지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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This study was conducted to effectively control the nitrate-nitrogen and microorganism contamination in the small scale water supply system using the mini-module, the pilot plant and the field demonstration plant in turns. The results were as follows; The ion exchange resin was more effective than RO for removal of the nitrate-nitrogen. The nitrate-nitrogen removal rate of RO was constant, but the rate of Ion exchange resin was reduced according to the operation time. The nitrate-nitrogen and sulfate ion were removed up to 90% by ion-exchange resin until regeneration. Chloride ion was increased at the ion exchange resin treated water than raw water. The microorganisms were formed at the ion exchange resin, so a sterilization step is necessary in the water treatment process. The concentration of cations was not changed at the ion exchange resin treatment. Microbial growth happened at the ion-exchange resin, pre-processing filter, and the ultra filtration membrane. The heterotrophic bacteria 420 CFU formed at the ion exchange resin was not detected when sterilized by residual chlorine 0.5 mg/L generated by electrolysis without adding salt. The electricity to make the residual chlorine can be decreased by using the increased chloride ion replaced by nitrate in the ion exchange resin than chloride ion in the raw water, for example when make the residual chlorine 1 mg/L and 6 mg/L, the electricity was reduced 2.9 times, 3.9 times, respectively.
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참고문헌 (10)
참고문헌 신청
Republic of Korea / 2016 / Water Supply and Waterworks Installation ACT
Waterworks Headquarters Incheon Metropolitan City / 2015 / Water works current status report of 2015
The Ministry of Environment / 2013 / Statistics of Waterworks of 2013
Park, J.B. / 2010 / The development of the complex control technic of nitrate and perchlorate using IEXMR Process / The Ministry of Environment
문백수 / 2015 / 정수처리를 위한 전기분해 적용시 잔류염소 생성에 관한 연구 / 한국수처리학회지 23(1):3~12
Waterworks Headquarters Incheon Metropolitan City / 2015 / Water works current status report of 2015
The Ministry of Environment / 2013 / Statistics of Waterworks of 2013
Park, J.B. / 2010 / The development of the complex control technic of nitrate and perchlorate using IEXMR Process / The Ministry of Environment
문백수 / 2015 / 정수처리를 위한 전기분해 적용시 잔류염소 생성에 관한 연구 / 한국수처리학회지 23(1):3~12
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