Extração de cátions das águas do açude Boqueirão Cais nas cidades de Cuité – PB e Nova Floresta – PB utilizando microemulsões .

Abstract

The counties of New Forest cuite and are inserted into the drive geoenvironmental Plateau Borborema. The main body of the dam is accumulation Boqueirao Pier which supplies both cities. The quality of water for human consumption should be considered as an essential factor in the development of actions Services Water Supply, whether public or private so that the water delivered to the user has all the characteristics determined by existing laws (Decree 518 / 04 of MS). The objective of this work is to characterize the presence of cations, in these waters, with physical and chemical analyzes to identify and volumetric values of pH, conductivity, turbidity, hardness and apply micoremulsoes for extraction of cations. For this study, water samples were collected in polyethylene bottles in triplicate nine points. Being three points weir (AAi, AAn and AAm) three in the city of New Forest (ANi ANn and ANm) and three city cuite (ACi, ACn and ACm). A microemulsion is an effective alternative for the extraction of metals, microemulsion systems used as the extractants cations. Sistetizado as surfactant were saponified coconut oil (OCS) used as isopropyl alcohol as a cosurfactant and kerosene phase oil (FO) in a ratio C / T equal to 4. Pseudoternarios two diagrams representing microemulsionas systems were established in order to delimit the regions of existence of systems Winsor in water before and after treatment. The region Winsor I I is quite effective due to the increased interfacial area, which facilitates the transport of ions from the aqueous phase to the organic phase. Identified in the extraction FA volumetry complexation. The organic phase reextraimos with the cations with sulfuric acid to reusing the organic phase into another extraction. The physico-chemical (pH, conductivity and turbidity) were within the potability standards established by legislation with some points that deserve our attention, the volumetric analysis of complexation had very high rates of hardness exceeding 500 mg L"1 in terms of CaCC»3 . The extraction was effective reaching 93.1% of cations extracted due to the presence of acid in stripping the reuse of the microemulsion may be favorable, even if the percentage being in the range of 46.5% to 50.2%.