Tri-Mer Air Pollution Control Systems

- Acid Fume Scrubber

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UltraScrub is Tri-Mer’s trade name for its cartridge-based acid fume scrubber.

UltraScrub units have four stages, arranged as a series of cartridges.

  • The first stage is a proprietary rigid tube packing, which sacrificially prefilters the air prior to the scrubber section. There is no visual carryover from stage one forward.
  • Mists next contact a stage containing 1' Tri-Packs “random-dump” packing media. This media prevents the formation of dry spots and compression interlock, two problems common to packing media that cause liquid and air to channel, thereby reducing system efficiency. Tri-Packs develops a very low static pressure per foot of depth, so tower size and scrubbing liquid can be minimized.
  • The third stage is an interwoven polypropylene Kimre pad.
  • Stage four is a rigid chevron blade mist eliminator which removes droplets from the system. The dual mist eliminator developed by Tri-Mer has a minimum performance requirement of 99% on 2 micron droplets. The captured sulfuric acid mists are expelled with other process wastewaters.

The UltraScrub acid fume scrubber systems operate “dry” at least 99% of the time. Each stage has an independent magnehelic gauge to indicate when cleaning is necessary. To prevent the corrosion of the fan from exposure to sulfuric acid mists, the fan is installed at the back end of the scrubber; any fume drawn through is cleaned and exhausted before contact.

Tri-Mer Industrial scrubbers are fabricated from homogenous, virgin-grade, UV-resistant polypropylene homopolymer, PVC, mild steel or stainless steel. The maximum temperature rating for polypropylene units is 180°F; 140°F for PVC.

The Acid Fume Scrubber shell is manufactured from Polypropylene, Polyvinylchloride, (PVC) stainless steel or mild steel. Tre-Mer will evaluate contaminants and select the most appropriate material.

The fan, if optioned, is manufactured from FRP, PVC/PP with coated steel impeller, stainless steel, or an equally suitable material.

The Acid Fume Scrubber is equipped with a high efficiency (95% @ 15 micron and larger) mist eliminator of the chevron blade type or a coalescing type mesh pad (99% @ 10 micron and larger mist). Material for the mist eliminator is PVC or polypropylene; alternate materials are available.

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