Frontiers in chemical engineering最新文献

{"title":"Editorial: The role of agave as feedstock within a sustainable circular bioeconomy","authors":"José A Pérez-Pimienta, Hugo O. Méndez-Acosta, Sarah C. Davis, Daniel Kean Yuen Tan","doi":"10.3389/fceng.2023.1343629","DOIUrl":"https://doi.org/10.3389/fceng.2023.1343629","url":null,"abstract":"","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"56 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139384935","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":"Title: waste to wealth: the power of food-waste anaerobic digestion integrated with lactic acid fermentation","authors":"C. Bühlmann, Bede S. Mickan, Stephan Tait, D. Batstone, Parisa A. Bahri","doi":"10.3389/fceng.2023.1285002","DOIUrl":"https://doi.org/10.3389/fceng.2023.1285002","url":null,"abstract":"Food waste (FW) costs the global economy $1 trillion annually and is associated with 8% of anthropogenic greenhouse gas emissions. Anaerobic digestion (AD) is an effective technology for recycling organic waste, including FW, for energy and nutrient recovery. Current major revenue streams for AD include the sale of biogas/power, gate fees, and digestate (fertiliser). However, subsidies provided by governments are a major profit driver for commercial facilities and are generally required for profitability, limiting its widespread adoption. Lactic acid (LA) is a high value intermediate of the AD process and literature evidence has indicated the recovery of LA can significantly boost the revenue generated from FW-AD. Moreover, FW fermentation naturally tends towards LA accumulation, promotion of LA producing bacteria, and inhibition of alternate competing microbes, making LA attractive for commercial production from FW. The integration of LA production and recovery into FW-AD could improve its economic performance and reduce the need for subsidy support, providing a platform for global adoption of the AD technology. However, challenges, such as 1) the low LA yield on FW, 2) seasonality of the FW composition, 3) unknown influence of LA recovery on downstream AD, and 4) impact of standard operational procedures for AD on upstream LA production, still exist making this focus area for future research. Even so, literature has shown the benefits of the LA-AD biorefinery, detailing improved process economics, increased FW utilisation, and elimination of subsidy support. Therefore, this review focuses on exploring the integrating LA production into AD by examining the current status of AD, LA integration strategies, challenges associated with LA production from FW, and identifies key challenges and considerations associated with downstream AD of fermented waste.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138972973","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":"Brewers’ spent grain pretreatment optimisation to enhance enzymatic hydrolysis of whole slurry and resuspended pellet","authors":"J. Castilla-Archilla, M. Cermeño, Maria G. Tuohy, Richard J. FitzGerald, Piet N. L. Lens","doi":"10.3389/fceng.2023.1272988","DOIUrl":"https://doi.org/10.3389/fceng.2023.1272988","url":null,"abstract":"A thermal diluted acid pretreatment using brewers spent grain (BSG) was optimised to improve enzymatic hydrolysis while minimising energy and chemical inputs. First, the use of hydrochloric or sulfuric acid for pretreatment was compared, using hydrochloric acid for the next steps. Three different dilute acid thermal pretreatment combinations were optimised in terms of acid concentration, temperature and time using a response surface methodology. Optimization was based on i) highest remaining protein content in the solid fraction (C1: 0.49% HCl; 87.7°C; 92 min), ii) highest liquid recovery (C2: 0.80% HCl; 121.0°C; 142 min), iii) lowest acid concentration applied to achieve largest protein and lowest remaining solid levels (C3: 0.10% HCl; 104.0°C; 70 min); and iv) a final condition based on the lowest water retention capacity when using HCl (C4: 0.20% HCl; 121.0°C; 20 min). The efficiency of enzymatic hydrolysis was evaluated, in the absence and presence of a large concentration of reducing carbohydrates, by centrifuging the slurry after acid pretreatment, recovering the solid fraction and resuspending it in fresh water. In C2, the enzyme (Depol 40L) was added directly to the entire slurry after pretreatment. For C1, C3, and C4 direct addition of enzyme to the whole slurry resulted in a higher release of carbohydrates during hydrolysis. Only in the case of C2 did the use of the resuspended solid result in a higher carbohydrate release. The overall carbohydrate recovery efficiency in the liquid fractions for C1, C2, C3 and C4 corresponded to 399.1 (±26.1), 535.8 (±28.7), 257.0 (±11.5), and 446.3 (±81.1) mg carbohydrate per Gram of BSG (dry weight), respectively. C1 and C4 were considered the optimal pretreatments as these combined a low acid concentration and energy input prior to enzymatic hydrolysis.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007686","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":"Review of the recent advances on the fabrication, modification and application of electrospun TiO2 and ZnO nanofibers for the treatment of organic pollutants in wastewater","authors":"Sivuyisiwe Mapukata, Katekani Shingange, Teboho M Mokhena","doi":"10.3389/fceng.2023.1304128","DOIUrl":"https://doi.org/10.3389/fceng.2023.1304128","url":null,"abstract":"The heightened occurrence of emerging organic pollutants (EOPs) in aquatic bodies has been the subject of global apprehension due to the toxicity they pose to the environment, humans and animals alike. The presence of EOPs has soared due to industrialization and is further exacerbated by human activities like the overuse and poor disposal of dyes, pesticides, pharmaceuticals, surfactants, personal care products and food additives. The complete treatment and removal of EOPs from industrial wastewater and sewage has remained a challenge because of their pseudo-persistence and resistance to degradation. Due to their impressive light absorption properties, high surface-area-to-volume ratio, high porosity, superior mechanical strength, electrospun titanium dioxide (TiO2) and zinc oxide (ZnO) nanofibers have been proposed for the photocatalytic treatment of EOPs. Therefore, this review first highlights the fabrication and modification methods of TiO2 and ZnO nanofibers. A systematic survey of the latest progress in the application of TiO2 and ZnO nanofibers for the degradation of EOPs is then elaborated. Thus, the main goal is to shed light and give insight to researchers on the possibilities surrounding the elimination of EOPs by applying electrospun TiO2 and ZnO semiconductor materials. In addition, the loopholes associated with fabrication and modification processes are discussed with the aim of encouraging innovation for prospective technology advancement and commercialization, as well as to enhance research efforts in wastewater treatment and environmental sustainability.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"23 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138602781","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":"Receptors for the recognition and extraction of lithium","authors":"Jianfeng Zhang, Marco Wenzel, Liangrong Yang, R. Luckay, J. Weigand","doi":"10.3389/fceng.2023.1271045","DOIUrl":"https://doi.org/10.3389/fceng.2023.1271045","url":null,"abstract":"We summarize advances in lithium recognition receptors, focusing on their use as active reagents in circular processes such as liquid–liquid extraction, an established industrial process that is advantageous due to its large processing capacity and high selectivity. High-performance systems are required, given the increasing demand for effective separation processes for the recovery of valuable substances from spent lithium-ion batteries or the exploration of brines. Hence, the availability of powerful and highly selective receptors is particularly crucial. This mini-review summarizes the development of active receptors for lithium ion extraction and covers advances in receptors for both lithium ions and lithium salts. It discusses various receptor types, ranging from heteroditopic macrocyclic systems to simple β-diketones. The latter achieve particularly high lithium ion extraction yields in the presence of phosphine oxides such as trioctylphosphine oxide. Structural studies employing 4-phosphorylpyrazolone exhibited diverse coordination modes of lithium and represent clear evidence for the synergistic role of the co-ligand on a molecular level.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"338 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139204140","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":"A regime map for dry powder coating: the influence of material properties and process parameters","authors":"Marv J. Khala, Colin Hare, V. Karde, Jerry Y. Y. Heng","doi":"10.3389/fceng.2023.1301386","DOIUrl":"https://doi.org/10.3389/fceng.2023.1301386","url":null,"abstract":"A numerical study is carried out to investigate the combined influence of material properties and process parameters on coating quality in a high shear mixer (specifically an FT4 Powder Rheometer) to construct a regime map. The Discrete Element Method (DEM) is employed to simulate a range of material properties (size, density, and surface energy) and process parameters (impeller speed and mixing time) via Design of Experiments (DoE). A robust regime map is proposed for prediction of dry coating performance based on dimensionless Stokes deformation number (Stdef) and granular Bond number (Bo). The regime map provides insight on the optimal range of material properties and process parameters to achieve high coating levels in a high-shear bladed mixer. Furthermore, the minimum energy required to achieve optimal coating performance as well as regions of poor coating quality due to guest detachment exacerbated by excessive energy input can be identified from the regime map, thus reducing wastage of energy and coating material required. The regime map enables the required mixing time for optimal coating to be determined so long as particle size distributions and surface energies are known.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139243297","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":"Hybrid modeling of drop breakage in pulsed sieve tray extraction columns","authors":"Andreas Palmtag, Johannes Rousselli, Henning Gröschl, Andreas Jupke","doi":"10.3389/fceng.2023.1274349","DOIUrl":"https://doi.org/10.3389/fceng.2023.1274349","url":null,"abstract":"Accurate models for pulsed sieve tray extraction columns (PSEs) depend on the correct prediction of the drop diameter to estimate extractive mass transfer across the phase boundary. Phenomenologically, the drop diameter is determined by a balance of drop breakage and coalescence. While for most industrial solvent systems, coalescence plays a minor role; breakage is mostly the dominant phenomenon determining the drop diameter. However, most modeling approaches for drop breakage in PSEs are characterized by a trade-off between a broad validity range and good prediction accuracy. To overcome this limitation, we developed a hybrid breakage model for drop breakage in PSEs in which a physical-empirical model basis is enhanced by data-driven parameter estimator models (PEMs). The hybrid model is based on a revised form of Garthe’s breakage model, for which we developed a linear PEM for the model parameters and two data-driven PEMs for <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" id=\"m1\"><mml:mrow><mml:msub><mml:mi>d</mml:mi><mml:mtext>stab</mml:mtext></mml:msub></mml:mrow></mml:math> and <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" id=\"m2\"><mml:mrow><mml:msub><mml:mi>d</mml:mi><mml:mn>100</mml:mn></mml:msub></mml:mrow></mml:math> , respectively. The hybrid breakage model was validated on 743 experimental data sets and evaluated based on the pull metric. In a sensitivity analysis, the model correctly predicted the breakage probability over a wide range of solvent properties, operating conditions, and sieve tray geometries. In future studies, the hybrid breakage model can be incorporated into extraction column models without an initial parametrization.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135430814","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":"Molecular epidemiology of sisal bole rot disease suggests a potential phytosanitary crisis in Brazilian production areas","authors":"Fábio Trigo Raya, Gabriel Quintanilha-Peixoto, Adriele Barbara de Oliveira, Marina Püpke Marone, Wagner José Villela dos Reis, João Gabriel Oliveira Marques, Rafael Leonardo Almeida, Cezar Augusto Teixeira Falcão Filho, Oldair Del’Arco Vinhas Costa, Rafael Vasconcelos Ribeiro, Ana Cristina Fermino Soares, Aristóteles Goés-Neto, Gonçalo Amarante Guimarães Pereira","doi":"10.3389/fceng.2023.1174689","DOIUrl":"https://doi.org/10.3389/fceng.2023.1174689","url":null,"abstract":"Sisal bole rot disease is the major phytosanitary problem of Agave plantations in Brazil. The disease is caused by a cryptic species of Aspergillus : A. welwitschiae . To date, the only way to diagnose the disease was to observe external symptoms, visible only when the plant is already compromised, or through the isolation and sequencing of the pathogen, which requires cutting the entire plant for bole tissue sampling. We developed a new primer set based on a unique gene region of A. welwitschiae , which can detect the phytopathogenic strains through PCR directly from sisal leaves. Using the new marker to study the main sisal-producing areas in Brazil, we discovered a troublesome situation. The main producing areas of this crop had a pathogen incidence of 78%–88%. The dispersion index indicates a regular spatial pattern for disease distribution, suggesting that the use of contaminated suckers to establish new fields may be the main disease-spreading mechanism. Altogether, the high incidence of the pathogen, the unavailability of clean plants, the unpredictability of disease progression, and the low investment capacity of farmers reveal the vulnerability of this sector to a potential phytosanitary crisis. By correlating the disease symptomatology with soil nutritional traits, we suggest that higher potassium availability might decrease visual symptoms, while phosphorus may have the opposite effect. Also, we observe a potential cultivar effect, suggesting that common sisal may be more susceptible than hybrid cultivars (especially H400). This new molecular tool is a significant advance for understanding the disease, enabling the implementation of a monitoring program and studies that may lead to pathogen control strategies and changes in the Brazilian production model.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"22 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135271666","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":"Editorial: Smart manufacturing: advances and applications of artificial intelligence, machine learning and industrial internet of things in the chemical and biochemical industry","authors":"J. Flores-Cerrillo, Q. He, Jin Wang, Huimin Yu","doi":"10.3389/fceng.2023.1309165","DOIUrl":"https://doi.org/10.3389/fceng.2023.1309165","url":null,"abstract":"","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139306696","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":"Leveraging mechanobiology and biophysical cues in lung organoids for studying lung development and disease","authors":"Ziming Shao, Paolo De Coppi, Federica Michielin","doi":"10.3389/fceng.2023.1255783","DOIUrl":"https://doi.org/10.3389/fceng.2023.1255783","url":null,"abstract":"Lung organoids have emerged as powerful tools for studying lung distal diseases by recapitulating the cellular diversity and microenvironment of the lung tissue. This review article highlights the advancements in leveraging mechanobiology and biophysical cues in lung organoid engineering to improve their physiological relevance and disease modelling capabilities. We discuss the role of mechanobiology in lung development and homeostasis, as well as the integration of biophysical cues in the design and culture of lung organoids. Furthermore, we explore how these advancements have contributed to the understanding of lung distal diseases pathogenesis. We also discuss the challenges and future directions in harnessing mechanobiology and biophysical cues in lung organoid research. This review showcases the potential of lung organoids as a platform to investigate the underappreciated impacts of biophysical and biomechanical properties in enhancing lung organoids complexity and functionality, and ultimately provide new insight into embryonic lung development and pulmonary distal diseases pathogenesis.","PeriodicalId":73073,"journal":{"name":"Frontiers in chemical engineering","volume":"19 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135274264","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}