Avaliação biogeoquímica de águas fluviais com ênfase no comportamento dos compostos de nitrogênio e fósforo total para diagnoses provenientes do sistema aquático Bacia do Rio Doce, no Espírito Santo

Figueiredo, Juciene Andrade de; Noriega, Carlos Delgado; Oliveira, Elisa Milán Chaves de; Neto, Renato Rodrigues; Barroso, Gilberto Fonseca; Filho, M. A. Silva

doi:10.5327/z0102-9800201400020009

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…[18], which establishes the limits between 5 and 6 for pH. Figueiredo et al (2014) [19] in their research conducted in the Rio Doce basin, detected mean values of pH were 6.9, 6.6 and 7.2 in the observed years, respectively, which shows a medium close to neutrality. However, several biological and physico-chemical processes can influence the observed pH range.…”

Section: Physicochemical Characterization Of the Samplesmentioning

confidence: 95%

Study of the efficacy of the membranes produced on a laboratory scale for filtration: a proposal to improve the water quality of the hydrographic sub-basin of Ribeirão das Pedras, Diamantina, MG (Brazil)

Amaral¹,

Lima²,

Costa³

et al. 2019

IJAERS

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Population expansion and technological development ge nerate an increase in the use of natural resources, especially water resources, and, as a consequence, the amount of waste and chemical residues dumped into the effluents increases. With the end of the garimpo in the town of Diamantina, the spring that cut s through the city has notoriously had its flow reduced and its slopes visibly diminished and devastated by erosion, which reminds us of the need to install recovery and preservation programs. Among the pollutants, we can highlight the heavy metals, which cause great concern because of their toxicity. The present work sought to use the membrane filtration process. For this purpose, membranes were prepared using the chitosan biopolymer. The membranes were tested for the capacity to absorb metal ions. Water samples were collected from the hydrographic subbasin Ribeirão das Pedras, located in the city of Diamantina, MG, Brazil. The membranes were efficient, and the detection of possible improvements in the formulations, as well as sample collections, should be performed during other periods of the year.

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Section: Physicochemical Characterization Of the Samplesmentioning

confidence: 95%