造纸废水化学需氧量的双波长紫外光谱法测定

华南理工大学学报(自然科学版) ›› 2012, Vol. 40 ›› Issue (2): 156-160.

• 环境科学与技术 • 上一篇

造纸废水化学需氧量的双波长紫外光谱法测定

王玉峰陈克复莫立焕^† 周志明

华南理工大学制浆造纸工程国家重点实验室∥植物资源化学与化工联合实验室，广东广州 510640

收稿日期:2011-04-12 修回日期:2011-06-28 出版日期:2012-02-25 发布日期:2012-01-04
通信作者: 莫立焕(1971-) ，男，博士，高级工程师，主要从事制浆造纸清洁生产与污染控制研究． E-mail:lhmo@ scut.edu.cn E-mail:ppcwyf@yahoo.com.cn
作者简介:王玉峰(1982-) ，男，博士生，就职于广东省东莞市质量监督检测中心国家纸制品质量监督检验中心，主要从事制浆造纸清洁生产与污染控制研究．
基金资助:
国家“973”计划项目( 2010CB732205)

Determination of Chemical Oxygen Demand of Papermaking Wastewater via Dual-Wavelength Ultraviolet Spectroscopy

Wang Yu-feng Chen Ke-fu Mo Li-huan Zhou Zhi-ming

State Key Laboratory of Pulp and Paper Engineering∥United Lab of Resource Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China

Received:2011-04-12 Revised:2011-06-28 Online:2012-02-25 Published:2012-01-04
Contact: 莫立焕(1971-) ，男，博士，高级工程师，主要从事制浆造纸清洁生产与污染控制研究． E-mail:lhmo@ scut.edu.cn E-mail:ppcwyf@yahoo.com.cn
About author:王玉峰(1982-) ，男，博士生，就职于广东省东莞市质量监督检测中心国家纸制品质量监督检验中心，主要从事制浆造纸清洁生产与污染控制研究．
Supported by:
国家“973”计划项目( 2010CB732205)

摘要/Abstract

摘要： 以两种造纸废水为研究对象，探讨了采用紫外光谱法直接测定废水COD 的可行性．研究发现，两种废水虽然来源不同，但其紫外最大吸收波长均为272 nm，并且废水在272 nm 下的吸光度与COD 具有良好的相关性．以546 nm 的可见光作为参比波长可以消除水样悬浮物对紫外吸光度的干扰，提高相关性曲线的准确性．与标准测试方法的比较表明，双波长光谱法的测量精密度和准确性符合HJ /T 377—2007《化学需氧量( COD_Cr ) 水质在线自动监测仪》的要求，可以用于废水COD 的快速测定．

关键词: 造纸废水, 化学需氧量, 双波长光谱法, 快速测定

Abstract:

This paper deals with the feasibility of direct COD ( chemical oxygen demand) determination for papermaking wastewater via ultraviolet spectroscopy,with two kinds of papermaking wastewater being used in the experiments. The results show that ( 1) the two kinds of papermaking wastewater both possess the maximum UV absorption wavelength of 272nm although they are of different sources; ( 2) there is a good correlation between the UV absorbance at 272nm and the COD; and ( 3) by using 546nm as a reference wavelength,the interference of suspended solids in the wastewater with the UV absorbance is eliminated and the correlation curve becomes more accurate. Moreover,as compared with the standard testing method of COD,the proposed dual-wavelength method is of high precision and accuracy that well meet the requirements of Standard HJ /T 377—2007 Water Quality On-Line Automatic Monitor of Chemical Oxygen Demand ( COD_Cr ) ,which means that it is feasible in the rapid determination of COD for papermaking wastewater.

Key words: papermaking wastewater, chemical oxygen demand, dual-wavelength spectroscopy, rapid determination

王玉峰陈克复莫立焕周志明. 造纸废水化学需氧量的双波长紫外光谱法测定[J]. 华南理工大学学报(自然科学版), 2012, 40(2): 156-160.

Wang Yu-feng Chen Ke-fu Mo Li-huan Zhou Zhi-ming. Determination of Chemical Oxygen Demand of Papermaking Wastewater via Dual-Wavelength Ultraviolet Spectroscopy[J]. Journal of South China University of Technology(Natural Science Edition), 2012, 40(2): 156-160.

[1]	陈洪雷陈元彩詹怀宇付时雨. 导数光谱-化学计量学方法测定制浆废水COD[J]. 华南理工大学学报（自然科学版）, 2009, 37(10): 150-154.
[2]	王佳妮谭忆秋张淑娟白晶姜振军宋岩先 . 一种快速测定二灰碎石强度的方法[J]. 华南理工大学学报（自然科学版）, 2008, 36(2): 29-34,47.

造纸废水化学需氧量的双波长紫外光谱法测定

Determination of Chemical Oxygen Demand of Papermaking Wastewater via Dual-Wavelength Ultraviolet Spectroscopy

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