Chemical Engineering and Processing - Process Intensification最新文献_第8页

Mitigating heat transfer limitation in packed bed reactors through using a novel internal 利用新型内部结构减轻填料床反应器的传热限制

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-02-01 Epub Date: 2025-12-09 DOI: 10.1016/j.cep.2025.110654

Junqi Weng , Zhenli Lin , Zhongming Shu , Guanghua Ye , Xinggui Zhou

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Green solvent selection for terpene extraction from hemp 大麻中萜烯提取的绿色溶剂选择

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-02-01 Epub Date: 2025-12-14 DOI: 10.1016/j.cep.2025.110657

Miguel A. Santaella , Oscar Y. Buitrago-Suescún , Alvaro Orjuela

{"title":"Green solvent selection for terpene extraction from hemp","authors":"Miguel A. Santaella , Oscar Y. Buitrago-Suescún , Alvaro Orjuela","doi":"10.1016/j.cep.2025.110657","DOIUrl":"10.1016/j.cep.2025.110657","url":null,"abstract":"<div><div>This study aimed to develop a systematic method for selecting sustainable solvents for extracting terpenes from hemp. Initially, solvents were ranked using a color-coded system from the pharmaceutical industry, and renewability and affinity metrics, resulting in 16 pre-selected candidates. A multicriteria screening followed, incorporating economic, environmental, safety, and occupational health aspects to calculate a Sustainable Cumulative Index (SCI). Based on physicochemical properties and conceptual extraction design, preliminary estimates of mass, energy, and waste intensity enabled the identification of viable green solvents. Data Envelopment Analysis (DEA) was used to define a final set for further experimental testing. Ethyl acetate, ethanol, <span>d</span>-limonene, and water were selected and compared under standardized Soxhlet extractions of hemp threshing residues. Extractable matter and terpene content in processed biomass were 14.4 ± 3.1 wt.%, and 0.0725 wt.%., respectively. Ethanol, had low terpene yield (20.5%) and involved high energy demands in the recovery process. Ethyl acetate showed the highest yield (100%) and a full terpene profile. <span>d</span>-limonene exhibited a high yield (92.2%) but it might face separation challenges due to similar volatility to target monoterpenes and high boiling point. The developed method provides a structured approach to solvent selection and can support the design of green solvents.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"220 ","pages":"Article 110657"},"PeriodicalIF":3.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145788966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure-induced flow modulation in static mixer plug flow reactors for gas–liquid contact intensification in ozone-based oxidation 臭氧基氧化中气液接触强化的静态混合器塞流反应器结构诱导流动调制

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-02-01 Epub Date: 2025-12-09 DOI: 10.1016/j.cep.2025.110655

Shanzhi Yuan , Lvliang Wang , Xuejing Yang , Yuanyuan Qian , Yanxia Xu

{"title":"Structure-induced flow modulation in static mixer plug flow reactors for gas–liquid contact intensification in ozone-based oxidation","authors":"Shanzhi Yuan , Lvliang Wang , Xuejing Yang , Yuanyuan Qian , Yanxia Xu","doi":"10.1016/j.cep.2025.110655","DOIUrl":"10.1016/j.cep.2025.110655","url":null,"abstract":"<div><div>Limited ozone solubility hampers gas–liquid mass transfer in ozone-based advanced oxidation processes (AOPs), particularly in continuous flow reactors. Herein, high-resolution computational fluid dynamics simulations were integrated with a multi-objective optimisation framework to investigate the influence of geometric parameters on hydrodynamics, bubble dynamics and energy consumption in a static mixer plug flow reactor. Suboptimal gas inlet configurations induced buoyancy-driven gas holdup and backflow, substantially impairing dispersion and mixing uniformity, as indicated by the relative standard deviation (RSD) of gas-phase and bubble size distributions. Optimised inlet position and diameter promoted early fluid bifurcation and shear-induced bubble breakup, improving micro- and macro-mixing. Twisting elements generated localised velocity peaks and strong pressure gradients, efficiently converting pressure into kinetic energy and yielding radially stratified, symmetrical flows, facilitating gas–liquid contact. The number of mixing elements and downstream zone length governed mixing quality and pressure drop, and inlet parameters critically regulated bubble characteristics. The optimised configuration achieved an RSD of 0.790 and a pressure drop of 6435 Pa, reducing mixing heterogeneity and energy consumption by 13.6% and 18.1%, respectively, and yielding a favourable balance between mixing efficiency and energy use. This study establishes a quantitative structure–flow–performance relationship, providing a foundation for scalable, energy-efficient multi-phase reactor design for ozone-based AOPs, along with practical strategies for process intensification and sustainable water treatment.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"220 ","pages":"Article 110655"},"PeriodicalIF":3.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145788967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Process intensification strategies for metal organic framework-based membrane photocatalysis in industrial wastewater treatment : A review 金属有机框架膜光催化在工业废水处理中的工艺强化策略综述

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-11-07 DOI: 10.1016/j.cep.2025.110618

Meitri Bella Puspa, Tutuk Djoko Kusworo, Andri Cahyo Kumoro, Aji Prasetyaningrum, Shalahudin Nur Ayyubi, Luthfi Kurnia Dewi, Muhammad Naufal Luqmanulhakim, Muallim Syahrir

{"title":"Process intensification strategies for metal organic framework-based membrane photocatalysis in industrial wastewater treatment : A review","authors":"Meitri Bella Puspa, Tutuk Djoko Kusworo, Andri Cahyo Kumoro, Aji Prasetyaningrum, Shalahudin Nur Ayyubi, Luthfi Kurnia Dewi, Muhammad Naufal Luqmanulhakim, Muallim Syahrir","doi":"10.1016/j.cep.2025.110618","DOIUrl":"10.1016/j.cep.2025.110618","url":null,"abstract":"<div><div>Industrial wastewater often comprises diverse and recalcitrant pollutants that challenge conventional treatment approaches. Membrane photocatalysis, a hybrid technique that integrates membrane separation and photocatalytic degradation, has garnered increasing attention for its potential to address these complexities. Metal–Organic Frameworks (MOFs), known for their high porosity, tunable chemistry, and large surface area, have emerged as promising photocatalysts within such systems. However, limitations such as suboptimal photocatalytic performance, membrane fouling, and stability concerns under operational conditions remain major barriers to large-scale implementation. While numerous studies have explored MOF-based membranes, a focused investigation into process intensification (PI) strategies specifically targeting industrial applications is lacking. This review uniquely highlights and synthesizes diverse PI approaches including metal/non-metal doping, MOFs functionalization, heterojunction engineering, advanced light management, and reactor system design to enhance MOFs-based membrane photocatalysis. The novelty lies in consolidating these strategies within the industrial wastewater context, emphasizing not only performance enhancement but also scalability and cost-effectiveness. This work contributes toward bridging laboratory innovations with real-world applications, especially in resource-constrained settings. Furthermore, the study aligns with global sustainability priorities, notably SDGs 6, 12, and 14 by offering critical insights for stakeholders to develop efficient, environmentally sustainable, and cost-effective strategies for industrial water treatment.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110618"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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CFD evaluation of a microchannel reactor for ammonia synthesis using a Ruthenium-based catalyst 基于钌基催化剂的氨合成微通道反应器的CFD评价

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-11-08 DOI: 10.1016/j.cep.2025.110624

Leonardo Bravo , Camilo Rengifo Gutierrez , Martha Cobo , Manuel Figueredo

{"title":"CFD evaluation of a microchannel reactor for ammonia synthesis using a Ruthenium-based catalyst","authors":"Leonardo Bravo , Camilo Rengifo Gutierrez , Martha Cobo , Manuel Figueredo","doi":"10.1016/j.cep.2025.110624","DOIUrl":"10.1016/j.cep.2025.110624","url":null,"abstract":"<div><div>This work evaluates the potential of microchannel reactors (MCR) for ammonia synthesis using ruthenium-based catalysts through computational fluid dynamics (CFD) modelling. A comprehensive CFD framework was developed that integrates mass and energy balances with modified Temkin-Pyzhev kinetics, and validated against experimental data from a packed-bed reactor (PBR) with <5 % error. The validated model was then applied to MCR configurations to assess the influence of operating conditions and reactor geometry. Results show that MCRs achieve up to 165 % higher ammonia productivity than PBRs under optimal conditions (100 bar, 430 °C), owing to the enhanced heat and mass transfer. Parametric studies identified temperature as the most critical operating parameter, while pressure had a secondary effect. Furthermore, increasing the catalytic layer thickness improved ammonia yields, although there are potential mass-transfer limitations. These findings demonstrate that MCRs can provide significant energy-efficiency gains and support decentralised ammonia production, highlighting their promise as a sustainable alternative to conventional Haber-Bosch technology.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110624"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A perspective on process intensification in the textile industry: A pathway towards sustainable apparel sector 纺织业过程集约化的观点：通往可持续服装行业的途径

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-11-16 DOI: 10.1016/j.cep.2025.110630

Sagnik Chowdhury Shanko , Md. Mizanur Rahman , Mohidus Samad Khan

{"title":"A perspective on process intensification in the textile industry: A pathway towards sustainable apparel sector","authors":"Sagnik Chowdhury Shanko , Md. Mizanur Rahman , Mohidus Samad Khan","doi":"10.1016/j.cep.2025.110630","DOIUrl":"10.1016/j.cep.2025.110630","url":null,"abstract":"<div><div>The apparel sector, despite playing an important role in economic development and employment generation around the world, poses significant sustainability challenges due to being highly resource-intensive and contributing to severe pollution of the environment. Therefore, this sector faces growing pressure from stakeholders to adopt cleaner production practices throughout the value chain, aiming to reduce resource consumption and to improve environmental impacts. Process Intensification (PI) tackles these challenges by redesigning unit operations and production strategies across the production processes. This article presents a novel viewpoint through a structured analysis of Process Intensification applications across textile processing stages, extending the scope toward waste minimization, hazardous chemical substitution, and resource recovery. Key textile processing stages, including yarn production and preparation, weaving, and wet processing, are analyzed with respect to the integration of different PI technologies such as compact spinning, foam sizing, pre-wet sizing, multi-phase loom, supercritical CO<sub>2</sub> dyeing, plasma treatment, bio-based dyeing, chemical recovery, and AI-based quality inspection. The article explores the technical foundations, operational benefits and challenges of these innovations. Compared to traditional technologies, counterpart PI technologies can reduce energy input, water consumption, chemical consumption, and GHG emissions by up to 86%, 100%, 95% and 84%, respectively. Along with policy frameworks, strategic investment, and capacity building, PI serves as a strategic catalyst in sustainable apparel manufacturing by optimizing resource, automation, redesigning recipes, improving productivity, and reducing pollution through recycling and upcycling. This article underscores the critical role of PI in fostering cleaner production and shaping the future of textile manufacturing.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110630"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic integration of sonication and cold plasma for intensified food processing: Mechanisms, applications, limitations, and future Prospects 超声和冷等离子体在强化食品加工中的协同整合：机制、应用、局限性和未来展望

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-11-18 DOI: 10.1016/j.cep.2025.110631

Chirantan Sandip Saigaonkar , Sandhya R Shewale , Uday S Annapure

{"title":"Synergistic integration of sonication and cold plasma for intensified food processing: Mechanisms, applications, limitations, and future Prospects","authors":"Chirantan Sandip Saigaonkar , Sandhya R Shewale , Uday S Annapure","doi":"10.1016/j.cep.2025.110631","DOIUrl":"10.1016/j.cep.2025.110631","url":null,"abstract":"<div><h3>Background</h3><div>Advancements in food processing aim to preserve nutrient and bioactive integrity while enhancing microbiological safety without relying on thermal methods. Sonication-Assisted Cold Plasma (SACP) integrates mechanical ultrasound forces with reactive plasma chemistry to overcome limitations of individual treatments, such as limited penetration depth and uneven effects, making it a promising approach for preserving food quality and safety.</div></div><div><h3>Methods</h3><div>A systematic literature review was conducted following PRISMA 2020 guidelines. Peer-reviewed research articles published between January 2020 and May 2025 were identified from electronic databases, including Scopus, PubMed, and ScienceDirect. Studies evaluating combined ultrasound and cold plasma treatments on food dehydration, microbial inactivation, extraction, and protein modification were selected for narrative synthesis.</div></div><div><h3>Results</h3><div>SACP exhibited up to 47 % reduction in drying time, achieving over 3-log microbial load reductions. Mechanistically, ultrasound enhances cavitation and mass transfer, while cold plasma generates reactive species that oxidize microbial cells and modify food macromolecules. Challenges remain in scaling technology for industrial throughput, standardizing treatment protocols, and assessing byproduct safety and long-term product stability.</div></div><div><h3>Conclusions</h3><div>The synergistic integration of ultrasound and cold plasma presents a promising non-thermal approach for food processing with demonstrated efficiency, safety, and preservation of food quality. Future efforts should prioritize protocol harmonization, real-time process control, comprehensive safety evaluation, and economic feasibility to enable commercial adoption and sustainable food manufacturing.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110631"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of oxidation of lyocell fiber under different bleaching conditions 不同漂白条件下莱赛尔纤维氧化性能的研究

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-11-12 DOI: 10.1016/j.cep.2025.110628

Parv Pandya , Payal Tyagi , Satesh Sutar , Archana Unnikrishnan

{"title":"Study of oxidation of lyocell fiber under different bleaching conditions","authors":"Parv Pandya , Payal Tyagi , Satesh Sutar , Archana Unnikrishnan","doi":"10.1016/j.cep.2025.110628","DOIUrl":"10.1016/j.cep.2025.110628","url":null,"abstract":"<div><div>Lyocell fibre, a regenerated cellulosic material valued for its mechanical strength and sustainability, requires bleaching to enhance whiteness and dyeability. This study investigated the oxidative behaviour of Lyocell under sodium hypochlorite bleaching by systematically varying concentration (0.01–0.05%), duration (1–5 min), temperature (30–60°C), and pH (5–10). A full factorial experimental design (2⁴, 32 runs) with ANOVA analysis was applied with model significance confirmed at p < 0.05 (R² > 0.95) to evaluate both main and interaction effects. The key indicators—intrinsic viscosity, copper number, whiteness index, tensile properties, and crystallinity (XRD)—were measured to quantify fibre oxidation and performance.</div><div>Results showed that pH strongly governed oxidation behaviour through HOCl/OCl⁻ speciation. Near-neutral pH caused higher viscosity loss and aldehyde formation due to increased HOCl activity, whereas alkaline pH moderated degradation. Concentration and temperature had the most significant effects on viscosity loss (p < 0.05), confirming their dominant role. The optimum condition (0.03 % NaOCl, 2–3 min, 45°C, pH 8.5) achieved about 28 % whiteness improvement while retaining over 85 % of original strength. XRD analysis confirmed a slight rise in crystallinity from selective removal of amorphous cellulose.</div><div>This study is among the first to apply factorial design to Lyocell bleaching, establishing a low-damage, statistically validated bleaching window that enhances whiteness with minimal oxidation and supports sustainable industrial application.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110628"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced separation performance of waste catalyst particles: CFD-DEM optimization of the multilayer microchannel relative to the homogeneous microchannel 提高废催化剂颗粒的分离性能：多层微通道相对于均匀微通道的CFD-DEM优化

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-10-24 DOI: 10.1016/j.cep.2025.110603

Xiaoxiang Han , Dingliang Xu , Li Dai , Lin Zeng , Wenjie Lv , Hualin Wang

{"title":"Enhanced separation performance of waste catalyst particles: CFD-DEM optimization of the multilayer microchannel relative to the homogeneous microchannel","authors":"Xiaoxiang Han , Dingliang Xu , Li Dai , Lin Zeng , Wenjie Lv , Hualin Wang","doi":"10.1016/j.cep.2025.110603","DOIUrl":"10.1016/j.cep.2025.110603","url":null,"abstract":"<div><div>The separation performance of microchannel technology was investigated for multi-sized waste catalyst particles (100-190 μm) in petroleum refining processes. A coupled computational fluid dynamics and discrete element method approach was employed to compare multilayer and homogeneous microchannel structures, with optimization conducted for enhanced separation efficiency. Results demonstrated superior performance of the multilayer structure in separating smaller particles, achieving total separation efficiencies of 72.4 %, 74.4 %, 97.4 %, and 99.4 % for particles measuring 100 μm, 115 μm, 130 μm, and 145 μm in diameter respectively. These values exceeded those of homogeneous microchannels by 25 %, 22 %, 40 %, and 38 % respectively. The multilayer configuration exhibited high contaminant loading capacity through uniform particle retention across multiple levels, contrasting with the homogeneous structure's predominant particle accumulation (> 70 %) in initial stages that promoted surface filtration and necessitated frequent maintenance. Comparative analysis revealed the multilayer microchannel's dual advantages in energy efficiency and separation performance: At equivalent separation efficiency, it maintained a 1263 Pa pressure drop reduction compared to homogeneous systems; under similar pressure, separation efficiency increased by 40 %. This study provides the first comparison of multilayer and homogeneous microchannel separators for petroleum refining waste catalysts, proposing a strategy to improve efficiency and extend operation cycles, guiding industrial applications.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110603"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145413213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Total suspended solids as a simplified metric for predicting optimized dissolved oxygen in wastewater treatment: Comparing process-based and artificial neural network models 总悬浮固体作为预测废水处理中溶解氧优化的简化度量：比较基于过程的模型和人工神经网络模型

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-01-01 Epub Date: 2025-10-15 DOI: 10.1016/j.cep.2025.110599

Reshmi Das , Vishnudatha Venu , Lakshminarayana Rao

{"title":"Total suspended solids as a simplified metric for predicting optimized dissolved oxygen in wastewater treatment: Comparing process-based and artificial neural network models","authors":"Reshmi Das , Vishnudatha Venu , Lakshminarayana Rao","doi":"10.1016/j.cep.2025.110599","DOIUrl":"10.1016/j.cep.2025.110599","url":null,"abstract":"<div><div>Freshwater scarcity is an escalating global issue, thus requiring effective solutions such as water reuse. However, achieving water reuse depends on efficient wastewater treatment, which is highly energy intensive. In a typical wastewater treatment plant (WWTP), aeration accounts for the majority of the energy consumption, which is generally not optimized according to the influent flow and water quality characteristics. This study investigates the potential of artificial neural networks (ANNs) to predict optimized dissolved oxygen (DO) levels in aeration tank for reducing energy consumption in a sewage treatment plant (STP). Using experimentally collected historical data from the already-optimized Chikkabanavara STP in Bangalore, two ANN models were developed and compared, one using mass flow rate of total suspended solids (TSS) as the sole input parameter, and another using a combination of mass flow rates of TSS, biochemical oxygen demand (BOD), and chemical oxygen demand (COD) as inputs. Both models exhibited similar predictive performance for DO with robust accuracy (Robust R² = 0.99, R² = 0.87). The predicted DO was proved to effectively treat the wastewater, and it was validated using a digital twin of STP by process-based BioWin simulations. The results highlight that using TSS as a proxy for COD and BOD not only simplifies monitoring but also enhances process control, ensuring efficient operation and compliance with discharge standards.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"219 ","pages":"Article 110599"},"PeriodicalIF":3.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145413211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0