Linked Life Data

17225994

Source:http://linkedlifedata.com/resource/pubmed/id/17225994

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-2-19
pubmed:abstractText
The feasibility of nitrite accumulation in a pilot-scale A/O (anoxic/oxic) nitrogen removal plant treating domestic wastewater was investigated at various dissolved oxygen (DO) concentrations and pH levels. The results showed that the pH was not a useful operational parameter to realize nitrite accumulation. Significant nitrite accumulation was observed at the low DO concentration range of 0.3-0.8 mg/l and the maximum nitrite accumulation ratio of about 90% occurred at a DO concentration of 0.6 mg/l. This suggests a reduction of 22% in the oxygen consumption, and therefore a considerable saving in aeration. However, the nitrite accumulation was destroyed at the high DO concentration and the resumption was very slow. In addition, the average ammonia removal efficiency reached as high as 93% at the low DO level. Moreover, experimental results indicated that nitrogen could be removed by simultaneous nitrification and denitrification (SND) via nitrite in the aerobic zones at the low DO concentration, with the efficiency of 6-12%.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1615-7591
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
91-7
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Short-cut nitrification of domestic wastewater in a pilot-scale A/O nitrogen removal plant.
pubmed:affiliation
Key Laboratory of Beijing Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Chaoyang District, Beijing, People's Republic of China. wxl921@yahoo.com.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Evaluation Studies