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231223s2005 xx ||||| 00| ||eng c |
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|a (NLM)16003962
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|a DE-627
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|e rakwb
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|a eng
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|a Park, D
|e verfasserin
|4 aut
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|a Continuous biological ferrous iron oxidation in a submerged membrane bioreactor
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 30.08.2005
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Microbial oxidation of ferrous iron may be available alternative method of producing ferric iron, which is a reagent used for removal of H2S from biogas. In this study, a submerged membrane bioreactor (MBR) system was employed to oxidize ferrous iron to ferric iron. In the submerged MBR system, we could keep high concentration of iron-oxidizing bacteria and high oxidation rate of ferrous iron. There was membrane fouling caused by chemical precipitates such as K-jarosite and ferric phosphate. However, a strong acidity (pH 1.75) of solution and low ferrous iron concentration (below 3000 mg/I) significantly reduced the fouling of membrane module during the bioreactor operation. A fouled membrane module could be easily regenerated with a 1 M of sulfuric acid solution. In conclusion, the submerged MBR could be used for high-density culture of iron-oxidizing bacteria and for continuous ferrous iron oxidation. As far as our knowledge concerns, this is the first study on the application of a submerged MBR to high acidic conditions (below pH 2)
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Ferric Compounds
|2 NLM
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|a Ferrous Compounds
|2 NLM
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|a ferric phosphate
|2 NLM
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|a N6BAA189V1
|2 NLM
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|a Hydrogen Sulfide
|2 NLM
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|2 NLM
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|a Lee, D S
|e verfasserin
|4 aut
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|a Park, J M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 51(2005), 6-7 vom: 29., Seite 59-68
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:51
|g year:2005
|g number:6-7
|g day:29
|g pages:59-68
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