Catalytic air oxidation of manganese in synthetic waters

• Authors: Nihan Kaya , Erdal Karadurmus , Ahmet Alicilar
• Languages of publication: EN

Abstracts

EN

An attempt was made to study the oxidation of manganese by air in synthetic waters. A series of batch experments were performed at differnet values of concentration, temperature and pH. Unoxidized manganese in the solution was determined by formaldoxime spectrometric method. Results of these studies indicated that the air oxidation of manganese soluble in water can be effectively performed in basic media and that oxidation yield increasedwith an increase in pH and concentration. The yield was very high in the presence of manganese dioxide, sepiolite or clinoptilolite in solution and, the oxidation was almost completed especially at high values of pH and concentration. The reaction was found to be first order with respect to Mn2+ with a very low activation energy. A yield of 62% was obtained for the air oxidation of wastewater taken from the treatment plant of Corum Municipality.

Keywords

EN

Water pollution; manganese; aeration; oxidation; catalyst

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2005
• Volume: 3
• Issue: 3
• Pages: 511-519

Dates

published

1 - 9 - 2005

online

1 - 9 - 2005

Contributors

author

Nihan Kaya

• Chemical Engineering Department, Corum Engineering Faculty, Gazi University, Corum, Turkey

author

Erdal Karadurmus

• Chemical Engineering Department, Corum Engineering Faculty, Gazi University, Corum, Turkey

author

Ahmet Alicilar

• Chemical Engineering Department, Corum Engineering Faculty, Gazi University, Corum, Turkey

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Identifiers

DOI

10.2478/BF02479279