Using cassava distiller's dried grains as carbon and microbe sources to enhance denitrification of nitrate-contaminated groundwater

Verfasser / Beitragende:
[Rui Wan, Xiong Zheng, Yinguang Chen, Huaichen Wang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/6(2015-03-01), 2839-2847
Format:
Artikel (online)
ID: 605499330
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024 7 0 |a 10.1007/s00253-014-6155-z  |2 doi 
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245 0 0 |a Using cassava distiller's dried grains as carbon and microbe sources to enhance denitrification of nitrate-contaminated groundwater  |h [Elektronische Daten]  |c [Rui Wan, Xiong Zheng, Yinguang Chen, Huaichen Wang] 
520 3 |a Nitrate removal from synthetic and real groundwater was investigated by using cassava distiller's dried grains (CDDG), which served as sole carbon source as well as the only microbe seed. It was found that remarkably higher total nitrogen removal efficiency (96.8±0.6%) could be reached; the accumulation of nitrite and the releases of organic compounds, meanwhile, were insignificant in the denitrification process. Scanning electron microscope (SEM) analysis showed that CDDG were degraded during the denitrification process. Further investigation showed that CDDG were anaerobically hydrolyzed and acidified to butyric acid, acetic acid, and carbohydrate, which could be utilized directly as the reducing equivalent providers for denitrification by the microorganisms separated from CDDG. Microbial community analysis revealed that the fungi and bacteria present in the original CDDG functioned as the denitrifiers, which mainly consisted of Aspergillus (69.8%) and Rhizomucor (15.9%) in the fungi community and Burkholderia (20.6%) and Rhizobium (15.9%) in the bacteria community, respectively. Finally, the use of CDDG as both carbon and microbial sources for real groundwater denitrification was testified to be feasible and safe with a total nitrogen removal efficiency of around 100%. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Denitrification  |2 nationallicence 
690 7 |a Carbon source  |2 nationallicence 
690 7 |a Microbe  |2 nationallicence 
690 7 |a Cassava distiller's dried grains  |2 nationallicence 
690 7 |a Groundwater  |2 nationallicence 
700 1 |a Wan  |D Rui  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
700 1 |a Zheng  |D Xiong  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
700 1 |a Chen  |D Yinguang  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
700 1 |a Wang  |D Huaichen  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/6(2015-03-01), 2839-2847  |x 0175-7598  |q 99:6<2839  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-014-6155-z  |q text/html  |z Onlinezugriff via DOI 
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900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
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950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-014-6155-z  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wan  |D Rui  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zheng  |D Xiong  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D Yinguang  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Huaichen  |u State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/6(2015-03-01), 2839-2847  |x 0175-7598  |q 99:6<2839  |1 2015  |2 99  |o 253