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바이오필름 반응기상에서 수소 이용성 독립영양생물을 이용한 고농도 탈질 반응
박호일 ( Ho Il Park ),김지성 ( Ji Seong Kim ),김동건 ( Dong Kun Kim ),박대원 ( Dae Won Pak ) 한국물환경학회 2004 한국물환경학회지 Vol.20 No.3
Autohydrogenotrophic denitrification of high nitrate concentration contaminated wastewater in a batch-scale biofilm reactor has been investigated. High nitrate concentration decreased as pH increased from 7.01 to 9.45. The high nitrate concentrations continuously decrease from 150mg.1^(-1) to 0mg.1^(-1). Nitrite concentrations increase at about two-thirds way through the denitrification process and thereafter it decreases with time. Autohydrogenotrophic denitrification of high nitrate concentration is passible to use drinking water as well as wastewater, and to deal with wastewater treatment by hetrotrophic denitrification.
Toluene 내성 세균 Pseudomonas sp. BCNU 171에 의한 Toluene 및 Xylene의 분해
주우홍,허남숙,박호일 昌原大學校 基礎科學硏究所 1998 基礎科學硏究所論文集 Vol.10 No.-
Toluene 내성세균 Pseudomonas sp. BCNU 171은 고농도의 유기용매를 분해함이 밝혀졌다. 조사된 14개의 방향족 탄화수소 중에서 cumene, ethylbenzene, p-xylene, toluene 그리고 1-heptanol이 자화됨이 확인되었고 toluene, p-xylene, m-xylene 그리고 o-xylene은 회분배양시 12시간 후에 98%이상이 분해되었다. A toluene-tolerant bacterium Pseudomonas sp. BSNU 171 was able to degrade high concentrations of organic solvents. Among 14 aromatic hydrocarbons tested, cumene, ethylbenzene, p-xylene, toluene and 1-heptanol were assimilated. The degradative rates of toluene, p-xylene, m-xylene and o-xylene by Pseudomonas sp. BCNU 171 was over 98% after 12 hours of cultivation.
Toluene 내성 세균 Pseudomonas sp. BCNU 171에 의한 Phenol 분해
주우홍,허남숙,박호일 昌原大學校 基礎科學硏究所 1998 基礎科學硏究所論文集 Vol.10 No.-
The optimal degradative conditions of phenol by Pseudomonas sp. BCNU 171 were investigated. Since this strain possessed abundant plasmid DNA, the heavy metal resistance was examined and the bacterial cells proved to be resistant to Cu, Zn, Ni, Pb. During batch culture with 500ppm, phenol was degraded about 90%. On the other hand, cell growth was inhibited by phenol at concentrations of over 1500ppm.