517 - AEC Systems Two-stage wet washing system

Lichtenvoorde | NL

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Product information

Brand	AEC Systems
Amount	1

Air volume silos and process room: 8,500 m3/h
Ammonia concentration: 50 ppm
Temperature: 2-40 C
It can neutralise H2S and NH3.
A two-stage system can neutralise both substances effectively. In the first stage, water with H2SO4 (sulphuric acid) is added to the washing water to neutralise the ammonia and convert it into almost odourless ammonium sulphate. This stage is necessary because ammonia prevents other substances in the process air from being absorbed.
After the ammonia has been removed, the process air enters the second stage, where caustic soda (NaOH) is added. At a pH above 7, the washing water is able to absorb the H2S. With a sufficient surface area (= residence time) in the scrubber, it is possible to wash out 99.9% of the strong-smelling substance.

Please note! This lot is located in a water treatment plant. Professional dismantling required. Work can only commence once the seller has approved the safety plan.

Additional information

Meet us at the LINEAPELLE exhibition in Milan (23-25 September) for enquiries. Lot collections will take place on the specified pickup days but according to a delivery schedule which will be sent after the auction has closed. A professional service partner for pickup assistance (dismantling, loading, transport) is available; contact details will be shared with all buyers immidiately after the sale closure.