Bacterial Community and Biological Nitrate Removal: Comparisons of Autotrophic and Heterotrophic Reactors for Denitrification with Raw Sewage
DC Field | Value | Language |
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dc.contributor.author | Lee, Han Woong | - |
dc.contributor.author | Park, Yong Keun | - |
dc.contributor.author | Choi, Euiso | - |
dc.contributor.author | Lee, Jin Woo | - |
dc.date.accessioned | 2021-09-09T03:08:47Z | - |
dc.date.available | 2021-09-09T03:08:47Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2008-11 | - |
dc.identifier.issn | 1017-7825 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/122500 | - |
dc.description.abstract | An autotrophic denitrification reactor (ADR-1) and a heterotrophic denitrification reactor (HDR-2) were operated to remove nitrate and nitrite in an anoxic environment in raw sewage. The NO3-N removal rate of ADR-1 was shown to range from 52.8% to 78.7%, which was higher than the NO3-N removal rate of HDR-2. Specific denitrification rates (SDNR) of ADR-1 and HDR-2 were 3.0 to 4.0 and 1.1 to 1.2 mgNO(3)-N/gVSS/h, respectively. From results of restriction fragment length polymorphism (RFLP) of the 16S rRNA gene, Aquaspirillum metamorphum, Alcaligenes defragrans, and Azoarcus sp. were beta-Proteobacteria that are affiliated with denitrifying bacteria in the ADR-1. Specifically, Thiobacillus denitrificans was detected as an autotrophic denitrification bacteria. In HDR-2, the beta-Proteobacteria such as Denitrifying-Fe-oxidizing bacteria, Alcaligenes defragrans, Acidovorax sp., Azoarcus denitrificans, and Aquaspirillum metamorphum were the main bacteria related to denitrifying bacteria. The beta-and alpha-Proteobacteria were the important bacterial groups in ADR-1, whereas the beta-Proteobacteria were the main bacterial group in HDR-2 based on results of fluorescent in situ hybridization (FISH). The number of Thiobacillus denitrificans increased in ADR-1 during the operation period but not in HRD-2. Overall, the data presented here demonstrate that many heterotrophic denitrifying bacteria coexisted with autotrophic denitrifying bacteria such as Thiobacillus denitrificans for nitrate removal in ADR-1. On the other hand, only heterotrophic denitrifying bacteria were identified as dominant bacterial groups in HDR-2. Our research may provide a foundation for the complete nitrate removal in raw sewage of low-COD concentration under anoxic condition without any external organic carbon or the requirement of post-treatment. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY | - |
dc.subject | SITU HYBRIDIZATION-MICROAUTORADIOGRAPHY | - |
dc.subject | DENITRIFYING MICROBIAL COMMUNITY | - |
dc.subject | RIBOSOMAL-RNA ANALYSIS | - |
dc.subject | ACTIVATED-SLUDGE | - |
dc.subject | THIOBACILLUS-DENITRIFICANS | - |
dc.subject | PSEUDOMONAS-AERUGINOSA | - |
dc.subject | OLIGONUCLEOTIDE PROBES | - |
dc.subject | NITROGEN REMOVAL | - |
dc.subject | SP-NOV | - |
dc.subject | SULFIDE | - |
dc.title | Bacterial Community and Biological Nitrate Removal: Comparisons of Autotrophic and Heterotrophic Reactors for Denitrification with Raw Sewage | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Yong Keun | - |
dc.identifier.doi | 10.4014/jmb.0800.276 | - |
dc.identifier.scopusid | 2-s2.0-64549136286 | - |
dc.identifier.wosid | 000261237000014 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, v.18, no.11, pp.1826 - 1835 | - |
dc.relation.isPartOf | JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY | - |
dc.citation.title | JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY | - |
dc.citation.volume | 18 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 1826 | - |
dc.citation.endPage | 1835 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001293153 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Biotechnology & Applied Microbiology | - |
dc.relation.journalResearchArea | Microbiology | - |
dc.relation.journalWebOfScienceCategory | Biotechnology & Applied Microbiology | - |
dc.relation.journalWebOfScienceCategory | Microbiology | - |
dc.subject.keywordPlus | SITU HYBRIDIZATION-MICROAUTORADIOGRAPHY | - |
dc.subject.keywordPlus | DENITRIFYING MICROBIAL COMMUNITY | - |
dc.subject.keywordPlus | RIBOSOMAL-RNA ANALYSIS | - |
dc.subject.keywordPlus | ACTIVATED-SLUDGE | - |
dc.subject.keywordPlus | THIOBACILLUS-DENITRIFICANS | - |
dc.subject.keywordPlus | PSEUDOMONAS-AERUGINOSA | - |
dc.subject.keywordPlus | OLIGONUCLEOTIDE PROBES | - |
dc.subject.keywordPlus | NITROGEN REMOVAL | - |
dc.subject.keywordPlus | SP-NOV | - |
dc.subject.keywordPlus | SULFIDE | - |
dc.subject.keywordAuthor | Bacterial communities | - |
dc.subject.keywordAuthor | autotrophic denitrification | - |
dc.subject.keywordAuthor | heterotrophic denitrification | - |
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