A bioscrubber uses living microbes to consume pollutants from an air stream. This technology will efficiently remove gasses that cause odors at wastewater treatment plants such as H2S, dimethyl sulfide (C2H6S), carbonyl sulfide (COS), and methanethiol (CH4S). Bioscrubbers can effectively remove aldehydes, organic acids, nitrous oxide (N2O), sulfur dioxide (SO2), and a range of water-soluble VOCs. Monroe Environmental will custom-design a biological scrubber for each application and manufacture it in house. Units may range from a simple bio-filter tank with drain to a complete electronically controlled biological scrubbing system employing blower, liquid pumps, media with supporting structure, and a sump with nutrient addition and pH control to treat water that is distributed to the biological film living on the media.
Advantages of Biological Air Pollution Control
- Often less expensive: the pollutants in the air stream feed and sustain the microorganisms that consume them. Avoids the expense of continually adding scrubbing chemicals.
- The process is “green”. It does not produce NOx or CO like combustors do. Chemicals requiring disposal are not generally produced. The products of a bioreaction in which microbes consume hydrocarbons are mainly CO2 and water.
Efficient Design
Monroe Environmental experts will analyze your application to determine if a biological solution is appropriate. Extremes of hot and cold will limit the effectiveness of microbes. Most microbes thrive in a moist environment that is around neutral pH, near 7. Monroe will analyze the variables of temperature, moisture, pH, nutrient mix, and residence time to achieve conditions that will support a microbial population that will efficiently consume and remove the air pollutants that occur in a particular application.
Monroe Bioscrubber Features
- Capacity to 75,000 CFM
- Efficiency to 99%
- Construction available in FRP, PVC, polypropylene, polyethylene, mild steel, stainless steel, FRP-lined mild steel, nickel alloy, and titanium
- Wide range of packing media ranging from natural media like wood chips or lava rocks to structured plastic packing designed to maximize the area of contact between the bio-film surface and the contaminated air
- Complete instrumentation and electrical controls available
- Chemical treatment including pH control and nutrients to foster microbial growth
- Corrosion resistant AMCA rated fan on the inlet or outlet side of the scrubber
- Corrosion resistant pumps for recycling liquid from a sump to the scrubber or for moving liquid to wastewater treatment
- Non-plugging spray nozzles for wetting packing in a wide range of corrosion resistant materials
- Moisture eliminators with chevron, mist pad, or loose fill type designs.
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