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Worrall; George I.
West St. Paul, MN
No. of patents:

Patent Number Title Of Patent Date Issued
3984316 Treating foul refinery waste waters with absorber gas October 5, 1976
Refinery waste waters containing dissolved hydrogen sulfide and ammonia are stripped of hydrogen sulfide by a countercurrent stream of refinery absorber gas which removes substantially all of the hydrogen sulfide and none of the ammonia. The dissolved ammonia is subsequently removed by

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