In the present work, the drying rate of carbonate of nickel was studied experimentally at the laboratory scale. The values of critical moisture are shown and the graphics: characteristic curve of drying rate and the moisture dependence of the time. Models ware obtained to estimate the slope of the constant - rate period and to the falling - rate period until the equilibrium...
The work is done in Tiles Plant of Santa Cruz del Norte, to evaluate ways to reduce power consumption of the national network, which implies that the enterprises have to pay high values for this service. In it, an assessment of the technical and economic feasibility of using natural gas today consume the plant in the process of spray drying the barbotine to produce electricity...
Panela agroindustry plays an important role in the economic development of Ecuador. After the harvest of sugarcane, is holding a series of stages in the factory for sugarcane and other derivative products. In these stages of the most important to ensure the quality of the final product, in terms of texture, color, taste and other properties is the clarification . The cane juice...
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...
In the present work, the drying rate of carbonate of nickel was studied experimentally at the laboratory scale. The values of critical moisture are shown and the graphics: characteristic curve of drying rate and the moisture dependence of the time. Models ware obtained to estimate the slope of the constant - rate period and to the falling - rate period until the equilibrium...
The work is done in Tiles Plant of Santa Cruz del Norte, to evaluate ways to reduce power consumption of the national network, which implies that the enterprises have to pay high values for this service. In it, an assessment of the technical and economic feasibility of using natural gas today consume the plant in the process of spray drying the barbotine to produce electricity...
Panela agroindustry plays an important role in the economic development of Ecuador. After the harvest of sugarcane, is holding a series of stages in the factory for sugarcane and other derivative products. In these stages of the most important to ensure the quality of the final product, in terms of texture, color, taste and other properties is the clarification . The cane juice...
An integral evaluation of energy behavior in UEB Central Paquito Rosales of Santiago de Cuba province is presented, applying in detail the methodology based on performing mass and energy balances in all sections of the industry, from the mills to the cans, including the steam generators. To carry out these balance data must be known in most of the cases or if they are not...
This work had as objective to develop a milk ice cream with probiotic starter cultures with good viability and acceptability using the cultures Lactobacillus plantarum LB/103-1-5, Lactobacillus casei and Lactobacillus acidophilus like raw materials was used: powdered whole milk, sweetener, finigel paste and the referred starter cultures. The ice cream was elaborated by the...
The biosorption is considered an alternative technology for removal of heavy metals from wastewater and the use of seaweeds as adsorbents encourages scientific interest, considering the variety, abundance and availability of different species growing or arriving at the coastal shoreline. The aim of the research was to characterize a seaweed biosorbent prepared from marine algae...
The present work describes the operations carried out in order to dedicate the automatic aseptic processing system Steridose, installed in the Parenteral Products Plant 2 at the National Bioproducts center, to formulate the polyvalent Heberpenta-L vaccine. This project objective is to increase the production capacity as a result of the rising demand of such product. Steridose is...
In this work present the results obtained in a study of sensibility, by using a mathematical model developed for the simulation of the conduct of an endless reactor with agitation, by using as data source of information of reasonable operation of the industrial plant. The study permits value the effect that the changes in the variables of operation can occasion in the results of...
In plant of synthesis of a nitro aromatic compound highly dangerous are obtained waste waters that contain fundamentally nitric acid. In this work is carried out the project of an efficient installation to treat this water, as much from the point of view of the personal security of the workers like of the no contamination of environment. In the work is performed a technical...
The energetic efficiency can get for oneself intervening the application of Energetic Management System (SGEn), than just like another normalized systems of management, he establishes a group of requirements to implement, to maintain and to improve continuously, with the younger investment of resources, in the younger time and the bigger efficacy. The International Organization...
"Francisco Morazán" Power Station, since it started to work, had not been object of a general inspection into the internal side of pipelines system. Metallic parts of the installation, exposed to the atmosphere, have corrosion process evidences. A study of general corrosion problems is carried out to propose adequate solutions. During a general parade of the power station...
An integral evaluation of energy behavior in UEB Central Paquito Rosales of Santiago de Cuba province is presented, applying in detail the methodology based on performing mass and energy balances in all sections of the industry, from the mills to the cans, including the steam generators. To carry out these balance data must be known in most of the cases or if they are not...
This work had as objective to develop a milk ice cream with probiotic starter cultures with good viability and acceptability using the cultures Lactobacillus plantarum LB/103-1-5, Lactobacillus casei and Lactobacillus acidophilus like raw materials was used: powdered whole milk, sweetener, finigel paste and the referred starter cultures. The ice cream was elaborated by the...
The biosorption is considered an alternative technology for removal of heavy metals from wastewater and the use of seaweeds as adsorbents encourages scientific interest, considering the variety, abundance and availability of different species growing or arriving at the coastal shoreline. The aim of the research was to characterize a seaweed biosorbent prepared from marine algae...
In this work present the results obtained in a study of sensibility, by using a mathematical model developed for the simulation of the conduct of an endless reactor with agitation, by using as data source of information of reasonable operation of the industrial plant. The study permits value the effect that the changes in the variables of operation can occasion in the results of...