As you undoubtedly know, there are several systems on the market for the reduction of toxic and/or undesirable emissions, like:

• Active Carbon Filter Technique
  (note: effective only for a short period of time - when properly applied - because it quickly loses effectiveness when saturated; needs therefore lots of maintenance and is expensive)
• Masking Techniques
  (note: a fake solution only; just masking one odor by another more pungent one; does not remove anything from the exhaust gas but adds one more component to the contamination; generally essential oils are used)
• Wet and Acid Scrubbers
  (note: for certain chemical compounds a reasonable effect can be achieved; has a limited application)
• Biobeds
  (note: very sensitive system; balance is difficult to maintain; requires continuous attention; not reliable; once installed the operational cost is low)
• Ozone Technique
  (effective in certain cases but extremely difficult to maintain correct dosage; is toxic by itself; expensive systems)
• Afterburners
  (the most expensive system in terms of energy consumption; sometimes used to get rid of certain very persistent pollutants)

None of the above systems is in fact ideal; we have indicated in the notes the pro´s and con´s of each system as we see them.

Now a new system, microgas washing, has been introduced with an innovative approach. Below please find a brief description.

The very core of emission problems is the fact that pollutants in the gaseous phase are free roaming molecules and therefore cannot be removed by conventional filtering techniques. Micro gaswashing solves this problem by encapsulating the pollutant molecules in tiny droplets which can be removed by dedicated filters. To this end a special fluid, FF-AR, is sprayed into the exhaust gas stream where it thanks to its unique properties binds and encapsulates the pollutants. At the end of the exhaust stack filters remove the FF-AR/pollutant droplets so that clean air leaves the exhaust.

FF-AR, the Key to the System

• Binds both Polar and Non-Polar Compounds
• Is Bio-Degradable / Non-Hazardous
• Water Soluble
• Scientifically backed by leading University in the Netherlands
• Proven Technology

Micellar Structure	Overall Droplet Structure

FF-AR Delivery System

• Nozzle Spraying Technique
• Binding / Encapsulating
• Filter Technique
• Continuous Measuring (Closed Loop)

• Less maintenance - doesn´t form any new chemical compound - 2 sec contact time to formdroplets - range 3-12 micron
• System can be automated with sensors to measure various pollutants and control over pump
• Types of nozzles for industrial 15,000m³ for restaurants etc 5,000m³
• Mixing ratio as guidline in case of reduction of smell by 85% for industrial 1:20 and restaurants 1:10

Filter Technique

• Pre-Filtering (Grease, PM)
• Mechanical Filtering
• Dry Electrostatic Filtering
• Wet Electrostatic Filtering

Practical Issues

• Fact Finding
  • What Pollutants / Quantity Emitted
  • Exhaust Gas:
    - Volume
    - Temperature
    - Relative Humidity
  • Dimensions of Exhaust Stack
• Testing
  • Prove System Performance on Small Scale
  • Analyze Blank and Treated Sample by GC
  • Optimize Fluid Composition
  • Gas Chromatographic Tests - 2,000m³ taken out from the chimney
• Engineering
  • Determine Optimum System Set Up
  • Ducting Requirements
• Installation / Maintenance
  • Standard Installation Procedures
  • Maintenance of Limited Complexity

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