Environmental Progress & Sustainable Energy最新文献_第2页

Biological methods for mariculture wastewater treatment: Current status, development, and prospects 生物法处理海水养殖废水的现状、发展与展望

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2025-09-25 DOI: 10.1002/ep.70128

Yue Wang, Chenyun An, Mengke Geng, Hui Jia, Jie Wang

{"title":"Biological methods for mariculture wastewater treatment: Current status, development, and prospects","authors":"Yue Wang, Chenyun An, Mengke Geng, Hui Jia, Jie Wang","doi":"10.1002/ep.70128","DOIUrl":"https://doi.org/10.1002/ep.70128","url":null,"abstract":"The wastewater from mariculture is characterized by low levels of potential pollutants and nutrient loads compared with industrial effluents. However, with elevated nitrogen and phosphorus ratios, the presence of persistent antibiotics, and endocrine-disrupting compounds at ecologically relevant concentrations, mariculture wastewater can cause chronic and serious harm to the marine environment, including elevated nutrient load of the water body and a polluted ecosystem. Physical, chemical, and biological methods can be used to treat mariculture wastewater. Among them, physical and chemical methods have certain limitations, such as high cost and generating secondary pollutants. In contrast, biological methods are environmentally friendly, while a comprehensive summary of biological methods for mariculture wastewater treatment is limited. To fill this knowledge gap, we summarize basic principles and recent progress of biological treatment techniques for mariculture wastewater. Microbial technology and plant treatment technology are the most effective techniques for mariculture wastewater treatment. Multiple technique coupling processes, such as bacteria-algae and membrane-biofilm systems, are future trends in treating mariculture wastewater for discharge or recycle, which need further investigations.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811345","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}

引用次数: 0

A critical review on carbon materials from oil sludges: Activation, application and future prospects 油泥碳材料的研究进展：活化、应用及前景展望

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2026-02-01 DOI: 10.1002/ep.70304

Haijie Hu, Lei Han, Chengtun Qu, Yun Ma, Tao Yu, Lanting Ma

{"title":"A critical review on carbon materials from oil sludges: Activation, application and future prospects","authors":"Haijie Hu, Lei Han, Chengtun Qu, Yun Ma, Tao Yu, Lanting Ma","doi":"10.1002/ep.70304","DOIUrl":"https://doi.org/10.1002/ep.70304","url":null,"abstract":"The resource recovery and high-value utilization of oil sludge (OS) have recently received increasing attention. Rich in carbon and various active components, OS is regarded as an ideal precursor for carbon material production. This review summarizes recent progress in the preparation and application of oil sludge-based carbon materials (OSBC). It compares physical and chemical activation methods, emphasizing that chemical activation more effectively enhances surface area, porosity, and efficiency at lower temperatures. Combined physical and chemical activation also demonstrates synergistic improvements. OSBC has exhibited excellent performance in adsorption and catalysis. Its adsorption capacity for organic pollutants, heavy metals, and CO2 is influenced by pore structure, surface chemistry, pollutant concentration, and operational conditions. In catalysis, OSBC shows strong performance in persulfate activation, organic degradation, heavy oil cracking, and oxygen reduction reactions. Its catalytic efficiency and selectivity can be further enhanced by nanoparticle loading and heteroatom doping. It aims to provide new insights into the resource-reused and high-value utilization of OS. It also discusses the current challenges and future directions for OSBC development, aiming to support the sustainable and efficient use of OS.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811149","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}

引用次数: 0

Comprehensive review of pharmaceutical waste: Environmental and health impacts, management strategies using 3R principles, and future implications 药品废物的全面审查：环境和健康影响、采用3R原则的管理战略以及未来影响

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2025-11-03 DOI: 10.1002/ep.70153

Niaz Mahmud, Syed Ahmed Tasnim, Intekhab Islam, Sneha Gautam, Md Shahinoor Islam

{"title":"Comprehensive review of pharmaceutical waste: Environmental and health impacts, management strategies using 3R principles, and future implications","authors":"Niaz Mahmud, Syed Ahmed Tasnim, Intekhab Islam, Sneha Gautam, Md Shahinoor Islam","doi":"10.1002/ep.70153","DOIUrl":"https://doi.org/10.1002/ep.70153","url":null,"abstract":"Inadequate management of pharmaceutical waste poses significant environmental and human health risks as it contains hazardous substances. Both developed and developing countries face challenges in managing waste generated by pharmaceutical manufacturing, which includes production ingredients such as toxic oncology drugs, antibody-drug conjugates, and steroids, as well as consumer-associated items like syringes, diagnostic reagents, kits, and other medical supplies, and miscellaneous waste. This review assesses current waste management strategies, including incineration, landfilling, waste immobilization, and the use of effluent treatment plants (ETPs) for wastewater treatment. The study also explored emerging technologies like advanced oxidation processes, adsorption techniques, and bioremediation methods, which show promise in improving the treatment of pharmaceutical pollutants. The effectiveness of these methods in mitigating environmental and health hazards is critically assessed, with a particular focus on reducing water contamination and minimizing ecological damage. The novelty of this review lies in its comprehensive analysis of the origins, challenges, and technological solutions for sustainable pharmaceutical waste management. It highlights best practices, identifies knowledge gaps, and proposes future directions for research to address the growing problem of pharmaceutical pollution, emphasizing the need for innovative solutions such as recycling, reusing, and reducing pharmaceutical waste to safeguard public health and environmental integrity. A systematic model of Circular Supply Chain Modeling (CSCM) has been proposed to reduce and manage pharmaceutical waste in the future.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811194","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}

引用次数: 0

Efficient removal of methylene blue and lead(II) using a magnetic Cu-ferrite bio-nanocomposite from black seed (Nigella sativa L.) waste: Synthesis, characterization, and adsorption study 磁性cu -铁氧体生物纳米复合材料高效去除黑籽（Nigella sativa L.）废弃物中的亚甲基蓝和铅（II）：合成、表征和吸附研究

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2025-11-12 DOI: 10.1002/ep.70178

Yekbun Avşar Teymur, Fuat Güzel

{"title":"Efficient removal of methylene blue and lead(II) using a magnetic Cu-ferrite bio-nanocomposite from black seed (Nigella sativa L.) waste: Synthesis, characterization, and adsorption study","authors":"Yekbun Avşar Teymur, Fuat Güzel","doi":"10.1002/ep.70178","DOIUrl":"https://doi.org/10.1002/ep.70178","url":null,"abstract":"It is economically important to convert industrial biowastes into low-cost and environmentally friendly valuable materials without harming the environment, and to use them in water treatment. Herein, to evaluate the black seed (Nigella sativa L.) industrial processing waste, it was converted into a new magnetically separable copper ferrite carbonaceous (CuF@BAC) nanocomposite material. It was characterized with VSM, BET, SEM–EDX, XRD, Raman, FT-IR, Boehm titration, and pHZPC techniques. Its BET surface area, total pore volume, average pore diameter, mesopore contribution, and saturation magnetization are 455 m2/g, 0.280 cm3/g, 2.5 nm, 64.5%, and 15.01 emu/g, respectively. Its ability to remove methylene blue (MB) and lead (Pb(II)) from water was tested. Kinetic and equilibrium isotherm data were modeled to describe the studied adsorption systems. The maximum removed quantities for MB and Pb(II) are 625 mg/g and 345 mg/g, respectively. The ΔGo, ΔHo, and ΔSo parameters computed to define the thermodynamic behavior of each adsorption system indicated that the processes were spontaneous, endothermic for MB and exothermic for Pb(II). Regeneration studies performed with HCl for each adsorbate showed it had reusable stability at high adsorption efficiency for up to four cycles. This study revealed that CuF@BAC is a promising green adsorbent due to its high adsorption efficiency, easy magnetic separation, and reusable properties.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811312","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}

引用次数: 0

Catalytic epoxidation of a mixture of oleic acid and waste cooking oil using a homogeneous catalyst 使用均相催化剂催化油酸和废食用油混合物的环氧化反应

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2026-01-05 DOI: 10.1002/ep.70218

Norhafini Hambali, Qistina Balqis Osman, Azmi Roslan, Intan Suhada Azmi, Siti Mariam A. Rahman, Mohd Jumain Jalil

{"title":"Catalytic epoxidation of a mixture of oleic acid and waste cooking oil using a homogeneous catalyst","authors":"Norhafini Hambali, Qistina Balqis Osman, Azmi Roslan, Intan Suhada Azmi, Siti Mariam A. Rahman, Mohd Jumain Jalil","doi":"10.1002/ep.70218","DOIUrl":"https://doi.org/10.1002/ep.70218","url":null,"abstract":"This study investigates the in situ epoxidation of a hybrid feedstock comprising waste cooking oil and oleic acid to enhance oxirane conversion for sustainable epoxide groups production. A key challenge with waste cooking oil is its low epoxidation efficiency when used alone. By blending it with oleic acid at a 1:1 weight ratio, a maximum relative conversion to oxirane (RCO) of 63.4% was achieved compared to 29.5% when using waste cooking oil alone accompanied by homogenous catalyst usage. The optimum reaction temperature was found at 70°C. Side reactions were minimal within 30 min of reaction time, but ring opening became significant at a higher temperature (80°C) and longer times. FTIR analysis confirmed successful epoxidation, where the disappearance of CC stretching (~1650 cm−1) and the appearance of epoxy ring vibrations (~823 cm−1) were observed. Kinetic modeling of the system demonstrated high reaction rates with minimal side reactions, validating the approach's accuracy and robustness. This work presents a novel hybrid strategy to valorize waste cooking oil, offering a more efficient and sustainable route for bio-based epoxide production.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811156","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}

引用次数: 0

A comprehensive review of coffee waste based adsorbents for the sequestration of different water contaminants 咖啡废弃物吸附剂对不同水污染物的吸附研究综述

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2025-12-10 DOI: 10.1002/ep.70157

Nisha Bagotia

{"title":"A comprehensive review of coffee waste based adsorbents for the sequestration of different water contaminants","authors":"Nisha Bagotia","doi":"10.1002/ep.70157","DOIUrl":"https://doi.org/10.1002/ep.70157","url":null,"abstract":"Currently, the presence of different contaminants like heavy metals, dyes, pharmaceutical waste, pesticides, etc. in water is problematic due to their toxic and carcinogenic nature. Among the various remediation processes, the adsorption process is attractive and efficient. Every year, more than 6 million tons of coffee are grown worldwide, and 0.68 tons of coffee waste are produced for every ton of coffee. Coffee waste is remarkable in wastewater treatment because (i) it has a porous surface, (ii) it contains a cellulose, hemicellulose, and lignin structure that can provide abundant functional groups, and (iii) it is recyclable. Reusing it not only reduces processing costs but also supports environmentally sustainable development. This review focuses on the application of coffee waste adsorbents in the removal of pollutants from wastewater. Physical, chemical, and composite modification methods of coffee waste have been discussed. The modified adsorbents have great enhancement in functional groups, surface active sites, pore properties, catalytic degradation ability, easy separation, and excellent capacity to adsorb different contaminants. Important elements influencing the adsorption process are also discussed, including the impact of solution pH, contact time, temperature, and adsorbent dosage.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811130","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}

引用次数: 0

Optimization of the acetaminophen degradation from polluted water using the photoelectro-Fenton method 光电fenton法降解对乙酰氨基酚的优化研究

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2026-02-05 DOI: 10.1002/ep.70208

Saeid Khodadoust, Gholam Reza Rakhshandehroo, Habibollah Rezaei Monfared, Zahra Bazyar

{"title":"Optimization of the acetaminophen degradation from polluted water using the photoelectro-Fenton method","authors":"Saeid Khodadoust, Gholam Reza Rakhshandehroo, Habibollah Rezaei Monfared, Zahra Bazyar","doi":"10.1002/ep.70208","DOIUrl":"https://doi.org/10.1002/ep.70208","url":null,"abstract":"The increasing production and consumption of medicinal substances and the presence of their residues in the environment have created potential dangers. Therefore, finding ways to reduce the environmental risks of pharmaceutical residues is one of the challenges facing researchers. Acetaminophen (ACE) is a widely utilized pharmaceutical worldwide, and its presence in the environment is concerning due to potential adverse effects. In this study, the efficiency of the photoelectro-Fenton method for the ACE removal was evaluated. In the photoelectro-Fenton method, a stainless steel plate was used as the cathode and a titanium plate as the anode. Lamps emitting wavelengths of 400 nm were used as UV light sources. In this method, at the first step, the effect of operating variables, including initial ACE concentration (10–120 mgL−1), initial H2O2 volume (20–110 μL), pH (2–6) of the sample, and reaction time (20–50 min) was investigated by using response surface methodology (RSM). In the next step, in order to obtain optimal points, the mathematical model obtained with the two methods of desirability function (DF) and gray wolf meta-heuristic algorithm was examined, and the results showed that the desirability function (with 91.0%) was more efficient than the gray wolf method (with 76.8). Based on these calculations and the desirability score of 1, the removal of ACE was optimized at 91.0% with the optimum values of the variables that were set as initial concentration of ACE 20.0 mg L−1, H2O2 value equal to 45.0 μL, pH = 3.0, and reaction time of 45.0 min.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811155","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}

引用次数: 0

Hemp sawdust-derived N/S/P-doped high surface area activated carbons for supercapacitors: Correlation between structural properties and performance 超级电容器用大麻木屑衍生的N/S/ p掺杂高表面积活性炭：结构性能与性能的相关性

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2026-03-06 DOI: 10.1002/ep.70314

I. Isıl Gurten Inal, Yalçın Çelik, Şevval Nur Karademir, Esra Yildiz

{"title":"Hemp sawdust-derived N/S/P-doped high surface area activated carbons for supercapacitors: Correlation between structural properties and performance","authors":"I. Isıl Gurten Inal, Yalçın Çelik, Şevval Nur Karademir, Esra Yildiz","doi":"10.1002/ep.70314","DOIUrl":"https://doi.org/10.1002/ep.70314","url":null,"abstract":"Here, hemp sawdust waste was converted into high-performance activated carbons through chemical activation and targeted heteroatom doping. Nitrogen, sulfur, and phosphorus were introduced individually (NAC, SAC, PAC) and in combination (NSPAC) to tailor porosity and surface chemistry. Remarkably, the obtained carbons exhibited high specific surface areas (up to 3456 m2/g), comparable to or exceeding many reported biomass-derived heteroatom-doped carbons, highlighting the effectiveness of this approach. The materials were evaluated as symmetric two-electrode supercapacitors in aqueous electrolyte within a 0–0.8 V window using cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. All electrodes exhibited quasi-rectangular CVs and linear, symmetric GCD curves, indicating electric double-layer storage with mild pseudocapacitive contributions in the doped samples. A consistent performance hierarchy was observed: NAC delivered the highest response, closely followed by NSPAC, while AC and PAC maintained highly reversible behavior with strong rate capability, and SAC showed comparatively lower performance due to reduced internal surface area and higher interfacial resistance. Impedance analysis linked high-rate operation to low charge-transfer resistance, explaining the PAC–AC crossover at the highest current. Long-term cycling over 10,000 cycles retained more than 95% of the capacitance, clearly demonstrating durability. These findings establish a robust structure–property relationship: accessible hierarchical porosity combined with carefully designed heteroatom chemistry enables sustainable electrodes with high capacitance, strong rate performance, and excellent stability. Hemp waste, therefore, represents a scalable feedstock for aqueous supercapacitors, offering both low cost and practical applicability.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811199","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}

引用次数: 0

A modified model for ignition behavior of nano-blended fuel droplets 纳米混合燃料液滴点火行为的修正模型

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2025-10-31 DOI: 10.1002/ep.70137

M. Baghban, Z. Shams, S. H. Pourhoseini

{"title":"A modified model for ignition behavior of nano-blended fuel droplets","authors":"M. Baghban, Z. Shams, S. H. Pourhoseini","doi":"10.1002/ep.70137","DOIUrl":"https://doi.org/10.1002/ep.70137","url":null,"abstract":"In this paper, evaporation and ignition process of metallic and non-metallic nano- blended fuels are discussed based on the measurement of thermophysical properties and radiation effect. Two samples of nano- blended fuels were prepared by addition of cerium oxide and graphene nanoparticles to B20 fuel at dilute concentrations of 0.03% and 0.05% (by mass). The ignition probability tests were done by hot plate experiments between 400°C and 660°C. Experiments showed that the ignition probability of B20 fuel considerably increase in the presence of nanoparticle. For instance, at 520°C, the ignition probability increases from 36% for B20 to 76% and 80%, respectively, for cerium oxide and grapheme nanoparticles, at the mass fraction of 0.05%. Also, an increase in the mass fraction of the nanoparticles results in a higher ignition probability of the nano- blended fuel. At such relatively low concentrations, it can be seen that the effect of nanoparticles on the fuel thermo-physical properties and consequently the ignition behavior of B20 fuels is not significant. Therefore, ignition probability enhancement is mainly attributed to strong radiation absorption of the nanoparticles suspended within the droplets, which provides more energy from the flame to the liquid phase for evaporation. By considering the radiation effect, a modified model is proposed for description of the ignition behavior of a nano- blended fuel droplet.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811356","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}

引用次数: 0

Effect of sodium alginate and corn starch bio-flocculants on the maximization of yield % of refined lubricant obtained by environmental friendly extractive–flocculative approach: A comparative optimization study 海藻酸钠和玉米淀粉生物絮凝剂对环保型萃取-絮凝法制备精制润滑油收率%最大化的影响对比优化研究

IF 2.6 4区环境科学与生态学

Environmental Progress & Sustainable Energy Pub Date : 2026-08-25 Epub Date: 2025-09-28 DOI: 10.1002/ep.70095

Sayantan Sarkar, Moupiya Ghosh, Gokulan Ravindiran, Deepshikha Datta, Bimal Das

{"title":"Effect of sodium alginate and corn starch bio-flocculants on the maximization of yield % of refined lubricant obtained by environmental friendly extractive–flocculative approach: A comparative optimization study","authors":"Sayantan Sarkar, Moupiya Ghosh, Gokulan Ravindiran, Deepshikha Datta, Bimal Das","doi":"10.1002/ep.70095","DOIUrl":"https://doi.org/10.1002/ep.70095","url":null,"abstract":"Long-term usage of lubricating oil produces waste that poses a risk to the environment, human health, and the economy. To create a sustainable ecosystem, the waste oil must be treated and disposed of properly. The extraction flocculation procedure for recovering used engine oil is the focus of the current study. To maximize the percentage recovery of refined oil, a comparative evaluation and optimization research was conducted using two distinct bio-flocculants (sodium alginate and corn starch). The quality of refined oil and its surface morphology, with integration of elemental analysis, has been extensively addressed using fuller's earth as an adsorbent. The optimal parameters assessed were: extraction time of 60 and 80 min; temperatures of 50 and 60°C; solvent to waste oil ratios of 4.98:1 and 3:1; and flocculant dosages of 2 and 1 g/kg of solvent, for 1-butanol-Corn starch and 1-butanol-sodium alginate, respectively. The yield of recovered oil with 1-butanol-sodium alginate was found to be higher (91.81%) than 1-butanol-corn starch (88.25%) due to its higher tendency for eradication of carbonaceous matter, as well as other oxidative products from waste oil. The physico-chemical parameters of the refined oil, utilizing sodium alginate as a bio-flocculant, were determined to be a viscosity of 17.32 cSt at 100°C, a flash point of 231°C, and a pour point of −32°C, which closely resembles that of fresh oil. The refined oil can effectively alleviate the oil crisis and foster a sustainable green atmosphere.","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 4","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148811324","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}

引用次数: 0