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气浮过程中的界面相互作用
引用本文: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.
作者姓名:郭瑾珑  王毅力  李大鹏  汤鸿霄
作者单位:1. 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
2. 北京林业大学,资源与环境学院,北京,100083
3. 北京航空航天大学,环境工程学院,北京,100083
基金项目:国家自然科学基金 ( 5 0 1780 0 9),“九·五”攻关项目 (No .96 90 9 0 3 0 2 )
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,并对其运行情况进行了研究。探讨了其中的界面相互作用对气浮效果的影响,进一步与传统工艺进行了对比。

关 键 词:气浮  界面相互作用  气泡  颗粒物
文章编号:0253-2468(2003)02-0194-07
收稿时间:2002/11/25 0:00:00
修稿时间:2002年11月25

Interfacial interaction between the bubbles and particles in the flotation process
GUO Jinlong,WANG Yili,LI Dapeng and TANG Hongxiao.Interfacial interaction between the bubbles and particles in the flotation process[J].Acta Scientiae Circumstantiae,2003,23(2):194-200.
Authors:GUO Jinlong  WANG Yili  LI Dapeng and TANG Hongxiao
Institution:SKLEAC, Research Center for Eco-environmental Sciences, CAS, Beijing 100085,College of Natural Resource and Environment, Beijing Forest University, Beijing 100083,Department of Environmental Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083 and SKLEAC, Research Center for Eco-environmental Sciences, CAS, Beijing 100085
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.
Keywords:flotation  interfacial interaction  bubble  particle  
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