| FTIR/ATR光谱快速测定糖厂废水COD |
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| 引用本文： | 纪强,潘涛,廖辛炎.FTIR/ATR光谱快速测定糖厂废水COD[J].佳木斯工学院学报,2011(3):365-366,369. |
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| 作者姓名： | 纪强 潘涛 廖辛炎 |
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| 作者单位： | [1]暨南大学光电信息与传感技术广东普通高校重点实验室,广东广州510632 [2]暨南大学信息科学技术学院,广东广州510632 [3]广西博庆食品有限公司,宜州546300 |
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| 基金项目： | 国家自然科学基金（10771087 61078040）; 广东省科技计划粤港重点领域招标项目（2007A020905001） |
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| 摘 要： | 利用FTIR/ATR光谱技术建立糖厂废水化学需氧量（COD）的快速测量方法.基于光谱Savitzky-Golay（SG）平滑和偏最小二乘法（PLS）建立光谱优化模型.建立计算机算法平台,把540种平滑模式和1-40的PLS因子数任意组合分别建立SG-PLS模型,预测效果最优的模型平滑模式为2阶导数平滑,6次多项式,51平滑点数,其对应的PLS因子数（F）、预测均方根偏差（RMSEP）和预测相关系数（RP）分别为11,24.4 mg/L和0.968,预测相关很高,并且明显优于未做SG平滑的直接PLS模型.
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| 关 键 词： | 糖厂废水 化学需氧量 FTIR/ATR PLS SG平滑 |
Rapid Determination of Wastewater COD for Sugar Refinery by TIR/ATR Spectroscopy |
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| Authors: | JI Qiang PAN Tao LIAO Xin-yan |
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| Affiliation: | 1.Key Laboratory of Optoelectronic Information and Sensing Technologies,Guangdong Higher Educational Institutes(Jinan University),Guangzhou 510632,China;2.College of Information Science and Technology,Jinan University,Guangzhou 510632,China;3 Guangxi Boqing Food Company LTD,Yizhou 546300,China) |
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| Abstract: | The rapid determination method of wastewater chemical oxygen demand（COD） for sugar refinery was established by FTIR/ATR spectroscopy.The optimal spectral analysis model was established based on partial least squares（PLS） and Savitzky-Golay（SG） smoothing method.By establishing the computer algorithm platform,for any combination of 540 SG smoothing modes and 1-40 PLS factors,the SG-PLS models were constructed respectively.The SG smoothing mode of the optimal degree po al model is the 2nd order derivative smoothing,6lynomial,51 smoothing points,and the corresponding PLS factor（F）,the root mean square error of prediction（RMSEP） and prediction correlation coefficient（RP） are 11,24.4 mg/L and 0.968 respectively.The prediction relation was very high and this model was obviously superior to the direct PLS model without SG smoothing. |
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| Keywords: | wastewater for the sugar refinery COD FTIR/ATR PLS SG smoothing |
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