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Author Fra-Vazquez, A.; Morales, N.; Figueroa, M.; del Rio, A.V.; Regueiro, L.; Campos, J.L.; Mosquera-Corral, A. pdf  doi
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  Title Bacterial community dynamics in long-term operation of a pilot plant using aerobic granular sludge to treat pig slurry Type
  Year 2016 Publication Biotechnology Progress Abbreviated Journal Biotechnol. Prog.  
  Volume 32 Issue 5 Pages 1212-1221  
  Keywords aerobic process; granular sludge; bacterial diversity; applied microbiology; wastewater treatment  
  Abstract Aerobic granular sludge represents an interesting approach for simultaneous organic matter and nitrogen removal in wastewater treatment plants. However, the information about microbial communities in aerobic granular systems dealing with industrial wastewater like pig slurry is limited. Herein, bacterial diversity and dynamics were assessed in a pilot scale plant using aerobic granular sludge for organic matter and nitrogen elimination from swine slurry during more than 300 days. Results indicated that bacterial composition evolved throughout the operational period from flocculent activated sludge, used as inoculum, to mature aerobic granules. Bacterial diversity increased at the beginning of the granulation process and then declined due to the application of transient organic matter and nitrogen loads. The operational conditions of the pilot plant and the degree of granulation determined the microbial community of the aerobic granules. Brachymonas, Zoogloea and Thauera were attributed with structural function as they are able to produce extracellular polymeric substances to maintain the granular structure. Nitrogen removal was justified by partial nitrification (Nitrosomonas) and denitrification (Thauera and Zoogloea), while Comamonas was identified as the main organic matter oxidizing bacteria. Overall, clear links between bacterial dynamics and composition with process performance were found and will help to predict their biological functions in wastewater ecosystems improving the future control of the process. (c) 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1212-1221, 2016  
  Address [Fra-Vazquez, A.; Morales, N.; Figueroa, M.; Val del Rio, A.; Regueiro, L.; Mosquera-Corral, A.] Univ Santiago de Compostela, Inst Technol, Grp Environm Engn & Bioproc, Dept Chem Engn, Santiago De Compostela 15705, Spain, Email: andrea.fra@usc.es  
  Corporate Author Thesis  
  Publisher Wiley-Blackwell Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 8756-7938 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000387787600013 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 681  
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