ALCÂNTARA, Fabrícia Torreão Araújo de.; SANTOS, Adriano Marques dos.; BRASILEIRO, Ilza Maria do Nascimento.; ALCÂNTARA, Hugo Morais de.
Resumen:
In the brazilian semi-arid zone, one of the challenges of the integrated management of water
resources is to offer quality for a specific use. The objective of this work was to evaluate the impacts
of diffuse pollution through análisis of raw water quality parameters, in a stretch of the Sucuru
alluvium, sub-basin of the Paraíba river, Sumé city, Paraíba State, Northeast of Brazil. The Sucuru
river alluvial aquifer has an area of 351ha and an estimated storage capacity of 1,700,000m³, receives
a high load of treated and untreated urban domestic sewage, domestic and agricultural from rural
areas. The evaluation of the effects of diffuse polution, in urban and rural areas, was carried out
through physical-chemical and microbiological analyses, monthly and bimonthly. Thermotolerant
coliforms and E. coli were identified in all Wells, in the dry and rainy seasons, which confirms the
fecal contamination of the aquifer. According to the reference values established by MS Ordinance
nº. 2914/2011, CONAMA Resolution nº. 396/2008 and Consolidation Ordinance nº. 5/2017, the
máximum permitted values (MPV) for most physical-chemical quality parameters were exceded,
except for pH, between 2015 and 2017, which implies restriction of water use for irrigation for most
agricultural crops. Controlled recharge management measures must be implemented, such as the
complete collection of sewage from the urban area of the Sumé city, its interconection to the treatment
plant, as well as the impelmentation of descentralized solutions sewage treatment in rural areas.
