Estudo comparativo da eficiência no tratamento das águas adicionadas de sais no Alto Sertão da Paraíba.

Abstract

Lately, due to the low availability and quality of fresh water for society, bottled water has become a viable alternative for those looking for a safe and quality product, with an increase in world consumption. One of the types of bottled water that stand out for this purpose is Water Added with Salts (AAS). The present study aimed to carry out a comparison of different ASA samples, before and after treatment, verifying if the samples are in accordance with the drinking water standards for human consumption within the physicochemical and microbiological aspects. The research was conducted through document analysis of reports provided by three different AAS companies located in Alto Sertão da Paraíba. In the reports, data on Chlorides, Electrical Conductivity, Total Hardness, Ammoniacal Nitrogen, Nitrates, Nitrites, pH, STD, Turbidity, Total Coliforms and Escherichia coli were observed, in addition to the contents of Calcium, Magnesium, Potassium, Sodium and Added Salt, and compared based on Ministry of Health Ordinance No. 888, of May 4, 2021, and Collegiate Board Resolution (RDC) No. 274, of September 22, 2005. Satisfactory results were observed, showing an effective improvement in its composition, mainly regarding the reduction of the salt content, in addition to preserving its microbiological quality. Therefore, the consumption of water added with salts can be considered a viable alternative for those looking for safe, quality water at a lower price than mineral water.