Preparation and Character of Inorganic Polymeric Coagulates from Fly Ash by Activation Method

Chun Hua Yuan

doi:10.4028/www.scientific.net/AMM.401-403.679

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Preparation and Character of Inorganic Polymeric...

Preparation and Character of Inorganic Polymeric Coagulates from Fly Ash by Activation Method

Abstract:

Using the main raw material of fly ash, metal scrap and waste industrial acid, with the activating method of specific self-activator ,can prepare poly-ferric-aluminum-silicate(PFAS) flocculant of inorganic polymeric coagulates. Specific activator can effectively open the Si-Al bond in the fly-ash, greatly enhance the leaching rate of each element by adding a special activator (M), the added amount of M: SiO2 = 1:3, activation time of 1 hour, activation temperature to 900 °C, get the original product, on 65 °C with turbid acid to stir and leach, leaching time is 2 hours, get the best rate of leaching. By Controlling Molar ratio of (Al + Fe) and Si 1:1, Silicic acid polymerization pH 1.7, by choosing the appropriate amounts of flocculants and flocculation time ,can get the very good flocculation function, the light transmission rate of the handling-water may amount to more than 92.7%.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

Pages:

679-682

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.679

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Online since:

September 2013

Authors:

Chun Hua Yuan

Keywords:

Activating Method, Coal Fly Ash, Flocculating Character, Poly Aluminum Ferric Silicate

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