Ana Hernándes,Vanina Martínes,Mariano Stratico,Nancy Dolores Ortiz, Instituto Nacional de Tecnologia Industrial, Centro de Química, nortiz@inti.gob.ar
Summary:
The prescence of contaminants in waters for human consumption, such as arsenic, fluoride and salts, affects a wide region of Argentina. In Argentina, the Argentine Food Code (CAA) modified the permitted maximum concentration values for drinking water. The INTI developed an intervention model for the abatement of arsenic in consumption waters led to rural and urban areas. For the case of rural zones it has been developed a domiciliary device based on coagulation / filtration, which doesn´t needs use electric energy. The effectiveness of the device is evaluated by analytical tests, measuring arsenic by two different technics (Atomic Absortion espectromethry and DDTC-Ag), fluoride by a colorimetric method (Spands-Zirconilo) and salts by ionic chromatography. In field studies, from the obtained results, it is found that the treated water by the residents operated devices, meet the concentration levels of arsenic and fluor allowed for human consumption.
Keywords: elimination, contaminants, waters