Influência da qualidade da água na sedimentação caulim do Equador/RN

Abstract

The water quality is very important to mining flotation. Chemical species dissolved in water compete with ion collector to particle surface. This competition can bring results that undertake in negative way to flotation efficiency. This paper aims to study the water quality to kaolin flotation in Equador county, at Rio Grande do Norte. Initially was realized physico-chemical analysis in water and after treatment by dissolved air flotation to remove contaminants. Flotation tests was realized at dissolved air flotation to aim the best removal contaminants. The results of water analysis showed high levels of dissolved salts, 5210µS/cm of electrical conductivity and 955,50 mg/L CaCO3 total hardness; 127, 3 mg/L Ca+2 calcium hardness and 155,08 mg/L Mg+2 magnesium hardness. The pH measurement was 7,53. Sodiun found by technical by flame fhotometry was 528 mg/L Na+

The water quality is very important to mining flotation. Chemical species dissolved in water compete with ion collector to particle surface. This competition can bring results that undertake in negative way to flotation efficiency. This paper aims to study the water quality to kaolin flotation in Equador county, at Rio Grande do Norte. Initially was realized physico-chemical analysis in water and after treatment by dissolved air flotation to remove contaminants. Flotation tests was realized at dissolved air flotation to aim the best removal contaminants. The results of water analysis showed high levels of dissolved salts, 5210µS/cm of electrical conductivity and 955,50 mg/L CaCO3 total hardness; 127, 3 mg/L Ca+2 calcium hardness and 155,08 mg/L Mg+2 magnesium hardness. The pH measurement was 7,53. Sodiun found by technical by flame fhotometry was 528 mg/L Na+.