Determination of kappa number reduction in pulp and COD in bleach plant effluents using multiwavelength spectrometry and multivariate calibration

被引：0
|
作者：
Sparén, A [1 ]
Renberg, L
Furusjö, E
Hillforth, CA
Danielsson, LG
机构：
[1] AstraZeneca, Tablet Prod Sweden, SE-15185 Sodertalje, Sweden
[2] Eka Chem, Bohus, Sweden
[3] IVL Swedish Environm Res Inst, Stockholm, Sweden
[4] Cellchem AB, Stockholm, Sweden
来源：
TAPPI JOURNAL | 2003年 / 2卷 / 01期
关键词：
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
We propose a method for the simultaneous determination of kappa number reduction in pulp over a bleaching stage and chemical oxygen demand (COD) in bleach plant effluents, using multiwave-length spectrometry on the effluent and multivariate calibration. A model for kappa number reduction, based on ultraviolet (UV) spectra from a flow system, gave a mean prediction error of 0.24 K units. Models for COD gave relative errors of 2.8%-3.7% and 6%-8%, for the UV and visible/near infrared region (manual measurements), respectively. These prediction errors are similar to those expected from the manual reference measurements.
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页码：16 / 21
页数：6
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