Optimization of ozone bleaching conditions for improving wheat straw pulp quality using response surface methodology

被引：12

作者：

Tripathi, Sandeep Kumar ^{[1
]}

Bhardwaj, Nishi Kant ^{[2
]}

Ghatak, Himadri Roy ^{[1
]}

机构：

[1] St Longowal Inst Engn & Technol, Dept Chem Engn, Sangrur 148106, Punjab, India

[2] Avantha Ctr Ind Res & Dev, Paper Mill Campus, Yamunanagar 135001, India

来源：

OZONE-SCIENCE & ENGINEERING | 2019年 / 41卷 / 02期

关键词：

Brightness; Consistency; Kappa Number; Ozone Bleaching; Pulp Quality; Response Surface Methodology; Viscosity; Wheat Straw Pulp; KRAFT PULP; CELLULOSE; ACID; SELECTIVITY; EXTRACTION; XYLANASE; PART;

D O I：

10.1080/01919512.2018.1508331

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ozone bleaching conditions for wheat straw soda pulp were optimized using response surface methodology with central composite design. Effect of pH, consistency, and ozone dose on kappa number, brightness, and viscosity was investigated. Optimized process conditions to get minimum kappa number, maximum viscosity, and brightness were obtained as follows: pH 2.08-2.25, pulp consistency 27.4-30.0%, and ozone dose 0.4%. Validation of the model predicted values and experimental values obtained for optimum conditions has the difference of 0.5-2.0%, which shows that the developed model for ozone bleaching of wheat straw pulp is satisfactory.

引用

页码：137 / 145

页数：9

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