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Introduction: In the pedagogical treatment of interdisciplinarity in Cuba, important actions are carried out as part of the continuous transformation process of the educational system. In the present investigation, the knowledge systems of the subjects with the greatest contribution to process safety are identified. Objective: To analyze the interdisciplinary methodological activity in the Chemical Engineering career in terms of process safety for its articulation with national security and defense. Materials and Methods: The analysis is carried out based on Study Plan E, Preparation for Defense discipline program, disciplines programs of the Chemical Engineering career and documents issued by the Ministries of Higher Education and the Revolutionary Armed Forces. A case study is presented. Results and Discussion: Hazards identification, vulnerability and disaster risks; potential damage and actions to eliminate and/or reduce the effects of events are essential components for identifying knowledge systems related to process safety and links to national security and defense. Conclusions: Methodological activity has led to define that the disciplines Process Engineering, Chemical and Biological Fundamentals, Fundamentals of Automation and Unit Operations and Processes are made up of subjects that articulate process safety with the subject of security and national defense of the discipline Preparation for Defense. The procedure and the general systematic approach for safe design contribute to consolidate the interdisciplinary link in the Plant Design subject. [ABSTRACT FROM AUTHOR]

Introduction: Several factors are identified in the raw sugar mill that increase energy consumption and introduce technical, economic and environmental risks Objective: To evaluate the energy system through the application of energy management systems. Materials and Methods: The energy review included the application of traditional methodologies for the thermoenergetic balance and the use of Sistema Termo Azúcar 4.1 software according to the Cuban Standard ISO 50001. Results and Discussion: An energy baseline is established, which allows the industry in a comparative way assess energy performance of the process. Conclusions: The use of STA 4.1 software in the studied industry constituted a useful, practical and reliable tool for analyzing the energy system. High level of technology obsolescence and poor condition of thermal insulation constitute the main technology deficiencies of industry. The economic benefits obtained with the modification of generation and cogeneration system and thermal insulation rehabilitation justify the proposal of three investment projects that contribute to increase the efficiency in energy use, whose recover investment is estimated in 3 years. [ABSTRACT FROM AUTHOR]

An energy study was performed at Pulpa Cuba Paper Mill, located in Sancti Spiritus, where an energy management system was applied according to NC: ISO 50001, in order to assess the energy system by applying energy management systems for energy and water reduction in the paper mill, in which the current steam generation, distribution and consumption system is diagnosed. The proposal of a modified energy scheme with 1 MW Backpressure Steam Turbine Generator and rehabilitation of the original boiler or installing a lower capacity boiler contributes to save financial resources by the concept of water, fuel and electricity. The implementation of four projects will save 3,095,574 CUC / y and an average payback period of about 1 year is expected. [ABSTRACT FROM AUTHOR]

This paper shows the design of an experimental laboratory for the cultivation of macroalgae Ulva lactuca Linnaeus. The experimental study is the initial stage of a project for reducing industrial emissions of Carbon Dioxide by capturing in seaweeds intensive culture systems. The bioreaction system comprises a culture tank with continuous feeding of sea water, air and nutrients. System assessment is performed by determining the algal biomass yield and bioreactor system behavior, based on the consumption of nutrients. From the results a scale up for a pilot scale culture of seaweeds is performed. [ABSTRACT FROM AUTHOR]

At the present time, to several decades of arising risk analysis, it is the angular stone of safety management in many industries, but practice continues not very extended in academic entities. The identified problem has to do with the absence of a Loss Prevention Management System that allows identify activities, equipment, materials or management strategies that can be loss causes or potential sources of human, financial and material being necessary to make decisions in hierarchical to order them and propose improvements to minimize the problems identified. In this work, a methodological guide is designed, which includes the use of processes safety tools to consider in developing a management system for loss prevention, to help identify, reduce and / or remove the causes of accidents by fire, explosion, or contamination, and financial costs associated with them. [ABSTRACT FROM AUTHOR]

Introduction: The work presents the experiences in development to make possible the alternatives of production chain in environmentally compatible conditions, of the sugar cane company Heriberto Duquesne based on the concept of biorefinery and using the circular economy. Objective: To show an effective and improving path for training doctors who contribute with their research to strengthen the production chain of the company for its operation and development as a biorefinery so that its business volumes gradually grow. Materials and methods: The research is carried out by articulating the postgraduate activities of the company's professionals who are surpassed in postgraduate master's degrees and doctorates who act as coordinators of projects that bring together the actions of the master's degree and of professionals who are not incorporated into the master's degree courses in a project work system. Results and discussion: This action is a component of an anticipatory system of strategic management, whose mission is to contribute to learning the best way of sustainable development through increasing linkage with other sectors of the country's economic and social life. Conclusions: The work offers the possibility of contributing to the generation of knowledge for sustainable industrial development that favors economy, and also the social impact of the territories through the resuscitation of the batey of this company in the sugar cane industry. [ABSTRACT FROM AUTHOR]

Introduction: In this work, based on the necessary technological linkage that exists in a raw sugar factory with a nearby sugar refinery, a strategy is proposed to strengthen its material and energy linkage in its development, extracting the juice from the filters. Objective: To evaluate the impact of extracting the juice from the filters on the influence on the quality of raw sugar, determining the optimal percentage of extraction to achieve the energy linkage of the combined raw sugar factory, refinery and torula cream. Materials and methods: The effect of the extraction of the juice from the filters on the quality of this type of sugar, and with it on that of refined sugar, is evaluated through the statistical modeling of the process through the aggregation of the models of the component elements, considering variations of the models in the purification stage for different per hundreds of extraction. Results and discussion: The global models of the process obtained through the aggregation of models of the partial stages are effective for predicting the sugar quality parameters. The extraction of the juice from the filters significantly increases the amount of leftover bagasse in the production of raw sugar. Conclusions: The extraction of the juice from the filters benefits the quality parameters of the produced sugar and significantly increases the amount of excess bagasse in the production of raw sugar, being an alternative to contribute to other productive demands. [ABSTRACT FROM AUTHOR]

The aim of this paper is to assess the current operating and safety conditions of biological treatment systems for wastewater in the centers of swinish and poultry breeding at Villa Clara Water Management Company, with the purpose of setting a group of organizational, technical and human measures that contributes to prevent contamination and minimize biological risks. In this way it can be guaranteed the protection to the workers, the facilities, community and the environment, to have a sure occupational atmosphere in the organization. As a result of the evaluation the factors that affect the operation of the biodigestion system and the security of the process are defined. [ABSTRACT FROM AUTHOR]