Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Alexandro M.M. Vargas"'
Activated carbons from flamboyant pods: New types of adsorbents and application to laundry effluents
Publikováno v:
Journal of Water Process Engineering. 36:101277
In recent years, the perception that conventional treatment of waters and effluents produce secondary effluents containing various substances still considered toxic has increased the investigation for more efficient treatment methods. The adsorption
Autor:
Osvaldo Pezoti, Juliana C.G. Moraes, Stéfani P. de Azevedo, Lucas S. Souza, Vitor C. Almeida, Alexandre Tadeu Paulino, Alexandro M.M. Vargas, André L. Cazetta
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 110:455-462
The present study reports the application of response surface methodology (RSM) for optimization of the synthesis of activated carbon from bovine bone (ACBop). The influence of factors; pyrolysis temperature, pyrolysis time and N2 flow, were investig
Autor:
Tewodros Asefa, Xiaoxin Zou, André L. Cazetta, Vitor C. Almeida, Aline P. Silva, Alexandro M.M. Vargas, Osvaldo Pezoti Junior
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 101:53-60
Thermal regeneration of an activated carbon obtained from the coconut shell (AC) and saturated with methylene blue (MB) was studied using response surface methodology (RSM). Regeneration efficiency was optimized by MB adsorption capacity of regenerat
Publikováno v:
Chemical Engineering Journal. :173-179
Ternary adsorption of food dyes Acid Yellow 6 (AY-6), Acid Yellow 23 (AY-23), and Acid Red 18 (AR-18) onto activated carbon AC op produced from flamboyant pods ( Delonix regia ) was performed in this work. Derivative spectrophotometry was used for si
Autor:
Vitor C. Almeida, André L. Cazetta, Gisele F. Gauze, Willian Ferreira da Costa, Juliana C.G. Moraes, Alessandro C. Martins, Edivaldo E. Garcia, Alexandro M.M. Vargas
Publikováno v:
Chemical Engineering Journal. :243-250
The adsorption of food dyes, Acid Yellow 6 (AY-6), Acid Yellow 23 (AY-23), and Acid Red 18 (AR-18) onto activated carbon obtained from flamboyant pods (Delonix regia) under optimized conditions (ACop) was performed in this work. According to the pH s
Autor:
Vitor C. Almeida, Antonio Carlos Saraiva da Costa, Alexandro M.M. Vargas, Ervim Lenzi, Juliana C.G. Moraes, Lais Bukman, Fernando F. Sodré, Alessandro C. Martins
Publikováno v:
Chemical Speciation & Bioavailability. 24:97-104
A greenhouse experiment was conducted to evaluate phytotoxicity and distribution of Cu in a tropical soil amended with sewage sludge (Sw) and copper sulfate (CuSO4.5H2O). Samples of a clay soil from the State of Parana, Brazil were collected at depth
Autor:
Vitor C. Almeida, Eurica M. Nogami, Alessandro C. Martins, Juliana C.G. Moraes, Marcos H. Kunita, Taís L. Silva, Marcos R. Guilherme, André L. Cazetta, Alexandro M.M. Vargas
Publikováno v:
Chemical Engineering Journal. 174:117-125
Activated carbons (ACs) of coconut shell produced by NaOH activation at impregnation ratios of NaOH:char (w/w) equal to 1:1 (AC-1), 2:1 (AC-2) and 3:1 (AC-3) were prepared. The properties of these carbons, including BET surface area, pore volume, por
Publikováno v:
Chemical Engineering Journal. 168:722-730
The adsorption of methylene blue (MB) onto activated carbon produced from flamboyant pods ( Delonix regia ) and obtained under optimized conditions (AC op ) was carried out in this work. The experimental equilibrium data were analyzed using the isoth
Autor:
Juliana C.G. Moraes, Alexandro M.M. Vargas, Clarice A. Garcia, Vitor C. Almeida, Ervim Lenzi, Willian Ferreira da Costa, André L. Cazetta, Eurica M. Nogami
Publikováno v:
Journal of Environmental Management. 92:178-184
Activated carbons were prepared from flamboyant pods by NaOH activation at three different NaOH:char ratios: 1:1 (AC-1), 2:1 (AC-2), and 3:1 (AC-3). The properties of these carbons, including BET surface area, pore volume, pore size distribution, and
Autor:
Willian Ferreira da Costa, Clarice A. Garcia, Vitor C. Almeida, Ervim Lenzi, Edson M. Reis, Alexandro M.M. Vargas
Publikováno v:
Chemical Engineering Journal. 162:43-50
The conditions for the preparation of activated carbon from flamboyant pods treated with NaOH were optimized through response surface methodology (RSM) and central composite rotatable design (CCRD). The effects of the activation temperature, activati