Oscar Paz-Vázquez, Blanca Alejandra Juárez-Ortega, Cinthia Erika Sánchez-Fuentes, Hugo Alberto Barrera-Huertas, Ivonne Berenice Bonilla-Martínez, Dulce Estefanía Nicolás-Álvarez, Tomás Alejandro Fregoso-Aguilar, Christian Damián Hernández-Reyes, Óscar Jesús Prado-Rubianes, Jorge Alberto Mendoza-Pérez
{"title":"Hybrid Photocatalytic/Biological Reactor for the Treatment of Acetone-Contaminated Gas Streams","authors":"Oscar Paz-Vázquez, Blanca Alejandra Juárez-Ortega, Cinthia Erika Sánchez-Fuentes, Hugo Alberto Barrera-Huertas, Ivonne Berenice Bonilla-Martínez, Dulce Estefanía Nicolás-Álvarez, Tomás Alejandro Fregoso-Aguilar, Christian Damián Hernández-Reyes, Óscar Jesús Prado-Rubianes, Jorge Alberto Mendoza-Pérez","doi":"10.1021/acsengineeringau.6c00008","DOIUrl":null,"url":null,"abstract":"<p>Atmospheric pollution caused by volatile organic compounds\r\n(VOCs),\r\nsuch as acetone, poses a significant environmental challenge because\r\nof their toxicity and persistence. This study evaluated a hybrid photocatalytic/biological\r\nsystem for the treatment of acetone-contaminated gas streams, combining\r\na UV-activated graphene oxide photocatalytic reactor with a biofilter\r\npacked with plant aerenchyma inoculated with activated sludge. The\r\nsystem operated for 15 weeks under controlled conditions, achieving\r\na maximum removal efficiency of 80% and an overall average efficiency\r\nof 60.98%. In silico studies indicated viable microbial metabolic\r\npathways for acetone, and the low binding energy of the fungus <em>Penicillium chrysogenum</em> suggests a complementary\r\nrole in the degradation of byproducts generated in the photocatalytic\r\nstage. The synergistic combination of advanced oxidation and microbial\r\nbiodegradation enabled an effective pollutant removal. Microbial succession\r\nwas observed during operation with an increase in fungus tolerance\r\nto adverse conditions. These results demonstrate the technical feasibility\r\nof the hybrid system for the sustainable treatment of VOC-laden gas\r\nemissions and suggest its potential scalability for industrial applications.</p>","PeriodicalId":29804,"journal":{"name":"ACS Engineering Au","volume":"6 3","pages":"477–489"},"PeriodicalIF":9.0000,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Engineering Au","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsengineeringau.6c00008","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/6/8 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Atmospheric pollution caused by volatile organic compounds
(VOCs),
such as acetone, poses a significant environmental challenge because
of their toxicity and persistence. This study evaluated a hybrid photocatalytic/biological
system for the treatment of acetone-contaminated gas streams, combining
a UV-activated graphene oxide photocatalytic reactor with a biofilter
packed with plant aerenchyma inoculated with activated sludge. The
system operated for 15 weeks under controlled conditions, achieving
a maximum removal efficiency of 80% and an overall average efficiency
of 60.98%. In silico studies indicated viable microbial metabolic
pathways for acetone, and the low binding energy of the fungus Penicillium chrysogenum suggests a complementary
role in the degradation of byproducts generated in the photocatalytic
stage. The synergistic combination of advanced oxidation and microbial
biodegradation enabled an effective pollutant removal. Microbial succession
was observed during operation with an increase in fungus tolerance
to adverse conditions. These results demonstrate the technical feasibility
of the hybrid system for the sustainable treatment of VOC-laden gas
emissions and suggest its potential scalability for industrial applications.
期刊介绍：
）ACS Engineering Au is an open access journal that reports significant advances in chemical engineering applied chemistry and energy covering fundamentals processes and products. The journal's broad scope includes experimental theoretical mathematical computational chemical and physical research from academic and industrial settings. Short letters comprehensive articles reviews and perspectives are welcome on topics that include:Fundamental research in such areas as thermodynamics transport phenomena (flow mixing mass & heat transfer) chemical reaction kinetics and engineering catalysis separations interfacial phenomena and materialsProcess design development and intensification (e.g. process technologies for chemicals and materials synthesis and design methods process intensification multiphase reactors scale-up systems analysis process control data correlation schemes modeling machine learning Artificial Intelligence)Product research and development involving chemical and engineering aspects (e.g. catalysts plastics elastomers fibers adhesives coatings paper membranes lubricants ceramics aerosols fluidic devices intensified process equipment)Energy and fuels (e.g. pre-treatment processing and utilization of renewable energy resources; processing and utilization of fuels; properties and structure or molecular composition of both raw fuels and refined products; fuel cells hydrogen batteries; photochemical fuel and energy production; decarbonization; electrification; microwave; cavitation)Measurement techniques computational models and data on thermo-physical thermodynamic and transport properties of materials and phase equilibrium behaviorNew methods models and tools (e.g. real-time data analytics multi-scale models physics informed machine learning models machine learning enhanced physics-based models soft sensors high-performance computing)
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