Weixuan Zhao , Hao Shen , Hong Zhang , Baojun Li , Renxi Zhang , Yujie Tan , Ran Sun
{"title":"Non-thermal plasma and modified catalysts: A synergistic approach to air purification","authors":"Weixuan Zhao , Hao Shen , Hong Zhang , Baojun Li , Renxi Zhang , Yujie Tan , Ran Sun","doi":"10.1016/j.ceja.2025.100748","DOIUrl":"10.1016/j.ceja.2025.100748","url":null,"abstract":"<div><div>With the increasing air pollutants that threaten human health, the quest for innovative air purification solutions has been more critical. This review delves into the frontier of NTP and modified catalysts, offering a compelling approach to air purification. Traditional catalysts, despite their pivotal role, generally falter in the face of deactivation, poisoning, and stability issues. With the advantage of generating reactive particles, NTP outstandingly promotes the catalytic process, contributing to the reinforced pollutant degradation efficiency and catalytic conversion rates. This review elucidates the fundamental principles of NTP, its impact on catalyst modification, and the structural and chemical changes it induces. Additionally, the mechanisms and advancements of the NTP-catalyst system are also illuminated. This system is identified as a hopeful path for air purification and environmental protection attributed to its improved energy efficiency, low-temperature operation, and significant reduction in harmful by-products. Moreover, challenges and perspectives are presented for the further optimal combination of NTP with catalysts and broadening their practical applications.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100748"},"PeriodicalIF":5.5,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luke A. Gurtowski , Sheila J. McLeod , Sarah Grace Zetterholm , Hollie Cook , Chris S. Griggs , Florence Sanchez
{"title":"Alkaline hydrolysis for degrading the emerging munitions contaminant methylnitroguanidine and regenerating graphene nanoplatelets for sustainable adsorption of munition compounds","authors":"Luke A. Gurtowski , Sheila J. McLeod , Sarah Grace Zetterholm , Hollie Cook , Chris S. Griggs , Florence Sanchez","doi":"10.1016/j.ceja.2025.100743","DOIUrl":"10.1016/j.ceja.2025.100743","url":null,"abstract":"<div><div>Alkaline hydrolysis has proven to be an effective treatment technique for several emerging and legacy munition compounds (MCs), including 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-s-triazine (RDX), 2,4-dinitroanisole (DNAN), and nitroguanidine (NQ). Building on this success, this study evaluates its effectiveness in degrading the emerging insensitive MC methylnitroguanidine (MeNQ) in comparison to NQ. Additionally, the feasibility of regenerating graphene nanoplatelets (GnPs) following adsorption of MCs, including MeNQ, NQ, NTO, TNT, DNAN, and RDX, is investigated. This study is among the first to successfully evaluate MeNQ treatment and proposes a novel strategy to regenerate GnPs for further environmental remediation. Regeneration performance in high-pH solutions was compared with processes using a 30:70 solution of acetonitrile:water and reagent water alone to further determine pH- and solvent-based interactions. In high-pH solutions, NTO was desorbed via electrostatic repulsion, while the other MCs degraded, generating breakdown products consistent with both previous studies and current findings. Additionally, the aqueous ammonium produced during degradation may have been removed by GnPs. The organic-aqueous blend enhanced MC removal, with recovery largely correlating with aqueous solubility, though π-π interactions may have hindered desorption. Adsorption following desorption with these techniques resulted in higher capacities compared to systems using reagent water alone, where desorption aligned with adsorption isotherms. Overall, this study provides valuable insights into MeNQ treatment and the reuse of GnPs for sustainable water remediation.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100743"},"PeriodicalIF":5.5,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sagar Dutta , Md. Rabiul Hassan , M. D. I. Bhuyan , Angkita Mistry Tama , Gourab Kumar Roy , Tusar Saha , Md. Sarowar Hossain
{"title":"Computational and experimental approach to La3+ doping at the B-site of BiFeO3: Insights into BiFe0.90La0.10O3 multiferroic","authors":"Sagar Dutta , Md. Rabiul Hassan , M. D. I. Bhuyan , Angkita Mistry Tama , Gourab Kumar Roy , Tusar Saha , Md. Sarowar Hossain","doi":"10.1016/j.ceja.2025.100742","DOIUrl":"10.1016/j.ceja.2025.100742","url":null,"abstract":"<div><div>The structure and microstructure of BiFeO<sub>3</sub> and BiFe<sub>0.90</sub>La<sub>0.10</sub>O<sub>3</sub> ratify a successful synthesis of the perovskite material associated with the R3c space group. The structural parameters have been obtained by the Rietveld-refinement of XRD data followed by the DFT calculation. The computed band structure manifests the existence of the up-spin indirect band gap (<em>E<sub>g</sub></em>) in both samples, along with a reduced <em>E<sub>g</sub></em> for La doping in BiFeO<sub>3</sub> (2.73 eV). Apart from this, frequency-dependent dielectric properties of BiFeO<sub>3</sub> and BiFe<sub>0.90</sub>La<sub>0.10</sub>O<sub>3</sub> have been extensively studied theoretically as well as experimentally between 100 Hz to 100 MHz. Interestingly, the real part of the calculated dielectric function of the BFLO sample shifts from the larger positive values to the lower negative values with elevated frequency of the applied field. Therefore<em>,</em> experimental dielectric permittivity has been analyzed using the mathematical models of Logistic, Lorentz, and Polynomial functions. In addition, dynamic stability is reviewed by the phonon dispersion calculation that signifies entirely positive vibrational modes of both acoustic and optical phonons for BiFeO<sub>3</sub>, while BiFe<sub>0.90</sub>La<sub>0.10</sub>O<sub>3</sub> exhibits two negative vibrational modes of acoustic phonons at -44.95 cm<sup>-1</sup>. However, the calculated Debye temperature (θ<sub><em>D</em></sub>) for BFLO is ∼1214 K at 1000 K, which is ∼2 times higher than it is for BiFeO<sub>3</sub> (∼608 K at 1000 K). Consequently, BiFeO<sub>3</sub> and BiFe<sub>0.90</sub>La<sub>0.10</sub>O<sub>3</sub> samples are categorized as weak ferromagnetic based on magnetic saturation (<em>M<sub>s</sub></em>) of 6.49 and 0.13 emu/g, respectively. Finally, BiFeO<sub>3</sub> has been identified as ideal for energy storage electronic devices in higher frequency regions, while BiFe<sub>0.90</sub>La<sub>0.10</sub>O<sub>3</sub> is more suitable for lower frequency applications.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100742"},"PeriodicalIF":5.5,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Single-stage separation and quantitation of anionic and cationic forms of transition metals from environmental water using organo-functionalized ordered mesoporous silica","authors":"Natalia Kobylinska","doi":"10.1016/j.ceja.2025.100741","DOIUrl":"10.1016/j.ceja.2025.100741","url":null,"abstract":"<div><div>A simple methodology was proposed for the separation and quantitation of toxic heavy metals (Pb<sup>2+</sup>, Cr<sup>3+</sup>, Cu<sup>2+</sup>, Mn<sup>2+</sup>, Cd<sup>2+</sup>, CrO<sub>4</sub><sup>2-</sup> and MnO<sub>4</sub><sup>-</sup>) in the fixed-bed column and batch adsorption experiments using functionalised mesoporous silicas. For this reason, SBA-15 silica with covalently immobilized ethylenediaminetriacetic acid (referred to as MS/EDTA) and quaternary ammonium groups (labelled to as MS/QAS) has been successfully prepared using a post-synthesis approach. The MS/EDTA and MS/QAS samples were characterized by N<sub>2</sub> adsorption/desorption isotherms, FTIR, XPS, SEM and TEM measurements, elemental and titrimetric analysis. Functionalized materials of the SBA-15 type was shown to have a specific surface area of approximately 715-745 m<sup>2</sup>/g. This kind of materials was applied for the adsorption process at static and dynamic conditions after corresponding optimizations with respect to pH values, amount of adsorbent, contact time, interfering compounds on the removal of target ions. All adsorbents exhibit fast adsorption rate and high adsorption capacity. Excellent maximum adsorption capacity of MS/EDTA sample was observed for Pb(II) and Cr(III) ions (until 1.55 mmol/g) at pH 6.5. The K<sub>d</sub> values of target cations was reached up to 1.8×10<sup>4</sup> mL/g. Interfering effects caused by the presence of alkali metal ions, earth alkali metal ions and some anions were negligible. To reused of adsorbents during four-five cycles with high adsorption capacity using HNO<sub>3</sub> solution (1 M). At the same time, the surface area and concentration (∼4 %) of functional groups on the surface of the adsorbents unchanged after four regeneration cycles. The MS/QAS sample was applied to the selective and efficient removal of Cr(VI) and Mn(VII) ions. The extraction of CrO<sub>4</sub><sup>2-</sup> ions at pH 7.5 by the MS/QAS adsorbent is practically unchanged in the presence of other divalent anions such as CO<sub>3</sub><sup>2-</sup> and SO<sub>4</sub><sup>2-</sup>. The results indicated that the adsorption capacity of the column was lower than that of the batch system. The synthesized mesoporous materials are used as effective energy-efficient adsorbents for simultaneous removal of heavy metal ions in various forms from natural water samples.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100741"},"PeriodicalIF":5.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Raúl García-Cervillla, David Lorenzo, Arturo Romero, Aurora Santos
{"title":"Comparative analysis of SEAR, ISCO, and S-ISCO for remediation of aged hydrocarbon-contaminated soils","authors":"Raúl García-Cervillla, David Lorenzo, Arturo Romero, Aurora Santos","doi":"10.1016/j.ceja.2025.100733","DOIUrl":"10.1016/j.ceja.2025.100733","url":null,"abstract":"<div><div>This study evaluates the effectiveness of Surfactant-Enhanced Aquifer Remediation (SEAR), In Situ Chemical Oxidation (ISCO), and Surfactant-Enhanced In Situ Chemical Oxidation (S-ISCO) for remediating aged fuel-contaminated soil. Experiments were conducted using real sandy loam soil contaminated with 5556 mg/kg of Total Petroleum Hydrocarbons (TPHs). The study employed two surfactants: anionic sodium dodecyl sulfate (SDS) and nonionic E-Mulse® 3 (E3), both at 5 g/L, and sodium persulfate (PS) 40 g/L activated with 13.5 g/L NaOH as the oxidant.</div><div>Column experiments were performed, simulating field conditions by injecting six pore volumes (PV 26-29 mL each) of treatment solutions over 480 h. SEAR tests achieved TPH removals of 12.3 % with SDS and 14.8 % with E3, highlighting effective desorption but necessitating more PVs or higher surfactant concentration and on-site treatment of extracted solutions. ISCO with alkaline PS removed 23 % of TPHs, indicating limited oxidant access to sorbed contaminants. S-ISCO showed superior performance, achieving TPH removals of 44.2 % with SDS and 39.3 % with E3, eliminating the need for contaminated effluent extraction and treatment on site. The use of SDS demonstrated lower non-productive oxidant consumption and slighter oxidation efficiency enhancement. These findings underscore S-ISCO potential for improving TPH degradation, optimizing resource use, and reducing operational complexities in field applications.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100733"},"PeriodicalIF":5.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antoinette Maarawi Chidraoui , Zoé Anxionnaz-Minvielle , Pierre Coste , Nathalie Di Miceli Raimondi , Michel Cabassud
{"title":"Mass transfer investigation in liquid-liquid two-phase flow in a corrugated millichannel","authors":"Antoinette Maarawi Chidraoui , Zoé Anxionnaz-Minvielle , Pierre Coste , Nathalie Di Miceli Raimondi , Michel Cabassud","doi":"10.1016/j.ceja.2025.100739","DOIUrl":"10.1016/j.ceja.2025.100739","url":null,"abstract":"<div><div>The present analysis investigates mass transfer phenomena occurring in liquid-liquid two-phase flow within 2D-meandering millichannels of varying dimensions (2, 3, and 4 mm). Enhanced comprehension is facilitated by previous flow visualizations that led to establishing a flow patterns map for these millichannels. The overall mass transfer coefficient (k<sub>L</sub>a) is experimentally evaluated by measuring the solute concentration transferred between phases, selectively extracted from the organic phase at the reactor outlet. Additionally, to anticipate mass transfer coefficient variations in zigzag channels of various sizes at varying flowrates, aligning with industrial requirements, experimental k<sub>L</sub>a results are correlated with observed flow regimes. Consequently, operational conditions and fluid system properties enable flow regime identification from the previously established flow map, facilitating corresponding mass transfer correlation identification. This innovative approach integrates flow study and mass transfer analysis within millireactors.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100739"},"PeriodicalIF":5.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dan Liu , Haojie Qian , Fei Mao , Huibin Yin , Gechuanqi Pan , Zhuodong Sun , Yongjun Xu
{"title":"Design of halide-free and metal-free carbon nitrogen catalyst for the cycloaddition of CO2 into epoxides","authors":"Dan Liu , Haojie Qian , Fei Mao , Huibin Yin , Gechuanqi Pan , Zhuodong Sun , Yongjun Xu","doi":"10.1016/j.ceja.2025.100734","DOIUrl":"10.1016/j.ceja.2025.100734","url":null,"abstract":"<div><div>The cycloaddition reaction of carbon dioxide (CO<sub>2</sub>) with epoxides represents one of the most promising industrial pathways for CO<sub>2</sub> conversion. Herein, a novel halide- and metal-free carbon nitrogen (CN) catalyst was synthesized through the self-assembly of an oligomer derived from melamine as a precursor, employing a programmed heating calcination method. This catalytic system effectively circumvents the issue of halogen-induced corrosion in process equipment, which is commonly associated with halogen-based co-catalysts, thereby significantly reducing the environmental burden of halogen waste. The prepared catalyst is characterized using various characterization techniques, such as CO<sub>2</sub>-TPD, TEM and XPS. The characterization results revealed that the CN catalyst contains abundant pyridine nitrogen and hydroxyl species, which function as Lewis basic and Lewis acid active sites to facilitate the cycloaddition reactions of CO<sub>2</sub>. Additionally, Crystal Orbital Hamilton Population (COHP) analysis demonstrated that the CN catalyst exhibits superior activation of epichlorohydrin (ECH) compared to other catalysts, highlighting its enhanced catalytic efficiency. Catalytic performance evaluations demonstrated that the CN-300 catalyst achieved an exceptional cyclic carbonate yield of 99 %. Remarkably, the CN-300 catalyst also exhibited outstanding recyclability, maintaining high catalytic performance even after five consecutive cycles.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100734"},"PeriodicalIF":5.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yogita M. Shirke , Daehwan Kang , Gyudong Lee , ChaeHwa Kim , Ji Hyun Lee , Yeonsang Kim , Byungil Hwang , Song Jun Doh , Ki Ro Yoon
{"title":"Impact of stretching conditions on microstructure and filtration efficiency of ePTFE membranes","authors":"Yogita M. Shirke , Daehwan Kang , Gyudong Lee , ChaeHwa Kim , Ji Hyun Lee , Yeonsang Kim , Byungil Hwang , Song Jun Doh , Ki Ro Yoon","doi":"10.1016/j.ceja.2025.100740","DOIUrl":"10.1016/j.ceja.2025.100740","url":null,"abstract":"<div><div>Expanded polytetrafluoroethylene (ePTFE) membranes, produced by stretching extruded preform sheet followed by heat treatment, have been widely utilized in various separation and purification processes, establishing itself as a key standard for eco-friendly and sustainable development. While the process may seem straightforward, fabricating high-quality ePTFE membranes with uniform thickness, proper pore distribution, a large effective surface area, and reproducibility remains a significant challenge. In this study, the effects of key parameters such as stretching ratio, temperature, annealing time, and stretching speed on microstructural changes were systematically examined that are difficult to observe in continuous industrial manufacturing. Using specialized stretching equipment with a real-time monitoring, these parameters impact the microstructures, porosity, thickness, and air permeability of ePTFE membranes were explored. Notably, stretching speed significantly influences the quality of ePTFE membranes, achieving an ultrathin and highly uniform membrane at a stretching speed of 50 mm s<sup>-1</sup> under local heating at 320 °C, resulting in excellent air filtration performance. These findings will provide valuable insights for establishing manufacturing processes for high-quality ePTFE membranes and expanding their application, not only in high-efficiency filtration but also across a variety of industries.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100740"},"PeriodicalIF":5.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808263","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}
{"title":"Study on the coalesce behaviors of dual droplets adhering to inclined surfaces under airflow conditions","authors":"Xiaoxiang Li, Xing Xu, Xin Chen, Fei Dong","doi":"10.1016/j.ceja.2025.100738","DOIUrl":"10.1016/j.ceja.2025.100738","url":null,"abstract":"<div><div>In order to investigate the coalesce behaviors of double liquid droplets adhering to an inclined surface, this study employed the CLSVOF (Coupled Level Set and Volume of Fluid) method to establish a three-dimensional model of droplet motion in an air flow environment. The effects of different parameters such as droplet size, air flow velocity, and dimensionless distance between droplets on the coalesce characteristics of the droplets were studied in this paper. Through numerical simulation of the coalesce process of double liquid droplets in an air flow environment, the coalesced process, the behavior characteristics of the droplets before coalescence, and the fitting relationship between coalesce time and the dimensionless number <em>Re</em> were explored. The results indicate that an increase in droplet size leads to an increase in the inertial force of the droplet sliding along the surface. With an increase in air flow velocity, the speed of droplets during sliding will increase, resulting in a continuous reduction in coalesce time. When the dimensionless distance between droplets increases, the initial movement of the droplets is delayed, and the parameter fluctuations between upstream and downstream droplets stabilize in the later. As the Reynolds number increases, the coalesce time of the droplets continuously decreases.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100738"},"PeriodicalIF":5.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Role of microalgae and activated sludge in the removal of fats, oils, and grease (FOG) in municipal wastewater","authors":"Fahed Javed, Sulaiman Al-Zuhair","doi":"10.1016/j.ceja.2025.100737","DOIUrl":"10.1016/j.ceja.2025.100737","url":null,"abstract":"<div><div>The increasing demand for sustainable wastewater treatment has driven a shift towards resource recovery, focusing on extracting valuable materials such as energy, nutrients, and biomass. A critical challenge in this domain is the effective removal of fats, oils, and grease (FOG), which can obstruct plant infrastructure and impede biological treatment processes. This study explores the potential of two microalgae strains, <em>Chlorella vulgaris,</em> and <em>Phormidium keutzingium</em>, for FOG and nutrient removal in municipal wastewater. Additionally, it examines the growth performance and nutrient removal efficiency of these microalgae strains when cultured both individually and in symbiosis with activated sludge (AS). The research evaluates the biochemical composition of the resulting biomass, including proteins, carbohydrates, and lipids, to determine their feasibility for value-added applications. Results showed that symbiotic cultivation with AS significantly enhances biomass productivity, achieving up to 247.68 ± 0.64 mg/L.day with 99 % FOG removal. This underscores the synergistic relationship between microalgae and AS, which not only optimized pollutants removal but also enhances biomass yield. The findings provide valuable insights into the utilization of microalgae-AS systems for wastewater treatment processes, contributing to reduced energy consumption and enhanced sustainability. By integrating these approaches, the study supports circular economy objectives in wastewater management, paving the way for improved resource recovery and the development of sustainable value chains.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"22 ","pages":"Article 100737"},"PeriodicalIF":5.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}