IPEC : Odour Control Technology
Odour control systems
Applications of odour control systems
Consulting
Activated Carbon

Odour control systems  

  
IPEC is a total odour control solutions provider.

IPEC has the ability to deliver your full-service custom-designed abatement solution, from initial design, needs analysis and planning through installation, training and operations. We integrate emerging processes and innovative engineering into systems that maximize efficiency, minimize operating costs, and most importantly, solve your specific problem.

In order to treat the odour problem different systems and technologies can be implemented. The main technology IPEC uses is based on adsorption/chemisorption on granular or pelletised activated carbon.

The systems may require pre-treatment to allow the activated carbon to work under optimal conditions. In case dust might be present a mechanical filter will be installed, if free water droplets are expected a demister will be integrated in the system, etc.
  

In most cases the granular or pelletised activated carbon is installed in a fixed bed with the liquid or gas passing through the bed. The compounds to be removed are retained on the activated carbon.
The carbon is used until exhaustion. It can then be reactivated (normally off-site), in-situ regenerated or replaced with new carbon.

Adsorbers: Most adsorbers are pressure vessels constructed in carbon steel, stainless steel or plastic. Large systems for drinking water are often constructed in concrete. In some cases, a moving or pulsed bed adsorber is employed to optimise the use of the granular activated carbon.
Design information: The main factors in the design of an adsorption system are the carbon consumption (amount of carbon required to treat the liquid or gas) and the contact time (for a fixed flow rate, the contact time is directly proportional to the volume of carbon).
Treated activated carbon: The activated carbon used is determined in relation to the nature of the odourous compound present and can be supplied in the form of either a standard untreated grade, or a chemically impregnated type for enhanced loading capacity and removal efficiency.

Carbon filters

Here is a list of some carbon filters that are available from IPEC:

  • Manhole carbon filters: will trap odours from sewage gravity lines before the escape from the lifting eyes in the manhole covers.
  • Static adsorbers with one-way carbon: will trap odours from fully sealed small sewage storage tanks.
    Range: 50 to 2000m3/hr filled with 50 to 750 kg of activated carbon.
  • Dynamic adsorption systems: These systems will treat a much wider range of air flows and will always include a fan to extract the calculated amount of air from an odour source. The systems are filled with caustic and water, or water only, regenerable carbon.
    The capacity range goes from 1.000 to 30.000 m3/hr of air using 500 up to 10.000 kg of activated carbon.
    Typical bed-life before regeneration is one year. Systems need to be stopped a few days per year for regeneration. Regeneration is done in-situ.
  • Fully automated and continuous systems: These systems are unique and are fully automated.
    The systems will treat up to 60.000 m3/hr in one system. The calculated amount of air is distributed over a number of carbon beds installed in a horizontal adsorber. Electronic devices detect saturation of the carbon. An underground regeneration system will wash and regenerate each bed with caustic and water, or water only depending on the choice of activated carbon. The system does not require any operator presence and continues to treat the flow of air during the regeneration process. The systems can handle H2S levels up to 100 ppm with less than 1 ppm at the outlet. The operation costs, inclusive the depreciation of the adsorption media and the chemicals used, are the lowest possible. (for more info, click here!)

Other odour control systems

  • Air scrubbers:
  • Aluminium dome-shaped panels/roofs:

System options

We can offer a lot of options to your system, such as:

  • PLC based regeneration system
  • Electronic H2S sensors
  • Dust/grease filters
  • Mist elimination
  • Caustic feed tanks
  • Wash water holding tanks
  • Water regenerable tanks
  • Water generable tanks
  • Motor control - starter
  • Interconnecting ductwork
  • Instrumentation
  • Sample points
  • etc.