Franciele Pereira Camacho
Universidade Estadual de Maringá
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Featured researches published by Franciele Pereira Camacho.
Environmental Technology | 2014
Milene Carvalho Bongiovani; Franciele Pereira Camacho; Letícia Nishi; Priscila Ferri Coldebella; Karina Cardoso Valverde; Angélica Marquetotti Salcedo Vieira; Rosângela Bergamasco
The objective of this study is to investigate the impacts of anionic polymer as a flocculant aid on the coagulation/flocculation performance with a saline solution of Moringa oleifera as a coagulant to provide larger flocs and decrease the time sedimentation. For the tests, raw water was used from Pirapó River Basin (Maringá, Paraná, Brazil). Optimization of coagulation/flocculation tests was initially performed in a jar-test with a dosage of M. oleifera Lam (crude extract – MO, oil-extracted with ethanol – MO (et) and hexane – MO (hex) 1% m/v) as the coagulant that ranged from 10 to 60 mg L−1 and of the anionic polymer 0.1% as a flocculant aid with a dosage that ranged from 0 to 0.4 mg L−1. The parameters analysed were colour, turbidity and compounds with absorption in UV254nm. In view of the statistical analysis results, MO (hex) with a dosage of 30 mg L−1 was chosen as a coagulant for the next tests of coagulation/flocculation. When anionic polymer was used alone (0.0 mg L−1 of MO (hex)), parameters were not removed and there was no generation of heavy flocs as compared with the combination of MO (hex) with the anionic polymer. Statistical analysis showed that MO (hex) obtained the highest removals of the parameters analysed in lower dosages and no significant increase in parameters removal was observed when the polymer dosage was increased. The efficacy of the coagulant+anionic polymer was optimal when 30 mg L−1 of MO (hex) was used as a coagulant and 0.1 mg L−1 of the anionic polymer was used as a flocculant aid, decreasing the time sedimentation from 1 h to 15 min.
Environmental Technology | 2016
Livia oliveira ruiz Moreti; Priscila Ferri Coldebella; Franciele Pereira Camacho; Milene Carvalho Bongiovani; Aloisio Henrique Pereira de Souza; Aline Kirie Gohara; Makoto Matsushita; Marcela Fernandes Silva; Letícia Nishi; Rosângela Bergamasco
ABSTRACT This study aimed to evaluate the efficiency of the coagulation/flocculation/dissolved air flotation (C/F/DAF) process using the coagulant Moringa oleifera (MO) seed powder, and to analyse the profile of fatty acids present in the generated sludge after treatment. For the tests, deionized water artificially contaminated with cell cultures of Anabaena flos-aquae was used, with a cell density in the order of 104 cells mL–1. C/F/DAF tests were conducted using ‘Flotest’ equipment. For fatty acid profile analyses, a gas chromatograph equipped with a flame ionization detector was used. It was seen that the optimal dosage (100 mg L–1) of MO used in the C/F/DAF process was efficient at removing nearly all A. flos-aquae cells (96.4%). The sludge obtained after treatment contained oleic acid (61.7%) and palmitic acid (10.8%). Thus, a water treatment process using C/F/DAF linked to integral MO powder seed was found to be efficient in removing cells of cyanobacteria, and produced a sludge rich in oleic acid that is a precursor favourable for obtaining quality biodiesel, thus becoming an alternative application for the recycling of such biomass.
Chemical engineering transactions | 2015
Franciele Pereira Camacho; Milene Carvalho Bongiovani; Mariana Oliveira Silva; Priscila Ferri Coldebella; M. T. Pessoa de Amorim; Rosângela Bergamasco
This study investigated the efficiency of Moringa oleifera (MO) seeds as natural coagulant in coagulation/flocculation/dissolved air flotation (C/F/DAF), followed by nanofiltration (NF) for Microcystis protocystis and microcystin-LR removal. The methodology adopted in this work was performed in two steps: 1) coagulation/flocculation/dissolved air flotation (C/F/DAF) process using the MO extracted in saline solution of potassium chloride (KCl-1M) and sodium chloride (NaCl-1M) in optimum dosage 50 mg·L -1 ; 2) nanofiltration process using NF90 and NF270 membrane provided Dow Chemical Company®. A working pressure of 8 bar was applied. In all samples were analyzed color, turbidity, pH, cyanobacterial cells count and microcystin concentration. The use of MO seeds as natural coagulant, obtained satisfactory results in the M. protocystis, color and turbidity removal. NF was able to completely remove cyanobacterial cells and microcystins (100 %) from M. protocystis (always under the quantification limit). Therefore, C/F/DAF+NF sequence is a safe barrier against M. protocystis and microcystins in drinking water.
International Review of Hydrobiology | 2009
Márcio José Silveira; Sidinei Magela Thomaz; Roger Paulo Mormul; Franciele Pereira Camacho
Chemical Engineering Journal | 2017
Franciele Pereira Camacho; Vânia Serrão Sousa; Rosângela Bergamasco; Margarida Ribau Teixeira
Desalination and Water Treatment | 2016
Milene Carvalho Bongiovani; Franciele Pereira Camacho; Priscila Ferri Coldebella; Karina Cardoso Valverde; Letícia Nishi; Rosângela Bergamasco
Journal of Cleaner Production | 2017
Margarida Ribau Teixeira; Franciele Pereira Camacho; Vânia Serrão Sousa; Rosângela Bergamasco
Chemical engineering transactions | 2013
Cal E; Ng Tran; Franciele Pereira Camacho; Milene Carvalho Bongiovani; Flávia Sayuri Arakawa; Angélica Marquetotti Salcedo Vieira; Rosangela Bergamasco
Acta Scientiarum-technology | 2013
Karina Cardoso Valverde; Leila Cristina Konradt Moraes; Milene Carvalho Bongiovani; Franciele Pereira Camacho; Rosângela Bergamasco
Canadian Journal of Chemical Engineering | 2016
Mariana Oliveira Silva; Franciele Pereira Camacho; Leandro Ferreira-Pinto; Willyan Machado Giufrida; Angélica Marquetotti Salcedo Vieira; Jesuí Vergílio Visentaine; Diógenes R. L. Vedoy; Lúcio Cardozo-Filho