Effects of fulvic acid and ferric hydroxide on removal of Fe2+ and Mn2+ by oxidation and aerated/submerged ultrafiltration membrane system | Zendy

Türkan Ormancı Acar | Zendy; Sevgi Güneş Durak | Zendy; Neşe Tüfekçi | Zendy

Open Access

Effects of fulvic acid and ferric hydroxide on removal of Fe2+ and Mn2+ by oxidation and aerated/submerged ultrafiltration membrane system

Author(s) -

Türkan Ormancı Acar,

Sevgi Güneş Durak,

Neşe Tüfekçi

Publication year - 2017

Publication title -

water science and technology water supply

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 39

eISSN - 1607-0798

pISSN - 1606-9749

DOI - 10.2166/ws.2017.033

Subject(s) - ultrafiltration (renal) , chemistry , hydroxide , aeration , ferric , membrane , filtration (mathematics) , humic acid , fouling , membrane fouling , water treatment , inorganic chemistry , environmental chemistry , environmental engineering , chromatography , environmental science , organic chemistry , fertilizer , biochemistry , statistics , mathematics

The purpose of this study is to evaluate the effects of fulvic acid (FA) and ferric hydroxide on the Fe 2+ and Mn 2+ removal by oxidation and aerated/submerged membrane systems. Firstly, the oxidation kinetics of Fe 2+ and Mn 2+ in the presence of FA and ferric hydroxide are discussed and then the contribution of the oxidation step in membrane experiments is determined. All experiments are conducted with synthetic drinking water and the concentration of contaminants is determined by characterization of two different drinking water sources in the city of Istanbul: Omerli Dam Lake and Danamandira Village groundwater. The addition of ferric hydroxide helps to mitigate fouling and enhances the rejection of Mn 2+ by up to 90% by developing a secondary filtration layer on the membrane surface which has been considered a challenge in drinking water treatment plants.

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