Chemical Engineering and Processing - Process Intensification最新文献_第4页

Intensified continuous synthesis of ZnO-CuO antibacterial nanocomposites using spinning disc reactor 旋转圆盘反应器强化连续合成ZnO-CuO抗菌纳米复合材料

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-27 DOI: 10.1016/j.cep.2026.110725

Rinlada Sirisangsawang , Weerinda Mens , Kanokwan Ngaosuwan , Sasiradee Jantasee , Chaiyan Chaiya , Thirawat Mueansichai , Chayanoot Kositanont , Suttichai Assabumrungrat

{"title":"Intensified continuous synthesis of ZnO-CuO antibacterial nanocomposites using spinning disc reactor","authors":"Rinlada Sirisangsawang , Weerinda Mens , Kanokwan Ngaosuwan , Sasiradee Jantasee , Chaiyan Chaiya , Thirawat Mueansichai , Chayanoot Kositanont , Suttichai Assabumrungrat","doi":"10.1016/j.cep.2026.110725","DOIUrl":"10.1016/j.cep.2026.110725","url":null,"abstract":"<div><div>This research investigates the synthesis of ZnO-CuO nanocomposites via intensified co‑precipitation in a spinning disc reactor (SDR) and evaluated as antibacterial agents against both Gram-positive (<em>Staphylococcus aureus</em>) and Gram-negative (<em>Escherichia coli</em>) bacteria. The effects of key SDR operating parameters, including Zn:Cu mass ratio, disc rotational speed and total feed flow rate on the particle morphology, size distribution and antibacterial performance were evaluated. The optimal synthesis conditions were identified as a Zn:Cu mass ratio of 4:1, rotational speed of 750 rpm and precursor flow rate of 180 mL/min, resulting in ultrafine particles (8.28 ± 1.66 nm) with the narrowest distribution (span factor = 0.443) and flower petal nanoparticle morphologies due to the balance in micromixing intensity and residence time. Antibacterial tests indicated dose‑dependent inhibition, with complete suppression of <em>S. aureus</em> at 100–200 µg/mL and enhanced long‑term inhibition compared with commercial ZnO at low dosage. Notably, the nanocomposites exhibited superior antibacterial activity against <em>E. coli</em>, highlighting their strong potential as effective antibacterial agents. Overall findings demonstrated the SDR as a promising approach for the continuous, intensified and controlled synthesis of ZnO-CuO nanocomposites for advanced antimicrobial applications.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110725"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421216","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

Efficient method to filter Zn-Al-Mg galvanized liquid by using supergravity technology 采用超重力技术过滤锌铝镁镀锌液的高效方法

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2025-12-26 DOI: 10.1016/j.cep.2025.110682

Zhenyue Zhang , Yu Li , Ningjie Sun , Zhancheng Guo , Ru’an Chi , Zhe Wang , Yuan Li , Bolin Sun

{"title":"Efficient method to filter Zn-Al-Mg galvanized liquid by using supergravity technology","authors":"Zhenyue Zhang , Yu Li , Ningjie Sun , Zhancheng Guo , Ru’an Chi , Zhe Wang , Yuan Li , Bolin Sun","doi":"10.1016/j.cep.2025.110682","DOIUrl":"10.1016/j.cep.2025.110682","url":null,"abstract":"<div><div>The addition of Mg in Zn-Al-Mg coating exacerbates the suspended dross, and the suspended dross removal is benefit to achieve defect-free coatings and cost saving on cleaning dross. The Fe-containing phase was the dominant inclusion particles in Zn-Al-Mg galvanized liquid and precipitated in quantity below 550 °C in theory. The supergravity-induced filtration with Al<sub>2</sub>O<sub>3</sub> ceramic foam filter (Al<sub>2</sub>O<sub>3</sub> CFF) was able to efficiently remove the Fe-containing phase. Under the condition of 450 °C for temperature, 50 for gravity coefficient and the Al<sub>2</sub>O<sub>3</sub> CFF with porosity of 170 ppi and thickness of 20 mm, the removal ratio of Fe (<em>R<sub>Fe</sub></em>), loss percentage of Al (<em>L<sub>Al</sub></em>), loss percentage of Mg (<em>L<sub>Mg</sub></em>) and the yield of zinc (<em>Y<sub>Zn</sub></em>) reached 97 %, 40 %, 16 % and 88 %, respectively. And further the continuously supergravity-induced filtration for purification of Zn-Al-Mg galvanized liquid was achieved.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110682"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923516","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

Process intensification in tubular heat exchangers: Thermohydrodynamic analysis and entropy generation of Al2O3/R134a nanorefrigerant with twisted-tape enhancement across flow regimes 管式热交换器的过程强化：Al2O3/R134a纳米制冷剂的热流动力学分析和熵产与扭曲带增强跨流型

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-02 DOI: 10.1016/j.cep.2025.110692

Muhammad Ammar Jaya , Musabbikhah , Ahmad Imam Rifa’i , Tri Widodo Besar Riyadi , Pranowo , Budi Kristiawan , Agung Tri Wijayanta

{"title":"Process intensification in tubular heat exchangers: Thermohydrodynamic analysis and entropy generation of Al2O3/R134a nanorefrigerant with twisted-tape enhancement across flow regimes","authors":"Muhammad Ammar Jaya , Musabbikhah , Ahmad Imam Rifa’i , Tri Widodo Besar Riyadi , Pranowo , Budi Kristiawan , Agung Tri Wijayanta","doi":"10.1016/j.cep.2025.110692","DOIUrl":"10.1016/j.cep.2025.110692","url":null,"abstract":"<div><div>This study presents a computational analysis aimed at intensifying heat transfer in tubular heat exchangers through a combined passive enhancement strategy. The approach integrates twisted-tape inserts with an Al<sub>2</sub>O<sub>3</sub>/R134a nanorefrigerant at 0.1 vol% concentration to improve thermohydrodynamic performance. The novelty of this work lies in (i) establishing an entropy-based assessment framework that couples vortex generation with twisted-tape augmentation, and (ii) providing design-oriented insights for compact and multifunctional heat exchangers. Simulations were performed across Reynolds numbers ranging from 1750 to 18,000, encompassing both laminar and turbulent regimes, with twisted tapes featuring a twist ratio of 8.3, which promotes the formation of secondary vortices and enhances fluid mixing. Results indicate significant thermal enhancement: the Nusselt number increased by 106.7 % in laminar flow and 16.8 % in turbulent flow compared to the baseline. Incorporating the nanorefrigerant further amplified performance, achieving improvements of 238.3 % and 91.2 % in laminar and turbulent regimes, respectively. Entropy generation analysis revealed regime-dependent trends, with friction factors decreasing from 0.067 in laminar flow to 0.037 in turbulence due to intensified momentum transport. The superior performance under turbulence is attributed to enhanced thermal conductivity and augmented mixing mechanisms. The proposed framework offers practical guidelines for optimizing heat exchanger designs, contributing to sustainable process intensification in chemical engineering applications.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110692"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923576","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

Process intensification for e-waste valorization: Economic & energy advantages over conventional recovery routes 电子垃圾增值的过程强化：相对于传统回收路线的经济和能源优势

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-10 DOI: 10.1016/j.cep.2026.110708

Juan Gabriel Segovia-Hernández

{"title":"Process intensification for e-waste valorization: Economic & energy advantages over conventional recovery routes","authors":"Juan Gabriel Segovia-Hernández","doi":"10.1016/j.cep.2026.110708","DOIUrl":"10.1016/j.cep.2026.110708","url":null,"abstract":"<div><div>Electronic waste represents both a rapidly growing environmental challenge and a valuable secondary resource. Conventional mechanical, thermal, and hydrometallurgical recycling routes are industrially established but remain energy- and reagent-intensive and increasingly mismatched with heterogeneous feedstocks and distributed generation scenarios. Process-intensified strategies—including microwave- and ultrasound-assisted leaching, high-gravity or high-shear contactors, compact continuous-flow reactors, intensified solvent extraction, electrochemical separation, and targeted thermal pretreatment—have demonstrated significant improvements in mass transfer, dissolution kinetics, extraction selectivity, throughput density, and footprint reduction. Reported case studies show enhanced recovery of copper, nickel, cobalt, precious metals, and selected rare earth elements, alongside reduced residence times and chemical consumption relative to conventional processes. Integrated techno-economic and life-cycle assessments further indicate that intensification can amplify the lower greenhouse gas emissions typically associated with hydrometallurgical routes compared with high-temperature pyrometallurgy, although industrial deployment requires careful consideration of capital costs and electricity demand associated with intensified equipment. This work adopts process intensification as the central analytical framework to critically assess emerging e-waste valorization technologies. The review evaluates how intensified transport phenomena, functional integration, alternative energy inputs, and modular process architectures address fundamental bottlenecks of conventional recycling routes, clarifying the conditions under which laboratory-scale gains translate into industrially viable and sustainable systems.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110708"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974072","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

Geometry-driven asphaltene deposition in heterogeneous porous media micromodels 非均质多孔介质微模型中几何驱动沥青质沉积

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-26 DOI: 10.1016/j.cep.2026.110724

Raquel Machado Fedrizzi, Luciana S. Spinelli, Tiago Albertini Balbino

{"title":"Geometry-driven asphaltene deposition in heterogeneous porous media micromodels","authors":"Raquel Machado Fedrizzi, Luciana S. Spinelli, Tiago Albertini Balbino","doi":"10.1016/j.cep.2026.110724","DOIUrl":"10.1016/j.cep.2026.110724","url":null,"abstract":"<div><div>Asphaltene precipitation during oil production can lead to pore blockage, wettability alteration, and reduced reservoir productivity. Understanding how pore-scale geometry influences asphaltene deposition under flow is essential for developing predictive and mitigation strategies. In this study, we investigated asphaltene depositions using microfluidic porous media devices with distinct pore structures – well sorted, moderately sorted, and poorly sorted - designed based on sandstone grain-size distributions. Model oil systems containing extracted Brazilian asphaltenes were titrated with n-heptane to identify the onset of precipitation via FT-NIR spectroscopy. These results were validated through real-time imaging in the micromodels, revealing excellent agreement between techniques (onset ∼67.7% v/v n-heptane). High-resolution optical microscopy allowed detailed visualization of deposit morphology and flow-induced spatial patterns. Image binarization enabled quantitative assessment of area coverage, showing significantly higher deposition in well sorted geometries. Computational Fluid Dynamics (CFD) simulations in COMSOL Multiphysics reproduced the velocity field distribution in the micromodels, enabling the correlation between flow patterns and asphaltene deposition behavior. Together, these results highlight the critical role of porous media heterogeneity in controlling asphaltene precipitation and transport, and demonstrate the potential of coupled microfluidic and simulation-based approaches for evaluating organic deposition in reservoir analogs.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110724"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421164","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

Effect of DC electric fields on methane/air flame characteristics in a micro confined combustion space 直流电场对微密闭燃烧空间中甲烷/空气火焰特性的影响

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.cep.2026.110709

Li Guo , Cheng Gu , Ming Zhai , Bisheng Wang , Xun Zou , Li Liu

{"title":"Effect of DC electric fields on methane/air flame characteristics in a micro confined combustion space","authors":"Li Guo , Cheng Gu , Ming Zhai , Bisheng Wang , Xun Zou , Li Liu","doi":"10.1016/j.cep.2026.110709","DOIUrl":"10.1016/j.cep.2026.110709","url":null,"abstract":"<div><div>The application of an external electric field is widely recognized to improve flame stability significantly. However, most existing studies to date have focused on flames in the open space. For further practical applications, investigations into flame dynamics within confined spaces—where flame-wall interactions are pronounced—are imperative. In this work, we systematically investigate the dynamic characteristics of methane/air flames in a micro-plate combustor with dynamically adjustable gaps under direct current (DC) electric fields. The primary objective of this research is to elucidate the effects of electric fields on key flame characteristics, namely flame stabilization, the onset of flame repetitive extinction and ignition (FREI), and global quenching during progressive reduction of the combustion space. Experimental results demonstrate that electrode polarity plays a critical role in flame stability. A positive electric field (aligned with the flow direction) enhances stability by improving fuel-oxidizer mixing via ionic wind effects. In contrast, a negative electric field triggers flame oscillations at a frequency of 28 Hz, which arises from the interplay between counterflow and buoyancy effects. Both polarities increase FREI frequency by accelerating flame propagation, attributed to ionic wind-induced enlargement of the flame surface and localized flow modifications. Moreover, DC electric fields are found to reduce the quenching distance, with the positive and negative polarities achieving a 6.6 % reduction (from 2.12 mm to 1.98 mm) and a 20 % reduction (from 2.12 mm to 1.76 mm), respectively. These results demonstrate the effectiveness of a DC electric field in stabilizing micro-confined combustion, with the dominant mechanism arising from ionic wind effects.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110709"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023424","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

Time-dependent extraction of pectins from jabuticaba peel using hydrothermal, microwave, and ultrasound methods: Physicochemical and morphological characterization 水热法、微波法和超声法提取木瓜果胶的时间依赖性：理化和形态学表征

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.cep.2026.110717

Layanne Rodrigues da Silva , Maria Tereza Sarmento da Fonseca , Douglas Vinicius Pinheiro de Figueiredo , Larissa da Silva Santos Pinheiro , Thais Jaciane Araujo Rodrigues , Newton Carlos Santos , Josivanda Palmeira Gomes , Ana Paula Trindade Rocha

{"title":"Time-dependent extraction of pectins from jabuticaba peel using hydrothermal, microwave, and ultrasound methods: Physicochemical and morphological characterization","authors":"Layanne Rodrigues da Silva , Maria Tereza Sarmento da Fonseca , Douglas Vinicius Pinheiro de Figueiredo , Larissa da Silva Santos Pinheiro , Thais Jaciane Araujo Rodrigues , Newton Carlos Santos , Josivanda Palmeira Gomes , Ana Paula Trindade Rocha","doi":"10.1016/j.cep.2026.110717","DOIUrl":"10.1016/j.cep.2026.110717","url":null,"abstract":"<div><div>This study evaluated the influence of extraction time and method, namely hydrothermal (HDE), microwave assisted (MAE) and ultrasound assisted (UAE), on the yield and characterization of pectin extracted from jabuticaba peel. Extractions were conducted at 1, 3 and 5 min for HDE (HDE1, HDE3 and HDE5) and MAE (MAE1, MAE3 and MAE5), and at 15, 25 and 35 min for UAE (UAE15, UAE25 and UAE35). Conventional extraction (CE) at 100 °C for 35 min was used as a control. The highest yields were obtained by HDE (20.72–39.79%), particularly HDE3 (<em>p</em> < 0.05). CE produced pectin with greater structural integrity but lower yield (10.82%) (<em>p</em> < 0.05). UAE25 (20.25%) and MAE3 (29.17%) exhibited the lowest degree of esterification (DE), suggesting partial depolymerization under more intense conditions. MAE samples presented the highest galacturonic acid contents (71.53–76.36%), indicating high purity. Gel strength in UAE15 (52.82 g) and UAE25 (49.15 g) was comparable to CE (57.51 g), showing cohesive gel formation even with lower DE. Color, structural and morphological analyses revealed changes dependent on extraction time and method. Overall, appropriate time control is crucial to preserve pectin quality, and intensified processes, particularly HDE1 and HDE3, are promising sustainable alternatives to CE for the valorization of agro industrial residues.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110717"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074185","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

Innovative technologies for succinic acid fermentation: A path to sustainable production 琥珀酸发酵创新技术：可持续生产之路

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.cep.2025.110693

Diana Carolina Barriga-Gómez , Juan Federico Herrera-Ruiz , Ricardo Morales-Rodriguez , Oscar Andrés Prado-Rubio

{"title":"Innovative technologies for succinic acid fermentation: A path to sustainable production","authors":"Diana Carolina Barriga-Gómez , Juan Federico Herrera-Ruiz , Ricardo Morales-Rodriguez , Oscar Andrés Prado-Rubio","doi":"10.1016/j.cep.2025.110693","DOIUrl":"10.1016/j.cep.2025.110693","url":null,"abstract":"<div><div>Succinic acid (SA) is a high-value platform chemical increasingly produced via microbial fermentation of renewable biomass. However, conventional biotransformations often face challenges such as low productivity, carbon utilization inefficiency, and energy-intensive downstream separation processes. Process Intensification (PI) offers a transformative framework to overcome these limitations, enabling more efficient, scalable, and sustainable production systems. To evidence how PI has shaped research in this area, a bibliometric analysis was first conducted, revealing PI as a central driver that connects strains, substrates, and reactor strategies within the field. This mapping provided the foundation for the second part of the study, a critical synthesis of the literature organized around the four PI domains: spatial, thermodynamic, functional, and temporal. Dominating technologies include membrane bioreactors, immobilized cell systems, <em>in situ</em> product recovery (ISPR), consolidated bioprocessing (CBP), and dynamic feeding operations. These approaches not only enhance key performance indexes such as yield, titer, and resource efficiency but also position bioprocessing as a convergent field integrating advanced materials, AI-based control, and solvent-free separations. Special attention is given to assessing technology readiness levels (TRLs), industrial scalability, and circular economic implications. Here in, it is shown how PI enables the transition to cleaner and more efficient bioprocesses, by aligning SA production with climate targets and the broader objectives of the United Nations 2030 Agenda for Sustainable Development.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110693"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923579","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

Continuous regeneration of the draw solution in textile wastewater treatment using a combination of simultaneous forward osmosis and reverse osmosis 利用同时正渗透和反渗透相结合的方法对纺织废水中提取液进行连续再生

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.cep.2025.110689

Carmen M. Sánchez-Arévalo , Laura García-Suarez , Maria Salud Camilleri-Rumbau , Jörg Vogel , Silvia Álvarez-Blanco , M. Cinta Vincent-Vela , Beatriz Cuartas-Uribe

{"title":"Continuous regeneration of the draw solution in textile wastewater treatment using a combination of simultaneous forward osmosis and reverse osmosis","authors":"Carmen M. Sánchez-Arévalo , Laura García-Suarez , Maria Salud Camilleri-Rumbau , Jörg Vogel , Silvia Álvarez-Blanco , M. Cinta Vincent-Vela , Beatriz Cuartas-Uribe","doi":"10.1016/j.cep.2025.110689","DOIUrl":"10.1016/j.cep.2025.110689","url":null,"abstract":"<div><div>The concerning and abundant textile wastewater can be treated by forward osmosis (FO) in order to reduce its volume and simultaneously recover clean water. However, the productivity of FO depends on the concentration of the draw solution that is used. In this work, a simultaneous application of FO and reverse osmosis (RO) is proposed. The HFFO14® FO membrane (Aquaporin, Denmark) was employed to concentrate a real textile wastewater, whereas the SW30-2540 (DuPont, USA) RO membrane was employed to simultaneously regenerate the draw solution, which consisted in a 0.7 M NaCl solution, and to obtain a clean water stream. The concentration of the textile wastewater increased until 90% water recovery was achieved. The rejection values obtained for the chemical oxygen demand and total organic carbon were in the range 99 – 100%. Afterwards, the previously concentrated textile wastewater was again processed until a volume concentration factor of 16.5 was reached. Stable values of permeate flux (around 4 L/h·m<sup>2</sup>) were obtained in the FO process, whereas the reverse osmosis step permitted the maintenance of a stable conductivity in the draw solution and provided clean water as permeate.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110689"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923577","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

Numerical simulation of the mixing performance of a novel SAR micromixer with concentric circular ring mixing chamber and angle between connecting channel 具有同心环形混合室和连接通道夹角的新型SAR微混合器混合性能的数值模拟

IF 3.9 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2025-12-27 DOI: 10.1016/j.cep.2025.110685

Yubo Wang, Ping Gong

{"title":"Numerical simulation of the mixing performance of a novel SAR micromixer with concentric circular ring mixing chamber and angle between connecting channel","authors":"Yubo Wang, Ping Gong","doi":"10.1016/j.cep.2025.110685","DOIUrl":"10.1016/j.cep.2025.110685","url":null,"abstract":"<div><div>This study proposes a single-layer split-and- recombination (SAR) micromixer characterized by a concentric ring mixing chamber and adjacent connecting channels with a designed angle, aiming to enhance mixing efficiency. The performance of micromixers with varying connection channel angles (θ) was evaluated via mixing index, pressure drop, and mixing energy cost under Reynolds numbers (Re) ranging from 1 to 100. Results demonstrate that the CCRM-90° (90° connection channel angle) achieves superior mixing efficiency, exceeding 97 % at Re > 20 and consistently surpassing 99 % when Re > 30, while reducing θ effectively lowers pressure drop. Furthermore, the central circle, defined as a circle with a diameter equal to half the sum of the inner and outer diameters of the concentric ring, scales the mixing chamber size by adjusting its diameter Φ under constant flow channel cross-sectional area. Performance evaluations of CCRM-120°, CCRM-105°, and CCRM-90° micromixers with varying central circle diameter (Φ) revealed that increasing Φ in CCRM-120° mitigated mixing index fluctuations but significantly raised energy consumption. In contrast, CCRM-105° and CCRM-90° achieved stable mixing index above 99 % across a wide Re range (30 – 100) without enlarging Φ, demonstrating superior energy efficiency.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110685"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145895871","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