Italo Emmanoel Mesquita Oliveira de Moura, Elaine Aparecida da Silva
Disinfectants are essential products for reducing health risks, but they also have significant environmental impacts. This study assessed the Eco‐efficiency of disinfectants based on the NBR ISO 14045:2014. Primary data were collected from Brazilian producers, while secondary data were obtained from patents and the Ecoinvent database. The system boundaries encompassed cradle‐to‐consumer use. The selling price was adopted as the product system value indicator (economic analysis). Raw materials production had the greatest impact on the environmental performance of disinfectants A (Antibacterial, surfactant and preservative) and C (Antibacterial, surfactant and opacifier). Disinfectant B, in addition to raw materials production (Antibacterial, opacifier and surfactant), also experienced significant impacts from consumer transport. These critical processes represent more than 60% of the overall impacts in both categories. The Eco‐efficiency matrix (profile) related environmental and economic indicators. All disinfectants occupied quadrants three or four, indicating high impact on the environmental categories. Disinfectant C had the highest Eco‐efficiency while disinfectant B had the lowest, mainly due to its product system value. Sensitivity analysis indicated environmentally viable changes in the products' composition, such as replacing the antibacterial, surfactant, preservative, and opacifier. Energy and water consumption did not significantly impact the assessed products.
消毒剂是降低健康风险的基本产品，但对环境也有重大影响。本研究根据 NBR ISO 14045:2014 评估了消毒剂的生态效益。原始数据收集自巴西生产商，二手数据则来自专利和 Ecoinvent 数据库。系统边界包括从摇篮到消费者的使用过程。采用销售价格作为产品系统价值指标（经济分析）。原材料生产对消毒剂 A（抗菌剂、表面活性剂和防腐剂）和 C（抗菌剂、表面活性剂和不透明剂）的环境绩效影响最大。消毒剂 B 除了原材料生产（抗菌剂、不透明剂和表面活性剂）外，消费者运输也对其产生了重大影响。这些关键工序占两类产品总体影响的 60% 以上。生态效益矩阵（概况）涉及环境和经济指标。所有消毒剂都占据了第三或第四象限，表明对环境类别的影响较大。消毒剂 C 的生态效益最高，而消毒剂 B 的生态效益最低，主要是由于其产品系统价值。敏感性分析表明，改变产品成分对环境是可行的，例如更换抗菌剂、表面活性剂、防腐剂和不透明剂。能耗和水耗对所评估的产品没有重大影响。
{"title":"Eco‐efficiency improvement strategies for disinfectants","authors":"Italo Emmanoel Mesquita Oliveira de Moura, Elaine Aparecida da Silva","doi":"10.1002/ep.14478","DOIUrl":"https://doi.org/10.1002/ep.14478","url":null,"abstract":"Disinfectants are essential products for reducing health risks, but they also have significant environmental impacts. This study assessed the Eco‐efficiency of disinfectants based on the NBR ISO 14045:2014. Primary data were collected from Brazilian producers, while secondary data were obtained from patents and the Ecoinvent database. The system boundaries encompassed cradle‐to‐consumer use. The selling price was adopted as the product system value indicator (economic analysis). Raw materials production had the greatest impact on the environmental performance of disinfectants A (Antibacterial, surfactant and preservative) and C (Antibacterial, surfactant and opacifier). Disinfectant B, in addition to raw materials production (Antibacterial, opacifier and surfactant), also experienced significant impacts from consumer transport. These critical processes represent more than 60% of the overall impacts in both categories. The Eco‐efficiency matrix (profile) related environmental and economic indicators. All disinfectants occupied quadrants three or four, indicating high impact on the environmental categories. Disinfectant C had the highest Eco‐efficiency while disinfectant B had the lowest, mainly due to its product system value. Sensitivity analysis indicated environmentally viable changes in the products' composition, such as replacing the antibacterial, surfactant, preservative, and opacifier. Energy and water consumption did not significantly impact the assessed products.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Issue Information - Info for Authors","authors":"","doi":"10.1002/ep.14424","DOIUrl":"10.1002/ep.14424","url":null,"abstract":"","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ep.14424","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Issue Information - Cover and Table of Contents","authors":"","doi":"10.1002/ep.14181","DOIUrl":"10.1002/ep.14181","url":null,"abstract":"","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ep.14181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present study accentuate the noteworthiness of ongoing research in evolving sustainable sugarcane juice evaporation technologies to help the non‐centrifugal sugar (NCS) industry. Concentrated sugarcane juice (CSJ) is the raw material for the production of variety of value added products. A stepped solar still (SSS) could be one of the inexpensive solutions to evaporate water from sugarcane juice. In this study, a SSS having internal and external reflectors (SSS‐IR‐ER) is tested at 25 mL/min of sugarcane juice for obtaining CSJ. The thermo‐enviro‐economic performance of SSS‐IR‐ER unit is compared with SSS and SSS‐IR (SSS having internal reflectors) units. The final brix content (oB) of the CSJ obtained from SSS‐IR‐ER is found to be maximum (20.7 oB) which is respectively, 16.90% and 7.25% higher than those of SSS and SSS‐IR units. The total distillate output (condensate) and heat transfer coefficients show similar trends as that of brix values, which proves thermal dominance of SSS‐IR‐ER unit. For SSS‐IR‐ER, the convective and evaporative heat transfer coefficients were found to be maximum as 3.89 and 73.78 W/m2°C, respectively. The average values of energy and exergy efficiencies for SSS‐IR‐ER were, respectively, evaluated as 55.25% and 2.7% which were also observed maximum among the tested units. SSS‐IR‐ER also found to command in environmental and economic aspects with maximum values of total productive cost ($0.218), CO2 mitigation (14.93 tonnes) and carbon credit earned ($186.73). It is inferred that SSS‐IR‐ER is more economical and thermally efficient than SSS and SSS‐IR units.
{"title":"Experimental study on stepped solar still equipped with reflectors for the concentration of sugarcane juice","authors":"Rahul Grewal, Mahesh Kumar, Ashok Chaudhary, Pankaj Yadav","doi":"10.1002/ep.14477","DOIUrl":"https://doi.org/10.1002/ep.14477","url":null,"abstract":"The present study accentuate the noteworthiness of ongoing research in evolving sustainable sugarcane juice evaporation technologies to help the non‐centrifugal sugar (NCS) industry. Concentrated sugarcane juice (CSJ) is the raw material for the production of variety of value added products. A stepped solar still (SSS) could be one of the inexpensive solutions to evaporate water from sugarcane juice. In this study, a SSS having internal and external reflectors (SSS‐IR‐ER) is tested at 25 mL/min of sugarcane juice for obtaining CSJ. The thermo‐enviro‐economic performance of SSS‐IR‐ER unit is compared with SSS and SSS‐IR (SSS having internal reflectors) units. The final brix content (<jats:sup>o</jats:sup>B) of the CSJ obtained from SSS‐IR‐ER is found to be maximum (20.7 <jats:sup>o</jats:sup>B) which is respectively, 16.90% and 7.25% higher than those of SSS and SSS‐IR units. The total distillate output (condensate) and heat transfer coefficients show similar trends as that of brix values, which proves thermal dominance of SSS‐IR‐ER unit. For SSS‐IR‐ER, the convective and evaporative heat transfer coefficients were found to be maximum as 3.89 and 73.78 W/m<jats:sup>2</jats:sup>°C, respectively. The average values of energy and exergy efficiencies for SSS‐IR‐ER were, respectively, evaluated as 55.25% and 2.7% which were also observed maximum among the tested units. SSS‐IR‐ER also found to command in environmental and economic aspects with maximum values of total productive cost ($0.218), CO<jats:sub>2</jats:sub> mitigation (14.93 tonnes) and carbon credit earned ($186.73). It is inferred that SSS‐IR‐ER is more economical and thermally efficient than SSS and SSS‐IR units.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The application of a novel composite MIL88A(Fe)/TiO2 for phenol removal in a new hexagonal photoreactor design was investigated. The unique hexagonal shape of the reactor increases the surface area available for irradiation, leading to more efficient removal of contaminants. The composite was characterized using X ray diffraction (XRD), Fourier transform‐infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) images to determine its properties. Photocatalyst dosage, reaction time, phenol concentration, pH, and mL H2O2/L PW (phenol wastewater) were chosen as effective parameters on the process. To plan an experiment and maximize phenol removal, the response surface methodology (RSM) was applied. Ideal conditions for optimum efficiency (95.96%) include initial phenol concentration of 58 mg/L, pH of 7.51, reaction time of 68.61 min, mL H2O2/L PW of 0.18, and catalyst dosage of 0.4 g/L PW. Trapping experiments prove that ˙O2 and ˙OH produced in Fenton and photocatalytic processes are the predominant active radicals in this process. The kinetics was fitted with the first‐order, second‐order, n‐order, and Langmuir–Hinshelwood models using nonlinear least squares techniques. The n‐order model with n = 0.54 was found to be the most suitable model (R2 0.998), with a model constant of k = 0.11 (mol0.46/L0.46.s).
{"title":"A study on the application of a composite MIL88A(Fe)/TiO2 in a hexagonal photoreactor for phenol removal: Response surface methodology and kinetic modeling","authors":"Mehrazin Nikseresht, Davood Iranshahi, Alireza Badiei","doi":"10.1002/ep.14462","DOIUrl":"https://doi.org/10.1002/ep.14462","url":null,"abstract":"The application of a novel composite MIL88A(Fe)/TiO<jats:sub>2</jats:sub> for phenol removal in a new hexagonal photoreactor design was investigated. The unique hexagonal shape of the reactor increases the surface area available for irradiation, leading to more efficient removal of contaminants. The composite was characterized using X ray diffraction (XRD), Fourier transform‐infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) images to determine its properties. Photocatalyst dosage, reaction time, phenol concentration, pH, and mL H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>/L PW (phenol wastewater) were chosen as effective parameters on the process. To plan an experiment and maximize phenol removal, the response surface methodology (RSM) was applied. Ideal conditions for optimum efficiency (95.96%) include initial phenol concentration of 58 mg/L, pH of 7.51, reaction time of 68.61 min, mL H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>/L PW of 0.18, and catalyst dosage of 0.4 g/L PW. Trapping experiments prove that ˙O<jats:sub>2</jats:sub> and ˙OH produced in Fenton and photocatalytic processes are the predominant active radicals in this process. The kinetics was fitted with the first‐order, second‐order, <jats:italic>n</jats:italic>‐order, and Langmuir–Hinshelwood models using nonlinear least squares techniques. The <jats:italic>n</jats:italic>‐order model with <jats:italic>n</jats:italic> = 0.54 was found to be the most suitable model (<jats:italic>R</jats:italic><jats:sup>2</jats:sup> 0.998), with a model constant of <jats:italic>k</jats:italic> = 0.11 (mol<jats:sup>0.46</jats:sup>/L<jats:sup>0.46</jats:sup>.s).","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohamed Rabia, Asmaa M. Elsayed, Eman Aldosari, Ahmed Adel A. Abdelazeez
A promising optoelectronic device for light sensing in both the UV and Vis regions is fabricated. This device consists of a nanocomposite resembling coral reefs, termed AgI/polypyrrole‐iodide (AgI/Ppy‐I). The resulting nanocomposite exhibits a hierarchical structure wherein larger particles, comprising smaller particles ~45 nm and an optical bandgap measuring 2.4 eV, form a coral reef‐like morphology. The sensitivity estimation of this constructed optoelectronic device relies on evaluating the current density (Jph) values. Under illumination, a remarkable augmentation in current density (Jph = 0.46 mA cm−2) with a promising value compared to the dark condition's 0.12 mA cm−2. The optical characteristics of this nanocomposite make it highly conducive to efficient UV–Vis light sensing. The values of D (detectivity), reflecting the device's sensitivity, are notably high at 4 × 108 and 3.82 × 108 Jones in the UV and Vis regions, correspondingly. The potential of this photodetector is reinforced by the computed R‐values, which denote the device's responsivity. With values of 1.8 and 1.72 mA W−1 across these two optical regions, correspondingly, it showcases the nanocomposite's effectiveness in transforming incident light into electrical current. Moreover, the appeal of this photodetector extends beyond its performance characteristics. Its cost‐effectiveness, eco‐friendliness, straightforward preparation methodology, scalability for mass production, and high stability collectively. The versatility of this material, coupled with its advantageous attributes, opens avenues for its widespread application, catering to the diverse needs of industries and contributing to the accessibility of efficient optoelectronic devices for a broader audience.
我们制造出了一种用于紫外线和可见光区域光感应的前景广阔的光电设备。该器件由一种类似珊瑚礁的纳米复合材料组成，称为 AgI/聚吡咯-碘化物（AgI/Ppy-I）。由此产生的纳米复合材料呈现出一种分层结构，其中较大的颗粒由约 45 nm 的较小颗粒组成，光带隙为 2.4 eV，形成类似珊瑚礁的形态。对这种构建的光电器件的灵敏度估计依赖于对电流密度（Jph）值的评估。在光照条件下，电流密度（Jph = 0.46 mA cm-2）明显增加，与黑暗条件下的 0.12 mA cm-2 相比，其值很有希望。这种纳米复合材料的光学特性非常有利于实现高效的紫外可见光传感。在紫外区和可见光区，反映器件灵敏度的 D 值（检测率）分别高达 4 × 108 琼斯和 3.82 × 108 琼斯。计算得出的 R 值（表示器件的响应度）进一步证实了这种光电探测器的潜力。这两个光学区域的响应值分别为 1.8 mA W-1 和 1.72 mA W-1，这表明纳米复合材料能有效地将入射光转化为电流。此外，这种光电探测器的吸引力还不止于其性能特点。它具有成本效益、环保、制备方法简单、可大规模生产以及高稳定性等特点。这种材料的多功能性加上其优势特性，为其广泛应用开辟了道路，满足了各行各业的不同需求，并有助于为更多人提供高效的光电设备。
{"title":"Coral reefs‐like shape AgI/polypyrrole nanocomposite through the intercalation of iodide ions in the network for optoelectronic applications","authors":"Mohamed Rabia, Asmaa M. Elsayed, Eman Aldosari, Ahmed Adel A. Abdelazeez","doi":"10.1002/ep.14475","DOIUrl":"https://doi.org/10.1002/ep.14475","url":null,"abstract":"A promising optoelectronic device for light sensing in both the UV and Vis regions is fabricated. This device consists of a nanocomposite resembling coral reefs, termed AgI/polypyrrole‐iodide (AgI/Ppy‐I). The resulting nanocomposite exhibits a hierarchical structure wherein larger particles, comprising smaller particles ~45 nm and an optical bandgap measuring 2.4 eV, form a coral reef‐like morphology. The sensitivity estimation of this constructed optoelectronic device relies on evaluating the current density (J<jats:sub>ph</jats:sub>) values. Under illumination, a remarkable augmentation in current density (J<jats:sub>ph</jats:sub> = 0.46 mA cm<jats:sup>−2</jats:sup>) with a promising value compared to the dark condition's 0.12 mA cm<jats:sup>−2</jats:sup>. The optical characteristics of this nanocomposite make it highly conducive to efficient UV–Vis light sensing. The values of D (detectivity), reflecting the device's sensitivity, are notably high at 4 × 10<jats:sup>8</jats:sup> and 3.82 × 10<jats:sup>8</jats:sup> Jones in the UV and Vis regions, correspondingly. The potential of this photodetector is reinforced by the computed R‐values, which denote the device's responsivity. With values of 1.8 and 1.72 mA W<jats:sup>−1</jats:sup> across these two optical regions, correspondingly, it showcases the nanocomposite's effectiveness in transforming incident light into electrical current. Moreover, the appeal of this photodetector extends beyond its performance characteristics. Its cost‐effectiveness, eco‐friendliness, straightforward preparation methodology, scalability for mass production, and high stability collectively. The versatility of this material, coupled with its advantageous attributes, opens avenues for its widespread application, catering to the diverse needs of industries and contributing to the accessibility of efficient optoelectronic devices for a broader audience.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A questionnaire survey was conducted to identify the factors that are effective in assessing people's attitudes toward e‐waste pollution prevention. Reliability analysis, normality distribution analysis, correlation and regression analysis, independent sample t‐test, and one‐way analysis of variance (ANOVA) were performed on the data obtained through IBM SPSS Statistics 25. In this way, it was determined to what extent the level of public awareness of e‐waste, environmental concerns, empathy, and moral norms toward the environment are affected by socio‐demographic factors. According to the study results, a significant relationship was found between environmental concerns, environmental pollution awareness, environmental responsibility, personal moral norms and educational status, and empathy and moral norms. In addition, limited growth, anthropocentrism, fragility of the balance of nature, educational status, and having children were also found to have a significant relationship with environmental concerns. However, a significant relationship was found between marital status and environmental concerns, empathy and moral norms. A significant relationship was also found between age group and empathy and moral norms.
为了确定评估人们对电子废物污染防治态度的有效因素，我们进行了问卷调查。通过 IBM SPSS Statistics 25 对所获得的数据进行了可靠性分析、正态分布分析、相关和回归分析、独立样本 t 检验和单因子方差分析（ANOVA）。通过这种方法，确定了公众对电子垃圾的认识水平、对环境的关注程度、同理心以及对环境的道德规范在多大程度上受社会人口因素的影响。研究结果表明，环境问题、环境污染意识、环境责任感、个人道德规范与教育状况、移情与道德规范之间存在显著关系。此外，研究还发现有限增长、人类中心主义、自然平衡的脆弱性、教育状况和有无子女也与环境问题有显著关系。然而，婚姻状况与环境问题、移情作用和道德规范之间的关系却很明显。年龄组与移情和道德规范之间也有重要关系。
{"title":"Investigation of society's sensitivity to environmental pollution and electronic waste in Turkey","authors":"Ahmet Burak Yalçın, Sevgi Güneş‐Durak","doi":"10.1002/ep.14474","DOIUrl":"https://doi.org/10.1002/ep.14474","url":null,"abstract":"A questionnaire survey was conducted to identify the factors that are effective in assessing people's attitudes toward e‐waste pollution prevention. Reliability analysis, normality distribution analysis, correlation and regression analysis, independent sample t‐test, and one‐way analysis of variance (ANOVA) were performed on the data obtained through IBM SPSS Statistics 25. In this way, it was determined to what extent the level of public awareness of e‐waste, environmental concerns, empathy, and moral norms toward the environment are affected by socio‐demographic factors. According to the study results, a significant relationship was found between environmental concerns, environmental pollution awareness, environmental responsibility, personal moral norms and educational status, and empathy and moral norms. In addition, limited growth, anthropocentrism, fragility of the balance of nature, educational status, and having children were also found to have a significant relationship with environmental concerns. However, a significant relationship was found between marital status and environmental concerns, empathy and moral norms. A significant relationship was also found between age group and empathy and moral norms.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mining was considered as a dangerous job which has now turned into much safer employment with the development of automation and communication techniques in mines. In mining, the equipment, tools, and techniques have changed significantly and continue to transform. This review work explores numerous such emerging problems and opportunities in different mining circumstances. The occupational safety and health management methods, as well as risk control technology allied with the mining industry, includes day‐to‐day management of operations, identification and assessment of risks, premature warning and active risk monitoring, etc. The research work in the safe and sustainable environment reveals that the major accidents occur due to natural calamity, human error, the control of which would ensure a sustainable and safe working environment for miners to a considerable extent. The present study proposed a smart and sustainable framework for a safe and clean environment for emerging safety and ergonomics issues through automated mining concept. The proposed framework has been developed by reviewing the previous research work related to mine safety, mine hazard, health, ergonomic issues, and mine automation.
{"title":"A smart and sustainable framework resolving safety and ergonomics issues in underground mining: A review and insight for future scenario","authors":"Varun Tripathi, Rituraj Singh Patwal","doi":"10.1002/ep.14476","DOIUrl":"https://doi.org/10.1002/ep.14476","url":null,"abstract":"Mining was considered as a dangerous job which has now turned into much safer employment with the development of automation and communication techniques in mines. In mining, the equipment, tools, and techniques have changed significantly and continue to transform. This review work explores numerous such emerging problems and opportunities in different mining circumstances. The occupational safety and health management methods, as well as risk control technology allied with the mining industry, includes day‐to‐day management of operations, identification and assessment of risks, premature warning and active risk monitoring, etc. The research work in the safe and sustainable environment reveals that the major accidents occur due to natural calamity, human error, the control of which would ensure a sustainable and safe working environment for miners to a considerable extent. The present study proposed a smart and sustainable framework for a safe and clean environment for emerging safety and ergonomics issues through automated mining concept. The proposed framework has been developed by reviewing the previous research work related to mine safety, mine hazard, health, ergonomic issues, and mine automation.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad W. Amer, Eman M. Khdeir, Francesco Barzagli, Mustafa A. Taha, Heba M. Alsalti, Elias N. Ibrahim, Rahaf A. Almassi, Ahmad R. Hasoneh, Mohammed T. Rasheed, Raid Al‐Jawasrah
This study explores the adsorption potential of hydrothermally treated waste derived algal biomass for removing methylene blue (MB) dye. Synthesizing a modified hydrochar through hydrothermal carbonization (150°C, 35 bar) followed by NaOH modification, we observed enhanced thermal stability and distinctive chemical changes. Optimal conditions were determined at pH 6 and 1 h contact time. Soluble salts with cations were identified as impacting adsorption efficiency, with increased interference for higher cation charges. Thermodynamic parameters (ΔG, ΔH, and ΔS) indicated a spontaneous and exothermic process, the calculated values (−5.417 to −6.907 kJ mol−1, −29.0 kJ mol−1, −73.8 J K−1 mol−1) aligned with this behavior. Adsorption isotherms favored the Freundlich model, revealing heterogeneous multilayer adsorption, with a maximum capacity of 97%. Kinetic studies supported the pseudo‐first‐order model. This detailed exploration provides insights into thermodynamics, kinetics, and the impact of adsorption parameters on MB removal, emphasizing the practicality of alkaline‐modified hydrochar as an effective, sustainable adsorbent.
{"title":"Removal of methylene blue by hydrochar modified from hydrothermal carbonization technique","authors":"Mohammad W. Amer, Eman M. Khdeir, Francesco Barzagli, Mustafa A. Taha, Heba M. Alsalti, Elias N. Ibrahim, Rahaf A. Almassi, Ahmad R. Hasoneh, Mohammed T. Rasheed, Raid Al‐Jawasrah","doi":"10.1002/ep.14469","DOIUrl":"https://doi.org/10.1002/ep.14469","url":null,"abstract":"This study explores the adsorption potential of hydrothermally treated waste derived algal biomass for removing methylene blue (MB) dye. Synthesizing a modified hydrochar through hydrothermal carbonization (150°C, 35 bar) followed by NaOH modification, we observed enhanced thermal stability and distinctive chemical changes. Optimal conditions were determined at pH 6 and 1 h contact time. Soluble salts with cations were identified as impacting adsorption efficiency, with increased interference for higher cation charges. Thermodynamic parameters (Δ<jats:italic>G</jats:italic>, Δ<jats:italic>H</jats:italic>, and Δ<jats:italic>S</jats:italic>) indicated a spontaneous and exothermic process, the calculated values (−5.417 to −6.907 kJ mol<jats:sup>−1</jats:sup>, −29.0 kJ mol<jats:sup>−1</jats:sup>, −73.8 J K<jats:sup>−1</jats:sup> mol<jats:sup>−1</jats:sup>) aligned with this behavior. Adsorption isotherms favored the Freundlich model, revealing heterogeneous multilayer adsorption, with a maximum capacity of 97%. Kinetic studies supported the pseudo‐first‐order model. This detailed exploration provides insights into thermodynamics, kinetics, and the impact of adsorption parameters on MB removal, emphasizing the practicality of alkaline‐modified hydrochar as an effective, sustainable adsorbent.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In winter, offices use heat pumps, electric heaters, and blowers to stay warm, but these use traditional energy that is not sustainable or eco‐friendly. To meet the requirements of thermal comfort, an environmentally friendly and self‐sustainable system was developed at Madhav Institute of Technology and Science in Gwalior, India. This system includes a heat exchanger, a flat plate collector, an evacuated tube collector, and a pump. Two versions of the system were tested: one with a heat exchanger and an evacuated tube collector (HEWETC) and another with a heat exchanger and a flat plate collector (HEWFPC). The results showed that the HEWETC system is better at heating the room and has higher efficiency compared to the HEWFPC system. The HEWFPC system is 12% efficient, while the HEWETC system is 21% efficient. The room stayed at a constant temperature of 26.3°C all day. The HEWETC and HEWFPC systems provided 0.46 and 0.55 MJ of heat to the room, respectively. During the heating season, the solar heat collected was 8030.38 kWh, and electricity used was 5229.7 kWh. The HEWETC system proved to be effective and suitable for heating the building.
{"title":"Energy analysis of standalone hybrid active solar room heating system","authors":"Amit Shrivastava, M. K. Gaur","doi":"10.1002/ep.14471","DOIUrl":"https://doi.org/10.1002/ep.14471","url":null,"abstract":"In winter, offices use heat pumps, electric heaters, and blowers to stay warm, but these use traditional energy that is not sustainable or eco‐friendly. To meet the requirements of thermal comfort, an environmentally friendly and self‐sustainable system was developed at Madhav Institute of Technology and Science in Gwalior, India. This system includes a heat exchanger, a flat plate collector, an evacuated tube collector, and a pump. Two versions of the system were tested: one with a heat exchanger and an evacuated tube collector (HEWETC) and another with a heat exchanger and a flat plate collector (HEWFPC). The results showed that the HEWETC system is better at heating the room and has higher efficiency compared to the HEWFPC system. The HEWFPC system is 12% efficient, while the HEWETC system is 21% efficient. The room stayed at a constant temperature of 26.3°C all day. The HEWETC and HEWFPC systems provided 0.46 and 0.55 MJ of heat to the room, respectively. During the heating season, the solar heat collected was 8030.38 kWh, and electricity used was 5229.7 kWh. The HEWETC system proved to be effective and suitable for heating the building.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142186759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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