Study on Effectes of Different Inorganic Electrolytes on Flocculation Falling of Slurry

Deng Gao Ji; Xu Long Guo; Yang Hui Cai; Su Qin Peng; Jian Hua Lian

doi:10.4028/www.scientific.net/AMR.233-235.877

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 233-235Study on Effectes of Different Inorganic...

Study on Effectes of Different Inorganic Electrolytes on Flocculation Falling of Slurry

Abstract:

In order to strengthen the thin coal slime settlement, and improve the efficiency of solid-liquid separation, in this paper, as the research object of Wuyang coal slime, carried out the studies on the effect of flocculation and settling with different inorganic electrolytes, and using electrophoresis analyzer, image analyzer and FTIR, characterized inorganic electrolytes effect on zeta potential of coal particles, floc size and surface functional groups. The results showed that: the effect of flocculation and falling, with CaCl₂ and non-ionic PAM, is better than several other inorganic electrolytes. When the amount of non-ionic PAM is 3ml, CaCl₂ best dosage is 4ml, corresponding to the initial falling speed is 24.49cm/min, supernatant turbidity is 22NTU. It has certain effect to the zeta potential of coal particles, floc size and the functional groups of coal surface after adding inorganic electrolytes.

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Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

877-881

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.877

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Online since:

May 2011

Authors:

Deng Gao Ji, Xu Long Guo, Yang Hui Cai, Su Qin Peng, Jian Hua Lian

Keywords:

Falling Speed, Flocculation, Inorganic Electrolytes, Slurry, Turbidity

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