Environmental Progress & Sustainable Energy最新文献

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Photocatalytic degradation of 2,4-Dichlorophenoxyacetic acid by zero-valent Ag-modified zinc oxide composite 零价银修饰氧化锌复合材料光催化降解2,4-二氯苯氧乙酸
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-03-11 DOI: 10.1002/ep.70427
Fabo Zhang, Yang Chen, Xiaoli Bai, Die Zhou, Qizhe Gui, Ying Fang, Daomei Chen, Jiaqiang Wang
{"title":"Photocatalytic degradation of 2,4-Dichlorophenoxyacetic acid by zero-valent Ag-modified zinc oxide composite","authors":"Fabo Zhang,&nbsp;Yang Chen,&nbsp;Xiaoli Bai,&nbsp;Die Zhou,&nbsp;Qizhe Gui,&nbsp;Ying Fang,&nbsp;Daomei Chen,&nbsp;Jiaqiang Wang","doi":"10.1002/ep.70427","DOIUrl":"https://doi.org/10.1002/ep.70427","url":null,"abstract":"<p>Photocatalytic degradation has emerged as a highly promising and effective approach for the removal of 2,4-Dichlorophenoxyacetic acid (2,4-D), a widely used herbicide. In this study, a one-step calcination method was developed to synthesize zinc oxide (ZnO) supported on Baizilian biochar (ABC) with simultaneous doping of silver (Ag). The ZnO/ABC catalyst incorporating 3% Ag nanoparticles exhibits the highest photocatalytic activity, achieving a 2,4-D degradation rate of 95.4% within 50 min, exhibiting a photocatalytic rate constant of 0.06462 ± 0.0004 min<sup>−1</sup>, which is 3.21 and 1.80 times higher than that of pure ZnO and ZnO/ABC, respectively. Mechanistic investigations revealed that the incorporation of silver nanoparticles reduced the band gap energy of the 3% Ag-ZnO/ABC system, thereby enhancing the separation efficiency and utilization of photogenerated electrons and holes, leading to increased generation of •O₂<sup>−</sup> responsible for organic pollutant degradation. Furthermore, based on the identification of intermediate products, two plausible degradation pathways were proposed.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205467","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
Combined influence of hydrogen enrichment and exhaust gas recirculation in dual-fuel mode on the combustion, performance, and emission characteristics of a B20-fueled compression ignition engine 双燃料模式下富氢和废气再循环对b20燃料压缩点火发动机燃烧、性能和排放特性的联合影响
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-03-17 DOI: 10.1002/ep.70439
Prakash Ramasamy Samivel, Mohanraj Murugesan, Jeyalakshmi Ponnusamy, Udhayakumar Natarajan
{"title":"Combined influence of hydrogen enrichment and exhaust gas recirculation in dual-fuel mode on the combustion, performance, and emission characteristics of a B20-fueled compression ignition engine","authors":"Prakash Ramasamy Samivel,&nbsp;Mohanraj Murugesan,&nbsp;Jeyalakshmi Ponnusamy,&nbsp;Udhayakumar Natarajan","doi":"10.1002/ep.70439","DOIUrl":"https://doi.org/10.1002/ep.70439","url":null,"abstract":"<p>The increasing environmental burden caused by diesel engines, characterized by high exhaust emissions and gradual performance limitations, necessitates the development of cleaner and more efficient combustion strategies. Conventional biodiesel blends such as B20 often experience a slight reduction in efficiency due to their higher viscosity and lower calorific value when compared with neat diesel fuel. Earlier investigations have explored biodiesel–diesel blending to improve soot oxidation, hydrogen enrichment to promote premixed combustion, compression ratio modification to influence ignition behavior, and exhaust gas recirculation to suppress nitrogen oxide formation. Despite their benefits, these techniques involve trade-offs, as hydrogen addition can increase NO<sub>x</sub> emissions, while excessive EGR may deteriorate combustion stability and promote incomplete oxidation. To address these limitations, the present work proposes an integrated strategy combining B20 biodiesel, hydrogen enrichment, reduced compression ratio, and controlled EGR operation. Experimental results reveal that hydrogen induction at a compression ratio of 18:1 enhanced brake thermal efficiency by 2.5%, increased peak cylinder pressure by 9%, and improved cumulative heat release by 8% compared with baseline B20 at 18:1 CR. At the same condition, carbon monoxide, hydrocarbon, and smoke emissions were reduced by 30%, 33%, and 32%, respectively. Reducing the compression ratio to 17:1 effectively moderated the NO<sub>x</sub> rise associated with hydrogen addition without imposing a noticeable efficiency penalty. Furthermore, hydrogen-enriched B20 operation paired with EGR rates of 4–10% showed that moderate levels of 4–6% provided the most balanced performance and emission characteristics. Overall, the combined application establishes a viable pathway forward.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149206004","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
Experimental study on drying characteristics of amla and apple using a dual-mode heat pump dryer 双模热泵干燥机对amla和苹果干燥特性的实验研究
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-05-09 DOI: 10.1002/ep.70493
Ranjeet Kumar Rai, Rashmi Rekha Sahoo, Akhilesh Singh, Davinder Pal Singh Oberoi, Anjali Tomar, Sarvesh Rustagi, G. Jeevarathinam
{"title":"Experimental study on drying characteristics of amla and apple using a dual-mode heat pump dryer","authors":"Ranjeet Kumar Rai,&nbsp;Rashmi Rekha Sahoo,&nbsp;Akhilesh Singh,&nbsp;Davinder Pal Singh Oberoi,&nbsp;Anjali Tomar,&nbsp;Sarvesh Rustagi,&nbsp;G. Jeevarathinam","doi":"10.1002/ep.70493","DOIUrl":"https://doi.org/10.1002/ep.70493","url":null,"abstract":"<p>The present research investigation focuses on analyzing the energy and exergetic efficiencies of Heat Pump Dryers (HPD) while running in closed and open-cycle modes. The main aim of this study is to perform the comparative performance analysis of the HPD in both closed and open-cycle configurations for Amal and Apple with a 0.5 m/s constant air flow rate. The performance parameters like total energy consumption, drying temperature, relative humidity, Coefficient of Performance (COP), energy efficiency, drying efficiency, Specific Moisture Extraction Rate (SMER), Moisture Extraction Rate (MER), and exergy destruction rate have been analyzed with respect to drying time. To analyze the performance, a convective batch-type drying chamber was designed with 8 trays with a spacing of 2.5 cm, and a 5 kg sample was used for experimentation. The research emphasizes that the closed-cycle mode of the HPD demonstrates more energy efficiency, average drying temperature, MER, SMER, drying efficiency, and less drying time, total energy consumption, and COP in the drying process as compared to the open-cycle mode. The performance of closed-mode HPD is observed to be superior for Amla as compared to Apple drying products. The average drying air temperatures and SMER for amla and apple in the open system were 52–60°C, and 2.09 kg/kWh, and 58–60°C, and 1.53 kg/kWh, respectively, but temperatures and SMER in the closed system were 58–65°C, and 1.4 kWh, and 58–67°C, and 3.0 kWh, respectively. The exergy loss in apple drying was the highest at 0.243 kW, highlighting the need for future system optimization.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205295","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
Waste polystyrene-based polymer membrane composite (PSSA/PVA/Nd2O3) for biodiesel production from waste cooking corn oil 废弃聚苯乙烯基聚合物膜复合材料(PSSA/PVA/Nd2O3)用于从废弃烹饪玉米油中生产生物柴油
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-05-03 DOI: 10.1002/ep.70497
Habiba Masood, Muhammad Tariq, Khalid Mahmood, Shabbir Hussain, Muhammad Imran
{"title":"Waste polystyrene-based polymer membrane composite (PSSA/PVA/Nd2O3) for biodiesel production from waste cooking corn oil","authors":"Habiba Masood,&nbsp;Muhammad Tariq,&nbsp;Khalid Mahmood,&nbsp;Shabbir Hussain,&nbsp;Muhammad Imran","doi":"10.1002/ep.70497","DOIUrl":"https://doi.org/10.1002/ep.70497","url":null,"abstract":"<p>In the current work, waste polystyrene-based composite catalytic membrane (PSSA/PVA/Nd<sub>2</sub>O<sub>3</sub>) was prepared by solution casting method. The functional, structural, thermal, morphological, compositional properties and surface area of the synthesized composite catalytic membrane and its precursors (PSSA, PVA, and Nd<sub>2</sub>O<sub>3</sub>) were assessed using Fourier Transform-Infrared Spectroscopy, X-Ray Diffraction, Thermogravimetric, scanning electron microscopy, Energy Dispersive X-Ray, and Brunauer–Emmett–Teller analysis, respectively. The newly prepared composite catalytic membrane was employed in the catalytic conversion of triglycerides in waste cooking corn oil (WCCO) to fatty acid methyl ester (FAMEs) chemically known as biodiesel. The formation of biodiesel was confirmed using Fourier Transform Infrared Spectroscopy and Proton Nuclear Magnetic Spectroscopy. The FAMEs composition of WCCO biodiesel was ascertained by Gas Chromatography–Mass Spectrometry technique, which revealed the presence of C-12 to C-24 FAMEs at different retention times. Numerous factors, including the oil:methanol ratio (1:10, 1:15, and 1:20), catalyst quantity (1, 2, and 3 weight %), reaction duration (3.0, 4.0, and 5.0 h), and temperature (100°C–140°C), were thoroughly examined and optimized using both conventional and response surface methodology (RSM) methods. The maximum percentage yield of biodiesel was obtained at 1:20 (oil: methanol molar ratio), 3 wt % (catalyst concentration), 5 h (reaction duration), and 140°C (temperature). The best comparison was obtained between conventional and RSM optimization. The physical parameters like density, viscosity, acid number, and fuel properties like cloud point, pour point, and flash point were assessed and found within ASTM limits.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205352","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
Issue Information - Cover and Table of Contents 发行资料-封面及目录
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 DOI: 10.1002/ep.70700
{"title":"Issue Information - Cover and Table of Contents","authors":"","doi":"10.1002/ep.70700","DOIUrl":"https://doi.org/10.1002/ep.70700","url":null,"abstract":"","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ep.70700","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149206098","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}
引用次数: 0
Novel sustainable flocculants based on rice straw biowaste grafted with hydroxyethyl methacrylate for industrial effluents water treatment 稻秆生物废弃物接枝甲基丙烯酸羟乙酯的新型可持续絮凝剂用于工业废水处理
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-05-20 DOI: 10.1002/ep.70524
Khaled M. Mostafa, Azza A. El-Sanabary
{"title":"Novel sustainable flocculants based on rice straw biowaste grafted with hydroxyethyl methacrylate for industrial effluents water treatment","authors":"Khaled M. Mostafa,&nbsp;Azza A. El-Sanabary","doi":"10.1002/ep.70524","DOIUrl":"https://doi.org/10.1002/ep.70524","url":null,"abstract":"<p>The novelty addressed here was designed to tackle the challenges of industrial wastewater treatment, particularly for synthetic effluents like kaolin and iron ore suspensions as a mimic of synthetic wastewater. This was engineered by fabricating a novel sustainable flocculant via grafting 2-hydroxyethyl methacrylate (HEMA) as a hydrophilic monomer onto rice straw (RS) as an indigenous biowaste using a sustainable microwave technique in the presence of small amounts of potassium persulphate (KPS) as initiator. HEMA, KPS, and RS concentrations were optimized to scrutinize their impact on maximizing the graft yield and graft reaction efficiency percentage. The so-obtained poly(HEMA)-rice straw graft copolymer was characterized using Fourier-transform infrared, scanning electron microscope, X-ray diffraction, elemental analysis, specific viscosity, and zeta potential. The optimum conditions for grafting are established to be 50.0% when using [rice straw], 2 g; [KPS], 0.06 mole/L; [HEMA], 100% based on weight of rice straw; [microwave power], 400 W; and [exposure time], 180 s. The flocculation efficiency expressed as turbidity, weight removal percentage, and sedimentation rate height of the copolymer toward kaolin and iron ore suspensions was evaluated by studying the foremost factors affecting the flocculation process, like flocculent dose, pH, temperature, and extent of grafting. The flocculant so obtained at the optimum conditions achieved the highest flocculation efficiency through turbidity of 44 and 55 NTU, weight removal % of 63 and 58, and sedimentation rate height equal to −28 and −27 cm for kaolin and iron ore suspensions respectively. A comparison with other flocculants, flocculant durability, and the proposed reaction mechanism were conducted.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149206105","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
Comparative evaluation of machine learning models for predicting IC engine performance and emission behavior of ZOME20 hybrid Nano-additive diesel blends ZOME20混合纳米添加剂柴油混合燃料内燃机性能和排放行为预测的机器学习模型对比评价
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-03-26 DOI: 10.1002/ep.70432
Sk. R. S. Mahaboob Ali, Rambabu Govada, Batta Naga Raju, K. Venkatasubbaiah, K. Brahma Raju
{"title":"Comparative evaluation of machine learning models for predicting IC engine performance and emission behavior of ZOME20 hybrid Nano-additive diesel blends","authors":"Sk. R. S. Mahaboob Ali,&nbsp;Rambabu Govada,&nbsp;Batta Naga Raju,&nbsp;K. Venkatasubbaiah,&nbsp;K. Brahma Raju","doi":"10.1002/ep.70432","DOIUrl":"https://doi.org/10.1002/ep.70432","url":null,"abstract":"<p>This article presents the synergistic effect between the ZOME20 biodiesel blend (i.e., 20% ZOME +80% diesel) and metal oxide nanoadditives (CeO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and GO) in the amount of 50–200 ppm in the performance and emission characteristics of a single-cylinder CI engine and its prediction models by machine learning (ML). Out of all operable combinations in a diesel engine, the strongest enhancement of brake thermal efficiency (BTE) was found by the experimental addition of 150 ppm CeO<sub>2</sub> and TiO<sub>2</sub>, rising from 28.9% (diesel) to 31.5%, and the drop in Brake Specific Fuel Consumption (BSFC) is from 0.29 to 0.27 kg/kWh. Emission analysis showed a 21% reduction in HC, a 16% reduction in CO, and a 24% reduction in smoke opacity, while CO<sub>2</sub> and NOₓ showed reasonable increases of 9% and 7%, respectively (over baseline diesel). A series of machine learning models (Random Forest, Gradient Boosting, AdaBoost, and Ensemble Regression) were developed to predict the performance as well as emission results. In the present work obtained the highest total accuracy using Random Forest (<i>R</i><sup>2</sup> = 0.82; RMSE = 7.91 and MAE =  4.10), followed by Gradient Boosting (<i>R</i><sup>2</sup> = 0.78). Mean absolute percentage error (MAPE) of significant parameters was below 15%, indicating good model generalization. The combined experimental and ML efforts validated that nanoadditive-assisted biodiesel combustion improves thermal efficiency and emission control, a sustainable and model-based line of advance for optimizing future diesel engine technologies.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205968","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
Data-driven prediction and multi-objective emission control in co-firing systems using support vector regression and genetic algorithm 基于支持向量回归和遗传算法的共烧系统数据驱动预测和多目标排放控制
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-05-12 DOI: 10.1002/ep.70496
Manoj Yadav, Prashant Saini
{"title":"Data-driven prediction and multi-objective emission control in co-firing systems using support vector regression and genetic algorithm","authors":"Manoj Yadav,&nbsp;Prashant Saini","doi":"10.1002/ep.70496","DOIUrl":"https://doi.org/10.1002/ep.70496","url":null,"abstract":"<p>Current study investigates the emission and combustion performance of a tangentially fired boiler co-firing coal with municipal solid waste (MSW) and biomass using support vector regression (SVR) modeling integrated with a genetic algorithm (GA) Pareto optimization and proposes a novel hybrid modeling framework. Experimental data were collected across a 60–110 MW load range, and SVR models were developed to capture nonlinear behavior in SO<sub><i>x</i></sub>, NO<sub><i>x</i></sub>, suspended particulate matter, flue gas temperature, and flame intensity. The GA Pareto method was then applied to identify optimal non-dominated operating points for emission minimization and combustion enhancement. The results show that co-firing 10% MSW reduces SO<sub><i>x</i></sub> emissions by 29–32%, while 10% biomass reduces SO<sub><i>x</i></sub> by 10–13% relative to optimized coal firing in the stable range. For NO<sub><i>x</i></sub>, biomass blending shows a 2–4% reduction, whereas MSW shows a slight increase due to higher fuel-bound nitrogen. Combustion performance improved significantly under MSW and biomass fuels and increased flue gas temperatures to 820°C and 830°C, compared to 700°C for coal only, while flame intensity peaked at 45.5 for MSW, 6% above coal. For all responses, the GA Pareto optima consistently clustered in the 90–105 MW range, confirming this as the most favorable operational band for balancing emission control and combustion stability. Overall, the hybrid SVR–GA methodology proved highly effective in identifying realistic, multi-objective operating strategies for waste and biomass co-firing in boiler. The combined SVR–GA approach thus provides a validated and intelligent model for co-firing decision-making.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205458","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
Struvite recovery from catfish blood wastewater via CaO-assisted magnesium electrocoagulation 钙辅助镁电凝法回收鲶鱼血废水中的鸟粪石
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-03-11 DOI: 10.1002/ep.70435
Trang Thi Cam Truong, Phuc Tuong Ngo Hoang, Ha Manh Bui
{"title":"Struvite recovery from catfish blood wastewater via CaO-assisted magnesium electrocoagulation","authors":"Trang Thi Cam Truong,&nbsp;Phuc Tuong Ngo Hoang,&nbsp;Ha Manh Bui","doi":"10.1002/ep.70435","DOIUrl":"https://doi.org/10.1002/ep.70435","url":null,"abstract":"<p>The recovery of nitrogen and phosphorus from nutrient-rich wastewater is essential for sustainable agriculture and circular resource management. Fish-blood wastewater from aquaculture contains high organic and nutrient loads but is rarely explored for nutrient recovery. This study developed a hybrid coagulation–electrocoagulation system combining calcium oxide (CaO) with magnesium electrodes to simultaneously reduce chemical oxygen demand (COD) and recover nutrients as struvite. The effects of CaO dosage, current density, pH and reaction time were optimized. Under optimal conditions, COD reduction reached 84.20% at pH 10.5, while NH<sub>4</sub><sup>+</sup>–N and PO<sub>4</sub><sup>3−</sup>–P conversion into solid precipitates reached 76.03% and 90.46%, respectively, at pH 9.5. Box–Behnken Design showed excellent predictive accuracy (R<sup>2</sup> &gt; 0.97) and principal component analysis (PCA) confirmed that CaO mainly controlled COD reduction, whereas current density governed struvite formation. COD reduction followed second-order and Behnajady–Modir-Shahla–Ghanbary models and X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier-transform infrared spectroscopy (FTIR) verified crystalline struvite (MgNH<sub>4</sub>PO<sub>4</sub>·6H<sub>2</sub>O). These performances were achieved with an overall energy demand of ~5.4 kWh/m<sup>3</sup>, demonstrating the feasibility of integrating treatment and nutrient recovery in a single electrochemical process.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205466","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
Photocatalytic removal of acetamiprid insecticide using Mn0.802Fe0.198O prepared by co-precipitation under UV light 紫外光下共沉淀法制备mn0.802 fe0.1980 o光催化去除啶虫啉杀虫剂
IF 2.6 4区 环境科学与生态学
Environmental Progress & Sustainable Energy Pub Date : 2026-10-17 Epub Date: 2026-03-16 DOI: 10.1002/ep.70428
Fouad Guenfoud, Imene Belfilali, Manel Benchabane, Nadia Bouhadja, Lilya Boudriche
{"title":"Photocatalytic removal of acetamiprid insecticide using Mn0.802Fe0.198O prepared by co-precipitation under UV light","authors":"Fouad Guenfoud,&nbsp;Imene Belfilali,&nbsp;Manel Benchabane,&nbsp;Nadia Bouhadja,&nbsp;Lilya Boudriche","doi":"10.1002/ep.70428","DOIUrl":"https://doi.org/10.1002/ep.70428","url":null,"abstract":"<p>Insecticides, commonly applied in agriculture, pose a risk of contaminating water sources, including drinking water, and can have harmful impacts on both human health and the environment. When spread on land, these substances seep into the ground and contaminate the groundwater. This pollution affects water quality and requires further treatment. This study focuses on the synthesis of a mixed oxide composed of manganese and iron (Mn<sub>0.802</sub>Fe<sub>0.198</sub>O), which is a particularly effective photocatalyst. The characteristics of the materials prepared in this study were investigated using powder X-ray diffraction (PXRD), scanning electron microscopy (SEM–EDX), nitrogen sorption analysis, solid-state UV–visible spectroscopy, and FTIR. This study examined the degradation efficiency of a synthesized photocatalyst for the degradation of a water-contaminating insecticide. The effects of concentration of pollutant, catalyst quantity, and pH over time were explored. The results showed that Mn<sub>0.802</sub>Fe<sub>0.198</sub>O had converted nearly 100% of insecticide under UV light with optimum operating conditions of 0.25 g L<sup>−1</sup> of photocatalyst, acid pH (pH = 3), and 1 g L<sup>−1</sup> of insecticide; a kinetic study was also realized with a constant reaction rate equal to <i>k</i><sub>app</sub> = 0.051 ± 0.004 min<sup>−1</sup>.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"45 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205892","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
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