Document Detail


Removal of organics and nutrients from food wastewater using combined thermophilic two-phase anaerobic digestion and shortcut biological nitrogen removal.
MedLine Citation:
PMID:  21849203     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A process combining pilot-scale two-phase anaerobic digestion and shortcut biological nitrogen removal (SBNR) was developed to treat organics and nutrients (nitrogen and phosphorus) from food wastewater. The thermophilic two-phase anaerobic digestion process was investigated without adjusting the pH of the wastewater for the pre-acidification process. The digested food wastewater was treated using the SBNR process without supplemental carbon sources or alkalinity. Under these circumstances, the combined system was able to remove about 99% of COD, 88% of TN, and 97% of TP. However, considerable amounts of nutrients were removed due to chemical precipitation processes between the anaerobic digestion and SBNR. The average TN removal efficiency of the SBNR process was about 74% at very low C/N (TCOD/TN) ratio of 2. The SBNR process removed about 39% of TP from the digested food wastewater. Conclusively, application of the combined system improved organic removal efficiency while producing valuable energy (biogas), removed nitrogen at a low C/N ratio, and conserved additional resources (carbon and alkalinity).
Authors:
Fenghao Cui; Seungho Lee; Moonil Kim
Related Documents :
14690323 - Indoor radon survey in dwellings of nine cities in the eastern and the western province...
20506023 - Risk assessment of inhalation exposure to polycyclic aromatic hydrocarbons in taiwanese...
8128003 - Toxicological profile, current use, and regulatory issues on edta compounds for assessi...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-30
Journal Detail:
Title:  Water research     Volume:  -     ISSN:  1879-2448     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-8-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0105072     Medline TA:  Water Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Civil & Environmental Engineering, Hanyang University, Sa 3-Dong, Ansan, Gyeonggi-Do, Republic of Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Complementation studies with the novel "Bungowannah" virus provide new insights in the compatibility...
Next Document:  Estimating municipal solid waste generation by different activities and various resident groups: A c...