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2000•Journal of Harbin University of Civil Engineering and ArchitectureRequires access

Laboratory study on the removal of trace lead (Ph(II)) from water by potassium permanganate pretreatment

Ma Ju

Open publisher page 1 citations

Abstract

A static test was conducted to evaluate the effect of potassium permanganate pretreatment on the removal of trace lead (Pb(Ⅱ ) ) from the water. The removal of Pb(Ⅱ ) pretreated with permanganate tv'as due to the adsorption of Pb(Ⅱ ) by fresh hydrous manganese dioxide formed after the decomposition of potassium permanganate. It is found that pretreatment with potassium permanganate causes an excellent removal of Pb(Ⅱ ) at a relatively wide pH range, the removal of Pb(Ⅱ ) was higher than that treated with aluminium sulfate only. Obvious advantage of potassium permanganate pretreatment was observed as compared to aluminium sulfate coagulation in acid condition. For example, the removal efficiency of Pb(Ⅱ ) pretreated with potassium permanganate was 3 times higher than that treated with aluminium sulfate when pH = 4. 1. Hydrous manganese dioxide has more capability on the removal of Pb(Ⅱ ) than powdered manganese dioxide.

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What this paper is about

A static test was conducted to evaluate the effect of potassium permanganate pretreatment on the removal of trace lead (Pb(Ⅱ ) ) from the water. The removal of Pb(Ⅱ ) pretreated with permanganate tv'as due to the adsorption of Pb(Ⅱ ) by fresh hydrous manganese dioxide formed after the decomposition of potassium permanganate. It is found that pretreatment with potassium permanganate causes an excellent removal of Pb(Ⅱ ) at a relatively wide pH range, the removal of Pb(Ⅱ ) was higher than that treated with aluminium sulfate only. Obvious advantage of potassium permanganate pretreatment was observed as compared to aluminium sulfate coagulation in acid condition. For example, the removal efficiency of Pb(Ⅱ ) pretreated with potassium permanganate was 3 times higher than that treated with aluminium sulfate when pH = 4. 1. Hydrous manganese dioxide has more capability on the removal of Pb(Ⅱ ) than powdered manganese dioxide.

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Available abstract

A static test was conducted to evaluate the effect of potassium permanganate pretreatment on the removal of trace lead (Pb(Ⅱ ) ) from the water. The removal of Pb(Ⅱ ) pretreated with permanganate tv'as due to the adsorption of Pb(Ⅱ ) by fresh hydrous manganese dioxide formed after the decomposition of potassium permanganate. It is found that pretreatment with potassium permanganate causes an excellent removal of Pb(Ⅱ ) at a relatively wide pH range, the removal of Pb(Ⅱ ) was higher than that treated with aluminium sulfate only. Obvious advantage of potassium permanganate pretreatment was observed as compared to aluminium sulfate coagulation in acid condition. For example, the removal efficiency of Pb(Ⅱ ) pretreated with potassium permanganate was 3 times higher than that treated with aluminium sulfate when pH = 4. 1. Hydrous manganese dioxide has more capability on the removal of Pb(Ⅱ ) than powdered manganese dioxide.

Key concepts: Potassium permanganate, Chemistry, Manganese, Permanganate, Sulfate, Potassium, Inorganic chemistry, Adsorption

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