지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The ozonation process has been widely used for drinking water disinfection around the world. Recently, the pressurized ozone contactor, in which the side stream typed ozone injection method is installed, has been applied to water treatment system. In this study, numerical calculations were conducted to compare prototype and screw-type ozone contactors based on hydraulic effectiveness in more details. The prototype ozone contactor was already installed and operated in domestic water treatment plant, and the screw-type is the suggested one for improving ozone contact efficiency installing the screw plate to the prototype. Screw turn numbers of screw plate were changed as 3, 5, 7 and 9, respectively for numerical simulation. The CT(concentration of disinfectant in mg/L times time in minutes) value was considered as one of the options for evaluating disinfection ability. From the results, it could be concluded that the performance of the screw-type is higher than that of the protype contactor by controlling the variable T as the tracer time. Also, Morill index of the screw-type(turn numbers = 5 ) appeared to be lower than the other.
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참고문헌 (9)
참고문헌 신청
ANSYS / 2009 / ANSYS CFX 12 Mannual / United King-Dom
Pauline T / 2012 / Ozone inactivation of resistant microorganisms: Laboratory analysis and evaluation of the efficiency of plants / Water Research 46:5893~5903
Robert M / 2002 / Development of a Ct equation for the inactivation of Cryptosporidium oocysts with ozone / Water Research 36:3141~3149
Robert M / 2003 / Development of a Ct equation for the inactivation of Cryptosporidium oocysts with chlorine dioxide / Water Research 37:2773~2783
Slawomir W / 1999 / Variabilty of ozone reaction kinetics in batch and continuous flow reactors / Water Research 33(9):2130~2138
Pauline T / 2012 / Ozone inactivation of resistant microorganisms: Laboratory analysis and evaluation of the efficiency of plants / Water Research 46:5893~5903
Robert M / 2002 / Development of a Ct equation for the inactivation of Cryptosporidium oocysts with ozone / Water Research 36:3141~3149
Robert M / 2003 / Development of a Ct equation for the inactivation of Cryptosporidium oocysts with chlorine dioxide / Water Research 37:2773~2783
Slawomir W / 1999 / Variabilty of ozone reaction kinetics in batch and continuous flow reactors / Water Research 33(9):2130~2138
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