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Comparison of mineral acid pretreatments for sulfide removal

Journal Article · · Journal of the American Water Works Association
OSTI ID:349003
;  [1];  [2]
  1. Boyle Engineering Corp., Orlando, FL (United States)
  2. Orange County Utilities, Orlando, FL (United States)

To determine water quality effects on groundwater treatment for hydrogen sulfide, the authors compared sulfuric acid (H{sub 2}SO{sub 4}) and carbonic acid for ph adjustment pretreatment in a pilot-scale randomly oriented packed tower. Pretreatment with either H{sub 2}SO{sub 4} or carbon dioxide (CO{sub 2}) to pH 6.0 resulted in > 95% sulfide removal for tower feedwater sulfide concentrations of 2.5 mg/L. However, utilization of H{sub 2}SO{sub 4} for pH adjustment resulted in a loss of alkalinity in the finished water and an increase in sulfur (as sulfate), whereas CO{sub 2} pretreatment preserved alkalinity in the finished water and did not increase sulfur (as sulfate).

OSTI ID:
349003
Journal Information:
Journal of the American Water Works Association, Journal Name: Journal of the American Water Works Association Journal Issue: 5 Vol. 91; ISSN 0003-150X; ISSN JAWWA5
Country of Publication:
United States
Language:
English

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