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Manganese Control During Ozonation of Water Containing Organic Compounds
Author(s) -
Wilczak Andrzej,
Knocke William R.,
Hubel Richard E.,
Aieta E. Marco
Publication year - 1993
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1993.tb06084.x
Subject(s) - manganese , potassium permanganate , alkalinity , chemistry , filtration (mathematics) , permanganate , ozone , coagulation , water treatment , environmental chemistry , environmental science , inorganic chemistry , environmental engineering , organic chemistry , psychology , statistics , mathematics , psychiatry
Bench‐scale tests were conducted to investigate the removal of dissolved manganese from Delaware River water. Prior pilot‐plant results had indicated that manganese was not effectively removed by ozonation, sludge blanket clarification, and filtration, because of the breakthrough or resolubilization of colloidal manganese dioxide [MnO 2 (s)] species. Increasing the alkalinity was not an effective means of controlling manganese. But application of potassium permanganate after ozonation and at the beginning of coagulation considerably improved the removal of soluble manganese.