Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (10): 150-154.

• Environment Science & Technology • Previous Articles    

Determination of Pulping Effluent COD Using Derivative Spectrophotometry- Chemometrics Method

Chen Hong-lei  Chen Yuan-cai  Zhan Huai-yu  Fu Shi-yu   

  1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2009-04-16 Revised:2009-07-06 Online:2009-10-25 Published:2009-10-25
  • Contact: 陈洪雷（1982-），男，博士生，主要从事制浆化学与生物化学研究． E-mail:shaming007@163．com
  • About author:陈洪雷（1982-），男，博士生，主要从事制浆化学与生物化学研究．
  • Supported by:

    国家自然科学基金资助项目（20676045）

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Abstract:

In order to simplify the determination of chemical oxygen demand （COD） of pulping effluent using the conventional methods, a high-speed derivative spectrophotometry-chemometrics method is proposed. In this method, based on the mathematical relationship between the multi-wavelength derivative spectral signals and the known COD values of a set of pulping effluent samples, a calibration model is established using a chemometrics software. With this model, the COD value of a certain pulping effluent can be easily predicted according to the multi-wavelength derivative spectral signals. The proposed method provides a new and convenient approach to the high-accuracy COD determination of pulping effluent without using any chemical reagents.

Key words: pulping effluent, chemical oxygen demand, derivative spectrophotometry, chemometrics