摘要
将微电解技术应用于化学浆漂白E段废水的脱色处理上,并讨论其影响因素.废水的初始pH值和反应时间是影响脱色效率的主要因素,此外曝气和调节出水中和pH值也是反应所必需的条件.实验结果表明:在曝气的条件下,调节进水pH值为3,控制反应停留时间20min,调节反应后中和沉淀pH值为10,废水色度的去除率达到90%.反应前后紫外吸收光谱的变化反应了微电解处理的脱色机理.
The micro-electrolysis method was applied in the decolorizing treatment of bleaching E-stage effluent of Chemical Pulp and the influencing factors were discussed in this paper. The initial pH and the retention time were main factors influencing the color removal rate, in addition, adding air and enough pH for neutralization were necessary for the treatment. The test showed that the decolorizing result was efficient by micro-electrolysis treatment when adding air, initial pH was 3, 20 minutes of reaction time, the final pH 10 for neutralization. The color removal rate was up to 90%. The chance of ultraviolet absorption spectrum also demonstrated the mechanism of color removal in the wastewater treatment.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
2004年第3期252-256,共5页
Journal of Guangxi University（Natural Science Edition）
基金
supported by Natural Science Foundation of Guangdong Province (N0 . 3 1 43 0 )
关键词
漂白废水
碱抽提段废水
脱色
微电解法
bleach plant effluents
alkali extraction stage effluent
decolorization
micro-electrolysis technology
