Influência da presença de ferro na cor e turbidez e implicações na água de poço para abastecimento público

Abstract

Although water is renewable, it is a limited natural resource. The distribution of water in the country is not uniform, varying according to the region. The state of Ceará suffers from water scarcity due to irregular rainfall, an alternative found for this problem, are the wells. However, it is necessary to monitor the quality of these waters through physical-chemical analyzes to find out if they are in accordance with portability standards. One of the parameters evaluated is the iron content. If a water has a high iron content it will show a change in color and odor, it will also cause stains on household items and clothes. In this context, the present study aims to verify the effects of the presence of iron on the results of color, turbidity and pH in the waters of wells in three different municipalities in the state of Ceará. The parameters analyzed were pH, color, turbidity and iron and were carried out in the laboratory of the Industrial Technology Center of Ceará (NUTEC). The results obtained show that samples from municipality B presented iron levels below the quantification limit. While municipalities A and C presented samples above the limit of quantification, but within the permitted values. The sample C5 from municipality C showed a pH value below the established range. As for the color and turbidity parameters, all samples showed low levels.