Abstract
There is a growing interest in the use of Mn(II)-oxidizing bacteria to treat Mn-containing metal refinery wastewaters instead of using conventional chemical approaches since the former could reduce the cost of alkaline agents and oxidants to remove Mn(II) as Mn oxides at alkaline pH. The Mn level was found naturally dropped in the industrial metal refinery wastewater treatment system, where the formation of Mn-enriched sludge was apparent. This observation motivated us to investigate the possible involvement of microbially mediated reactions. From the sludge sample, Pseudomonas sp. strain SK3 was successfully isolated and tested for its Mn(II)-oxidation characteristics. Strain SK3 completely removed 100 ppm Mn(II) within 42 hours as birnessite ((Na,Ca,K)0.6(MnIV, MnIII)2O4·1.5H2O) under optimized conditions. Copper ions were found to be an important factor in promoting Mn(II) oxidation. Changes in the Mn(IV)/Mn(III) ratio during bacterial Mn(II)-oxidation indicated the involvement of 2-step one-electron transfer reactions in the formation of biogenic birnessite with Mn(III) as intermediate. Characteristics of strain SK3 were compared with those of a well-known Mn(II)-oxidizing bacterium, Pseudomonas putida strain MnB1. Strain SK3 displayed more robust Mn(II) oxidation capabilities under various severe conditions, showing its ideal characteristics for use in the industrial water treatment process.
| Original language | English |
|---|---|
| Title of host publication | 22nd International Biohydrometallurgy Symposium |
| Editors | Wolfgang Sand, Kathrin Rubberdt, Franz Glombitza, Wolfgang Sand, Mario Vera Veliz, Sabine Willscher, Sabrina Hedrich, Axel Schippers |
| Publisher | Trans Tech Publications Ltd |
| Pages | 673-676 |
| Number of pages | 4 |
| ISBN (Print) | 9783035711806 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
| Event | 22nd International Biohydrometallurgy Symposium, 2017 - Freiberg, Germany Duration: Sep 24 2017 → Sep 27 2017 |
Publication series
| Name | Solid State Phenomena |
|---|---|
| Volume | 262 SSP |
| ISSN (Electronic) | 1662-9779 |
Other
| Other | 22nd International Biohydrometallurgy Symposium, 2017 |
|---|---|
| Country | Germany |
| City | Freiberg |
| Period | 9/24/17 → 9/27/17 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Condensed Matter Physics
Cite this
Manganese removal from metal refinery wastewater using Mn(II)-oxidizing bacteria. / Kitjanukit, Santisak; Takamatsu, Kyohei; Takeda, Kenji; Asano, Satoshi; Okibe, Naoko.
22nd International Biohydrometallurgy Symposium. ed. / Wolfgang Sand; Kathrin Rubberdt; Franz Glombitza; Wolfgang Sand; Mario Vera Veliz; Sabine Willscher; Sabrina Hedrich; Axel Schippers. Trans Tech Publications Ltd, 2017. p. 673-676 (Solid State Phenomena; Vol. 262 SSP).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Manganese removal from metal refinery wastewater using Mn(II)-oxidizing bacteria
AU - Kitjanukit, Santisak
AU - Takamatsu, Kyohei
AU - Takeda, Kenji
AU - Asano, Satoshi
AU - Okibe, Naoko
PY - 2017/1/1
Y1 - 2017/1/1
N2 - There is a growing interest in the use of Mn(II)-oxidizing bacteria to treat Mn-containing metal refinery wastewaters instead of using conventional chemical approaches since the former could reduce the cost of alkaline agents and oxidants to remove Mn(II) as Mn oxides at alkaline pH. The Mn level was found naturally dropped in the industrial metal refinery wastewater treatment system, where the formation of Mn-enriched sludge was apparent. This observation motivated us to investigate the possible involvement of microbially mediated reactions. From the sludge sample, Pseudomonas sp. strain SK3 was successfully isolated and tested for its Mn(II)-oxidation characteristics. Strain SK3 completely removed 100 ppm Mn(II) within 42 hours as birnessite ((Na,Ca,K)0.6(MnIV, MnIII)2O4·1.5H2O) under optimized conditions. Copper ions were found to be an important factor in promoting Mn(II) oxidation. Changes in the Mn(IV)/Mn(III) ratio during bacterial Mn(II)-oxidation indicated the involvement of 2-step one-electron transfer reactions in the formation of biogenic birnessite with Mn(III) as intermediate. Characteristics of strain SK3 were compared with those of a well-known Mn(II)-oxidizing bacterium, Pseudomonas putida strain MnB1. Strain SK3 displayed more robust Mn(II) oxidation capabilities under various severe conditions, showing its ideal characteristics for use in the industrial water treatment process.
AB - There is a growing interest in the use of Mn(II)-oxidizing bacteria to treat Mn-containing metal refinery wastewaters instead of using conventional chemical approaches since the former could reduce the cost of alkaline agents and oxidants to remove Mn(II) as Mn oxides at alkaline pH. The Mn level was found naturally dropped in the industrial metal refinery wastewater treatment system, where the formation of Mn-enriched sludge was apparent. This observation motivated us to investigate the possible involvement of microbially mediated reactions. From the sludge sample, Pseudomonas sp. strain SK3 was successfully isolated and tested for its Mn(II)-oxidation characteristics. Strain SK3 completely removed 100 ppm Mn(II) within 42 hours as birnessite ((Na,Ca,K)0.6(MnIV, MnIII)2O4·1.5H2O) under optimized conditions. Copper ions were found to be an important factor in promoting Mn(II) oxidation. Changes in the Mn(IV)/Mn(III) ratio during bacterial Mn(II)-oxidation indicated the involvement of 2-step one-electron transfer reactions in the formation of biogenic birnessite with Mn(III) as intermediate. Characteristics of strain SK3 were compared with those of a well-known Mn(II)-oxidizing bacterium, Pseudomonas putida strain MnB1. Strain SK3 displayed more robust Mn(II) oxidation capabilities under various severe conditions, showing its ideal characteristics for use in the industrial water treatment process.
UR - http://www.scopus.com/inward/record.url?scp=85028991928&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028991928&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/SSP.262.673
DO - 10.4028/www.scientific.net/SSP.262.673
M3 - Conference contribution
SN - 9783035711806
T3 - Solid State Phenomena
SP - 673
EP - 676
BT - 22nd International Biohydrometallurgy Symposium
A2 - Sand, Wolfgang
A2 - Rubberdt, Kathrin
A2 - Glombitza, Franz
A2 - Sand, Wolfgang
A2 - Veliz, Mario Vera
A2 - Willscher, Sabine
A2 - Hedrich, Sabrina
A2 - Schippers, Axel
PB - Trans Tech Publications Ltd
ER -