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Study on preparation and properties of coagulant polymeric ferric silicate-sulfate containing boron

Xiao Ma, Tian Yiling

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Abstract

Coagulant PFSSB (polymeric ferric silicate sulfate containing boron) is prepared using water glass, ferric sulfate and borax as raw materials. Optimal preparation conditions are as follows: Fe/Si molar ratio 0 5,B/Si molar ration 0.155, activation pH value 2.0 and activation time 1 h. PFSSB has a banded structure featuringexcellent properties of stability and coagulation. It can be kept stable for 66～127 days. Waste water from wastepaper based paper making and waste water from dyeing can be treated by PFSSB to meet the national first grade emission standard (GB8978—1996).

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Coagulant PFSSB (polymeric ferric silicate sulfate containing boron) is prepared using water glass, ferric sulfate and borax as raw materials. Optimal preparation conditions are as follows: Fe/Si molar ratio 0 5,B/Si molar ration 0.155, activation pH value 2.0 and activation time 1 h. PFSSB has a banded structure featuringexcellent properties of stability and coagulation. It can be kept stable for 66～127 days. Waste water from wastepaper based paper making and waste water from dyeing can be treated by PFSSB to meet the national first grade emission standard (GB8978—1996).

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Available abstract

Coagulant PFSSB (polymeric ferric silicate sulfate containing boron) is prepared using water glass, ferric sulfate and borax as raw materials. Optimal preparation conditions are as follows: Fe/Si molar ratio 0 5,B/Si molar ration 0.155, activation pH value 2.0 and activation time 1 h. PFSSB has a banded structure featuringexcellent properties of stability and coagulation. It can be kept stable for 66～127 days. Waste water from wastepaper based paper making and waste water from dyeing can be treated by PFSSB to meet the national first grade emission standard (GB8978—1996).

Key concepts: Ferric, Borax, Sulfate, Silicate, Boron, Chemistry, Coagulation, Molar ratio

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