Article
Environmental Sciences
J. Gonzalez-Arias, M. A. de la Rubia, M. E. Sanchez, X. Gomez, J. Cara-Jimenez, E. J. Martinez
Summary: This study proposes electrochemical oxidation (EO) as a new method to treat process water from hydrothermal carbonization of olive tree pruning. The organic matter removal and chemical species formed during the electro-oxidation process under different conditions were analyzed. The addition of a promoter significantly enhanced the organic matter removal, and the choice of electrolyte had a significant impact on the removal efficiency. Moreover, the study found that various chemical species identified in different feedstocks were partially or completely removed after EO treatment. Therefore, this research suggests a promising avenue for the further utilization of process water from hydrothermal carbonization processes.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Malgorzata Wilk, Klaudia Czerwinska, Maciej Sliz, Miroslaw Imbierowicz
Summary: Hydrothermal carbonization is an innovative method for the disposal of sewage sludge, with the solid product hydrochar having potential uses as fuel or fertilizer. The gaseous products mainly consist of CO2 and nitrogen, while the post-processing liquid, which accounts for about 80%, is highly toxic. This study aimed to investigate the potential of hydrochars derived from sewage sludge as fuel, and to utilize the filtrates after purification. The results showed that hydrochars exhibited improved energy properties and dewaterability compared to raw sewage sludge, with better chemical composition and filtration efficiency.
Article
Environmental Sciences
Zhiming Zhang, Xuan Xuan, Junyao Wang, Xuelei Zhao, Jiantao Yang, Yong Zhao, Jianqiang Qian, Tengfei Wang
Summary: This review focuses on the nitrogen fate during the hydrothermal carbonization (HTC) of N-containing biowaste. The impact of critical factors such as N/O, N/C, N/H, solid ratio, initial N in feedstock, hydrothermal temperature, and residence time on the nitrogen content in hydrochar is analyzed. The distribution and conversion of nitrogen species in both hydrochar and liquid phase are discussed. Furthermore, the chemical forms of nitrogen in hydrochar and its role in the hydrochar formation mechanism are elaborated. Challenges and perspectives for the formation and regulation of nitrogen in biowaste during HTC are also presented.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Jose L. Diaz de Tuesta, Marcus C. Saviotti, Fernanda F. Roman, Gabriel F. Pantuzza, Hiram J. F. Sartori, Assem Shinibekova, Marzhan S. Kalmakhanova, Bakytgul K. Massalimova, Juliana M. T. A. Pietrobelli, Giane G. Lenzi, Helder T. Gomes
Summary: This study focuses on the valorization of bagasse of sugarcane, bagasse of malt, and seed of chia through their transformation into pyrochars, hydrochars, and activated carbons. The results indicate that BC generates more volatile organic compounds compared to BM and SC.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Ankita Shrestha, Bishnu Acharya, Aitazaz A. Farooque
Summary: The research explores the potential utilization of sea lettuce for production of value-added products through hydrothermal carbonization process. The hydrochar obtained has higher heating value and carbon content compared to raw sea lettuce, with recovery of nutrients from process water. Co-digestion of process water with food waste shows increased gas production, indicating the promising feedstock for hydrothermal carbonization.
Article
Biotechnology & Applied Microbiology
Vinicius S. Santos, Bernardo R. Moura, Isabela C. Constantino, Gustavo Metzker, Mauricio Boscolo, Marinonio L. Cornelio, Odair P. Ferreira, Jean L. S. Mounier, Houssam Hajjoul, Marcia C. Bisinoti, Francisco H. S. Junior, Altair B. Moreira
Summary: Recent studies have shown a new way of producing humic-like substances (HLS) from hydrochar prepared by hydrothermal carbonization of biomass. These HLS extracted from process water (PW) produced in hydrothermal carbonization process exhibit high conditional stability constant and complexing capacity, with high content of carbon, oxygen and inorganic compounds. Infrared bidimensional analysis indicates different binding sites affinity order for HLS at different concentrations.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Thermodynamics
Sawat Poomsawat, Wijittra Poomsawat
Summary: The study demonstrates that upgrading aquatic biomass as a solid fuel using hydrothermal carbonization can improve fuel quality by increasing carbon content and decreasing volatile matter and ash content, leading to enhanced combustion performance.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Environmental
Yan Ding, Debo Li, Maochao Lv, Longji Yuan, Jing Zhang, Shiru Qin, Baosu Wang, Xin Cui, Chuwen Guo, Peitao Zhao
Summary: This study investigated the effect of PW recirculation on hydrochars at temperatures of 180, 220, and 260 degrees Celsius. The results showed that PW recirculation improved the mass yield and energy recovery efficiency (ERE) of hydrochars. With increasing temperature, the mass yield decreased while ERE initially increased and then decreased. PW recirculation promoted the increase of carbon content at 180 and 220 degrees Celsius. SEM analysis showed that PW recirculation promoted the formation of carbon microspheres, with fusion occurring at 260 degrees Celsius. Overall, PW recirculation could improve the hydrothermal carbonization process to some extent.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Xudong Chen, Min Zheng, Xiang Cheng, Chengwen Wang, Kangning Xu
Summary: This study investigated the impact of organic and inorganic impurities in process water of kitchen waste hydrothermal carbonization (HTC) on the crystallization of vivianite, and explored approaches to reduce their negative effects.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Chemistry, Analytical
Yan Ding, Chuwen Guo, Shiru Qin, Baosu Wang, Peitao Zhao, Xin Cui
Summary: Hydrothermal carbonization (HTC) is a promising method to convert moist lignocellulosic biomass into advanced fuels. However, the process wastewater (PW) generated during HTC poses potential pollution to the environment. This study shows that recycling and reusing PW can improve the hydrochar performance, enhancing its thermal stability and adsorption capacity.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Environmental Sciences
Sudheekar Reddy Periyavaram, K. Bella, Lavakumar Uppala, P. Hari Prasad Reddy
Summary: The study aims to maximize the mass yield, higher heating value, and energy yield of food waste through optimizing the operational variables of hydrothermal carbonization process. It is found that temperature and reaction time have a significant impact on the fixed carbon and carbon percentage of hydrochar. The combination of process water and hydrochar under optimal conditions yields the highest methane production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Qiuyue Zhang, Bingyu Wang, Yanfang Feng, Yuanyuan Feng, Jing Li, Shudong Ding, Huayong He, Huifang Xie
Summary: This study aimed to explore the effects of hydrothermal carbonization process water (HTC-PW) at different temperatures on the soil-water environment. The input of HTC-PW changed the aquatic DOM components and promoted the development of certain bacteria and fungi. The study provides a theoretical basis for analyzing the potential ecological effects of HTC-PW in the soil-water environment and guidance for its rational disposal.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Chemistry, Applied
Youwei Zhi, Donghai Xu, Guanyu Jiang, Wanpeng Yang, Zhilin Chen, Peigao Duan, Jie Zhang
Summary: Hydrothermal carbonization (HTC) is an effective method for the harmless disposal of municipal sludge (MS) and offers potential applications for the obtained products. Optimizing reaction conditions, coupling with other waste materials, and combining different processes can improve the performance of HTC. Furthermore, HTC contributes to energy recovery and enhances the quality of life cycle assessment.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Green & Sustainable Science & Technology
Guanyu Jiang, Donghai Xu, Botian Hao, Lu Liu, Shuzhong Wang, Zhiqiang Wu
Summary: Rapid economic growth has made the disposal of municipal sludge increasingly important during urbanization acceleration. Among various thermochemical treatment methods, combustion is preferred for rapid and significant volume reduction of sludge, while other methods face challenges in system operation and technological development.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Green & Sustainable Science & Technology
C. I. Aragon-Briceno, A. K. Pozarlik, E. A. Bramer, Lukasz Niedzwiecki, H. Pawlak-Kruczek, G. Brem
Summary: The biorefinery concept aims to utilize all properties of biomass to produce energy and recover useful chemical products. Hydrothermal carbonization (HTC) is a suitable option for energy recovery and enhanced nutrient recovery, with part of the nutrients solubilized into process water and the rest remaining in hydrochar.
Article
Engineering, Environmental
Lin Qian, Frank-Dieter Kopinke, Tom Scherzer, Jan Griebel, Anett Georgi
Summary: A novel treatment strategy utilizing heat-activated persulfate and zeolite (BEA35) was developed for the removal of PFOA from water, showing significant improvements in both adsorption and degradation processes. The presence of zeolite greatly enhanced PFOA degradation efficiency, potentially overcoming shortcomings of current technologies. This approach provides an effective and efficient method for treating PFOA-contaminated water and may inspire the development of remediation technologies for other micropollutants.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Ulf Roland, Frank Holzer, Frank-Dieter Kopinke
Summary: This study investigated the reductive catalytic conversion of DDT under ambient conditions using platinum and palladium supported on porous alumina and silica. The results showed that almost complete hydrodechlorination and hydrogenation of DDT occurred, leading to the formation of diphenylethane and dicyclohexylethane. The long-range reactivity was observed even when DDT and the metal component were deposited on separate particles and mechanically mixed. The fast diffusion of target compounds was identified as the dominant mechanism for the observed long-range reactivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Jieying Zhou, Yuan Zhang, Maria Balda, Volker Presser, Frank-Dieter Kopinke, Anett Georgi
Summary: Highly water-soluble, persistent, and mobile organic compounds (PMOCs) are frequently detected in surface and groundwater, posing potential threats to the environment and human health. Traditional water treatment methods are ineffective in removing PMOCs due to their hydrophilic nature. This study explores the use of electro-assisted sorption processes on activated carbon-based electrodes as a promising solution for efficient removal of PMOCs and potential on-site sorbent regeneration.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Stefano Salvestrini, Luigi Ambrosone, Frank-Dieter Kopinke
Summary: This work discusses recent results and statements in the field of scientific adsorption, focusing on the thermodynamic aspects of the process. It addresses issues such as dimensional inconsistency of fitted parameters, assumptions in isotherm models, inaccuracies in calculating Delta H degrees and Delta S degrees, and the interchangeability of Delta G and Delta G degrees. The paper also proposes a graphical method for assessing data reliability and the applicability of the van't Hoff equation.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Environmental Sciences
Ali Shee, Frank-Dieter Kopinke, Katrin Mackenzie
Summary: Cu with borohydride as reductant shows promising potential in hydrodechlorination of halogenated organic compounds, with product selectivities being substrate-specific rather than reductant-specific. The process can achieve chlorine removal through stepwise hydrogenolysis or alpha-elimination for saturated aliphatic HOCs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Jieying Zhou, Navid Saeidi, Lukas Y. Wick, Yanlin Xie, Frank-Dieter Kopinke, Anett Georgi
Summary: The research shows that surface defunctionalized activated carbon felt (DeACF) can effectively adsorb trifluoroacetic acid (TFA) through enhanced interactions between hydrophobic carbon surface and CF3 moieties. The electro-assisted TFA desorption using Na2SO4 as electrolyte shows high efficiency in recovering TFA. Despite the decrease in adsorption capacity caused by surface oxidation, the system stability can still be maintained.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Maria Balda, Katrin Mackenzie, Frank-Dieter Kopinke, Anett Georgi
Summary: In this study, uniform and highly dispersible micro-sized carbonaceous spheres were successfully synthesized using hydrothermal carbonization method. These carbon spheres exhibited stable suspensions and high sorption capacity for groundwater contaminants, indicating their potential application in remediation processes.
Article
Thermodynamics
Jana Ruzickova, Helena Raclavska, Dagmar Juchelkova, Marek Kucbel, Konstantin Raclavsky, Barbora Svedova, Michal Safar, Christoph Pfeifer, Jitka Hrbek
Summary: This paper aims to find a simple way to identify the addition of unauthorized waste (plastics) in residential boilers burning wood as the main fuel. The study found that the burning of plastics leaves a trace in char deposits, and the presence of combusted plastics can be identified by analyzing unique organic compounds formed during the pyrolysis phase of combustion using pyrolysis gas chromatography. By sampling char in boilers and analyzing samples for markers of plastics incineration, this method can be used by authorities to identify unauthorized waste combustion.
Article
Engineering, Environmental
Sarah Suhnholz, Frank-Dieter Kopinke, Katrin Mackenzie
Summary: Several studies have recently been published on sulfate radicals as strong oxidants and methods of their generation. A shift can be observed from homogeneous to heterogeneous methods for persulfate activation as a way to generate sulfate radicals. However, the influence of the surface on the radical chemistry has not been thoroughly examined. In this study, homogeneous persulfate activation methods are compared with heterogeneous activation by FeS. The selectivity patterns for the oxidation of chlorinated ethenes, ethanes, and benzenes differ depending on the persulfate activation method. The data suggests that sulfate radicals generated at the FeS surface have different selectivities than freely dissolved radicals. Furthermore, the kinetic isotope effects for the oxidation of methanol isotopologues with sulfate radicals differ significantly between the homogeneous and heterogeneous systems. This leads to the conclusion that sulfate radicals generated on the FeS surface react as surface-associated radicals with a different selectivity pattern.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Agronomy
Vladimir Fristak, Diana Bosanska, Vladimir Turcan, Martin Pipiska, Christoph Pfeifer, Gerhard Soja
Summary: Pyrolysis is an effective method for the treatment of sewage sludge. The study found that pyrolysis-treated sewage sludge has high concentrations of heavy metals, but it does not negatively affect plant growth and metal content when added to soil.
Article
Energy & Fuels
Christoph Preimesberger, Axel Solt-Rindler, Christian Hansmann, Christoph Pfeifer
Summary: This experiment studied the influence of size and temperature on the heating and auto-ignition of beech and spruce wood cubes. The experiments were conducted at five isothermal temperatures with four cube sizes, and temperature curves, mass-losses, and exothermic reactions were compared. The results showed that heating up isothermal phases at approximately 360 degrees Celsius were observed due to ongoing pyrolysis, and after pyrolysis, a combination of internal heating and heterogenous oxidation reactions on the surface lead to ignition and combustion. Differences in chemical composition and sample size affected the ignition temperature.
Article
Biochemistry & Molecular Biology
Maria Balda, Katrin Mackenzie, Silke Woszidlo, Hans Uhlig, Jens Moellmer, Frank-Dieter Kopinke, Gerrit Schueuermann, Anett Georgi
Summary: Recent innovative adsorption technologies for water purification utilize micrometer-sized activated carbon for fast adsorption or in situ remediation. This study demonstrates the synthesis of tailored activated carbon spheres from sucrose as a renewable feedstock. The synthesized carbon spheres showed excellent colloid properties and the ageing process was investigated. Furthermore, the adsorption characteristics of the carbon spheres for different adsorbates were studied, showing high sorption affinities.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Maarten Everaert, Olivier Duboc, Elden Willems, Gerhard Soja, Christoph Pfeifer, Niels Van Velthoven, Rodrigo de Oliveira-Silva, Dimitrios Sakellariou, Jakob Santner
Summary: Boron (B) fertilizers are crucial for global crop production. A study investigated thermochemical treatments to process cellulose fiber insulation waste into a slow-release B fertilizer, achieving slow-release properties through the formation of sparingly soluble Ca-B phases. Results showed the potential of slow-release B in reducing toxicity and leaching losses, indicating its effectiveness as a B application method.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Christoph Preimesberger, Maximilian Wondrak, Axel Solt-Rindler, Christoph Pfeifer, Christian Hansmann
Summary: In this study, the influence of the size of spherical wood samples and the temperature surrounding the samples on auto-ignition was investigated. The results showed that larger samples and higher temperatures were more prone to auto-ignition due to increased surface area and internal overheating. Comparison of different wood species found that size played a critical role in auto-ignition.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Rafat Al Afif, Christoph Pfeifer
Summary: The methane potential of three-phase olive mill solid waste (3POMSW) was evaluated, and thermophilic processing was found to result in higher methane and biogas yield. The addition of enzyme mixtures showed potential for increasing methane production. Simple model equations were developed for calculating biogas yield and optimizing the process.
CARBON RESOURCES CONVERSION
(2022)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)