http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kim, Jin-Hoon,Ha, Chul-Yoon,Oa, Seong-Wook,Lee, Jin-Woo,Park, Sun-Hwa,Kwon, Soo-Youl,Kim, Sungpyo,Kim, Young Marcel Dekker 2011 Journal of Environmental Science and Health. Part Vol.46 No.1
<P>In situ biological denitrification has been proposed as an important metabolic activity in the remediation of nitrate-contaminated groundwater. In this study, the effects of fumarate, an electron donor for biological denitrification, on the in situ denitrifying activity were determined by using three types of single-well push-pull tests; transport, biostimulation and activity tests. During the tests, changes in microbial community composition were also investigated using denaturing gradient gel electrophoresis (DGGE) of 16S rRNA genes. Transport test demonstrated that non-reactive tracer and biologically reactive solutes behaved similarly. A biostimulation test was conducted to stimulate the denitrifying activities of native microorganisms, which were monitored by detecting the simultaneous production of CO(2) and drastic degradations of both nitrate and fumarate after the injection of fumarate as an electron donor and/or carbon source, with nitrate as an electron acceptor. A phylogenetic analysis suggested that the taxonomic affiliation of the dominant species before biostimulation was 관-Proteobacteria, including Acinetobacter species and Pseudomonas fluorescens, while the dominant species after biostimulation were affiliated with 관-Proteobacteria, cytophaga-Flavobacterium-Bacteroides and high G+C gram-positive bacteria. These results suggest that the analyses of groundwater samples using a combination of single well push pull tests with DGGE can be applied to investigate the activity, diversity and composition shift of denitrifying bacteria in a nitrate-contaminated aquifer.</P>
하수기반 역학 바이오 모니터링을 통한 COVID-19 조기검출
김란희 ( Kim Lan Hee ),김상국 ( Kim Sangkook ),윤효직 ( Yoon Hyojik ),김성표 ( Kim Sungpyo ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-
Wastewater-based epidemiology (WBE) monitoring tool has been used to detect illicit drugs and environmental contaminants in wastewater samples collected from the influent of wastewater treatment plants (WWTPs). The WBE can provide spatial and temporal information about the community footprint in the living area. As the coronavirus (COVID-19) disease, which is caused by severe acute respiratory syndrome coronavirus (SARS-CoV) become pandemic in 2019, many countries have employed the WBE monitoring tool enabling early-detection or monitoring of the infected cases (symptomatic and non-symptomatic) in the community without disturbance of individual privacy. However, various COVID-19 detection methods applied in studies made difficulties in method standardization. Besides, the extraction efficiency is depending on the virus properties and the water types. Therefore, evaluation of developed detection methods and data quality analysis should be required. We evaluated and optimized COVID-19 detection methods in the real wastewater influent and sludge samples. To detect COVID-19, four different extraction methods, absorption-elution ultrafiltration, ultracentrifugation, centrifugation/ultrafiltration, and PEG precipitation, have been compared. The viral RNA was extracted using a QIAamp<sup>®</sup> viral RNA mini kit (Qiagen, USA), and the COVID-19 was detected using a GoTaq<sup>®</sup> probe 1-step RT-qPCR (Promega, USA) with two COVID-19 nucleocapsid-specific primers, N1 and N2. The viral community in the samples was analyzed through a NGS-based metagenomic sequencing. This study would help to make a guideline of the COVID-19 detection standard method and to develop quality assurance (QA) and quality control (QC) protocol.
김란희 ( Kim Lan Hee ),윤효직 ( Yoon Hyojik ),김성표 ( Kim Sungpyo ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-
2020년 현재 전 세계적으로 창궐한 신종코로나 바이러스(SARS-CoV-2)가 각국에 미친 경제적/문화적/사회적 파급효과는 유래를 찾아보기 어려울 지경이다. 특히 신종 코로나 바이러스는 무증상 감염자도 타인을 감염 시킬 수 있기 때문에 지역 감염을 막는 역학 조사를 실시하는데 매우 큰 어려움이 있다. 최근 해외에서는 하수기반 역학(Wastewater Based- Epidemiology)기법을 이용하여 신종코로나의 지역에서의 증가를 대비하려는 노력이 매우 급속하게 진행되고 있고 이에 대한 일부 성과도 얻고 있다. 본 발표에서는 시민들의 생활상 및 건강지표를 개인적 사생활에 대한 침범 없이 모니터링 할 수 있는 하수 역학에 대해 간단히 살펴보고, 신종코로나 바이러스를 모니터링을 적절하게 하기 위한 여러 과제에 대해 살펴 볼 예정이다. 주로 다룰 내용은 하수에서 측정하는 샘플링 방법, 전처리 방법 및 이를 제도화하기 위한 지자체간의 협력적 방안 등에 대해 발표하려고 한다.