DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, I. | ko |
dc.contributor.author | Oh, S. | ko |
dc.contributor.author | Bum, M. | ko |
dc.contributor.author | Lee, J. | ko |
dc.contributor.author | Lee, Sung Taik | ko |
dc.date.accessioned | 2013-03-06T04:09:04Z | - |
dc.date.available | 2013-03-06T04:09:04Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, v.59, no.1, pp.91 - 96 | - |
dc.identifier.issn | 0175-7598 | - |
dc.identifier.uri | http://hdl.handle.net/10203/85761 | - |
dc.description.abstract | Biological denitrification of high nitrate-containing wastewater was examined in a sulfur-packed column using a smaller amount of methanol than required stoichiometrically for heterotrophic denitrification. In the absence of methanol, the observed nitrate removal efficiency was only about 40%, and remained at 400 mg NO3--N/l, which was due to an alkalinity deficiency of the pH buffer and of CO2 as a carbon source. Complete denitrification was achieved by adding approximately 1.4 g methanol/g nitrate-nitrogen (NO3--N) to a sulfur-packed reactor. As the methanol concentration increased, the overall nitrate removal efficiency increased. As influent methanol concentrations increased from 285 to 570, 855, and 1, 140 mg/l, the value of Delta mg alkalinity as CaCO3 consumed/Delta mg NO3--N removed increased from -1.94 to -0.84, 0.24, and 0.96, and Delta mg SO42- produced/Delta mg NO3--N removed decreased from 4.42 to 3.57, 2.58, and 1.26, respectively. These results imply the co-occurrence of simultaneous autotrophic and heterotrophic denitrification. Sulfur-utilizing autotrophic denitrification in the presence of a small amount of methanol is very effective at decreasing both sulfate production and alkalinity consumption. Most of methanol added was removed completely in the effluent. A small amount of nitrite accumulated in the mixotrophic column, which was less than 20 mg NO2--N/l, while under heterotrophic denitrification conditions, nitrite accumulated steadily and increased to 60 mg NO2--N/l with increasing column height. | - |
dc.language | English | - |
dc.publisher | SPRINGER-VERLAG | - |
dc.subject | AUTOTROPHIC DENITRIFICATION | - |
dc.subject | WATER | - |
dc.subject | REMOVAL | - |
dc.title | Monitoring the denitrification of wastewater containing high concentrations of nitrate with methanol in a sulfur-packed reactor | - |
dc.type | Article | - |
dc.identifier.wosid | 000176809100014 | - |
dc.identifier.scopusid | 2-s2.0-0036328283 | - |
dc.type.rims | ART | - |
dc.citation.volume | 59 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 91 | - |
dc.citation.endingpage | 96 | - |
dc.citation.publicationname | APPLIED MICROBIOLOGY AND BIOTECHNOLOGY | - |
dc.identifier.doi | 10.1007/s00253-002-0952-5 | - |
dc.contributor.localauthor | Lee, Sung Taik | - |
dc.contributor.nonIdAuthor | Kim, I. | - |
dc.contributor.nonIdAuthor | Oh, S. | - |
dc.contributor.nonIdAuthor | Bum, M. | - |
dc.contributor.nonIdAuthor | Lee, J. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | AUTOTROPHIC DENITRIFICATION | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | REMOVAL | - |
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