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경기북부지역 지하수의 지역별 미량무기물질 함유실태 조사연구
오조교(Jin-Seok Son),손진석(Yong-Soo Bae),배용수(Eun-Hee Jung),정은희(Jin-Ho Park),박진호(Sun-Min Hwang),황선민(Yeon-Hoon Jung),정연훈(Jo-Gyo Oh) 대한환경위생공학회 2004 대한환경위생공학회지 Vol.19 No.1
Ground water samples were collected from residential, green" industrial, landfill and mining area and analyzed for 23 inorganics from March to October in 2002.<br/> The results are as follows;<br/> 1. The detection frequencies of inorganic materials such as As, Ba, B, Mo, Ca, Mg, AI, Cu,<br/> Fe, Mn, Zn, Na, K were 7.2-77.1% which showed that these inorganics were detected in many ground waters.<br/> 2. The detection frequencies of 7 inorganics (Cd, Cr, Pb, Se, Sb, Be, TJ) were commonly low<br/> at ranging from 0.42 to 2.5%. These inorganics were contained in ground water partially.<br/> 3. Three inorganics such as Hg, Ni, Ag were not detected in any ground-water samples. 4. Compared to the other areas, ground water samples from landfill area contained greater<br/> concentration in many inorgainics and then showed higher levels in industral, residential,<br/> mining and green area in order.<br/> 5. Compared to noted concentrations of bottled water, inorganic minerals including Ca, Mg,<br/> Na, K related to taste were fluent in target samples. The results showed that the average<br/> concentrations of Mg, Na, K were 4.0 mg/ℓ, 14.7 mg/ℓ, 1.5 mg/ℓ respectively.<br/> 6. The concentrations of inorganics such as Sb, Ba, Mo, Be, Tl, K in some ground water<br/> samples exceeded the water quality standards of WHO, the US and UK<br/> Especially, Ba, Mo, K also showed relatively high detection frequencies so these inorganics need to be considered as analytes in Korea Drinking Water Regulation in further study.
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.
가평지역의 지하수중에 함유된 미네랄성분 조사에 관한 연구
박경수(Gyoung-Su Park),김종찬(Jong-Chan Kim),오조교(Jo-Gyo Oh),권경안(Kyung-Ahn Kweon),정은희(Eun-Hee Jung),황선민(Sun-Min Hwang) 대한환경위생공학회 2005 대한환경위생공학회지 Vol.20 No.1
Ground water samples of 275 were collected from Gapyeong county which it contained six-eup and myeon and analyzed for 12 mineral inorganics extending from March to October in 2004.<br/> Among the inorganics, Calcium, Magnesium, Sodium, Potassium, Copper and Zinc had more than 70% of detection frequencies, which coincided with essential inorganics required by the human body. The average values of inorganic contents by sampling sites were insignificant. Fluorine contents of 8 samples, 2.9% of 275 samples, exceeded KDWR, and it was considered to be affected by a base rock being made up granite and gneiss because there were not polluting sources around. It is necessary to find out relation between geological characteristics and mineral inorganics in ground water through the further investigation.<br/> Compared to noted concentrations of bottled water, inorganic minerals including Calcium, magnesium, Sodium and Potassium related to taste were fluent double in target samples and those average concentrations were 14.80, 3.80, 7.60, and 2.31 ㎎/L respectively.
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.-