PMID- 25343978
OWN - NLM
STAT- MEDLINE
DCOM- 20160201
LR  - 20150228
IS  - 1432-0614 (Electronic)
IS  - 0175-7598 (Linking)
VI  - 99
IP  - 6
DP  - 2015 Mar
TI  - Using cassava distiller's dried grains as carbon and microbe sources to enhance 
      denitrification of nitrate-contaminated groundwater.
PG  - 2839-47
LID - 10.1007/s00253-014-6155-z [doi]
AB  - 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 %.
FAU - Wan, Rui
AU  - Wan R
AD  - State Key Laboratory of Pollution Control and Resources Reuse, School of 
      Environmental Science and Engineering, Tongji University, 1239 Siping Road, 
      Shanghai, 200092, China.
FAU - Zheng, Xiong
AU  - Zheng X
FAU - Chen, Yinguang
AU  - Chen Y
FAU - Wang, Huaichen
AU  - Wang H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20141026
PL  - Germany
TA  - Appl Microbiol Biotechnol
JT  - Applied microbiology and biotechnology
JID - 8406612
RN  - 0 (Nitrates)
RN  - 0 (Nitrites)
RN  - 0 (Water Pollutants, Chemical)
RN  - 7440-44-0 (Carbon)
SB  - IM
MH  - Aspergillus/metabolism
MH  - Bioreactors/microbiology
MH  - Burkholderia/metabolism
MH  - Carbon/*chemistry
MH  - *Denitrification
MH  - Groundwater/*chemistry
MH  - Manihot/*chemistry/*microbiology
MH  - Nitrates/*isolation & purification
MH  - Nitrites/chemistry
MH  - Rhizobium/metabolism
MH  - Rhizomucor/metabolism
MH  - Water Pollutants, Chemical/*isolation & purification
MH  - Water Purification/methods
EDAT- 2014/10/26 06:00
MHDA- 2016/02/02 06:00
CRDT- 2014/10/26 06:00
PHST- 2014/07/22 00:00 [received]
PHST- 2014/10/12 00:00 [accepted]
PHST- 2014/10/07 00:00 [revised]
PHST- 2014/10/26 06:00 [entrez]
PHST- 2014/10/26 06:00 [pubmed]
PHST- 2016/02/02 06:00 [medline]
AID - 10.1007/s00253-014-6155-z [doi]
PST - ppublish
SO  - Appl Microbiol Biotechnol. 2015 Mar;99(6):2839-47. doi: 
      10.1007/s00253-014-6155-z. Epub 2014 Oct 26.