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Estudio de caso de la eficiencia del filtro de carbón activado granular para la...
Franco, Elton Santos; Camargo, Júlia Araújo; Hirle, Nathalia Pereira; Marques, Izabel CristinaThis study aimed to evaluate the efficiency of activated carbon for removing haloacetic acids in synthetic water in order to simulate its formation in supply system. From a validated method by liquid-liquid extraction associated with gas chromatography coupled with mass spectrometry (LLE-GC-MS), synthetic solutions were prepared in concentrations 58 and 116 μg.L-1, being the first below and the second above the...
Sludge Theoretical Production Using Aluminum Sulfate Coagulant in the Funil Wat...
Franco, Elton Santos; Marques, Izabel Cristina; Camargo, Júlia Araújo; Almeida, Rafael Alvarenga; Pinto, Daniel Brasil Ferreira; Ferreira, Adriana AlvesThe objective of this study was to estimate sludge production in the decanters at the Funil Water Treatment Station, located in Ouro Preto, Brazil, in order to provide subsidies to comply with current legislation regarding the design of Waste Treatment Units. To estimate sludge production - in the form of total solids and volatile solids - empirical equations found in the literature were applied, using, as inpu...
Evaluation of chlorine demand for Cylindrospermopsis raciborskii cyanobacterium...
Camargo, Júlia Araújo; Cordeiro, Daniela Rocha; Pontes, André de Araújo; Filgueiras, Letícia Silva; Farias, João Victor Ferreira deThis study aimed to quantify the amount of free residual chlorine present in the samples and to evaluate which doses comply with the Consolidation Ordinance. To carry out the study, we used cyanobacterium Cylindrospermopsis raciborskii, recurrent in flowering in Brazilian springs. Chlorine gas was the oxidation selected due to its low-cost and easy handling. Analyses were performed at 1,0 x 104 and 1,0 x 106 ce...
Analysis of the chlorine consumption for oxidation of the cyanobacteria species...
Camargo, Júlia Araújo; Franco, Elton Santos; Marques, Izabel Cristina; Júnior, Israel César Santana; Silva, Paulo Henrique GomesThis study evaluated the chlorine consumption of the Microcystis aeruginosa species present in blooms in water supply sources, since the legislation requires the minimum maintenance of free residual chlorine should be 0.2 mg.L-1 or 2 mg.L-1 of combined residual chlorine and a residue from 3 to 5 mg.L-1 after 7 days. Chlorine gas analyzes were performed in laboratory scale: 8 dosages for 30 minutes and 24 hours ...
Colonizer vegetation structure in gravel mining degraded environment in Diamant...
Pereira, Israel Marinho; Gonzaga, Anne Priscila Dias; Machado, Evandro Luiz Mendonça; Oliveira, Marcio Leles Romarco; Marques, Izabel CristinaThis work aimed at identifying and quantifying colonizer species and structure in gravel mining degraded environment and to identify species for restoration. It was selected three sites characterized as: site 1 (S1), place with less intense history of use; site 2 (S2), intermediary level of degradation; and site 3 (S3), with higher degradation. Within the three sites it was withdrawn 20 plots of 25 m². Within e...
Uso de composto org?nico e esp?cies do cerrado na revegeta??o de ?rea remanesce...
Marques, Izabel CristinaSubmitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-23T14:01:54Z No. of bitstreams: 5 2.pdf: 1355294 bytes, checksum: 9086c9df4915c340a9a61b61dd236b86 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109...