toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
  Record Links
Author (up) Alejo, L.; Atkinson, J.; Lackner, S. doi  openurl
  Title Looking deeper – exploring hidden patterns in reactor data of N-removal systems through clustering analysis Type
  Year 2020 Publication Water Science and Technology Abbreviated Journal Water Sci. Technol.  
  Volume 81 Issue 8 Pages 1569-1577  
  Keywords clustering; feature selection; k-means; partial nitritation-anammox  
  Abstract In this work, clustering analysis of two partial nitritation-anammox (PN-A) moving bed biofilm reactors (MBBR) containing different types of carrier material was explored for the identification of patterns and operational conditions that may benefit process performance. The systems ran for two years under fluctuations of temperature and organic matter. Ex situ batch activity tests were performed every other week during the operation of these reactors. These datasets and the parameters, which were monitored online and in the laboratory, were combined and analyzed applying clustering analysis to identify non-obvious information regarding the performance of the systems. The initial results were consistent with the literature and from an operational perspective, which allowed the parameters to be explored further. The new information revealed that the oxidation reduction potential (ORP) and the anaerobic ammonium oxidizing bacteria (AnAOB) activity correlated well. ORP also dropped when the reactors were exposed to real wastewater (presence of organic matter). Moreover, operating conditions during nitrite accumulation were identified through clustering, and also revealed inhibition of anammox bacteria already at low nitrite concentrations.  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0273-1223 ISBN Medium  
  Area Expedition Conference  
  Notes Approved  
  Call Number UAI @ eduardo.moreno @ Serial 1123  
Permanent link to this record
Select All    Deselect All
 |   | 

Save Citations:
Export Records: