Pub Date : 2024-02-05DOI: 10.3390/resources13020025
Józef Ober, J. Karwot, Charli Sitinjak
One of the most important methods of optimising water consumption is grey water recycling. From a technological point of view, the treatment of grey water guarantees that it can be reused for domestic or corporate purposes, but it raises the issue of the social acceptance of the use of such water. This study aimed to assess the possibility of using grey water in households in Poland. The originality of this research study lies in the application of the PROFIT method for the separate construction of models of the benefits of grey water according to user groups. Four groups were identified, differentiated by gender and age; age and possession of an irretrievable water meter; gender and place of residence; place of residence and possession of an irretrievable water meter. To answer the formulated research questions, a diagnostic survey method was used, in which 807 randomly selected respondents from all over Poland were surveyed. The results of the survey indicate that homeowners perceive the potential use of grey water as beneficial, pointing most often to the following factors: rebuilding groundwater levels, reduced extraction of drinking water from rivers and other water bodies, and increased vegetation growth. On the other hand, they are concerned about the need to reconstruct the existing water and sewerage systems in order to produce drinking water from grey water as well as about the high cost and parameter stability of drinking water produced from grey water. Furthermore, men and older people attribute less importance to measures related to the introduction of good practices based on the reuse of recycled water in water management. Women, on the other hand, appreciate almost all opportunities to use grey water to a greater extent than men.
{"title":"Modelling Possible Household Uses of Grey Water in Poland using Property Fitting Analysis","authors":"Józef Ober, J. Karwot, Charli Sitinjak","doi":"10.3390/resources13020025","DOIUrl":"https://doi.org/10.3390/resources13020025","url":null,"abstract":"One of the most important methods of optimising water consumption is grey water recycling. From a technological point of view, the treatment of grey water guarantees that it can be reused for domestic or corporate purposes, but it raises the issue of the social acceptance of the use of such water. This study aimed to assess the possibility of using grey water in households in Poland. The originality of this research study lies in the application of the PROFIT method for the separate construction of models of the benefits of grey water according to user groups. Four groups were identified, differentiated by gender and age; age and possession of an irretrievable water meter; gender and place of residence; place of residence and possession of an irretrievable water meter. To answer the formulated research questions, a diagnostic survey method was used, in which 807 randomly selected respondents from all over Poland were surveyed. The results of the survey indicate that homeowners perceive the potential use of grey water as beneficial, pointing most often to the following factors: rebuilding groundwater levels, reduced extraction of drinking water from rivers and other water bodies, and increased vegetation growth. On the other hand, they are concerned about the need to reconstruct the existing water and sewerage systems in order to produce drinking water from grey water as well as about the high cost and parameter stability of drinking water produced from grey water. Furthermore, men and older people attribute less importance to measures related to the introduction of good practices based on the reuse of recycled water in water management. Women, on the other hand, appreciate almost all opportunities to use grey water to a greater extent than men.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139865479","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}
Pub Date : 2024-02-05DOI: 10.3390/resources13020026
Andrey Lebedev, Alexey Cherepovitsyn
Drilling-waste management is of great importance in the oil and gas industry due to the substantial volume of multi-component waste generated during the production process. Improper waste handling can pose serious environmental risks, including soil and water contamination and the release of harmful chemicals. Failure to properly manage waste can result in large fines and legal consequences, as well as damage to corporate reputation. Proper drilling-waste management is essential to mitigate these risks and ensure the sustainable and responsible operation of oil and gas projects. It involves the use of advanced technologies and best practices to treat and utilize drilling waste in an environmentally safe and cost-effective manner. This article describes a feasibility study of four drilling-waste management options in the context of the Khanty-Mansi Autonomous Okrug of Russia. For ten years of the project life, the NPV under the base scenario is equal to RUB −3374.3 million, under the first scenario is equal to RUB −1466.7 million, under the second scenario is equal to RUB −1666.8 million and under the third scenario is equal to RUB −792.4 million. When considering projects, regardless of oil production, the project under the third scenario pays off in 7.8 years and the NPV is RUB 7.04 million. The MCD and MCV parameters were calculated to be 106 km and 2290 tons, respectively. Furthermore, the study estimates the ecological damage prevented and the environmental effect of each option. Quantitative risk assessments, conducted through sensitivity analysis, reveal that the fourth option, involving the conversion of drilling waste into construction materials, emerges as the most economically feasible. The study also evaluates the interaction between business and government and analyzes the current situation in the sphere of drilling-waste management, concluding with concise recommendations for both companies and official bodies.
{"title":"Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study","authors":"Andrey Lebedev, Alexey Cherepovitsyn","doi":"10.3390/resources13020026","DOIUrl":"https://doi.org/10.3390/resources13020026","url":null,"abstract":"Drilling-waste management is of great importance in the oil and gas industry due to the substantial volume of multi-component waste generated during the production process. Improper waste handling can pose serious environmental risks, including soil and water contamination and the release of harmful chemicals. Failure to properly manage waste can result in large fines and legal consequences, as well as damage to corporate reputation. Proper drilling-waste management is essential to mitigate these risks and ensure the sustainable and responsible operation of oil and gas projects. It involves the use of advanced technologies and best practices to treat and utilize drilling waste in an environmentally safe and cost-effective manner. This article describes a feasibility study of four drilling-waste management options in the context of the Khanty-Mansi Autonomous Okrug of Russia. For ten years of the project life, the NPV under the base scenario is equal to RUB −3374.3 million, under the first scenario is equal to RUB −1466.7 million, under the second scenario is equal to RUB −1666.8 million and under the third scenario is equal to RUB −792.4 million. When considering projects, regardless of oil production, the project under the third scenario pays off in 7.8 years and the NPV is RUB 7.04 million. The MCD and MCV parameters were calculated to be 106 km and 2290 tons, respectively. Furthermore, the study estimates the ecological damage prevented and the environmental effect of each option. Quantitative risk assessments, conducted through sensitivity analysis, reveal that the fourth option, involving the conversion of drilling waste into construction materials, emerges as the most economically feasible. The study also evaluates the interaction between business and government and analyzes the current situation in the sphere of drilling-waste management, concluding with concise recommendations for both companies and official bodies.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139863997","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}
Pub Date : 2024-02-02DOI: 10.3390/resources13020023
P. Migoń, E. Pijet-Migoń
Geoparks are territorial organizations, whose primary aim is to foster sustainable local development through the promotion of geoheritage, geotourism and geoeducation. Sites of significant interest from the perspective of geosciences (geosites), as well as the overall geodiversity of the territory, are the fundamental resources for geopark activities. The distribution of these resources in the geographical space of geoparks may, however, be uneven. We first review four cases of UNESCO Global Geoparks from different European countries (Czechia, Germany, Hungary, Portugal) where such a situation occurs, with consequences on tourism development. Then, we place particular focus on an aspiring geopark of the Land of Extinct Volcanoes in SW Poland, providing evidence of its geoheritage and geodiversity values. The aspiring geopark integrates a mountainous–upland terrain and a lowland part, the latter with much fewer sites of interest and, apparently, fewer opportunities to successfully develop geotourism. Recognizing the challenges emerging from the non-uniform distribution of resources and learning from established geoparks, we highlight various opportunities to encourage (geo)tourism in the less diverse sections of the geoparks. Implementation of the ABC (abiotic–biotic–cultural) concept could be particularly helpful, as could be various events organized in these areas.
{"title":"Non-Uniform Distribution of Geoheritage Resources in Geoparks—Problems, Challenges and Opportunities","authors":"P. Migoń, E. Pijet-Migoń","doi":"10.3390/resources13020023","DOIUrl":"https://doi.org/10.3390/resources13020023","url":null,"abstract":"Geoparks are territorial organizations, whose primary aim is to foster sustainable local development through the promotion of geoheritage, geotourism and geoeducation. Sites of significant interest from the perspective of geosciences (geosites), as well as the overall geodiversity of the territory, are the fundamental resources for geopark activities. The distribution of these resources in the geographical space of geoparks may, however, be uneven. We first review four cases of UNESCO Global Geoparks from different European countries (Czechia, Germany, Hungary, Portugal) where such a situation occurs, with consequences on tourism development. Then, we place particular focus on an aspiring geopark of the Land of Extinct Volcanoes in SW Poland, providing evidence of its geoheritage and geodiversity values. The aspiring geopark integrates a mountainous–upland terrain and a lowland part, the latter with much fewer sites of interest and, apparently, fewer opportunities to successfully develop geotourism. Recognizing the challenges emerging from the non-uniform distribution of resources and learning from established geoparks, we highlight various opportunities to encourage (geo)tourism in the less diverse sections of the geoparks. Implementation of the ABC (abiotic–biotic–cultural) concept could be particularly helpful, as could be various events organized in these areas.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139870901","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}
Pub Date : 2024-02-02DOI: 10.3390/resources13020023
P. Migoń, E. Pijet-Migoń
Geoparks are territorial organizations, whose primary aim is to foster sustainable local development through the promotion of geoheritage, geotourism and geoeducation. Sites of significant interest from the perspective of geosciences (geosites), as well as the overall geodiversity of the territory, are the fundamental resources for geopark activities. The distribution of these resources in the geographical space of geoparks may, however, be uneven. We first review four cases of UNESCO Global Geoparks from different European countries (Czechia, Germany, Hungary, Portugal) where such a situation occurs, with consequences on tourism development. Then, we place particular focus on an aspiring geopark of the Land of Extinct Volcanoes in SW Poland, providing evidence of its geoheritage and geodiversity values. The aspiring geopark integrates a mountainous–upland terrain and a lowland part, the latter with much fewer sites of interest and, apparently, fewer opportunities to successfully develop geotourism. Recognizing the challenges emerging from the non-uniform distribution of resources and learning from established geoparks, we highlight various opportunities to encourage (geo)tourism in the less diverse sections of the geoparks. Implementation of the ABC (abiotic–biotic–cultural) concept could be particularly helpful, as could be various events organized in these areas.
{"title":"Non-Uniform Distribution of Geoheritage Resources in Geoparks—Problems, Challenges and Opportunities","authors":"P. Migoń, E. Pijet-Migoń","doi":"10.3390/resources13020023","DOIUrl":"https://doi.org/10.3390/resources13020023","url":null,"abstract":"Geoparks are territorial organizations, whose primary aim is to foster sustainable local development through the promotion of geoheritage, geotourism and geoeducation. Sites of significant interest from the perspective of geosciences (geosites), as well as the overall geodiversity of the territory, are the fundamental resources for geopark activities. The distribution of these resources in the geographical space of geoparks may, however, be uneven. We first review four cases of UNESCO Global Geoparks from different European countries (Czechia, Germany, Hungary, Portugal) where such a situation occurs, with consequences on tourism development. Then, we place particular focus on an aspiring geopark of the Land of Extinct Volcanoes in SW Poland, providing evidence of its geoheritage and geodiversity values. The aspiring geopark integrates a mountainous–upland terrain and a lowland part, the latter with much fewer sites of interest and, apparently, fewer opportunities to successfully develop geotourism. Recognizing the challenges emerging from the non-uniform distribution of resources and learning from established geoparks, we highlight various opportunities to encourage (geo)tourism in the less diverse sections of the geoparks. Implementation of the ABC (abiotic–biotic–cultural) concept could be particularly helpful, as could be various events organized in these areas.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139811073","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}
Pub Date : 2024-02-01DOI: 10.3390/resources13020022
Jacqueline de Almeida Barbosa Franco, Ary Franco Junior, R. Battistelle, Barbara Stolte Bezerra
This paper examines the role of dynamic capabilities as resources for achieving environmental sustainability, economic sustainability, and corporate social responsibility within the pillars of the Sustainable Development Goals. Economic growth and technological progress, while driving societal advancements, have also contributed to challenges such as inefficient resource utilization, social inequality, climate change, and unsustainable production. Through an integrative review, the paper identifies sixteen dynamic capabilities incorporated into a business framework. These capabilities aim to support environmental and economic sustainability, along with corporate social responsibility in line with the Sustainable Development Goals. The paper emphasizes opportunities for companies and academia to adopt sustainable practices. This contribution aims to advance the broader objective of sustainable development by promoting a balance between societal progress and responsible resource management.
{"title":"Dynamic Capabilities: Unveiling Key Resources for Environmental Sustainability and Economic Sustainability, and Corporate Social Responsibility towards Sustainable Development Goals","authors":"Jacqueline de Almeida Barbosa Franco, Ary Franco Junior, R. Battistelle, Barbara Stolte Bezerra","doi":"10.3390/resources13020022","DOIUrl":"https://doi.org/10.3390/resources13020022","url":null,"abstract":"This paper examines the role of dynamic capabilities as resources for achieving environmental sustainability, economic sustainability, and corporate social responsibility within the pillars of the Sustainable Development Goals. Economic growth and technological progress, while driving societal advancements, have also contributed to challenges such as inefficient resource utilization, social inequality, climate change, and unsustainable production. Through an integrative review, the paper identifies sixteen dynamic capabilities incorporated into a business framework. These capabilities aim to support environmental and economic sustainability, along with corporate social responsibility in line with the Sustainable Development Goals. The paper emphasizes opportunities for companies and academia to adopt sustainable practices. This contribution aims to advance the broader objective of sustainable development by promoting a balance between societal progress and responsible resource management.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139886580","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}
Pub Date : 2024-02-01DOI: 10.3390/resources13020022
Jacqueline de Almeida Barbosa Franco, Ary Franco Junior, R. Battistelle, Barbara Stolte Bezerra
This paper examines the role of dynamic capabilities as resources for achieving environmental sustainability, economic sustainability, and corporate social responsibility within the pillars of the Sustainable Development Goals. Economic growth and technological progress, while driving societal advancements, have also contributed to challenges such as inefficient resource utilization, social inequality, climate change, and unsustainable production. Through an integrative review, the paper identifies sixteen dynamic capabilities incorporated into a business framework. These capabilities aim to support environmental and economic sustainability, along with corporate social responsibility in line with the Sustainable Development Goals. The paper emphasizes opportunities for companies and academia to adopt sustainable practices. This contribution aims to advance the broader objective of sustainable development by promoting a balance between societal progress and responsible resource management.
{"title":"Dynamic Capabilities: Unveiling Key Resources for Environmental Sustainability and Economic Sustainability, and Corporate Social Responsibility towards Sustainable Development Goals","authors":"Jacqueline de Almeida Barbosa Franco, Ary Franco Junior, R. Battistelle, Barbara Stolte Bezerra","doi":"10.3390/resources13020022","DOIUrl":"https://doi.org/10.3390/resources13020022","url":null,"abstract":"This paper examines the role of dynamic capabilities as resources for achieving environmental sustainability, economic sustainability, and corporate social responsibility within the pillars of the Sustainable Development Goals. Economic growth and technological progress, while driving societal advancements, have also contributed to challenges such as inefficient resource utilization, social inequality, climate change, and unsustainable production. Through an integrative review, the paper identifies sixteen dynamic capabilities incorporated into a business framework. These capabilities aim to support environmental and economic sustainability, along with corporate social responsibility in line with the Sustainable Development Goals. The paper emphasizes opportunities for companies and academia to adopt sustainable practices. This contribution aims to advance the broader objective of sustainable development by promoting a balance between societal progress and responsible resource management.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139826758","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}
Pub Date : 2024-01-31DOI: 10.3390/resources13020021
Lorena Torres Albarracin, Irina Ramirez Mas, L. Fuess, R. P. Rodriguez, M. P. C. Volpi, Bruna de Souza Moraes
Coffee processing generates a large amount of organic waste, which has the potential for energy use through biogas production. Although Brazil dominates world coffee production, treating its residue with biogas technology is not a practice, especially due to this product’s seasonality, which hampers continuous digester operation. The implementation of biogas production from coffee residues in a concept of industrial symbiosis could overcome this. This work evaluates the biogas energy potential from the main liquid residues of coffee processing (i.e., mucilage and wash water) and their integration with glycerin and cattle manure. Around 2773 m3 biogas day−1 would be produced (75% CH4), used as biomethane (734 thousand m3 year−1), or thermal energy (23,000,000 MJ year−1), or electricity (2718 MWh year−1), which could supply, respectively, all the liquefied petroleum gas (LPG) and diesel demands of the farm, all the thermal energy demands of the grain drying process, as well as electricity for 30 residences. Considering the short coffee season, the results have a broader context for the application of biogas production on coffee processing farms, envisaging that the Agroindustrial Eco-Park concept has the potential to integrate various agroindustrial sectors for energy production, residue exchange, and water recirculation.
{"title":"The Bioenergetic Potential from Coffee Processing Residues: Towards an Industrial Symbiosis","authors":"Lorena Torres Albarracin, Irina Ramirez Mas, L. Fuess, R. P. Rodriguez, M. P. C. Volpi, Bruna de Souza Moraes","doi":"10.3390/resources13020021","DOIUrl":"https://doi.org/10.3390/resources13020021","url":null,"abstract":"Coffee processing generates a large amount of organic waste, which has the potential for energy use through biogas production. Although Brazil dominates world coffee production, treating its residue with biogas technology is not a practice, especially due to this product’s seasonality, which hampers continuous digester operation. The implementation of biogas production from coffee residues in a concept of industrial symbiosis could overcome this. This work evaluates the biogas energy potential from the main liquid residues of coffee processing (i.e., mucilage and wash water) and their integration with glycerin and cattle manure. Around 2773 m3 biogas day−1 would be produced (75% CH4), used as biomethane (734 thousand m3 year−1), or thermal energy (23,000,000 MJ year−1), or electricity (2718 MWh year−1), which could supply, respectively, all the liquefied petroleum gas (LPG) and diesel demands of the farm, all the thermal energy demands of the grain drying process, as well as electricity for 30 residences. Considering the short coffee season, the results have a broader context for the application of biogas production on coffee processing farms, envisaging that the Agroindustrial Eco-Park concept has the potential to integrate various agroindustrial sectors for energy production, residue exchange, and water recirculation.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140479890","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}
Pub Date : 2024-01-29DOI: 10.3390/resources13020020
Nara Michi de Faria Ishikiriyama, Isabele Policarpo da Silveira, Joyce Viana Silva, Beatriz Pereira de Freitas, C. N. Kunigami, E. P. Jung, L. O. Ribeiro
This study aimed to recover carotenoids from banana peel by employing a solid-liquid extraction using soybean oil as a green solvent. The oil with the highest total carotenoid content was evaluated for storage stability (30 °C/90 days) and thermal processing (100 and 200 °C/1–2 h). The results for changing temperature (33–67 °C), solid-liquid ratio (1:6–1:74 w/w), and agitation (132–468 rpm) were combined to evaluate the recovery of carotenoids from banana peel in extractions performed for 1 h. The highest total carotenoid concentration obtained from banana peel with 13% residual moisture was 756 µg of β-carotene/mL of oil at 50 °C with a solid-liquid ratio of 1:6 and 300 rpm agitation, resulting in a 55% recovery, which is superior to the extraction using acetone as the solvent (50%). Nutritionally, the carotenoid-rich oil can substantially increase vitamin A intake since a 13-mL serving can correspond to 63–117% of the daily intake of vitamin A for different groups. Regarding storage, no differences were observed in the fatty acid profile of the carotenoid-rich oil and the control (pure soybean oil) after 90 days (p > 0.05). The fatty acid profile also remained the same after thermal processing, regardless of temperature and exposure time, except for linolenic acid. 84% retention of total carotenoids was observed after storage. For thermal processing at 100 and 200 °C, regardless of the processing time, a 91 and 31% retention were observed, respectively. Therefore, the use of banana peel as a raw material to obtain carotenoids using soybean oil as a green solvent can add value to production chains, and it is aligned with Sustainable Development Goals 2 and 12 of the UN 2030 Agenda, which aims to end hunger, achieve food security, promote sustainable agriculture and ensure sustainable consumption and production patterns, respectively.
{"title":"Soybean Oil as a Green Solvent for the Recovery of Carotenoids from Banana Peel: Evaluation of the Storage and Processing on Final Product","authors":"Nara Michi de Faria Ishikiriyama, Isabele Policarpo da Silveira, Joyce Viana Silva, Beatriz Pereira de Freitas, C. N. Kunigami, E. P. Jung, L. O. Ribeiro","doi":"10.3390/resources13020020","DOIUrl":"https://doi.org/10.3390/resources13020020","url":null,"abstract":"This study aimed to recover carotenoids from banana peel by employing a solid-liquid extraction using soybean oil as a green solvent. The oil with the highest total carotenoid content was evaluated for storage stability (30 °C/90 days) and thermal processing (100 and 200 °C/1–2 h). The results for changing temperature (33–67 °C), solid-liquid ratio (1:6–1:74 w/w), and agitation (132–468 rpm) were combined to evaluate the recovery of carotenoids from banana peel in extractions performed for 1 h. The highest total carotenoid concentration obtained from banana peel with 13% residual moisture was 756 µg of β-carotene/mL of oil at 50 °C with a solid-liquid ratio of 1:6 and 300 rpm agitation, resulting in a 55% recovery, which is superior to the extraction using acetone as the solvent (50%). Nutritionally, the carotenoid-rich oil can substantially increase vitamin A intake since a 13-mL serving can correspond to 63–117% of the daily intake of vitamin A for different groups. Regarding storage, no differences were observed in the fatty acid profile of the carotenoid-rich oil and the control (pure soybean oil) after 90 days (p > 0.05). The fatty acid profile also remained the same after thermal processing, regardless of temperature and exposure time, except for linolenic acid. 84% retention of total carotenoids was observed after storage. For thermal processing at 100 and 200 °C, regardless of the processing time, a 91 and 31% retention were observed, respectively. Therefore, the use of banana peel as a raw material to obtain carotenoids using soybean oil as a green solvent can add value to production chains, and it is aligned with Sustainable Development Goals 2 and 12 of the UN 2030 Agenda, which aims to end hunger, achieve food security, promote sustainable agriculture and ensure sustainable consumption and production patterns, respectively.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140487083","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}
Pub Date : 2023-12-21DOI: 10.3390/resources13010002
H. Syaeful, R. C. Ciputra, Tyto Baskara Adimedha, A. Sumaryanto, I. Sukadana, F. D. Indrastomo, F. Pratiwi, Sucipta Sucipta, Hendra Adhi Pratama, D. Mustika, K. Widana, Susilo Widodo, Muhammad Burhannudinnur, I. Syafri, B. Sutopo
Radiometric mapping could play a prominent role in locating the host rock or alteration that leads to gold mineralization. Nevertheless, in low-sulfidation epithermal gold deposits, the radiometric signatures have to be priorly characterized due to their geometry. It is comprised of a small ore vein system within the large alteration zones. The Pongkor gold mine is a low-sulfidation epithermal deposit and was selected for this purpose. The method started with the surface identification of radiometric signatures on altered and unaltered rocks near Pongkor using portable spectrometers. They are followed by the characterization of the underground mining front, which is comprised of different types of veins and host rocks. The results show that the altered rocks were characterized by a high K% and a low eTh/K ratio. Vice versa, the mineralized veins show low radioelement concentrations. Following the characterization of the geometry of alteration zones and mineralized veins, a study of the relationship between radioelements detected by radiometric mapping and gold pathfinder elements was conducted. Gold pathfinders of Mn, Fe, Zn, As, and Pb were selected for correlation studies with the radioelement. The pathfinders and radioelements were more significantly correlated in veins compared to the host rock. Based on this study, radiometric mapping has the potential and benefit of being applied in the exploration of low-sulfidation epithermal gold deposits. An alteration zone could be delineated by K or eTh/K as an anomaly indicator, and the vein bodies could also be delineated using low K or eTh as an anomaly indicator.
辐射测绘可在确定导致金矿化的母岩或蚀变层位置方面发挥重要作用。然而，在低硫化热液型金矿床中，由于其几何形状，必须事先确定辐射特征。它由大型蚀变带中的小型矿脉系统组成。Pongkor 金矿属于低硫化热液型矿床，因此被选中用于这一目的。该方法首先使用便携式光谱仪对 Pongkor 附近蚀变和未蚀变岩石的辐射特征进行地表识别。随后对由不同类型的矿脉和主岩组成的地下采矿前沿进行了特征描述。结果表明，蚀变岩的特征是高 K%和低 eTh/K 比率。反之亦然，矿化矿脉的放射性元素浓度较低。在确定了蚀变带和矿化矿脉的几何特征之后，对辐射测绘探测到的放射性元素与金探路元素之间的关系进行了研究。选择了 Mn、Fe、Zn、As 和 Pb 等金探路元素与放射性元素进行相关性研究。与主岩相比，矿脉中的探路元素与放射性元素的相关性更为明显。根据这项研究，放射性测绘具有应用于低硫化热液型金矿床勘探的潜力和益处。可以用 K 或 eTh/K 作为异常指标来划分蚀变带，也可以用低 K 或 eTh 作为异常指标来划分矿脉体。
{"title":"Radiometric Signatures of Gold Mineralization Zone in Pongkor, West Java, Indonesia: A Baseline for Radiometric Mapping Application on Low-Sulfidation Epithermal Deposit","authors":"H. Syaeful, R. C. Ciputra, Tyto Baskara Adimedha, A. Sumaryanto, I. Sukadana, F. D. Indrastomo, F. Pratiwi, Sucipta Sucipta, Hendra Adhi Pratama, D. Mustika, K. Widana, Susilo Widodo, Muhammad Burhannudinnur, I. Syafri, B. Sutopo","doi":"10.3390/resources13010002","DOIUrl":"https://doi.org/10.3390/resources13010002","url":null,"abstract":"Radiometric mapping could play a prominent role in locating the host rock or alteration that leads to gold mineralization. Nevertheless, in low-sulfidation epithermal gold deposits, the radiometric signatures have to be priorly characterized due to their geometry. It is comprised of a small ore vein system within the large alteration zones. The Pongkor gold mine is a low-sulfidation epithermal deposit and was selected for this purpose. The method started with the surface identification of radiometric signatures on altered and unaltered rocks near Pongkor using portable spectrometers. They are followed by the characterization of the underground mining front, which is comprised of different types of veins and host rocks. The results show that the altered rocks were characterized by a high K% and a low eTh/K ratio. Vice versa, the mineralized veins show low radioelement concentrations. Following the characterization of the geometry of alteration zones and mineralized veins, a study of the relationship between radioelements detected by radiometric mapping and gold pathfinder elements was conducted. Gold pathfinders of Mn, Fe, Zn, As, and Pb were selected for correlation studies with the radioelement. The pathfinders and radioelements were more significantly correlated in veins compared to the host rock. Based on this study, radiometric mapping has the potential and benefit of being applied in the exploration of low-sulfidation epithermal gold deposits. An alteration zone could be delineated by K or eTh/K as an anomaly indicator, and the vein bodies could also be delineated using low K or eTh as an anomaly indicator.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138952297","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}
Pub Date : 2023-12-21DOI: 10.3390/resources13010003
S. Betancur, N. Ortega-Avila, Erick César López-Vidaña
Colombia has made different efforts to contribute to fulfilling its international commitments to curb climate change by reducing emissions and promoting technological development and project financing. However, the existing policies and regulatory framework primarily focus on promoting the photovoltaic industry for electricity production. Likewise, the energy sector has neglected the potential of solar thermal energy as a heat source. In this sense, it is necessary to redouble efforts through new public policies that integrate solar thermal energy in the residential and productive sectors. Using solar thermal energy for heating can contribute to the energy transition and meet its sustainable development goals. Therefore, the main objective of this work was to analyze Strengths, Weaknesses, Opportunities, and Threats to determine the potential application of thermal solar heat in Colombia while considering the local context. Factors such as their environmental conditions, policies, and regulations; the existence of international agreements; and their political status in general were analyzed. The analysis revealed Colombia’s significant solar heat potential, enabling over 1.3 million cold-climate households to access hot water or reduce firewood use. Industrially, applying solar heat in 5% of the current industry could decrease fossil fuel consumption by 13 PJ. The findings highlight that Colombia’s potential in thermal solar energy necessitates collaborative efforts, legislative reinforcement, climate-adaptive measures, and the resolution of political and social challenges.
{"title":"Strengths, Weaknesses, Opportunities, and Threats Analysis for the Strengthening of Solar Thermal Energy in Colombia","authors":"S. Betancur, N. Ortega-Avila, Erick César López-Vidaña","doi":"10.3390/resources13010003","DOIUrl":"https://doi.org/10.3390/resources13010003","url":null,"abstract":"Colombia has made different efforts to contribute to fulfilling its international commitments to curb climate change by reducing emissions and promoting technological development and project financing. However, the existing policies and regulatory framework primarily focus on promoting the photovoltaic industry for electricity production. Likewise, the energy sector has neglected the potential of solar thermal energy as a heat source. In this sense, it is necessary to redouble efforts through new public policies that integrate solar thermal energy in the residential and productive sectors. Using solar thermal energy for heating can contribute to the energy transition and meet its sustainable development goals. Therefore, the main objective of this work was to analyze Strengths, Weaknesses, Opportunities, and Threats to determine the potential application of thermal solar heat in Colombia while considering the local context. Factors such as their environmental conditions, policies, and regulations; the existence of international agreements; and their political status in general were analyzed. The analysis revealed Colombia’s significant solar heat potential, enabling over 1.3 million cold-climate households to access hot water or reduce firewood use. Industrially, applying solar heat in 5% of the current industry could decrease fossil fuel consumption by 13 PJ. The findings highlight that Colombia’s potential in thermal solar energy necessitates collaborative efforts, legislative reinforcement, climate-adaptive measures, and the resolution of political and social challenges.","PeriodicalId":37723,"journal":{"name":"Resources","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138950273","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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