• 한국양식학회지
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• 제10권4호
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• pp.435-438
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• 1997

전기분해를 이용한 해수의 암모니아성 질소 및 대장균 제거에 효과적이었다. 암모니아의 제거효율은 전류의 세기가 클수록, 반응 시간이 길수록, 극판간격이 좁을수록 증가하였다. 해수내 250/100 m\ell$의 대장균은 모든 실험 조건에서 검출되지 않아, 살균 목적으로 전기분해가 매우 효과적이었다. 암모니아의 제거 효율은 잔류 염소의 농도에 따라 증가하였다. 암모니아의 제거 효율과 잔류 염소와의 관계는 다음과 같다.$NH_4^+-N(%)=4cdotlog[Residual\;chlorine(mg/\ell)+28(r=0.892)$

• 한국산업융합학회 논문집
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• 제10권1호
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• pp.15-20
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• 2007

The aim of this study is to measure the removal characteristics of organic matter and bacteria with the use of ozone to reduce the problems caused by bacteria and organic matter which appear in sea-water is summer season. When the total input of ozone was $1.4mg/{\ell}O_3$, the removal rate of bacteria and E-coli from sea-water proved to be 100%. With the same input of ozone, on the other hand, the removal rate of COD turned to be relatively low, 50%, which was to the fact that sea-water consists of salt matter which is a kind of COD matter. This result supports the idea that we can keep using ozone steadily in the future to remove organic matters and bacteria from sea-water because ozone destructs relatively less salt matter in sea-water. Also, the treatment effect rate of SS, turbidity and organic matters such as $NH_3$-N, $NO_3$-N etc, was very high. As a result, we assume that the treatment of organic matter in sea-water with ozone is very effective

• 한국가스학회지
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• 제14권3호
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• pp.1-7
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• 2010

(주)시원기업에서 개발한 선회류식 세정전해기술을 이용한 실내공기오염물질 제거장치를 이용하여 다중이용시설에 관한 실내공기질 관리법에 따라 미세먼지, 냄새, VOC 등의 실내공기질을 기준치 이하로 제거하는 실험을 30분 동안 진행한 결과 미세분진(담배연기)은 $920{\mu}g/m^3{\rightarrow}112{\mu}g/m^3$로 저감되었고 가스상 물질은 포름알데히드(HCHO) 20ppm$\rightarrow$4ppm, 암모니아($NH_3$) 50ppm$\rightarrow$1ppm, 트리메틸아민($(CH_3CH_2)_3N$) 15ppm$\rightarrow$trace, 메틸에틸케톤($CH_3COC_2H_5$) 25ppm$\rightarrow$trace, 아세트알데히드($CH_3CHO$) 15ppm$\rightarrow$2ppm, 초산($CH_3COOH$) 20ppm$\rightarrow$trace, 아세톤($CH_3COCH_3$) 50ppm$\rightarrow$N.D로 고효율의 제거성능을 보여 선회류 세정장치에서 전해수를 세정하여 생성되는 세정필터를 이용한 실내공기질 저감기술로 실내환경을 쾌적하게 유지하는 것을 확인하였다. 오염물질을 제거하고 배출되는 다습한 공기는 실내습도를 40~60%정도로 유지하여 실내를 쾌적하게 하였다. 유해성제거실험으로 전기분해를 이용하여 대장균(E.coli)과 황색포도상구균(S.aureus)에 대해 살균시험을 수행한 결과 99.9%이상의 살균효과를 나타내었고 CODcr, 탁도는 완만한 저감곡선을 보여 세정수의 재이용 여부가 가능한 것을 확인하였다.

• 한국환경과학회지
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• 제23권5호
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• pp.985-993
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• 2014

For the field application of dielectric barrier discharge plasma reactor, a multi-plasma reactor was investigated for the inactivation of microorganisms in sewage. We also considered the possibility of degradation of non-biodegradable matter ($UV_{254}$) and total organic carbon (TOC) in sewage. The multi-plasma reactor in this study was divided into high voltage neon transformers, gas supply unit and three plasma modules (consist of discharge, ground electrode and quartz dielectric tube). The experimental results showed that the inactivation of microorganisms with treated water type ranked in the following order: distilled water > synthetic sewage effluent >> real sewage effluent. The dissolved various components in the real sewage effluent highly influenced the performance of the inactivation of microorganisms. After continuous plasma treatment for 10 min at 180 V, residual microorganisms appeared below 2 log and $UV_{254}$ absorbance (showing a non-biodegradable substance in water) and TOC removal rate were 27.5% and 8.5%, respectively. Therefore, when the sewage effluent is treated with plasma, it can be expected the inactivation of microorganisms and additional improvement of water quality. It was observed that the $NH_4{^+}$-N and $PO{_4}^{3-}$-P concentrations of sewage was kept at the constant plasma discharging for 30 min. On the other hand, $NO_3{^-}$-N concentration was increased with proceeding of the plasma discharge.