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Karel Diéguez-Santana

Bio: Karel Diéguez-Santana is an academic researcher from University of the Basque Country. The author has contributed to research in topics: Medicine & Cheminformatics. The author has an hindex of 5, co-authored 18 publications receiving 73 citations.

Papers
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29 Jan 2020
TL;DR: In this paper, the authors present an analysis of the environmental behavior and the application potentials of cleaner production mechanisms in a clothing workshop in the province of Napo, Ecuadorian Amazonia.
Abstract: La industria textil es una de las principales actividades economicas del sector manufacturero en Ecuador. Este documento presenta un analisis del comportamiento ambiental y las potencialidades de aplicacion de mecanismos de producciones mas limpias en un taller de confecciones de la provincia Napo, Amazonia Ecuatoriana. La empresa “Creaciones Freire”, labora turnos de 8 horas diarias y cuenta con 10 personas, para la operacion de 33 equipos y maquinas disponibles. Procesos de diseno, impresion, corte, termofijado, acabado, entre otros se realizan para la elaboracion de las principales confecciones (ropa deportiva e uniformes escolares). El analisis ambiental abarco la revision ambiental inicial, obtencion de informacion del proceso in situ para la elaboracion de ecomapas, ecobalances y analisis de los procesos de elaboracion. Generacion de residuos, ruido, consumo de energia, y riesgo electrico fueron los principales puntos criticos detectados en las diferentes etapas del proceso productivo. Por su parte, mediante el analisis de los procesos se determino que semanalmente se generan 86,15 kg de residuos solidos, 0,63 L de residuos liquidos de aceites y son consumidos 215,42 kWh de energia. Finalmente, se propusieron medidas de producciones mas limpias que permitan mejorar el desempeno ambiental del proceso de elaboracion de confecciones del taller. La venta de los residuos de tela y la optimizacion de la energia puede generar una ganancia de $3481,13, y son alternativas factibles de implementacion y aplicacion de las producciones mas limpia en el taller Creaciones Freire. PALABRAS CLAVE: Analisis ambiental; Industria textil; optimizacion; producciones mas limpias; residuos. THE CLEANER PRODUCTIONS IN THE MANUFACTURING TEXTILE SECTOR. A CASE STUDY IN TENA, NAPO, ECUADOR ABSTRACT The textile industry is one of the main economic activities of the manufacturing sector in Ecuador. This document presents an analysis of the environmental behavior and the application potentials of cleaner production mechanisms in a clothing workshop in the province of Napo, Ecuadorian Amazonia. The company "Creaciones Freire", works shifts of 8 hours per day and has 10 workers, for the operation of 33 equipment and machines available. Processes of design, printing, cutting, heat setting, finishing, among others are carried out for the main confection elaboration (sportswear and school uniforms). The environmental analysis included the initial environmental review, obtaining information from the in situ process for the elaboration of eco-maps, eco-balances and elaboration processes analysis. Waste generation, noise, energy consumption, and electrical risk were the main critical points detected in the different stages of the production process. On the other hand, through the analysis of the processes, it was determined that 86.15 kg of solid waste, 0.63 L of liquid waste oil are generated and 215.42 kWh of energy are consumed weekly. Finally, cleaner production measures were proposed to improve the environmental performance of the clothing shop manufacturing process. The sale of fabric waste and energy optimization can generate a profit of $3481.13, and are feasible alternatives for the implementation and cleaner production application in the clothing workshop "Creaciones Freire". KEYWORDS: Cleaner production; Environmental analysis; optimization; Textile industry; waste.

5 citations

Journal ArticleDOI
TL;DR: The present review partially confirms the basis for some of the traditional uses of Hedyosmum species (mainly H. brasiliense) through preclinical studies that demonstrated their antinociceptive and neuroprotective effects, and confirms that this genus deserves further research from ethnopharmacological and toxicological perspectives.

5 citations

Journal ArticleDOI
TL;DR: In this article, the authors analyze the environmental performance and potentialities of applying cleaner production mechanisms (CP) in the Association of producers of fine aroma cocoa "Tsatsayaku" in Ecuador, and show that mucilage and cocoa husk generation are the main environmental problems of the process.
Abstract: Cocoa is one of the most important crops in Ecuador, destined for export to be used in making chocolate in other countries. The objective of this work was to analyze the environmental performance and the potentialities of applying cleaner production mechanisms (CP) in the Association of producers of fine aroma cocoa \"Tsatsayaku\". The CP tools used were the initial environmental review, ecomaps, and process analysis. The results show that mucilage and cocoa husk generation are the main environmental problems of the process. Two improvement options were proposed and evaluated to control and reduce process contamination. The analysis shows a B / C ratio of 1.38 and the Net Present Value is $ 36,001.37 with an Internal Rate of Return of 249.29%. Finally, the application of practices and technologies framed in CP systems can optimize the use of raw materials and reduce the solid and liquid contaminants generated.

4 citations

Journal ArticleDOI
TL;DR: In this article, the authors present alternatives for meeting the deficit in sugared substrates in a territory with several sugar mills and ethanol distilleries so they can reach their current production capacity.
Abstract: This paper presents alternatives for meeting the deficit in sugared substrates in a territory with several sugar mills and ethanol distilleries so they can reach their current production capacity. By using secondary currents and diluted juices from the sugar production process, wastage was first reduced to 26.92%. Then by optimizing the molasses linking and bagasse between sugar mills and ethanol distilleries, an important problem was resolved allowing production capacity to be met. This represented a 154.96% increase over what was initially planned.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the authors proposed to increase the acceptability of the sensory quality attributes of sugarcane honey by simulating and decreasing the uncertainty of operational parameters, based on the development of a case study through a strategy that contemplates the analysis of the initial data and performs calculations through the use of mathematical models.
Abstract: This work proposes to increase the acceptability of the sensory quality attributes of sugarcane honey by simulating and decreasing the uncertainty of operational parameters. To this effect, it relies on the development of a case study through a strategy that contemplates the analysis of the initial data and performs calculations through the use of mathematical models, the determination of the Sigma quality level, and the use of the GUM methodology (Guide to the expression of uncertainty in measurement). It was demonstrated that a range with a great variability in the initial operational parameters generated a Sigma level of less than three and a decrease in revenues of 30-52% due to low product sales for the studied productions. By decreasing pH uncertainty from 3,79 to 4,21, and Brix degrees from 75,13 to 76,88, an increase in the Sigma level of quality was observed, which exceeded six, in compliance with product quality specifications, as well as a reduction in economic losses due to defective products. The importance of quality in the product design and the process is evinced, given its influence on the acceptability of the product and the feasibility of the process.

3 citations


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01 Jan 2016
TL;DR: In this paper, plots transformations and regression is used as an introduction to graphical methods of diagnostic regression analysis, but end up in malicious downloads, instead of reading a good book with a cup of coffee in the afternoon, instead they are facing with some infectious bugs inside their laptop.
Abstract: Thank you very much for reading plots transformations and regression an introduction to graphical methods of diagnostic regression analysis. Maybe you have knowledge that, people have look numerous times for their favorite readings like this plots transformations and regression an introduction to graphical methods of diagnostic regression analysis, but end up in malicious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they are facing with some infectious bugs inside their laptop.

138 citations

Journal ArticleDOI
TL;DR: This review presents the developments in artificial intelligence technologies for environmental pollution controls and the future challenges of AI-based models employed in the environmental fields are discussed and proposed.

124 citations

01 Jan 2011

118 citations

Journal ArticleDOI
TL;DR: The diverse structures of CPs 1-6 illustrate that the substitute group and position of the methyl group of the bis(benzimidazole) derivatives play a significant role in the assembly of such interpenetrated frameworks.
Abstract: Six Co(II)-based coordination polymers (CPs) with characteristic frameworks and topologies—namely, [Co(L1)(DCTP)]n (1), [Co(L2)(DCTP)]n (2), [Co(L3)(DCTP)]n (3), {[Co3(L4)3(DCTP)3·H2O]·H2O}n (4), [Co(L5)1.5(DCTP)]n (5) and [Co(L6)(DCTP)]n (6)—were successfully hydrothermally synthesized by employing the halogenated linear ligand 2,5-dichloroterephthalic acid (H2DCTP). The interpenetrated structures could be rationally modulated by auxiliary N-donor co-ligands containing 1,1′-(1,4-butanediyl)bis-1H-benzimidazole (L1), 1,4-bis(5,6-dimethylbenzimidazol-1-yl)-2-butylene (L2), 1,2-bis(2-methylbenzimidazol-1-ylmethyl)benzene (L3), 1,4-bis(2-methylbenzimidazol-1-ylmethyl)benzene (L4), 1,2-bis(5,6-dimethylbenzimidazol-1-ylmethyl)benzene (L5) and 1,4-bis(5,6-dimethylbenzimidazol-1-ylmethyl)benzene (L6). These diaphanous crystals were clearly characterized by elemental analysis, infrared (IR) spectra and X-ray powder diffraction (XRPD) as well as single-crystal X-ray diffraction analysis. With the aid of the flexible N-donor co-ligands, CP 1 occupies a non-interpenetrated 2D sheet with the point symbol {44·62} sql net topology, CP 2 possesses a 3D hexagon-shaped network with the point symbol {66} three-fold interpenetrated sqc6 topology, CP 3 exhibits a 2D layer with the point symbol {44·62} sql net topology, CP 4 reveals an unusual 3D framework with the point symbol {42·63·8} three-fold interpenetrated sra topology, CP 5 has a 3D hexagon-shaped network with the point symbol {66} two-fold interpenetrated sqc6 topology, while CP 6 displays a 3D hexagon-shaped network with the point symbol {66} three-fold interpenetrated sqc6 topology. The diverse structures of CPs 1–6 illustrate that the substitute group and position of the methyl group of the bis(benzimidazole) derivatives play a significant role in the assembly of such interpenetrated frameworks. Moreover, luminescence properties and thermal behavior, as well as the electrochemical and photocatalytic properties of CPs 1–6 on the degradation of methylene blue, are also presented.

77 citations