Análise da eficiência de um abrandador de partículas na escola José Ernesto Annoni

Abstract

High hardness levels are characteristic of groundwater and rocks of limestone formation , as in the town of Cerrito , rural area where the school is located. The water used in the School José Ernesto Annoni is coming from a tube well , so the need for treatment was needed from the identification of a high hardness levels in the water consumed by the community. Despite not being the non-standard established by Decree No. 2,914 / 11 of the Ministry of Health , the water would eventually cause fouling in equipment, creating problems of economic order. The Water Supply System in school today goes through a device called softener particles, which performs a process of cation exchange and reduces water hardness. However this process results in a water rich in sodium ( Na) , the choice of technologies that provide quality of life and wellness community should be based on a set of economic , social and environmental guidelines. Thus the monitoring of treated water quality is necessary for these directives are complied with especially as relates to the salt contents and its excess consumption that can eventually lead to serious heart and kidney problems. The work aims to identify the levels of sodium , calcium and magnesium in the water consumed in the School José Ernesto Annoni , located within the municipality of São Gabriel , relating the data obtained with the standards of water potability for human consumption Ministry of Health Ordinance No. 2,914 / 11 , in relation to the sodium content .