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Caustic Scrubber Recirculation Pumps

Caustic Scrubber Recirculation Pumps

Caustic Scrubber Recirculation Pumps

(OP)
Hi there

We are having trouble with a caustic scrubber recirculation pump that keeps getting gummed up with fine precipitate behind the impellor, causing failure & plant shutdown.

The pump is from a reputable supplier, who has not seen the problem before, despite having supplied several units for hypo/caustic scrubbing.

The scrubber operates at a pH above 10 treating around 200 ppm H2S with blowdown occurring at about 10% sump volume.

Discharge is clear to milky colour.

We would really like to hear from anyone operating a caustic scrubber as to what pumps are used & supplier etc

Any assistance is appreciated.

Regards
ctairman
info@cleanteq.com

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