The process of elaboration of ice cream is mainly a high energy consumer for refrigeration concepts and not to incur in unnecessary energy expenses is one of the guidelines of the world economy and of the country.The research was developed in the ice cream Coppelia factory, in Havana, Cuba.The energetic evaluation was made inthe process of removal of heatat each stage of the...
This work shows the conduct of the extractions of the nickel and cobalt during the process of lixiviation with sulphuric acid of a sample of residual material (tails) of the technology Carbonate Ammoniacal (Process Caron), to vary different factors or parameters of study that have influence significantly in the course of the time. The experiments were planed and executed through...
This work shows the results obtained from the leaching of nickel and cobalt with sulfuric acid in the mixture of ammonium carbonate queue process (Caron process) , and off-balance laterites (debris), consisting of 50% of each material. The tests were performed on laboratory scale using a thermostat (water bath) with automatic regulation of the temperature and mechanical stirring...
The application of the solid state fermentation for the biotransformation of lignocellulosic by-products and agro-industrial wastes with white-rot fungi is presentedin this paper. The cultivation of Pleurotus spp. mushroom on coffee pulp, by-product that causes soil and water contamination in view of its amount and difficult management is showed as an example of this technology...
The residues of the sugar industry have been used usually, natural or processed in the animal alimentation and have been developed a lot of investigations that are allowed obtain protein enrichment products by solid state fermentation (SSF). However, the technologies employed in the production have limitations that are restraining their commercialization. This investigation was...
The sweet cookies nutritionally are rich source of energy and they have great acceptance to world level and the sesame (Sésamum indicum) it is of the family of the oleaginous ones that possesses a high quantity of protein and fat where 80% belongs to the fatty polinsaturadas fundamentally linoleic acid, it has high content of calcium and the presence iron, magnesium and zinc...
The present work is focussed to design an Environmental Management System based on the norm NC-ISO 14 001:2004 in the electrochemical plant Elpidio Sosa of Sagua la Grande city, Villa Clara province. A strategy is developing for the evaluation of environmental management level from principles, objectives and goals for a sure primary management of mercury solid wastes (mercurial...
He occupies this work of the esteem of the flows of extracts that are generated in the process of obtaining of cane sugar, through the technical evaluation of fundamental teams of the process, that will permit in a posterior stage to evaluate the functioning of the system of treatment of residual liquids generated in the Central Sugar Little Reddish UEB's technological process...
Presently work historical aspects of the leaching process are exposed carbonate-ammonia for the treatment of the recovered of the nickel and cobalt of the reduced laterities ores, the historical antecedents are described from the technological point of view of the use of the solution ammonia for the technologies of recovery the Copper and Zinc, until the emergence of the...
The present bibliographic review to highlight the mains advantages of the use of the sorghum malt like basic raw material into of the sorghum beer brewing to tropicals countries producers of sorghum. The sorghum culture is economically profitability based their resistance at the drought and at the realization of the several harvests; consequently it is decrease significantly the...
From sampling taken between 2001 and 2011, was determinated the degree of eutrophication and water quality affectations in the bays Cárdenas, Santa Clara Oeste, Puerto de Sagua la Grande, San Juan de los Remedios, Buenavista, De Perros, Jigüey, La Gloria and Nuevitas, by means models that use the concentration of dissolved oxygen, biochemical and chemical oxygen demand, total...
The process of elaboration of ice cream is mainly a high energy consumer for refrigeration concepts and not to incur in unnecessary energy expenses is one of the guidelines of the world economy and of the country.The research was developed in the ice cream Coppelia factory, in Havana, Cuba.The energetic evaluation was made inthe process of removal of heatat each stage of the...
This work shows the conduct of the extractions of the nickel and cobalt during the process of lixiviation with sulphuric acid of a sample of residual material (tails) of the technology Carbonate Ammoniacal (Process Caron), to vary different factors or parameters of study that have influence significantly in the course of the time. The experiments were planed and executed through...
This work shows the results obtained from the leaching of nickel and cobalt with sulfuric acid in the mixture of ammonium carbonate queue process (Caron process) , and off-balance laterites (debris), consisting of 50% of each material. The tests were performed on laboratory scale using a thermostat (water bath) with automatic regulation of the temperature and mechanical stirring...
The application of the solid state fermentation for the biotransformation of lignocellulosic by-products and agro-industrial wastes with white-rot fungi is presentedin this paper. The cultivation of Pleurotus spp. mushroom on coffee pulp, by-product that causes soil and water contamination in view of its amount and difficult management is showed as an example of this technology...
The residues of the sugar industry have been used usually, natural or processed in the animal alimentation and have been developed a lot of investigations that are allowed obtain protein enrichment products by solid state fermentation (SSF). However, the technologies employed in the production have limitations that are restraining their commercialization. This investigation was...
The sweet cookies nutritionally are rich source of energy and they have great acceptance to world level and the sesame (Sésamum indicum) it is of the family of the oleaginous ones that possesses a high quantity of protein and fat where 80% belongs to the fatty polinsaturadas fundamentally linoleic acid, it has high content of calcium and the presence iron, magnesium and zinc...
The present work is focussed to design an Environmental Management System based on the norm NC-ISO 14 001:2004 in the electrochemical plant Elpidio Sosa of Sagua la Grande city, Villa Clara province. A strategy is developing for the evaluation of environmental management level from principles, objectives and goals for a sure primary management of mercury solid wastes (mercurial...
He occupies this work of the esteem of the flows of extracts that are generated in the process of obtaining of cane sugar, through the technical evaluation of fundamental teams of the process, that will permit in a posterior stage to evaluate the functioning of the system of treatment of residual liquids generated in the Central Sugar Little Reddish UEB's technological process...
The production of cellulolytic enzymes has taken a significant importance at the present time in the production of new products in the biopolymers industry, biofuels, nutritious and pharmacist. The main inconvenience for the use of the cellulosic biomass constitutes it the complex crystalline structure, resistant to the hydrolysis that form its main compounds, cellulose, besides...
In order to expand the knowledge on the use of hydrocyclones for the calcium carbonate slurry dressing, and feed the Neutralization plant from the acid pressure leaching process located in Moa, Cuba, a -0.84+0.15 mm sized slurry with less than 10 % (which is required for the metallurgical process), a pilot-scale test facility consisting of a hydrocyclone, a slurry storage tank...
A group of regularities of solar drying is given, as a part of an integral approach in solar direct dryers. These are visualized as Mean Efficiency- Specific cost Diagrams, with constructive elements and changes recommended to make this activity more effective integrally. Diagrams are applied to design of solar direct dryers with natural or forced convection of diverse...
The contamination for water of ballast brings it carries economic, social and ecological affectations that are sometimes of incalculable value. The pathogenic organisms have found themselves in water and sediments of the tanks of ballast, having significant economic and ecological impacts in the marine biodiversity of many regions of the world and important incidences in the...
The design of a mixture of agricultural residuals with certain composition or standardized in some of their components for the cultivation of eatable mushrooms it is a relatively complex activity. The complexity of the corresponding calculations would be given by the number of products and components that are included in the mixture, for to facilitate this activity this work had...
In this paper was confirmed for the experimental conditions of the QT test, that the redox potential of the pulp as a function of the C(Fe) in liquor, plotted by the Nernst equation, is divided into three well defined zones for different content of Fe2+ in MR. The first two zones are of most interest to regulate Qa in industrial practice by controlling the redox potential of the...