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변상현,박익범 中央醫學社 1989 中央醫學 Vol.54 No.5
14-yr-old symptomatic male patient showed as follows; 1. hepatopathy, nephropathy; ascites, abdominal distension, edema, jaundice, hematuria, abnormal LFT. 2. undetectable s-ceruloplasmin level 16-yr-old asymptomatic male had low s-ceruloplasmin value.
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.