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Chinese Journal of Lasers, Volume. 46, Issue 7, 0704008(2019)

Method for Simultaneous Detection of Polymetallic Ions in Industrial Wastewater of Zinc Smelting

Fengbo Zhou1,3, Hongqiu Zhu2、*, and Changgeng Li1、**
Author Affiliations
  • 1 School of Physics and Electronics, Central South University, Changsha, Hunan 410083, China
  • 2 School of Information Science and Engineering, Central South University, Changsha, Hunan 410083, China
  • 3 Department of Information Engineering, Shaoyang University, Shaoyang, Hunan 422000, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (6)
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    References (17)
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    Figures & Tables(6)
    Flow chart of filter interval selection based on correlation coefficient threshold method

    Fig. 1. Flow chart of filter interval selection based on correlation coefficient threshold method

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    Absorption spectra

    Fig. 2. Absorption spectra

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    Calibration curves. (a) Copper (492 nm); (b) cobalt (420 nm); (c) nickel (455 nm)

    Fig. 3. Calibration curves. (a) Copper (492 nm); (b) cobalt (420 nm); (c) nickel (455 nm)

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    Wavelength region selection of Kalman filtering

    Fig. 4. Wavelength region selection of Kalman filtering

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    Mass concentration curves based on Kalman filtering spectrophotometry

    Fig. 5. Mass concentration curves based on Kalman filtering spectrophotometry

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    • Table 1. Predicted results by different algorithms

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      Table 1. Predicted results by different algorithms

      NumberActual mass concentration /(mg·L-1)Predicted mass concentrationby PLS /(mg·L-1)Predicted mass concentration byKalman filtering /(mg·L-1)
      CuCoNiCuCoNiCuCoNi
      11.00.61.21.0320.6211.2391.0240.5881.145
      22.01.22.41.9241.2522.2872.0141.2312.415
      33.01.80.62.8611.7060.6272.9861.8160.581
      44.00.21.53.7690.1941.4294.1840.2071.443
      55.00.82.75.2750.8172.5564.8470.7732.788
      60.51.00.30.5190.9670.2790.4890.9780.312
      71.52.01.81.5312.0621.6841.5451.9341.877
      82.50.43.02.4010.3923.1752.5910.4132.916
      93.51.40.93.6841.4380.9683.3641.3620.873
      104.51.62.14.2471.5632.0144.6851.6292.194
      110.90.71.90.8640.7371.9850.9310.7211.856
      121.81.51.61.8651.5691.5151.7271.4861.544
      132.70.31.32.5870.2931.2392.6340.3111.427
      143.61.11.03.4671.0731.0663.4951.1290.964
      154.21.92.24.2931.9472.0844.3171.8672.278
      Root-mean-square error of prediction0.14700.04410.09430.11240.02790.0663
      Average relative deviation /%4.1703.2515.3222.8622.4643.781
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    Fengbo Zhou, Hongqiu Zhu, Changgeng Li. Method for Simultaneous Detection of Polymetallic Ions in Industrial Wastewater of Zinc Smelting[J]. Chinese Journal of Lasers, 2019, 46(7): 0704008

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    Paper Information

    Category: measurement and metrology

    Received: Feb. 28, 2019

    Accepted: Apr. 1, 2019

    Published Online: Jul. 11, 2019

    The Author Email: Hongqiu Zhu (hqcsu@csu.edu.cn), Changgeng Li ( lcgeng＠csu．edu．cn)

    DOI:10.3788/CJL201946.0704008

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology