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남우경 ( Woo-kyong Nam ),최일우 ( Il-woo Choi ),김요용 ( Yo-yong Kim ),임한수 ( Han-soo Lim ),김문정 ( Moon-jeong Kim ),임채국 ( Chae-kook Lim ),김수현 ( Soo-hyun Kim ),김태화 ( Tae-hwa Kim ) 한국환경분석학회 2017 환경분석과 독성보건 Vol.20 No.3
Analysis of the water quality characteristics of the Bokha stream showed that it had much higher biological oxygen demand (BOD), ammonia nitrogen (NH<sub>3</sub>-N) and total nitrogen (T-N) levels than other streams, and was influenced considerably by influxes from midstream and downstream. In the case of BOD, the nitrogenous oxygen demand (NOD) ratio by NH3-N is higher than that by organic material, and therefore, controlling the NH3-N concentration will improve the stream water quality. Pollution loads from the Jukdang stream and the Icheon sewage treatment plant account for 71% and 74% of BOD and TN, respectively. Considering that more than 90% of the flow from the Jukdang stream is discharge from an upstream large-scale semiconductor wastewater treatment facility, the quality of the effluent discharged by it and that from Icheon sewage treatment plant are clearly important factors affecting the quality of the stream water. Although the effluent from the two facilities satisfies quality standards for discharge water, it has a great influence on the Bokha stream. Therefore, the standard for discharge water when the flow level is high should be reviewed, considering the characteristics of the area and the environmental capacity of the area.
Cu<sup>2+</sup>, Al<sup>3+</sup>, Zn<sup>2+</sup>이 활성슬러지에 미치는 저해영향 평가
김창규,김요용,박익범,송진호,남우경,한송희,김복준,오조교,Kim, Chang-Gyu,Kim, Yo-Yong,Park, Ik-Beom,Song, Jin-Ho,Nam, Woo-Kyong,Han, Song-Hee,Kim, Bok-Jun,Oh, Jo-Gyo 한국물환경학회 2015 한국물환경학회지 Vol.31 No.2
In this study, the inhibitory effect of toxic metals was investigated on the activated sludge of the municipal sewage treatment plant. The allowable concentration of toxic metals was also estimated for the stable operation of the biological treatment process. The single and mixture toxicity of $Cu^{2+}$, $Al^{3+}$ and $Zn^{2+}$ were evaluated for the activated sludge microorganisms. As a result, nitrifying microorganisms were more susceptible than heterotrophic microorganisms. $IC_{10}$ (Inhibition Concentration of 10%) of $Cu^{2+}$, $Al^{3+}$ and $Zn^{2+}$ for the nitrifying microorganisms was 3 mg/L, 7 mg/L and 25 mg/L, respectively. The mixture toxicity showed three times more sensitive than the single toxicity. The concentrations of $Cu^{2+}$, $Al^{3+}$ and $Zn^{2+}$ to minimize the inhibitory effect on organic matter removal and nitrification in batch experiments were found to be 1.3 mg/L, 2.5 mg/L and 6.3 mg/L.
P-44 : 경기도내 호소의 수질변화특성에 관한 조사 연구
송진호 ( Jin Ho Song ),정주용 ( Ju Yong Jeong ),황선민 ( Sun Min Hwang ),남우경 ( Woo Kyong Nam ),권상조 ( Sang Jo Kwon ),김복준 ( Bok Jun Kim ),우정식 ( Jung Sik Woo ),조덕희 ( Deok Hee Cho ),오조교 ( Jo Gyo Oh ),이정복 ( Jeong B 한국물환경학회(구 한국수질보전학회) 2013 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2013 No.-
Cu2+, Al3+, Zn2+이 활성슬러지에 미치는 저해영향 평가
김창규 ( Chang Gyu Kim ),김요용 ( Yo Yong Kim ),박익범 ( Ik Beom Park ),송진호 ( Jin Ho Song ),남우경 ( Woo Kyong Nam ),한송희 ( Song Hee Han ),김복준 ( Bok Jun Kim ),오조교 ( Jo Gyo Oh ) 한국물환경학회 2015 한국물환경학회지 Vol.31 No.2
In this study, the inhibitory effect of toxic metals was investigated on the activated sludge of the municipal sewage treatment plant. The allowable concentration of toxic metals was also estimated for the stable operation of the biological treatment process. The single and mixture toxicity of Cu2+, Al3+ and Zn2+ were evaluated for the activated sludge microorganisms. As a result, nitrifying microorganisms were more susceptible than heterotrophic microorganisms. IC10 (Inhibition Concentration of 10%) of Cu2+, Al3+ and Zn2+ for the nitrifying microorganisms was 3 mg/L, 7 mg/L and 25 mg/L, respectively. The mixture toxicity showed three times more sensitive than the single toxicity. The concentrations of Cu2+, Al3+ and Zn2+ to minimize the inhibitory effect on organic matter removal and nitrification in batch experiments were found to be 1.3 mg/L, 2.5 mg/L and 6.3 mg/L.
DNPH cartridge/LC-MS 방법에 의한 반월ㆍ시화산업단지의 폼알데하이드 분석에 관한 연구
조덕희(Deok-Hee Cho),송일석(Il-Seok Song),김인구(In-Gu Kim),김웅수(Woong-Soo Kim),김종보(Jong-Bo Kim),김태현(Tae-Hyun Kim),황선민(Sun-Min Hwang),남우경(Woo-Kyong Nam) 대한환경위생공학회 2006 대한환경위생공학회지 Vol.21 No.1
Formaldehyde is important because of their irritant and toxic properties, mutagenicity and carcinogenicity. In this study, liquid chromatography-mass spectrometry (LC-MS) is used for the analysis of formaldehyde after derivatization with 2,4-dinitrophenylhydrazine (DNPH) cartridge. Analytical parameters such as linearity, repeatability and minimum detection limit were evaluated. The linearity (r²) was 0.9997 when analyte concentration ranges from 25 to 200 ㎍/ℓ. The relative standard deviation (%RSD) was 1.25 % for concentration of 200 ㎍/ℓ. The minimum detection limit (MDL) was 0.73 ppbv. It was shown that LC-MS method has a great potential for formaldehyde analysis. The results of formaldehyde from the survey of Ban-Woll and Shi-Hwa Industrial Complex samples, the highest level was 6.20, 3.93 ppb, respectively. The highest emission level of formaldehyde at chemical plants in the Ban-WollㆍShi-Hwa Industrial Complex was 5421.25 ppb.