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The Differences of Behaviour and Coagulating Mechanism Between Inorganic Polymer Flocculants and Traditional Coagulants

  • Conference paper
Chemical Water and Wastewater Treatment IV

Abstract

The outstanding behaviours of inorganic polymer flocculants polyaluminum superior to the traditional coagulants aluminum salts were experimentally examined by the potentiometry, 27Al NMR, timed ferron complexation spectrophotometry, laser scattering PCS, streaming current detector, zeta potential meter and flocculation detector determination and jar test.

Al13 species can be made up only when the Al solution is undertaken a base addition with the production of Al(OH) -4 as precursors. Their superior properties in the coagulation-flocculation processes should be attributed also to the character of temporary refractory of hydrolysis. A scheme of transformation pathway for Al species in solution was suggested.

Their mechanism and quantitative model in coagulation-flocculation processes may be proposed to set up on the basis of the surface complexation-precipitation modeling.

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Authors and Affiliations

  1. State Key Laboratory of Environmental Chemistry (SKLEAC) Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085, China P.R.

    Prof. Hongxiao Tang & Assoc. Prof. Zhaokun Luan

Authors
  1. Prof. Hongxiao Tang
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  2. Assoc. Prof. Zhaokun Luan
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Editors and Affiliations

  1. Institut für Siedlungswasserwirtschaft, Universität Karlsruhe, Am Fasanengarten, D-76128, Karlsruhe, Germany

    Hermann H. Hahn Ph. D.  & Erhard Hoffmann  & 

  2. Dept. of Hydraulic and Environmental Engineering, Norwegian University of Science and Technology, NTNU, S.P. Andersens vei 5, N-7034, Trondheim, Norway

    Hallvard Ødegaard (Faculty of Civil Engineering) (Faculty of Civil Engineering)

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© 1996 Springer-Verlag Berlin Heidelberg

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Tang, H., Luan, Z. (1996). The Differences of Behaviour and Coagulating Mechanism Between Inorganic Polymer Flocculants and Traditional Coagulants. In: Hahn, H.H., Hoffmann, E., Ødegaard, H. (eds) Chemical Water and Wastewater Treatment IV. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-61196-4_8

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  • DOI: https://doi.org/10.1007/978-3-642-61196-4_8

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-64743-7

  • Online ISBN: 978-3-642-61196-4

  • eBook Packages: Springer Book Archive

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