더블 빔 구조, 다파장 분석을 적용한 연속식 실시간 COD 측정 센서 개발
Development of Continuous Real-time COD Measurement Sensor with Double Beam and Multiple Wavelength Analysis
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At present, the index of chemical oxygen demand (COD) is widely used as an indicator of organic water pollution with biochemical oxygen demand (BOD). But, traditional COD measurement method are not only with various chemical reagents exhausted, but also long time consumed, the operation procedure and the modification are much professional. This paper reported a novel COD measurement system using double-beam and multiple wavelength analysis UV-VIS spectrometries. It consists of pulsed xenon lamp, twoway optical fiber, optical switch, spectrometer and main processor. Proposed COD measurement system obtains any spectral information of water sample (KHP standard sample and two river water and wastewater) and reference sample (distilled water) in the range of 200~520 nm, corresponding to the COD concentration from 0 to 300 mg/L through calculating the UV absorbance. The system show improved precision and can work continuously fast at time interval about 25 seconds.
Abstract
At present, the index of chemical oxygen demand (COD) is widely used as an indicator of organic water pollution with biochemical oxygen demand (BOD). But, traditional COD measurement method are not only with various chemical reagents exhausted, but also long time consumed, the operation procedure and the modification are much professional. This paper reported a novel COD measurement system using double-beam and multiple wavelength analysis UV-VIS spectrometries. It consists of pulsed xenon lamp, twoway optical fiber, optical switch, spectrometer and main processor. Proposed COD measurement system obtains any spectral information of water sample (KHP standard sample and two river water and wastewater) and reference sample (distilled water) in the range of 200~520 nm, corresponding to the COD concentration from 0 to 300 mg/L through calculating the UV absorbance. The system show improved precision and can work continuously fast at time interval about 25 seconds.
참고문헌 (10)
- S. J. Yu, "Index of organic matter in stream and lake", Journal of Environmental Impact Assessment, 8(1), pp.81~92 (1999)
- S. K. Park, "A study on the comparison and analysis of COD results and experimental methods", Korean J. Sanitation, 12(3), pp.19~29 (1997)
- M. Z. Czae, "Chemical oxygen demand based on spectrophotometric measurement of permanganate", Journal of the Korean Chemical Society, 38(12), pp.880~884 (1994)
- 정형석, "대도시 하수종말처리장 유입 하수의 성상 평가와 인공신경망을 이용한 구성성분 농도 예측", 대한환경공학회지, 28(3), pp.308~315 (2006), 대한환경공학회
- N. Zhou, "Development of determination of chemical oxygen demand (COD) by UV absorption spectrum", Sichuan Environment, 25(1), pp.84~87 (2006)
- N. Matsché, "UV absorption as controlparameter for biological treatment plants", Water Science and Technology, 33(12), pp.211~218 (1996)
- S. S. Chong, "Fibre optic sensors for selected wastewater characteristics", Sensors 2013, 13, pp.8640~8668 (2013)
- Z. Youquan, "A novel monitoring system for COD using optical ultraviolet absorption method", Procedia Environmental Sciences, 10, pp.2348~2353 (2011)
- H. Zhao, "Development of a direct photoelectrochemical method for determination of chemical oxygen demand", Anal. Chem., 76, pp.155~160 (2004)
- M. H. Kutner, "Applied Linear Statistical Models, Fifth Edition" (2005), McGraw-Hill