Water and water purification technologies

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CALCULATION OF Mn2+ IONS REMOVAL WITH SORBENT-CATALYST USING

 

N.N. Chernova, A.V. Mamchenko

Dumansky Institute of Colloid and Water Chemistry of the NAS ofUkraine,Kiev,Ukraine

e-mail: notochka@ukr.net

New sorbent-catalyst using in water treatment technology from manganese compounds allows get qualitative water that satisfies present quality requirements. Salt content of doubly charged ions such as calcium, magnesium and sulphates on sorbent-catalyst efficiency in article was explored. It was established that singly ions of sodium chlorides and doubly charged hardness ions influence on residual concentration of manganese compounds in liquid phase. It was found that influence of doubly charged ions on water purification form manganese compounds with sorbent-catalyst using was substantial. Calcium and potassium carbonates leaching from sorbent-catalyst was confirmed. The solution pH value increased to optimal for manganese compounds removal range within sorbent-catalyst contact time. Experimental data with fitted coefficients were described by proposed theoretical model. The theoretical model makes it possible to calculate pH value, solution air oxygen saturation and salt content influence on water treatment from manganese compounds with sorbent-catalyst using.

Key words: sorbent-catalyst, salt content, doubly charged ions, hardness ions, ionic strength, theoretical model.

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19.07.2013 at 2:31 pm

ROLE OF pH AND SALT CONTENT OF WATER ON IT TREATMENT FROM MANGANESE COMPOUNDS ON SORBENT-CATALYST

A.V. Mamchenko, N.N. Chernova

Institute of Colloid and Water Chemistry of A.V. Dumansky of NAS of Ukraine, Kiev, Ukraine

e-mail: notochka@ukr.net

The method of natural water treatment from manganese compounds on synthesized from manganese ore sorbent-catalyst was proposed. Salt content of sodium chlorides on efficiency of sorbent-catalyst in static conditions was explored. Salt content and pH value solution influence on residual concentration of manganese compounds in treated water was determined. The equation which describes the influence of those factors was obtained. The water treatment with high salt content ought to carry out with high pH value available to potable water.

Key words: sorbent-catalyst, salt content, sodium chloride, pH value, ionic strength, oxygen.

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20.11.2012 at 1:41 pm