研究论文
郭瑾珑,王毅力,李大鹏,汤鸿霄.气浮过程中的界面相互作用[J].环境科学学报,2003,23(2):194-200
气浮过程中的界面相互作用
- Interfacial interaction between the bubbles and particles in the flotation process
- 基金项目：国家自然科学基金(50178009);“九·五”攻关项目(No.969090302)
- 作者
- 单位
- 郭瑾珑
- 中国科学院生态环境研究中心环境水质学国家重点实验室,北京 100085
- 王毅力
- 北京林业大学资源与环境学院,北京 100083
- 李大鹏
- 北京航空航天大学环境工程学院,北京 100085
- 汤鸿霄
- 中国科学院生态环境研究中心环境水质学国家重点实验室,北京 100085
- 摘要：首先讨论了水体颗粒物的基本性质以及气泡的形成过程,而后对气液界面上胶体颗粒的吸附进行分析.其次讨论了气浮过程中,气泡与颗粒物之间的相互作用,对气泡与颗粒物之间的碰撞进行分析.结合紊流气浮的理论与应用,在气浮过程中的界面相互作用分析的基础上,设计了一种新型集成的溶气气浮水处理工艺,即逆流共聚气浮工艺.
- Abstract：The basic properties of the suspended particles in water body and the bubble nucleation process was presented, then the adsorption of the particles on the stagnant gas/liquid interface was analyzed, the interaction between the suspended particles and bubbles during flotation process was discussed, and the collision models were compared. On the basis of turbulent flotation, a new kind of dissolved air flotation method name counter current co-flocculation flotation (CCC-FF) was put forward. The interfacial interactions in the CCC-FF reactor and their influence on the turbidity removal were analyzed, and the operational parameters of the reactor were optimized. Furthermore, the comparison between the conventional and CCC-FF water purification method was carried out.
- Key words：flotation interfacial interaction bubble particle
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