Activated carbon (AC) was made from coffee bean waste, which was prepared by chemical activation, using potassium hydroxide (KOH) at 2 M as activating agent, with impregnation times of 24 and 48 h, temperatures carbonization of 600 and 700 ° C, once the activated carbon samples were obtained, they were doped with nickel oxide (NiO), in order to modify the electrical properties of CA, later they were characterized (physical adsorption of N2, FT-IR, XRD). The CA / NiO composites were prepared by the chemical method and electrodes were compacted into forms of self-consistent tablets, which were placed in a two-electrode cell using sulfuric acid (H2SO4) as electrolyte at 2 M. The electrochemical part was evaluated by means of Cyclic voltammetry and galvanostatic chronopotentiometry, obtaining the electrical behavior of the electrodes for their application in supercapacitors (SCS). Finally, the specific capacitance of the SCS was determined from CA / NiO, as a result it was obtained that the CA / NiO-48-700 ° C-KOH samples showed a maximum capacitance of: 405.405 F / g respectively. This proves that nickel oxide improved the properties of AC for use as electrodes in supercapacitors.
{"title":"Supercapacitors for storing energy from coffee bean waste","authors":"E. Del Angel-Meraz, A. Pérez-Aguirre","doi":"10.56845/rebs.v2i2.23","DOIUrl":"https://doi.org/10.56845/rebs.v2i2.23","url":null,"abstract":"Activated carbon (AC) was made from coffee bean waste, which was prepared by chemical activation, using potassium hydroxide (KOH) at 2 M as activating agent, with impregnation times of 24 and 48 h, temperatures carbonization of 600 and 700 ° C, once the activated carbon samples were obtained, they were doped with nickel oxide (NiO), in order to modify the electrical properties of CA, later they were characterized (physical adsorption of N2, FT-IR, XRD). The CA / NiO composites were prepared by the chemical method and electrodes were compacted into forms of self-consistent tablets, which were placed in a two-electrode cell using sulfuric acid (H2SO4) as electrolyte at 2 M. The electrochemical part was evaluated by means of Cyclic voltammetry and galvanostatic chronopotentiometry, obtaining the electrical behavior of the electrodes for their application in supercapacitors (SCS). Finally, the specific capacitance of the SCS was determined from CA / NiO, as a result it was obtained that the CA / NiO-48-700 ° C-KOH samples showed a maximum capacitance of: 405.405 F / g respectively. This proves that nickel oxide improved the properties of AC for use as electrodes in supercapacitors.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132219540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. S. Rosas-Mendoza, Diana Nava-Pacheco, Inés Adriana Juárez-García, Ofelia Landeta-Escamilla, S. del Moral
The use of fossil fuels is losing versus the use renewable energy sources such as biomass and biogas, due to the environmental impacts that they generate. In Mexico, Veracruz has an area of 7.24 x 106 hectares, representing 3.7% of the national area, being the main provider of agroindustrial products due to its diversity of ecosystems. The objective of this paper is to evaluate the bioenergy potential of organic solid waste generated from the main agroindustrial products of the state of Veracruz. To carry out this research, ten main crops of Veracruz were selected through a literature review, determining the percentage of waste generation and heating value of each of them. With the previous data, the tons of agroindustrial waste and the bioenergy potential were estimated. Finally, the total bioenergy potential of agroindustrial wastes was calculated. As part of the results, Veracruz produces approximately 25.5 x 106 tons of agroindustrial products made up of sugarcane, orange, lemon, pineapple, coffee, banana, grapefruit, watermelon, rice and pear. Derived from the ago-industrial activity, 6.97 x 106 tons of waste are generated annually, being the sugarcane waste the most with 75% equivalent to 5.28 x 106 tons, followed by citrus around 0.98 x 106 tons. Likewise, and as a consequence of agroindustrial waste, Veracruz has a bioenergy potential close to 130.00 PJ per year, which would place it as the largest supplier of renewable energy from biomass.
由于化石燃料产生的环境影响，与使用生物质和沼气等可再生能源相比，化石燃料的使用正在减少。在墨西哥，韦拉克鲁斯州的面积为7.24 x 106公顷，占全国面积的3.7%，由于其生态系统的多样性，成为农工产品的主要供应地。本文的目的是评估维拉克鲁斯州主要农工产品产生的有机固体废物的生物能源潜力。为了进行这项研究，通过文献综述，选择了韦拉克鲁斯州的十种主要作物，确定了每种作物的废物产生率和热值。在此基础上，对我国农工废弃物吨数和生物能源潜力进行了估算。最后，计算了工农业废弃物的总生物能源潜力。作为成果的一部分，韦拉克鲁斯州生产了大约25.5 x 106吨的农业工业产品，包括甘蔗、橙子、柠檬、菠萝、咖啡、香蕉、葡萄柚、西瓜、大米和梨。源自农业工业活动，每年产生6.97 x 106吨废物，其中甘蔗废物最多，占75%，相当于5.28 x 106吨，其次是柑橘，约0.98 x 106吨。同样，由于农业工业废弃物的影响，韦拉克鲁斯的生物能源潜力接近每年130.00 PJ，这将使其成为最大的生物质可再生能源供应商。
{"title":"Bioenergy potential from agroindustrial wastes of the state of Veracruz","authors":"E. S. Rosas-Mendoza, Diana Nava-Pacheco, Inés Adriana Juárez-García, Ofelia Landeta-Escamilla, S. del Moral","doi":"10.56845/rebs.v2i2.22","DOIUrl":"https://doi.org/10.56845/rebs.v2i2.22","url":null,"abstract":"The use of fossil fuels is losing versus the use renewable energy sources such as biomass and biogas, due to the environmental impacts that they generate. In Mexico, Veracruz has an area of 7.24 x 106 hectares, representing 3.7% of the national area, being the main provider of agroindustrial products due to its diversity of ecosystems. The objective of this paper is to evaluate the bioenergy potential of organic solid waste generated from the main agroindustrial products of the state of Veracruz. To carry out this research, ten main crops of Veracruz were selected through a literature review, determining the percentage of waste generation and heating value of each of them. With the previous data, the tons of agroindustrial waste and the bioenergy potential were estimated. Finally, the total bioenergy potential of agroindustrial wastes was calculated. As part of the results, Veracruz produces approximately 25.5 x 106 tons of agroindustrial products made up of sugarcane, orange, lemon, pineapple, coffee, banana, grapefruit, watermelon, rice and pear. Derived from the ago-industrial activity, 6.97 x 106 tons of waste are generated annually, being the sugarcane waste the most with 75% equivalent to 5.28 x 106 tons, followed by citrus around 0.98 x 106 tons. Likewise, and as a consequence of agroindustrial waste, Veracruz has a bioenergy potential close to 130.00 PJ per year, which would place it as the largest supplier of renewable energy from biomass.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129758685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kendra Martínez-Flores, S. Ortíz-Gómez, P. Mijaylova-Nacheva, C. Cuevas-Arteaga
Provide in a single paragraph of 300 words maximum an overview of the work, including background, methodology, main results, and conclusions. One of the biggest problems of the 21st century is perhaps the need to provide water for the growing world population. Faced with this global problem around water, pollution is a factor of great importance, since the pollutants generated by industrial and domestic activity can be accumulated and transported by both surface and underground waters, deteriorating their quality. Therefore, it is necessary to study the behavior of these pollutants in water and propose treatment techniques that can eliminate them. Regarding water treatment techniques, it has been shown that heterogeneous photocatalysis with TiO2 is a clearly effective and environmentally an advantageous alternative for the removal of organic substances in aqueous media. In photocatalysis degradation processes, the analysis of the influence of the surface phenomena on the degradation reactions is of special interest. In the present work, the preparation of TiO2 self-ordered nanotubular films was carried out by means of the electrochemical anodization technique using the electrolyte: 50% Vol. Glycerol + 50% Vol. H2O + NH4F [0.27M), to be utilized in a Photocatalytic Reactor (FR) for the photodegradation of Metoprolol in order to evaluate the efficiency of the heterogeneous photocatalytic as an Advanced Oxidation Processes (AOP) through the photodegradation of the emerging pollutant under study and determine the efficiency of the photodegradation through the technique of gas chromatography coupled to mass spectrometry (GC-MS).
{"title":"Use of nanotubular TiO2 films for the photo-degradation of emerging contaminants (drugs) in water","authors":"Kendra Martínez-Flores, S. Ortíz-Gómez, P. Mijaylova-Nacheva, C. Cuevas-Arteaga","doi":"10.56845/rebs.v2i2.24","DOIUrl":"https://doi.org/10.56845/rebs.v2i2.24","url":null,"abstract":"\u0000 Provide in a single paragraph of 300 words maximum an overview of the work, including background, methodology, main results, and conclusions. One of the biggest problems of the 21st century is perhaps the need to provide water for the growing world population. Faced with this global problem around water, pollution is a factor of great importance, since the pollutants generated by industrial and domestic activity can be accumulated and transported by both surface and underground waters, deteriorating their quality. Therefore, it is necessary to study the behavior of these pollutants in water and propose treatment techniques that can eliminate them. \u0000 \u0000 \u0000Regarding water treatment techniques, it has been shown that heterogeneous photocatalysis with TiO2 is a clearly effective and environmentally an advantageous alternative for the removal of organic substances in aqueous media. In photocatalysis degradation processes, the analysis of the influence of the surface phenomena on the degradation reactions is of special interest. \u0000 \u0000 \u0000In the present work, the preparation of TiO2 self-ordered nanotubular films was carried out by means of the electrochemical anodization technique using the electrolyte: 50% Vol. Glycerol + 50% Vol. H2O + NH4F [0.27M), to be utilized in a Photocatalytic Reactor (FR) for the photodegradation of Metoprolol in order to evaluate the efficiency of the heterogeneous photocatalytic as an Advanced Oxidation Processes (AOP) through the photodegradation of the emerging pollutant under study and determine the efficiency of the photodegradation through the technique of gas chromatography coupled to mass spectrometry (GC-MS). \u0000","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127394852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luis Carlos Sandoval-Herazo, A. Alvarado-Lassman, Graciela Nani, Carlos Nakase-Rodríguez
Light is an indispensable source for the photosynthesis of plants, but also for their growth and development. On the other hand, the production of ornamental plants requires multiple nutrients for their proper development, a source available in high concentrations in wastewater. Recent research on constructed wetlands (CWs) that use ornamental plants to treat wastewater and at the same time are used as a means of growth, is considered a sustainable alternative. This study evaluated the influence of light intensity on the growth and flowering of ornamental plants (Lavandula sp., Anthurium sp., Zantedeschia aethiopica and Spathiphyllum wallisii) in constructed wetlands, fed with domestic wastewater. 30 mesocosms of constructed wetlands were used as a culture medium for ornamental plants, the effect of light intensity on the development of the plants was measured, as well as the removal of Nitrogen (N-NO3), phosphate (P-PO4) and biochemical demand of oxygen (DBQ5). The plants were able to adapt and grew healthy in the three-support media with the exception of Lavandula sp., which did not survive in any of the systems, showing that in the months when the light intensity was higher, a higher growth rate was reached to 9.5 % on average. In terms of the removal of N-NO3 (45- 60%), P-PO4 (20-23%) and COD5 (60-85%), no significant differences were found between any of the substrates. The above allows us to affirm that CWs, are suitable means for cultivation of ornamental plants and the development of them is favored with intensities of light in ranges from 720 to 856 µmol · m −2 · s −1, On the other hand, the substrates used proved to be efficient to remove contaminants, but at the same time to facilitate the healthy development of the used ornamental vegetation, with the exception of the lavender sp. Research is required to evaluate the effects of light intensity on the production of ornamental plants in controlled environments.
{"title":"Influence of light intensity on growth and flowering ornamental plants in constructed wetlands","authors":"Luis Carlos Sandoval-Herazo, A. Alvarado-Lassman, Graciela Nani, Carlos Nakase-Rodríguez","doi":"10.56845/rebs.v2i2.25","DOIUrl":"https://doi.org/10.56845/rebs.v2i2.25","url":null,"abstract":"Light is an indispensable source for the photosynthesis of plants, but also for their growth and development. On the other hand, the production of ornamental plants requires multiple nutrients for their proper development, a source available in high concentrations in wastewater. Recent research on constructed wetlands (CWs) that use ornamental plants to treat wastewater and at the same time are used as a means of growth, is considered a sustainable alternative. This study evaluated the influence of light intensity on the growth and flowering of ornamental plants (Lavandula sp., Anthurium sp., Zantedeschia aethiopica and Spathiphyllum wallisii) in constructed wetlands, fed with domestic wastewater. 30 mesocosms of constructed wetlands were used as a culture medium for ornamental plants, the effect of light intensity on the development of the plants was measured, as well as the removal of Nitrogen (N-NO3), phosphate (P-PO4) and biochemical demand of oxygen (DBQ5). The plants were able to adapt and grew healthy in the three-support media with the exception of Lavandula sp., which did not survive in any of the systems, showing that in the months when the light intensity was higher, a higher growth rate was reached to 9.5 % on average. In terms of the removal of N-NO3 (45- 60%), P-PO4 (20-23%) and COD5 (60-85%), no significant differences were found between any of the substrates. The above allows us to affirm that CWs, are suitable means for cultivation of ornamental plants and the development of them is favored with intensities of light in ranges from 720 to 856 µmol · m −2 · s −1, On the other hand, the substrates used proved to be efficient to remove contaminants, but at the same time to facilitate the healthy development of the used ornamental vegetation, with the exception of the lavender sp. Research is required to evaluate the effects of light intensity on the production of ornamental plants in controlled environments.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115726793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brenda J. Alvarez-Chavez, S. Godbout, Étienne Le Roux, J. Palacios, V. Raghavan
Fast pyrolysis is a thermochemical process capable of producing biofuels that can replace fossil fuels. Pyrolytic oil can be used for electricity production, heating and chemical extraction (Fu et al., 2017; Kalargaris et al., 2017). However, the quality of bio-oil is limited by its low chemical stability associated with aging, low calorific value, high water content, high viscosity and high acidity (Alvarez-Chavez et al., 2019; Carpenter et al., 2014). Therefore, it is necessary to improve the quality of bio-oil before its use in our daily life. This study provides the evaluation of the effect of the operating conditions of a pyrolyzer reactor and its condensing system on the quality and yield of bio-oil. Response surface analysis was applied to optimize the quality and yield of bio-oil using four operational variables of the pyrolyzer. As a result, statistical models corresponding to the studied responses were obtained.
快速热解是一种热化学过程，能够生产出替代化石燃料的生物燃料。热解油可用于发电、加热和化工提取(Fu et al.， 2017;Kalargaris et al.， 2017)。然而，生物油的质量受到老化相关的低化学稳定性、低热值、高含水量、高粘度和高酸度的限制(Alvarez-Chavez et al.， 2019;Carpenter et al.， 2014)。因此，在我们日常生活中使用生物油之前，有必要提高生物油的质量。研究了热解反应器及其冷凝系统的操作条件对生物油质量和产率的影响。采用响应面分析法对热解装置的4个操作变量进行了优化。得到了与所研究的响应相对应的统计模型。
{"title":"Improved bio-oil yield and quality through fast pyrolysis and fractional condensation concepts","authors":"Brenda J. Alvarez-Chavez, S. Godbout, Étienne Le Roux, J. Palacios, V. Raghavan","doi":"10.56845/rebs.v2i1.21","DOIUrl":"https://doi.org/10.56845/rebs.v2i1.21","url":null,"abstract":"Fast pyrolysis is a thermochemical process capable of producing biofuels that can replace fossil fuels. Pyrolytic oil can be used for electricity production, heating and chemical extraction (Fu et al., 2017; Kalargaris et al., 2017). However, the quality of bio-oil is limited by its low chemical stability associated with aging, low calorific value, high water content, high viscosity and high acidity (Alvarez-Chavez et al., 2019; Carpenter et al., 2014). Therefore, it is necessary to improve the quality of bio-oil before its use in our daily life. This study provides the evaluation of the effect of the operating conditions of a pyrolyzer reactor and its condensing system on the quality and yield of bio-oil. Response surface analysis was applied to optimize the quality and yield of bio-oil using four operational variables of the pyrolyzer. As a result, statistical models corresponding to the studied responses were obtained.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127131017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Itzel Argemi Cacique-Espinoza, M. Güizado-Rodríguez, Miriam Rangel-Ayala, V. Barba, J. Maldonado-Rivera
Semiconducting polymers are widely studied due to their applications in photovoltaic devices, the predominant conjugated polymer used in organic solar cells (OSCs) is semicrystalline poly(3-hexylthiophene) P3HT, which can be produced by easy, low-cost and environmentally friendly methods such as direct arylation polymerization (DArP) (N.S. Gobalasingham et al. 2018). Due to its solution processing, deposition on different types of substrates, even flexible, with technologies such as spin coating and roll to roll, it is a feasible option for large-scale production. In this work we present the synthesis, physicochemical characterization of a regio- regular P3HT by the direct arylation method using Fagnou conditions and its evaluation on the active layer of OSCs with bulk heterojunction architecture.
{"title":"Development of regio-regular poly(3-hexylthiophene) by direct arylation using Fagnou's conditions.","authors":"Itzel Argemi Cacique-Espinoza, M. Güizado-Rodríguez, Miriam Rangel-Ayala, V. Barba, J. Maldonado-Rivera","doi":"10.56845/rebs.v2i1.20","DOIUrl":"https://doi.org/10.56845/rebs.v2i1.20","url":null,"abstract":"Semiconducting polymers are widely studied due to their applications in photovoltaic devices, the predominant conjugated polymer used in organic solar cells (OSCs) is semicrystalline poly(3-hexylthiophene) P3HT, which can be produced by easy, low-cost and environmentally friendly methods such as direct arylation polymerization (DArP) (N.S. Gobalasingham et al. 2018). Due to its solution processing, deposition on different types of substrates, even flexible, with technologies such as spin coating and roll to roll, it is a feasible option for large-scale production. In this work we present the synthesis, physicochemical characterization of a regio- regular P3HT by the direct arylation method using Fagnou conditions and its evaluation on the active layer of OSCs with bulk heterojunction architecture.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129314464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. M. Sanchez-Silva, Ángel Fonseca-Cantabrana, R. González-Estrada, F. Blancas-Benitez
Water contamination by heavy metals is generally caused by anthropic activities, with industry being the main source of contamination. The tannery is one of them, since it uses hexavalent chromium salts [Cr (VI)] in the process, and when its effluents are poorly treated, they irremediably damage water bodies and their consumption can have negative effects on human health, such as renal dysfunction and cancer of the digestive tract. Biosorption is an alternative method for the treatment of effluents contaminated with Cr (VI), which consists of using biomass as adsorbent, preferably agro-industrial wastes which, possessing functional groups on their surface and pores, are susceptible to binding with Cr (VI) through mechanisms such as complexation (Al-Homaidan et al., 2018). The nanche fruit (Byrsonima crassifolia L.) has economic importance due to its commercial production, the Agroindustrial and Fisheries Information Service (SIAP) reported in 2016 a production of 7.1 thousand tons of which 0.781 thousand tons of waste were generated considering that 11% of the fruit corresponds to the endocarp which is considered a byproduct (SIAP, 2018), according to the above; using the byproduct as a bioadsorbent develops a new route for its utilization.
{"title":"Biosorption of hexavalent chromium using nanche (Byrsonima crassifolia L.) by-product","authors":"J. M. Sanchez-Silva, Ángel Fonseca-Cantabrana, R. González-Estrada, F. Blancas-Benitez","doi":"10.56845/rebs.v2i1.14","DOIUrl":"https://doi.org/10.56845/rebs.v2i1.14","url":null,"abstract":"Water contamination by heavy metals is generally caused by anthropic activities, with industry being the main source of contamination. The tannery is one of them, since it uses hexavalent chromium salts [Cr (VI)] in the process, and when its effluents are poorly treated, they irremediably damage water bodies and their consumption can have negative effects on human health, such as renal dysfunction and cancer of the digestive tract. Biosorption is an alternative method for the treatment of effluents contaminated with Cr (VI), which consists of using biomass as adsorbent, preferably agro-industrial wastes which, possessing functional groups on their surface and pores, are susceptible to binding with Cr (VI) through mechanisms such as complexation (Al-Homaidan et al., 2018). The nanche fruit (Byrsonima crassifolia L.) has economic importance due to its commercial production, the Agroindustrial and Fisheries Information Service (SIAP) reported in 2016 a production of 7.1 thousand tons of which 0.781 thousand tons of waste were generated considering that 11% of the fruit corresponds to the endocarp which is considered a byproduct (SIAP, 2018), according to the above; using the byproduct as a bioadsorbent develops a new route for its utilization.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124731028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Suárez-Toriello, Z. Y. Méndez-Martínez, J. I. Cervantes-Arista, M. F. López-Núñez, Liliana Villafaña-López, Juan José Quiroz- Ramírez, R. Guerra-Sánchez
In the refining of bio- and petro-oils, solid carbonaceous residues are obtained whose final destination is combustion. It is possible to take advantage of these residues through the oxidation technique in an aqueous medium, producing soluble oxygenated organic compounds, analogous to humic substances: humic acids, fulvic acids and humins (Ashtari, et al., 2016). Humic substances possess a large amount of phenolic and carboxylic groups, which provide them with characteristics for crop development. These include colloidal action on clays, ion exchange capacity, chelating action for metal capture and stimulation of soil micro-fauna and -flora. Additionally, they can be used in the formulation of lubricants, adsorbents and fuels (Martinez et al., 2013). This work explores the transformation of the carbonaceous residue of heavy oil coking, through its oxidation in an aqueous medium for the production of soluble organic compounds, with potential application in soil improvement and other applications, in such a way that it contributes to increase sustainability in the hydrocarbon production chain.
在生物油和石油的精炼过程中，得到固体碳质残留物，其最终归宿是燃烧。可以通过在水介质中的氧化技术利用这些残留物，产生可溶性含氧有机化合物，类似于腐植酸物质:腐植酸、黄腐酸和腐植酸(Ashtari, et al.， 2016)。腐殖质具有大量的酚基和羧基，为作物的发育提供了特性。这些包括对粘土的胶体作用、离子交换能力、金属捕获的螯合作用和对土壤微动植物群的刺激。此外，它们还可用于润滑油、吸附剂和燃料的配方中(Martinez et al.， 2013)。这项工作探索了重油焦化后碳质残渣的转化，通过其在水介质中的氧化产生可溶性有机化合物，在土壤改良和其他应用中具有潜在的应用前景，从而有助于提高碳氢化合物生产链的可持续性。
{"title":"Obtaining humic substances from a carbonaceous industrial residue","authors":"V. Suárez-Toriello, Z. Y. Méndez-Martínez, J. I. Cervantes-Arista, M. F. López-Núñez, Liliana Villafaña-López, Juan José Quiroz- Ramírez, R. Guerra-Sánchez","doi":"10.56845/rebs.v2i1.17","DOIUrl":"https://doi.org/10.56845/rebs.v2i1.17","url":null,"abstract":"In the refining of bio- and petro-oils, solid carbonaceous residues are obtained whose final destination is combustion. It is possible to take advantage of these residues through the oxidation technique in an aqueous medium, producing soluble oxygenated organic compounds, analogous to humic substances: humic acids, fulvic acids and humins (Ashtari, et al., 2016). Humic substances possess a large amount of phenolic and carboxylic groups, which provide them with characteristics for crop development. These include colloidal action on clays, ion exchange capacity, chelating action for metal capture and stimulation of soil micro-fauna and -flora. Additionally, they can be used in the formulation of lubricants, adsorbents and fuels (Martinez et al., 2013). This work explores the transformation of the carbonaceous residue of heavy oil coking, through its oxidation in an aqueous medium for the production of soluble organic compounds, with potential application in soil improvement and other applications, in such a way that it contributes to increase sustainability in the hydrocarbon production chain.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127961067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Baltierra-Trejo, R. Adams, V. Domínguez-Rodríguez
For the control of the fungus Mycosphaerella fijiensis in banana crops, between 42 to 50 applications of 2 kg ha-1 yr-1 of the fungicide ethylenebisdithiocarbamate (EBDC) are made. However, due to occasional spills during handling, there is a risk of contamination of surface and groundwater (Geissen et al. 2010). One mitigation alternative is the use of biobeds that facilitate adsorption and degradation of the contaminant (Torstensson 2000). However, research is required on the parameters that affect the degradation of xenobiotics within biobeds, such as the appropriate proportion of substrates in the bio-mixture (Karanasios et al. 2012). The objective of this research was to evaluate the reduction of toxicity in EBDC-contaminated leachates using mixtures based on organic substrates available at the cultivation sites.
为了控制香蕉作物中的斐济真菌，杀菌剂乙二硫代氨基甲酸乙酯(EBDC)每年施用42至50次，每次2公斤/年。然而，由于在处理过程中偶尔发生泄漏，有污染地表和地下水的风险(Geissen et al. 2010)。一种缓解办法是使用生物床，促进污染物的吸附和降解(Torstensson, 2000年)。然而，需要对影响生物床内异种生物降解的参数进行研究，例如生物混合物中底物的适当比例(Karanasios et al. 2012)。本研究的目的是评估在种植场地使用基于有机基质的混合物来降低ebdc污染的渗滤液的毒性。
{"title":"Life extension of biobeds for the remediation of pesticide-contaminated wastewater in banana crops","authors":"E. Baltierra-Trejo, R. Adams, V. Domínguez-Rodríguez","doi":"10.56845/rebs.v2i1.19","DOIUrl":"https://doi.org/10.56845/rebs.v2i1.19","url":null,"abstract":"For the control of the fungus Mycosphaerella fijiensis in banana crops, between 42 to 50 applications of 2 kg ha-1 yr-1 of the fungicide ethylenebisdithiocarbamate (EBDC) are made. However, due to occasional spills during handling, there is a risk of contamination of surface and groundwater (Geissen et al. 2010). One mitigation alternative is the use of biobeds that facilitate adsorption and degradation of the contaminant (Torstensson 2000). However, research is required on the parameters that affect the degradation of xenobiotics within biobeds, such as the appropriate proportion of substrates in the bio-mixture (Karanasios et al. 2012). The objective of this research was to evaluate the reduction of toxicity in EBDC-contaminated leachates using mixtures based on organic substrates available at the cultivation sites.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132772282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A steady increase in charcoal production as an energy source is expected (FAO, 2017). Its negative effects due to above-ground biomass removal (BSS) suggest favoring conservation (Lee and Lautenbach, 2016; Monárrez- González, et.al., 2018). However, sustainable forest management [SFM] allows considering charcoal as a renewable source of energy (Antinori and Rausser, 2010; Camou-Guerrero, et.al., 2014; Sist, et.al., 2014; Aguirre-Calderón, 2015; FAO, 2017; Ramírez, 2017). Mexican regulations focus SFM on functionality, industrialization and large scale (Antinori and Rausser, 2010; Deschamps and Madrid, 2018; Cravioto, 2019); informality is considered unsustainable due to irregular and poor management practices (Sist, et.al., 2014; Monárrez- González, et.al., 2018). We analyzed impacts of three oak management systems on tons of BSS: [1] conservation, [2] formal production, and [3] informal production; influenced by [1] advantageous (nursery), and [2] disadvantageous (drying shed) biophysical conditions. We focused on verifying the existence of differences in BSS and structure between systems and conditions. With such analysis, we reconsider the bias towards conserving and the dismissal of informality as unsustainable.
{"title":"Is informal charcoal production necessarily unsustainable? A comparison of three oak management systems in the central Mexican Sierras.","authors":"Javier Guzmán-Sánchez, T. Mwampamba","doi":"10.56845/rebs.v2i1.18","DOIUrl":"https://doi.org/10.56845/rebs.v2i1.18","url":null,"abstract":"A steady increase in charcoal production as an energy source is expected (FAO, 2017). Its negative effects due to above-ground biomass removal (BSS) suggest favoring conservation (Lee and Lautenbach, 2016; Monárrez- González, et.al., 2018). However, sustainable forest management [SFM] allows considering charcoal as a renewable source of energy (Antinori and Rausser, 2010; Camou-Guerrero, et.al., 2014; Sist, et.al., 2014; Aguirre-Calderón, 2015; FAO, 2017; Ramírez, 2017). Mexican regulations focus SFM on functionality, industrialization and large scale (Antinori and Rausser, 2010; Deschamps and Madrid, 2018; Cravioto, 2019); informality is considered unsustainable due to irregular and poor management practices (Sist, et.al., 2014; Monárrez- González, et.al., 2018). We analyzed impacts of three oak management systems on tons of BSS: [1] conservation, [2] formal production, and [3] informal production; influenced by [1] advantageous (nursery), and [2] disadvantageous (drying shed) biophysical conditions. We focused on verifying the existence of differences in BSS and structure between systems and conditions. With such analysis, we reconsider the bias towards conserving and the dismissal of informality as unsustainable.","PeriodicalId":194964,"journal":{"name":"Renewable Energy, Biomass & Sustainability","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127413375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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