Capacity for polyphosphate accumulation of predominant bacteria in activated sludge showing enhanced phosphate removal |
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| Institution: | 1. Laboratory on Optics and Spectroscopy, Duy Tan University, K7/25, Quang Trung, Da Nang, Viet Nam;2. Nagoya Institute of Technology, Showa Nagoya, Japan;1. State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. School of Energy Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | The taxonomic identity of predominant bacteria in laboratory-scale anaerobic-aerobic activated sludge systems and their capacity for accumulating polyphosphate (polyP) were investigated. All bacterial isolates accumulated appreciable amounts of polyP under tested conditions, although only 7% of them were positive for the volutin stain. The isolates showing the most pronounced polyP accumulation and volutin formation were the unidentified Gram-positive bacteria containing menaquinone—10. Some other strains of Gram-positive bacteria and menaquinone-containing Gram-negative bacteria also formed volutin granules. |
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