Ventilation

Ventilation and working atmosphere

The ammonia content in barns and stables is often high, requiring a ventilation system including a wet scrubber producing dilute ammonia water. The wet scrubber system can be significantly improved by applying acidic nitrate and nitrite to the scrubber solution. The scrubbing solution will become more concentrated and can be used as a liquid nitrogen fertilizer.


Ventilation air scrubber

The atmosphere in barns and stables are in focus from both a human and an animal health aspect. Ammonia and hydrogen sulfide is easily reaching the occupational health limits.  The root of the problem is the handling of the manure and organic waste.  The biological decomposition is releasing ammonia (NH3) and hydrogen sulfide (H2S).

The best way to combat both ammonia and the hydrogen sulfide is to acidify with nitrates.  The acidification is directly binding the ammonia and is providing oxygen which is suppressing the anaerobic conversion of sulfates to H2S.

In order to keep ammonia and hydrogen sulfide the atmosphere at an acceptable level, comprehensive ventilation is required.  Exhaust scrubbers with water is able to turn the potential emissions to air into effluents in a dilute water stream.

Acidification of the scrubber water will enable a higher concentration of ammonia to be absorbed, because the reaction with the acidic components suppressing the ammonia vapors pressure.  The result is a basically an ammonium nitrate solution which can be used as liquid fertilizer for irrigation systems.

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