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석탄화력발전시설에서의 TSP 및 PM10, PM2.5 배출특성
송금주,문영훈,주종호,이아영,이재복 한국환경분석학회 2018 환경분석과 독성보건 Vol.21 No.1
To quantify TSP, PM10 and PM2.5 emission characteristics, these parameters were sampled during all processes in a coal-fired power plant. Concentrations of TSP, PM10 and PM2.5 emitted from boiler were high, and the ratios of PM10/TSP and PM2.5 /TSP were very low; this result means that the boiler emitted more coarse particles than fine particles. The ESP removed most of the coarse particles. At the FGD inlet the concentrations of TSP, PM10 and PM2.5 were low, but the ratios of PM10/TSP and PM2.5/TSP were higher than at the SCR inlet. The ESP removed ~99.8%, of the particulates but only ~99.5% of fine particles (PM10) and ~97.3% of ultrafine particles (PM2.5). Among the TSPs emitted from the stack, the proportion of PM10 was 80-85% and of this, the proportion of PM2.5 was 47-56%. Therefore, this study demonstrates that the stack of the plant emitted mostly PM10 and PM2.5, and that the ESP as the dust remover installed in the plant should be improved to remove the fine particles
Characterization of PCDDs/PCDFs Profiles of Various Emission Sources
송금주,최경희 한국환경분석학회 2011 환경분석과 독성보건 Vol.14 No.1
The homologue and congener profiles of PCDDs/PCDFs were characterized for various emission sources in an industrial complex in the west of Seoul, the capital of Korea, in order to identify the own profile and to compare the emission characteristics at each emission source. Waste incinerators and manufacturing industrial plants were identified as the major emission sources. PCDDs/PCDFs were sampled three times from stack emission of each facility and all congeners of PCDD/PCDF were analyzed. The homologue profile was calculated as the ratio of the concentration of each homologue to the total concentration of all homologues. The congener profile was calculated as the ratio of the concentration of each 2,3,7,8-substituted congeners to the total concentration of homologues from Cl₄DDs/DFs to Cl_(8)DDs/DFs. The congeners from Cl₁DDs/DFs to Cl₃DDs/DFs were emitted more from manufacturing industry sources and the congeners from Cl₄DDs/DFs to Cl_(8)DDs/DFs were emitted more from waste incineration sources. The homologue profiles and congener profiles by concentration were different according to emission sources, but the congener profiles by toxic equivalents (TEQ) value were similar among the sources. Therefore, PCDDs/PCDFs profiles in various emission sources could be characterized with homologue profiles and congener profiles by concentration, but not by the congener profile with TEQ value.
송금주,정병옥,정석진 한국키틴키토산학회 2013 한국키틴키토산학회지 Vol.18 No.1
본 연구는 키토올리고당을 첨가하여 제조한 두유 마요네즈 의 품질특성을 알아보고자 키토올리고당의 첨가량을 1~5% 범위로 첨가하여 제조하고 점도를 측정한 결과 시중에 유통 중인 마요네즈의 점도인 2000 cP와 비슷한 범위인 2~3% 사 이를 2.2%, 2.4%, 2.6%, 2.8%로 나누어 추가로 실험하였으 며 pH, 유화안정성, 색도, 열량을 측정하였고, 관능검사를 통 해 시중에 유통가능성을 알아보았다. 열량을 측정한 결과 키토올리고당을 5% 첨가한 마요네즈 의 열량이 6698.9 cal/g이고, 난황을 첨가한 마요네즈의 열량 이 7718.6 cal/g, 시중에 유통되고 있는 마요네즈의 열량이 8130.2 cal/g로 키토올리고당을 첨가하여 제조한 두유마요네 즈의 열량이 가장 낮은 값을 나타내었다. 유화안정성을 알아본 결과 키토올리고당의 첨가량이 높아 질 수록 유화안정성이 높아졌으며 5%에서는 98.446%로 매 우 높은 수치를 보였다. 관능검사를 통해 난황이 첨가된 마요네즈보다 키토올리고 당이 2.5% 첨가된 마요네즈가 색, 향, 전체적인 기호도에서 가장 우수했으며 맛, 동반식품과의 어울림에서도 난황이 첨 가된 마요네즈와 유의적인 차이가 적어 관능적 기호도가 좋을 뿐만 아니라 키토올리고당의 기능적인 측면을 고려할 때 기능성 식품으로써 손색이 없음을 알 수 있었다. 두유마요네즈에 적절한 키토올리고당의 첨가량을 확인할 수 있었으며, 기능성 마요네즈로 키토올리고당이 첨가된 두 유마요네즈를 이용한 드레싱들의 개발도 기대해 볼 수 있다. Mayonnaise is one of the most famous products that usesyolk. However, yolk is known to cause allergies and is high calorie product and thus many families now use soymilk to produce their own mayonnaise. However, soymilk mayonnaise is not commercially produced yet because it is not emulsified enough. To ameliorate this problem, chitin and chitosan, which can be obtained from the crab shells that are usually discarded after the first stage of process, were used to produce chitooligosaccharide (COS). According to our experiment which analyzed some features of the mayonnaise, the emulsion stability was higher when more COS was present and viscosity also augmented as the amount of COS increased. Because the new COS mayonnaise increases the emulsion stability, it is expected that the mayonnaise can be used as functional mayonnaise.
석탄화력발전시설에서 배출되는 TSP, PM10, PM2.5의 유해중금속 분포
송금주 ( Geum-ju Song ),문영훈 ( Young-hoon Moon ),주종호 ( Jong-ho Joo ),이아영 ( A-yeoung Lee ),이재복 ( Jae-bok Lee ) 한국환경분석학회 2018 환경분석과 독성보건 Vol.21 No.3
In this study, the distributions of hazardous heavy metals (HHMs) in TSP, PM10, PM2.5 were investigated. In the coal used in the tested plant, that Zn and Cu were most common HHMs, and Cd was rarest. In TSPs from the SCR inlet, FGD inlet and stack, the content of Zn in the coal was the highest, but the distributions of other HHMs were different. At the SCR inlet, the distributions of HHMs in PM10 and TSP differed, and concentration of HHMs in PM10 and TSP was increased. At the FGD inlet and stack the HHM distributions in PM10 and TSP were the same. At the SCR inlet, the HHM distribution in PM2.5 differed from those in TSP and PM10. At the SCR inlet, the HHM concentration was higher in PM2.5 than in TSP and PM10. At the FGD inlet and stack the distribution of HHMs in PM2.5 was very different from those in TSP and PM10 at FGD.
석탄화력발전시설에서의 TSP 및 PM<sub>10</sub>, PM<sub>2.5</sub> 배출특성
송금주 ( Geum-ju Song ),문영훈 ( Young-hoon Moon ),주종호 ( Jong-ho Joo ),이아영 ( A-yeoung Lee ),이재복 ( Jae-bok Lee ) 한국환경분석학회 2018 환경분석과 독성보건 Vol.21 No.1
To quantify TSP, PM<sub>10</sub> and PM<sub>2.5</sub> emission characteristics, these parameters were sampled during all processes in a coal-fired power plant. Concentrations of TSP, PM<sub>10</sub> and PM<sub>2.5</sub> emitted from boiler were high, and the ratios of PM<sub>10</sub>/TSP and PM<sub>2.5</sub> /TSP were very low; this result means that the boiler emitted more coarse particles than fine particles. The ESP removed most of the coarse particles. At the FGD inlet the concentrations of TSP, PM<sub>10</sub> and PM<sub>2.5</sub> were low, but the ratios of PM<sub>10</sub>/TSP and PM<sub>2.5</sub>/TSP were higher than at the SCR inlet. The ESP removed ~99.8%, of the particulates but only ~99.5% of fine particles (PM<sub>10</sub>) and ~97.3% of ultrafine particles (PM<sub>2.5</sub>). Among the TSPs emitted from the stack, the proportion of PM<sub>10</sub> was 80-85% and of this, the proportion of PM<sub>2.5</sub> was 47-56%. Therefore, this study demonstrates that the stack of the plant emitted mostly PM<sub>10</sub> and PM<sub>2.5</sub>, and that the ESP as the dust remover installed in the plant should be improved to remove the fine particles.
키토산의 점성도평균분자량에 따른 천년초(Opuntia humifusa) 와인의 품질특성
송금주 ( Keum Joo Song ),김제중 ( Je Jung Kim ),정병옥 ( Byung Ok Jung ),정석진 ( Suk Jin Chung ),윤진아 ( Jin A Yoon ) 한국키틴키토산학회 2013 한국키틴키토산학회지 Vol.18 No.4
This study try to produce a wine using the cheonnyuncho to examine the quality characteristics of the cheonnyuncho wine according to the viscosity-average molecular weight. In the result of measurement of the chromaticity in accordance with the WSCs and WSCt according to the viscosity-average molecular weight, as viscosity-average molecular weight is small, indicating values L, a are high. Higher viscosity-average molecular weight of WSCs of the resulting of measuring the pH showed a low value and acidity showed a high value. Lower viscosity-average molecular weight of WSCs of the resulting measuring the reducing sugar content showed a low value and alcohol content showed a high value. In the result of measuring the antioxidant effect, total polyphenol content, total flavonoid content, the total tannin content showed the same value regardless of added WSCs. However, the value of DPPH radical scavenging ability and SOD radical scavenging ability`s case showed a change. It can be seen by potential treatment that not only by adjusting chromaticity, acidity, alcohol content but also by improving the antioxidation function of cheonnyuncho wine according to the viscosity-average molecular weight of WSCs.