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Evaluation of the combined solar TiO2/photo-Fenton process using multivariate analysis
(2004-04-21)
The effect of combining the photocatalytic processes using TiO 2 and the photo-Fenton reaction with Fe3+ or ferrioxalate as a source of Fe2+ was investigated in the degradation of 4-chlorophenol (4CP) and dichloroacetic ...
Evaluation of the combined solar TiO2/photo-Fenton process using multivariate analysis
(2004-04-21)
The effect of combining the photocatalytic processes using TiO 2 and the photo-Fenton reaction with Fe3+ or ferrioxalate as a source of Fe2+ was investigated in the degradation of 4-chlorophenol (4CP) and dichloroacetic ...
Hydrogels based on modified chitosan, 1 - Synthesis and swelling behavior of poly(acrylic acid) grafted chitosan
(WILEY-V C H VERLAG GMBH, 2000-06-20)
A large number of carboxylic groups were introduced onto chitosan by grafting with poly(acrylic acid) as an efficient way of modification. The reactions were carried out in a homogeneous aqueous phase by using potassium ...
Modelling a copper electrowinning cell based on reactive electrodialysis
(2007)
This work reports the development of a mathematical model for the operation of a laboratory-scale copper electrowinning cell based on reactive electrodialysis (RED). Data were obtained from experiments and from the literature. ...
Modelling the effect of temperature and time on the performance of a copper electrowinning cell based on reactive electrodialysis
(PERGAMON-ELSEVIER SCIENCE LTD, 2008-02)
A temperature- and time-dependent mathematical model for the operation of a laboratory-scale copper electrowinning cell based on reactive electrodialysis (RED) has been developed. The model is zero-dimensional. The cathodic ...
Temperature dependence of the cathodic and anodic kinetics in a copper electrowinning cell based on reactive electrodialysis
(PERGAMON-ELSEVIER SCIENCE LTD, 2005-09)
The temperature dependence of various kinetic parameters for the copper electrodeposition reaction and for the ferrous to ferric ion oxidation has been experimentally determined. Potentiodynamic sweeps were carried out in ...
Effect of microwave treatment on metal-alginate beads
(Elsevier, 2014-03)
Encapsulation is defined as a technique to protect solid, liquid or gaseous active compounds from interacting with the environment. Encapsulated minerals may be incorporated into food products submitted to microwave heating, ...
Efeito do potencial de óxido-redução na biolixiviação da calcopirita
(Universidade Estadual Paulista (Unesp), 2014-02-19)
Natural sources of sulfide ores come depleting rapidly due to the demand for metal goods industries in production and consumption. Copper is a metal of greater economic interest. About 70% of this metal is found in nature ...