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Influence of temperature and turbidity on water COD detection by UV absorption spectroscopy

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Abstract

Ultraviolet (UV) absorption spectroscopy is used to detect the concentration of water chemical oxygen demand (COD). The UV absorption spectra of COD solutions are analyzed qualitatively and quantitatively. The partial least square (PLS) algorithm is used to model COD solution and the modeling results are compared. The influence of environmental temperature and turbidity is analyzed. These results show that the influence of temperature on the predicted value can be ignored. However, the change of turbidity can affect the detection results of UV spectra, and the COD detection error can be effectively compensated by establishing the single-element regression model.

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DOI:10.1007/s11801-016-6178-z

基金项目:This work has been supported by the National Natural Science Foundation of China (No.61475133), the Science and Technology Research and Development Project of Hebei Province (Nos.14273301D, 15273304D, 16273301D and 16213902D).

收稿日期:2016-08-11

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ZHOU Kun-peng:The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, ChinaSchool of Physics and Electronic Information, Inner Mongolia University for Nationalities, Tongliao 028000, China
BI Wei-hong:The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
ZHANG Qi-hang:The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
FU Xing-hu:The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
WU Guo-qing:The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China

联系人作者:BI Wei-hong(whbi@ysu.edu.cn)

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引用该论文

ZHOU Kun-peng,BI Wei-hong,ZHANG Qi-hang,FU Xing-hu,WU Guo-qing. Influence of temperature and turbidity on water COD detection by UV absorption spectroscopy[J]. 光电子快报(英文版), 2016, 12(6): 461-464

ZHOU Kun-peng,BI Wei-hong,ZHANG Qi-hang,FU Xing-hu,WU Guo-qing. Influence of temperature and turbidity on water COD detection by UV absorption spectroscopy[J]. Optoelectronics Letters, 2016, 12(6): 461-464

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