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Exhaust air treatment in wastewater treatment plants

The situation

Besides water, sewage treatment plants also have to deal with exhaust air. It is well known that wastewater treatment plants cause odor problems. But pollutant emissions must also be avoided according to TA Luft.

The problem

Odor-intensive emissions are generated in the open clarifiers and in the sewage sludge treatment plants, which can lead to odor nuisance for residents.

Fluctuating to very high concentrations of hydrogen sulfide (H2S) and other organic compounds place special demands on exhaust air technology.

The solution

UV-C/ozone exhaust air purification is an effective odor treatment process used in all areas of wastewater treatment plants. Here, the systems prove to be a cost-effective, environmentally friendly alternative with high efficiency.

Photolysis oxidation is characterized by its insensitivity and can treat high and highly fluctuating loads well (e.g. several 100ppm H2S). Odors and germs in the exhaust air are eliminated by up to 99%. H2S and dimethyl sulfide in the exhaust air are odor neutralized.

The product


Clean Exhaust Air
UV ozone exhaust air purification system to meet TA Luft requirements

The advantages

  • Treatment of high loads of H2S and dimethyl sulfide.
  • Load peaks can be treated well
  • Extremely low maintenance requirements
  • Independent of temperature and load variations
  • Very stable and simple process
  • ON/OFF system – discontinuous operation possible
  • Very low energy consumption
  • Low space requirement – light equipment – easy to retrofit

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