Avaliação físico-química da água de um poço subterrâneo e comparação de alguns parâmetros com a água de abastecimento do município de Nova Floresta - PB.

Abstract

Water isan essential componentfor human survival. Furthermore, it is known thatthe majority of diseasesthat spreadin developing countriescomes from thepoor qualityof water. Thus it isnecessary to know thephysical and chemical characteristicsof the waterfor human consumption. Thewaterconsideredpotablemust be within thepotability standardsestablished bydecree No.2914/2011of the Ministryof Health.Thisstudy aimed toevaluate thephysico-chemical parametersof water from asubterranean wellthe city ofNewForest-PB, locatedin the CurimatautheWest. Water sampleswere analyzedat fourdifferent points: a sampleinan underground welland the otherthree samples ofsupply waterin homesin the city, allanalyzeswereperformed in triplicate. The results showedan averagepH=5.82for samples ofwater froman underground wellandtheturbidityof 1.27NTU. Hardness resultsshowed thatthe watercollected from homesare classed asvery hard water, because thevalues ranged from273.2 to 290.3mg.L- 1of CaCO3. Alkalinity andconductivityare within theestablished standards,buthigh levels ofchloride276.9mg/LCl-. Thereforewe observedsignificant differencesbetween thephysicochemical propertiesof theunderground wellandsamples of water supply.