EFFLUENT-FREE BLEACHED KRAFT PULP-MILL - PRESENT STATE OF DEVELOPMENT

被引：0
|
作者：
RAPSON, WH
REEVE, DW
机构：
[1] UNIV TORONTO,DEPT CHEM ENGN,TORONTO,ONTARIO,CANADA
[2] ERCO ENVIROTECH LTD,TORONTO,ONTARIO,CANADA
来源：
TAPPI | 1973年 / 56卷 / 09期
关键词：
CHEMICAL PLANTS - CHEMICALS - INDUSTRIAL WASTES - Treatment - WASTE UTILIZATION;
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：
All aqueous effluents from the bleached kraft pulp mill can be eliminated by recovering and reusing all the water and chemicals required for bleaching. In the effluent-free bleached kraft pulp mill, the pulp is washed in a completely countercurrent fashion from the last washer in the bleach plant to the first brown-stock washer. A substantial portion of the chlorine in chlorination is substituted by chlorine dioxide. All the chlorine dioxide and chlorine for bleaching and the sodium sulfate for pulping chemical makeup is produced by the chlorine dioxide generator-evaporator-crystallizer. The design and the present state of development of the effluent-free mill are discussed.
引用
收藏
页码：112 / 115
页数：4
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