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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 6    No. 4    December 1996

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CHARACTERS OF SEDIMENTATION OF SUSPENSION FLOCCULATED OR COAGULATED
Kang Yong, Hu Xiaomin, Deng Changlie, Luo Qian

Department of Mineral Engineering,Northeastern University, Shenyang110006

Abstract:The properties of flocs were analysed by microphotography and auto image analysis technique, and the sedimentation of flocculated or coagulated suspension and water osmosis in sediment were studied. It was found that, the flocs size is related to the average diameter of fine solid particles, the locus of the compressive points of the sedimentation curves of flocculated suspensions is a straight line approximately, the water permeating of sediment is unsteady and water osmosis rate reduces with extension of sedimentation time, the sediment resistance to fluid flow is the main factor that affects the average sedimental concentration.

 

Key words: flocculation coagulation floc sedimentation of suspension

ISSN 1672-7029
CN 43-1423/U

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