已筛选与未筛选麦草浆漂白性能的比较

doi:10.3969/j.issn.1000-565X.2010.11.015

华南理工大学学报（自然科学版） ›› 2010, Vol. 38 ›› Issue (11): 80-85.doi: 10.3969/j.issn.1000-565X.2010.11.015

已筛选与未筛选麦草浆漂白性能的比较

李军^1.2吴绘敏^1.2徐峻^1.2王强^1.2曾健^1.2

1. 华南理工大学制浆造纸工程国家重点实验室, 广东广州 510640; 2. 华南理工大学广东省造纸技术与装备公共实验室, 广东广州 510640

收稿日期:2010-01-12 修回日期:2010-04-02 出版日期:2010-11-25 发布日期:2010-11-25
通信作者: 徐峻（1979-），男，讲师，主要从事纸浆清洁生产技术与植物资源利用的研究．E-mail：xujun@seut．edu．cn E-mail:ppjunli@scut．edu．cn
作者简介:李军（1972-），男，副教授，主要从事纸浆清洁生产技术和设备的研究．
基金资助:
国家“十一五”科技支撑计划重点项目（2006BAD32B06-2）; 国家自然科学基金-工程科技发展战略研究联合基金资助项目（U0970164）

Comparison of Bleaching Performance Between Screened and Unscreened Wheat Straw Pulps

Li Jun ^1.2 Wu Hui-min ^1.2 Xu Jun ^1.2 Wang Qiang ^1.2 Zeng Jian ^1.2

1.State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2.Guangdong Public Laboratory of Paper Technology and Equipment,South China University of Technology,Guangzhou 510640,Guangdong,China

Received:2010-01-12 Revised:2010-04-02 Online:2010-11-25 Published:2010-11-25
Contact: 徐峻（1979-），男，讲师，主要从事纸浆清洁生产技术与植物资源利用的研究．E-mail：xujun@seut．edu．cn E-mail:ppjunli@scut．edu．cn
About author:李军（1972-），男，副教授，主要从事纸浆清洁生产技术和设备的研究．
Supported by:
国家“十一五”科技支撑计划重点项目（2006BAD32B06-2）; 国家自然科学基金-工程科技发展战略研究联合基金资助项目（U0970164）

摘要/Abstract

摘要： 以麦草氧碱浆为对象进行QPo漂白和OQPo漂白,比较了筛前浆与筛后浆的QPo漂白及OQPo漂白效果,分析了终漂浆的纤维特性及漂白废水的污染负荷.结果表明：筛前浆和筛后浆的OQPo漂白终漂浆的白度优于QPo漂白终漂浆,但OQPo漂白浆的黏度损失比QPo漂白浆大,得率低于QPo漂白浆;筛前浆的白度增值率和总浆得率都明显高于筛后浆,总浆得率最多比筛后浆高10.6个百分点,白度增值率最多比筛后浆高4.9个百分点;筛前浆与筛后浆终漂浆的重均纤维长度都在0.78mm左右,筛后浆的纤维粗度大于筛前浆;OQPo漂白废水从根本上消除了可吸附有机卤化物（AOX）的产生,其BOD5和COD远远低于传统的CEH漂白.

关键词: 麦草氧碱浆, 筛前浆, 筛后浆, 全无氯漂白, 白度, 得率

Abstract:

Screened and unscreened oxygen-alkali pulps of wheat straw were bleached via QPo and OQPo sequences,and the bleaching effects were compared between screened and unscreened pulp.Furthermore,both the characteristics of the fibers in bleached pulp and the pollution load of the effluent were analyzed.The results show that,as compared with QPo bleaching sequence,OQPo bleaching sequence may result in higher brightness,heavy viscosity loss and low yield for both the screened and the unscreened pulps;that,as compared with the screened pulp,the unscreened pulp is of higher brightness-increasing rate（up to 4.9 percentage points） and total pulp yield（up to 10.6 percentage points）;that the fibers in the screened pulp is about 0.78 mm in weight-average length,which is similar to those in the unscreened pulp,while the fiber coarseness of screened pulp is much higher;and that OQPo bleaching is more environmentally friendly than the traditional CEH bleaching because it completely eliminates absorbable organic halogens and greatly reduces CODCr and BOD5 discharge.

Key words: oxygen-alkali wheat straw pulp, unscreened pulp, screened pulp, totally-chlorine-free bleaching, brightness, yield

李军吴绘敏徐峻王强曾健 . 已筛选与未筛选麦草浆漂白性能的比较[J]. 华南理工大学学报（自然科学版）, 2010, 38(11): 80-85.

Li Jun Wu Hui-min Xu Jun Wang Qiang Zeng Jian. Comparison of Bleaching Performance Between Screened and Unscreened Wheat Straw Pulps[J]. Journal of South China University of Technology (Natural Science Edition), 2010, 38(11): 80-85.

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已筛选与未筛选麦草浆漂白性能的比较

Comparison of Bleaching Performance Between Screened and Unscreened Wheat Straw Pulps

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