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Preparation of recoverable Ru catalysts for liquid-phase oxidation and hydrogenation reactions
(ELSEVIER SCIENCE BV, 2009)
We here report the synthesis, characterization and catalytic performance of new supported Ru(III) and Ru(0) catalysts. In contrast to most supported catalysts, these new developed catalysts for oxidation and hydrogenation ...
Aerobic oxidation of monoterpenic alcohols catalyzed by ruthenium hydroxide supported on silica-coated magnetic nanoparticles
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011)
Ruthenium hydroxide supported on silica-coated magnetic nanoparticles was shown to be an efficient heterogeneous catalyst for the liquid-phase oxidation of a wide range of alcohols using molecular oxygen as a sole oxidant ...
THE STABILITY OF FROZEN MINCED AFRICAN CATFISH
(CHIRIOTTI EDITORIPINEROLO, 2013-08-02)
The objective of the present study was to evaluate the stability (-18 degrees C) of minced African catfish (MF) for 180 days. Microbiological aspects, lipid oxidation, and total volatile nitrogenous bases (TVB-N) of the ...
Nutrients and Nonessential Elements in Soil after 11 Years of Wastewater Irrigation
(AMER SOC AGRONOMYMADISON, 2012)
Irrigation of citrus (Citrus aurantium L. x Citrus paradise Macf.) with urban reclaimed wastewater (RWW) can be economical and conserve fresh water. However, concerns remain regarding its deleterious effects on soil quality. ...
Sigatoka disease reduces the greenlife of bananas
(ELSEVIER SCI LTD, 2009)
Sigatoka disease (SD) of bananas is caused by the pathogenic fungus Mycosphaerella musicola Leach. This disease provokes necrotic lesions on leaves and serious infestations can lead to a substantial reduction in the leaf ...
Concretes and mortars recycled with water treatment sludge and construction and demolition rubble
(ELSEVIER SCI LTD, 2009)
There are about 7500 water treatment plants in Brazil. The wastes these plants generate in their decantation tanks and filters are discharged directly into the same brooks and rivers that supply water for treatment. Another ...
Characterization and application of the solid waste generated in the production of calcium carbonate precipitate as a corrective for the soil acidity
(ESCOLA DE MINAS, 2010)
The calcium carbonate industry generates solid waste products which, because of their high alkaline content (CaO, CaCO(3) and Ca (OH)(2)), have a substantial impact on the environment. The objectives of this study are to ...
Structural ceramics made with clay and steel dust pollutants
(ELSEVIER SCIENCE BV, 2011)
Electric arc furnace steel dust is a by-product of the steelmaking process and contains high amounts of the iron and zinc and significant amounts of lead, chromium, and cadmium. Metal recycling however, is not always ...
Jacobsen catalyst immobilized on chitosan membrane as interface catalyst in organic/aqueous system for alkene oxidation
(ELSEVIER SCIENCE BV, 2009)
The Jacobsen catalyst, Mn(salen), was immobilized in chitosan membrane. The obtained Mn(salen)-Chit was characterized by thermogravimetric analysis (TC), differential thermal analysis (DTA), differential scanning calorimetry ...
Effect of particle size on copper removal by layered double hydroxides
(Elsevier Science Sa, 2016-06-03)
Layered double hydroxides are increasingly studied as heavy metal scavengers but the effect of particle size in their removal behavior has not been explored yet. Here, these aspects were studied in three solids with similar ...