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J Korean Soc Environ Eng > Volume 38(11); 2016 > Article
J Korean Soc Environ Eng 2016;38(11): 596-602. doi: https://doi.org/10.4491/KSEE.2016.38.11.596
선박 평형수 내 총 잔류 산화물(Total Residual Oxidant) 분석을 위한 Potassium Iodide (KI) Sensor 적용가능성 평가
권재형, 임헌진, 이광호, 이해돈, 김대원
(주)테크로스 중앙연구소
Feasibility Study on Potassium Iodide (KI) Sensor for Measuring Total Resiudual Oxidant in Ballast Water
Jae Hyeong Kwon, Heon Jin Lim, Gwan Ho Lee, Hai Don Lee, Dae Won Kim
Techcross, Central Research Center
Corresponding author  Dae Won Kim ,Tel: 051-601-4785, Fax: 051-974-0780, Email: kdw@techcross.com
Received: July 26, 2016;  Revised: October 24, 2016;  Accepted: November 4, 2016.  Published online: November 30, 2016.
ABSTRACT
Potassium iodide (KI) TRO sensor for measuring total residual oxidant which is an index for disinfection and neutralization in ballast water has been constructed. The results of UV absorption wavelength and absorbance test in various TRO concentrations show high linear correlation (r2 = 0.9825) at 350 nm wavelengths and it can be possible to visualize numerical value of TRO concentration (0.1~7.0 mg/L). The result of comparison test according to TRO concentration between the KI based TRO sensor system and the DPD based TRO sensor system showed identical trend. Overall results indicated that the KI TRO sensing system could be applied for continuous TRO concentration measurement in ballast water treatment system.
Key Words: Iodide Tiltration, KI TRO Sensor, Ballast Water Treatment System
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