采用复合工艺去除废水色度的研究

摘要：由于造纸废水组分复杂，污染物浓度高，可生化性差，需要联合多种处理方法对其进行处理，实现废水的达标排放和降低废水处理成本的目的。目前用于造纸工业废水处理的方法主要有沉淀，吸附，膜分离等处理方法以及几种工艺结合的处理方法。本论文介绍了造纸废水处理技术的研究现状，同时讨论了各种处理方法的作用机理以及在造纸废水深度处理中的应用。通过试验初步研究双氧水，次氯酸钠和活性炭直接吸附工艺中去除造纸废水色度吸附剂投加量，反应时间等对色度去除率的影响。10774
通过利用大量色度的监测数据，结果表明：化学氧化法在PH为5，反应时间为50分钟，H2O2投加量为2ml/400ml废水的最优条件下，色度去除率达到33.33%；化学氧化法在PH为5，反应时间为50分钟，NaClO投加量为2ml/400ml废水的最优条件下，色度去除率达到53.33%；活性炭吸附法在PH为5，流速为2ml/min的最优条件下，色度去除率达到84.62%。
关键词：造纸废水；色度；废水处理工艺；化学氧化；吸附
The Study Using Complex Procedures on Chroma Wastewater
Abstract：Papermaking wastewater should be treated with multi-technique to reach discharge standard and decrease the cost because of its complicated components, higher pollutant concentration and bad biodegradability. Nowadays, we use sedimentation, adsorption, membrane separation, treatment methods, and several types of process integration approach to treat the papermaking wastewater. The research status of papermaking treatment techniques was introduced. The application and working mechanism of variety treatment methods in advanced papermaking waste water treatment were discussed. This paper reviews the influence of activated carbon quantity and H2O2, NaClO, reaction time etc on decolorization efficiency of papermaking wastewater.
With a great deal of measuring data of color, Results showed that under optimal condition when the value of PH, reaction time and H2O2 dosage were 5, 50 min and 2ml/400ml wastewater respectively, removal efficiencies of 33.33% could be obtained for chroma when the value of PH, reaction time and NaClO dosage were 5, 50 min and 2ml/400ml wastewater respectively, removal efficiencies of 53.33% could be obtained for chroma ;when the value of PH, running time were 5,2ml/min respectively, removal efficiencies of 84.62% could be obtained for chroma.
Key words: Papermaking Wastewater；Chroma；Wastewater Treatment Process；Chemical Oxidation；Adsorption
目录
1 绪论.1
1.1 综述   1
1.1.1 色度   2
1.1.2 造纸废水   4
1.1.3 处理工艺现状   5
1.2本课题的研究意义与研究内容   9
1.2.1课题的研究意义   9
1.2.2研究内容   10
2 实验材料与方法.12
2.1实验材料   12
2.1.1 造纸废水采集   12
2.1.2 实验试剂   12
2.1.3 实验分析仪器   12
2.2活性炭吸附法   12
2.2.1 实验原理   12
2.2.2实验装置   13
2.2.3实验方法   13
2.3 化学氧化法   14
2.3.1 实验原理   14
2.3.2实验装置   14
3 实验结果与分析16
3.1 化学氧化法   16
3.1.1 双氧水氧化法   16
3.1.2次氯酸钠氧化法   18
3.2 活性炭吸附法   20
3.3 去除效果比较   22
3.3.1化学氧化剂的比较   22
3.3.2不同处理方法的最佳方案去除率比较   23
4 结论24
致谢…..25 采用复合工艺去除废水色度的研究:http://www.youerw.com/huaxue/lunwen_9911.html