Junfeng MIAO, Bin TANG, Qing CHEN, Zourong LONG, Binqiang YE, Yan ZHOU, Jinfu ZHANG, Mingfu ZHAO, Mi ZHOU. Research on CNN-GRU industrial wastewater classification model based on UV-Vis spectroscopy[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(1): 73
- Journal of Atmospheric and Environmental Optics
- Vol. 19, Issue 1, 73 (2024)
Fig. 1. Structure diagram of experimental platform based on ultraviolet-visible spectroscopy
Fig. 2. UV-Vis spectral data of 0-500 mg/L COD solution
Fig. 3. Gated recurrent unit structure
Fig. 4. Flow chart of CNN-GRU network model
Fig. 5. Raw spectral data
Fig. 6. Noised spectral data. (a) 50 dB; (b) 40 dB; (c) 30 dB; (d) 20 dB
Fig. 7. Gaussian filter denoising with 30 dB noise added
Fig. 8. Gaussian filter denoising of raw data
Fig. 9. CNN-GRU model COD classification training result diagram
|
Table 1. Industrial wastewater COD classification standard
|
Table 2. Output dimension of each layer of CNN-GRU network
| ||||||||||||||||||||||||||||||||||||||||||||
Table 3. The result of spectral denosing
|
Table 4. Model prediction results comparison
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20