Avaliação do índice da qualidade da água distribuída (IQAD) no sistema isolado Ponta Negra em Natal/RN
In Brazil, basic sanitation is a right guaranteed by the Federal Constitution and defined by Law n°14.026/2020 where water supply is one of its pillars. In this bias, the present work has the premise of evaluating, in a simplified way, the water quality in the distribution net work in the Ponta...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/53599 |
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| Resumo: | In Brazil, basic sanitation is a right guaranteed by the Federal Constitution and defined by
Law n°14.026/2020 where water supply is one of its pillars. In this bias, the present work
has the premise of evaluating, in a simplified way, the water quality in the distribution net work in the Ponta Negra Supply System, located in the municipality of Natal/RN. The study
used the Basic Sanitation Municipal Plan (PMSB) as a basis, which proposes the use of the
Distributed Water Quality Index (IQAD) as a reference to classify the quality of distributed
water in the aforementioned Municipality. Faced with the problem related to the contamina tion of wells in Natal/RN, Nitrate levels were also analyzed in the SAA Ponta Negra. The
data used for the purpose of evaluating the non-compliant parameters were extracted from
the Quality System (CAERN), in this way, the IQAD's for the period 2018 - 2021 can be
obtained. The results for the analyzed points alternated between bad/regular. The parame ter that most interfered with the result of the index was analyzed and it was found to be the
pH. Considering the amendment to Annex XX of Consolidation Ordinance GM/MS No.
5/2017, through ORDINANCE GM/MS No. 888/2021, the pH no longer has a reference
value. With that, it was proposed to remove the pH in the calculation of the IQAD, redistrib uting the weights for the other parameters. Thus, the points studied presented a predomi nantly good/great water quality. The concentration of Nitrate, referring to the same period,
showed results predominantly within the limit of 10(mg/L). Thus, we can see that the pro posed IQAD demonstrated that water from Ponta Negra has good quality and that the pH
value, having negatively influenced the standard IQAD, is probably due to the fact that
groundwater has a slightly acidic pH. In addition, it was found that nitrate, a relevant param eter for the municipality of Natal, has an acceptable limit for this system. |
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