a standby bed. At any given time the duty bed is adsorbing VOC’s while the standby bed is being regenerated by steam stripping.

ACA systems have very wide application, ranging from bulk liquid hydrocarbon storage and handling facilities (tank farms) to sewage transport systems odour control.

 


Reference List

Non-regenerable Carbon Systems– Sewage/Waste Water
Date Client Location Application
2002 Redland Water Cleveland, Qld Inlet Works
2002 Redland Water Cleveland, Qld RAS Screens
2001 Sydney Water Hornsby Heights, NSW Inlet screens, fermenter
2001 Sydney Water West Hornsby, NSW Inlet screens, fermenter
2001 Sydney Water Bangor, NSW Pumping Station
2000 Abigroup Asset Services – Water Nunawading, VIC Vent
1998 Transfield Maintenance Mitcham, VIC Vent
1998 ESI/Clough Subiaco, WA Enersludge Process
1995 Yarra Valley Water Wonga Park, VIC Vent
1995 Yarra Valley Water Coldstream, VIC Vent
1995 Yarra Valley Water Lilydale, VIC Vent
1995 Eurobodalla Shire Council Bateman’s Bay, NSW Pumping Station
1995 Caltex Service Station Wyong, NSW Vent
1990 F3 Motorway Mt White, NSW Vent
Non-regenerable Carbon Systems - VOC's
Date Client Location Application
1998 RLA Polymers Kilsyth, VIC Plastic manufacture
1996 Monsanto Brooklyn, VIC Herbicide storage
1996 Ajax Chemicals Auburn, NSW Drum-filling
1995 Iplex Rosehill, NSW PVC pipe facility
1995 Australian Navy Chowder Bay, NSW Diesel fuel installation
 
Regenerable Carbon Systems - Chemical Storage Operations
Date Client Location Application
1999 Kertih Terminals Kertih, Malaysia Benzene, p- Xylene
1999 Kertih Terminals Kertih, Malaysia Ethylene DiChloride
1997 VOPAK Jurong, Singapore Solvents, Acrylates, Aromatics
1996 Huntsman Chemical Co. West Footscray, VIC Benzene, Styrene, Toluene, BTX
1994 VOPAK Botlek, Holland, Plant C Aromatics
1993 VOPAK Botlek, Holland, Plant B Acrylonitrite, Aromatics, EDC
1993 Paktank Botlek, Holland Solvents, Aromatics, Monomers
1992 ICI Australia Botany, N.S.W. Ethylene DiChloride
1992 Panocean Botlek, Holland Solvents, Aromatics, Monomers
1990 VOPAK Botlek, Holland, Plant A Styrene, BTX, Benzene, Xylene
1987 Terminals Pty Ltd Botany, N.S.W. Plant B Solvents, Acrylates, Aromatics, Monomers
1982 Terminals Pty Ltd Footscray, Vic. Plant C Solvents, Acrylates, Aromatics, Monomers
1980 Terminals Pty Ltd Footscray, Vic. Plant B Solvents, Acrylates, Aromatics, Monomers
1978 Terminals Pty Ltd Botany, N.S.W. Plant A Solvents, Acrylates, Aromatics, Monomers
1978 VOPAK Botany, N.S.W. Plant A Solvents, Acrylates, Aromatics, Monomers

Case History

Sydney Water Corporation
Bangor SPS Odour Control System

Location Bangor, NSW
Completion Date   2001
Project Duration   6 months

Environmental Group Scope of Work:
Design, manufacture and install an activated carbon bed filter at Bangor Sewage Pumping Station.

Equipment Supplied:
  • Civil works
  • Stainless Steel ducting
  • Prefilter
  • FRP carbon bed vessel
  • Fans and silencers
  • Stainless steel exhaust stack
  • Instrumentation
  • Access platform
  • Switchgear and control assembly
  • Mechanical and electrical installation
  • Commissioning and performance testing
Design specifications:
  • Ventilation rate : 2000 m3/hr
  • H2S inlet load : up to 5 ppm
  • H2S outlet concentration : max. 0.05 ppm

 

 
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