Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption

Journal of Atmospheric and Environmental Optics ›› 2009, Vol. 4 ›› Issue (5): 393-400.

• 论文 • Previous Articles

Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption

CHENG Yin, LIU Jian-guo, LU Yi-huai, WANG Ya-ping, FANG Wu, CHEN Jun

（Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Heifei 230031,China）

Received:2009-05-05 Revised:2009-08-17 Online:2009-09-28 Published:2009-09-28

Abstract

Abstract:

In water quality measuring methods using ultraviolet spectrum absorption, optical signal detecting techniques are very important. Key techniques are the time-sharing sampling system containing background light sampling, referring and measuring with one detector in double light path, and eliminating influence that comes from the drift of light source and background light. The double wavelength band detecting model can overcome the influence of turbidity in water. The techniques make apparatus more precise and reliable. The standard deviation is less than 1% and the maximum relative error is less than 2% for measurement of standard solutions. These results indicate that the precision and accuracy of the apparatus are good.

Key words: water pollution, absorbance, ultraviolet absorbance, signal detecting and processing

CLC Number:

CHENG Yin, LIU Jian-Guo, LU Yi-Huai, WANG Ya-Ping, FANG Wu, CHEN Jun. Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption[J]. Journal of Atmospheric and Environmental Optics, 2009, 4(5): 393-400.

References

[1] Wu Shudai. Water and Wastewater Monitoring Analysis Method Guide [M]. Beijing: China Environmental Science Publishing House, 1989: 225-230(in Chinese).
吴淑岱. 水和废水监测分析方法指南 [M]. 北京: 中国环境科学出版社, 1989: 225-230.
[2] Mrkva M. Automatic U.V.-control system for relative evaluation of organic water pollution [J]. Water Research, 1975, 9(5): 587-589.
[3] Manool B A, Morgan P G. Organic pollutant monitor: USA 5420432[P/OL]. 1995-05-30. http://www.patentstorm.us/patents/5420432.html
[4] Wang Junrong. Recovery and reuse of silver form waste liquid of CODcr tests [J]. Industrial Water& Wastewater, 2005, 36(3):16-17(in Chinese).
王俊荣. COD测定废液中银的回收与利用 [J]. 工业用水与废水, 2005, 36(3): 16-17.
[5] The Technical Requirement for Water Quality On-line Automatic Monitor of UV [S](in Chinese). 紫外（UV）吸收水质自动在线监测仪技术要求HJ/T 191-2005 [S].
[6] Zhang Zhengxing. Organic Spectroscopy [M]. Beijing: People’s Medical Publishing House, 1995(in Chinese). 张正行. 有机光谱分析 [M]. 北京: 人民卫生出版杜, 1995.
[7] Shi Hong. Water Quality Analysis Method and Technology [M]. Beijing: Earthquake Publishing House, 1993(in Chinese). 时红. 水质分析方法与技术 [M]. 北京: 地震出版社, 1993.
[8] Li Weihua. Chemical oxygen demand detection method and arithmetic research with UV absorption spectroscopy [D]. Hefei: Master Thesis of Chinese Academy of Sciences, 2003(in Chinese).
李卫华. 紫外吸收光度法测定化学需氧量(COD)方法与算法研究 [D]. 合肥: 中国科学院硕士论文, 2003.
[9] Ma Huichang, Li Xuanpei, Zhang Bin. Real-time monitoring of chemical oxygen demand in water and EW-2100 UV absorption water quality automatic on-line monitor [J]. Analytical Instrumentation, 2007, (2): 64-66(in Chinese).
马惠昌, 李选陪, 张斌. 水体化学需氧量实时在线监测与EW-2100紫外吸收水质自动在线监测仪 [J]. 分析仪器, 2007, (2): 64-66.

Optical Signal Detecting and Processing For Water Quality Measuring System by Ultraviolet Spectrum Absorption

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	PENG Yuquan1,2, KAN Ruifeng1, XU Zhenyu1, XIA Huihui1, NIE Wei1,2, ZHANG Buqiang1,2, PEI Xiaofan1. Temperature Measurement of CH₄/Air Premixed Flat Flame Burner Based on Tunable Diode Laser Absorption Spectroscopy [J]. Journal of Atmospheric and Environmental Optics, 2019, 14(3): 228-234.
[2]	XU Zhen-Yu, LIU Wen-Qing, KAN Rui-Feng, ZHANG Yu-Jun, ZHANG Shuai, SHU Xiao-Wen, HE Ying, ZHANG Liang, TANG Yuan-Yuan. Atmospheric Water Vapor Concentration Measurement Method Based on Tunable Diode Laser Absorption Spectroscopy [J]. Journal of Atmospheric and Environmental Optics, 2011, 6(2): 95-.