造纸中段废水处理的研究

论文编号:QH015 论文字数:12530,页数:29

摘 要：本文对混凝沉降法处理造纸中段废水进行了研究，探讨了混凝阶段p H 值以及混凝剂投加量等因素对造纸中段废水COD和色度去除率的影响，确定了最佳处理条件。实验中运用了CPAM絮凝剂（FC265、FC268）、聚合氯化铝、高氯化铁、硫酸铁、硫酸铝对废水进行絮凝，考察了加入量、pH值对絮凝效果的影响，确定了选用聚合氯化铝加入量3mL、pH值为8的时候絮凝效果最好。

关键词：混凝沉降法；混凝剂；造纸中段废水

Study on the Treatment of Washing and Bleaching Effluent in Papermaking Industry

Abstract: Waste water has carried out the main body of a book on to drifting along curdling to sedimentation the middle piece handling a paper making studying, investigation and discussion drift along curdling to have ascertained the best as well as stage p H value drifting along curdling to throw the effect adding amounts wait for a factor to paper making middle piece waste water COD and chroma takeoff rate dose, handling condition. The chlorinating aluminium , high ferric chloride , sulfuric acid iron , aluminum sulfate having wielded CPAM flocculant (FC265 , FC268) , having

got together in the experiment carry out a flocculation on waste water , flocculation effect is best when 3 mL , pH value having inspected the effect adding amounts , pH value to flocculation effect , having ascertained that to select and use the polymerization chlorinating aluminium adding amounts are 8.

Keywords：Coagulation and sedimentation; Coagulant; Washing and bleaching effluent

目 录

中文摘要 I

英文摘要 II

目录 III

1. 绪论 1

1.1 引言.1

1.2 脱色机理.3

1.3 造纸中段废水的物化处理法.3

1.4 造纸中段废水的生化处理法.6

1.5 物化、生化联用的处理方法.8

1.6 研究方案.8

2. 实验部分10

2.1 水样与试剂10

2.2 主要仪器10

2.3 实验方法10

3. 结果与讨论 . 11

3.1 高氯化铁（15.7mg/ mL）投加量研究. 11

3.2 硫酸铁（29.1mg/ mL）投加量研究 13

3.3 硫酸铝（17.0mg/ mL）投加量研究 14

3.4 聚合氯化铝（20.0mg/ mL）投加量研究.15

3.5 聚合氯化铝（20.0mg/ mL）最适 pH 研究17

3.6 聚丙烯酰胺投加量研究.18

3.7 最佳工艺条件下的实验效果 21

4. 总结与展望22

致谢. 23

参考文献 24