Article
Environmental Sciences
Roberta Frinhani Nunes, Patricia Metolina, Antonio Carlos Silva Costa Teixeira
Summary: The study demonstrated that degradation of DPC by SO4·- and HO· radicals generated from UVA and thermal-activated PS was effective, with SO4·- playing a major role. The concentration of PS influenced the degradation rate of DPC, while lower photon emission rates could be compensated by increasing PS concentration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Sousan Hadi, Ensiyeh Taheri, Mohammad Mehdi Amin, Ali Fatehizadeh, Ramesh L. Gardas
Summary: The study evaluated the oxidative removal of methylene blue from synthetic textile wastewater using a combination of persulfate and heterogeneous Fenton-like process. The optimal conditions for MB removal were determined, and it was found that H2O2 and goethite doses greatly influenced the efficiency of MB removal. Reusing goethite for 5 cycles still maintained a high MB removal efficiency of 93%, indicating its good reusability. Radical trapping experiments identified hydroxyl radicals as the dominant radical for MB removal.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Kai-Ru Jin, Zhi-Hao Zheng, Ling-Nan Wu, Qiang Xu, Bing-Zhi Liu, Zhan-Dong Wang, Zhen-Yu Tian
Summary: Pyrolysis of norbornadiene (NBD) was studied using synchrotron radiation photoionization molecular-beam mass spectrometry. A detailed kinetic model was developed to predict the species and reactions involved in the pyrolysis process. The results reveal a two-stage process with the formation of acetylene, cyclopentadiene, C7H8 isomers, and other aromatics in the first stage, followed by the formation of light hydrocarbons and polycyclic aromatic hydrocarbons in the second stage. Sensitivity analysis shows that the reactions in the first stage play a significant role in NBD consumption.
COMBUSTION AND FLAME
(2022)
Article
Environmental Sciences
Chunsheng Ding, Zhiyue Cai, Chenkai Hu, Jia Lei, Lei Wang, Qingsong Li, Xueyan Li, Jing Deng
Summary: Pharmaceutical and personal care products (PPCPs), such as acyclovir (ACV), pose a significant threat to water environments. This study found that ACV can be efficiently degraded by a thermally activated persulfate (TAP) system. However, the presence of inorganic anions and humic acid hindered ACV removal to varying degrees. Additionally, the degradation of ACV was significantly inhibited under strong alkaline conditions. The main active species in the degradation process were identified as sulfate radical (SO4.(-)) and hydroxyl radical (.OH), and their reaction rate constants with ACV were calculated.
Article
Construction & Building Technology
Marzieh Namdari, Chang-Seo Lee, Fariborz Haghighat
Summary: Ozone, a hazardous air pollutant, must be kept within a specific limit to protect human health and the environment. Different ozone removal technologies are available, but their feasibility for various applications is not well understood due to limited comprehensive studies. This study addresses this gap by using a statistical design approach to analyze the performance of different granular materials for ozone removal.
BUILDING AND ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Jiale Wang, Siyi Fan, Zhirui Xu, Jiaqi Gao, Ying Huang, Xubiao Yu, Huihui Gan
Summary: This study investigates the oxidation kinetics and mechanistic pathway of chlorinated compounds in highly saline pharmaceutical wastewater using the Co2+/peroxymonosulfate (PMS) system. The results reveal a dual effect of exogenic Cl- on the degradation of clofibric acid (CA) and the formation of undesirable chlorinated by-products. The findings suggest that chlorinated compounds in highly saline pharmaceutical wastewater are more resistant and deserve more attention.
Article
Engineering, Environmental
Yong-Tao Li, Jiu-Jiang Zhang, Yu-Hang Li, Jing-Lin Chen, Wan-Ying Du
Summary: This study focused on the remediation of petroleum hydrocarbons in soil using ultrasonic and thermal energy to activate persulfate. The results showed that ultrasonically/thermally-activated persulfate had the highest degradation efficiency, and the degradation of petroleum hydrocarbons followed a pseudo-second-order reaction, with rate constants increasing with temperature and persulfate dosage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Sayed M. Badawy
Summary: Multi-stage freezing-melting process of seawater samples can reduce salinity progressively, producing purer drinking water. Study shows that salinity decreases in a geometric progressive manner with freezing-melting cycles, and gradual melting of frozen water layers under temperature gradient affects the formation of salt ice in an exponential manner.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Xinlu Han, Zhihua Wang, Yong He, Yanqun Zhu, Alexander A. Konnov
Summary: This study investigated the laminar burning velocities of CH4 + H2S + air flames and highlighted the importance of interactions between C and S-containing species, proposing solutions for handling hydrogen sulfide.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
Jin-Tao Chen, Zhi-Hao Jin, Wang Li, Kai-Ru Jin, Shu-Bao Song, Jiu-Zhong Yang, Zhen-Yu Tian
Summary: The pyrolysis of benzyl alcohol was studied in a flow tube reactor under different pressures, revealing that H-abstraction reactions with H atoms and OH radicals are the main consumption pathway. Various factors affect the pyrolysis and oxidation processes of benzyl alcohol, providing a theoretical basis for further research on combustion chemical kinetics.
COMBUSTION AND FLAME
(2021)
Article
Engineering, Chemical
Chia-Chang Lin, Hsu-Heng Hsiao
Summary: This investigation evaluates the effectiveness of the heat/persulfate process in degrading Rhodamine B in water. The results show that the process follows pseudo-first-order kinetics and is highly efficient at 70 degrees Celsius. The efficiency and rate of degradation are influenced by temperature, initial concentration, and Na2S2O8 concentration.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Energy & Fuels
Bei-jing Zhong, Zhao-mei Zeng, Hou-zhen Zhang
Summary: This study focused on experimental measurements and development of a chemical kinetic model for JP-10 combustion. The model consisting of 189 species and 1287 reactions was validated using laminar flame speeds and literature data. Results showed that decomposition pathways of JP-10 mainly generate small molecules, cyclic C-5 alkenes, and aromatics, with different effects on global reaction rates.
Article
Geochemistry & Geophysics
Wenwen Han, Hongying Yang, Linlin Tong
Summary: The study investigated the removal of cyanide from gold cyanide residues using the persulfate-advanced oxidation process. Heat activation and ultrasonic activation were tested for their effectiveness in cyanide removal. The results showed that both methods were successful, with ultrasonic activation achieving a higher removal efficiency. The study also found that the reaction produced SO4 center dot- and HO center dot radicals, with the latter playing a major role in the oxidation of cyanide. The findings suggest that the ultrasonic-activated persulfate-advanced oxidation process has potential applications for treating gold cyanide residues.
Article
Engineering, Environmental
Lingwei Gao, Yang Guo, Jun Huang, Bin Wang, Shubo Deng, Gang Yu, Yujue Wang
Summary: A probe-based kinetic model was developed to simulate micropollutant abatement during water treatment by a cobalt-mediated peroxymonosulfate process. The model can be used to predict the abatement efficiencies of various micropollutants by measuring the concentrations of sulfate and hydroxyl radicals.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Ning Li, Wuchuan Sun, Shenghua Liu, Xiaokang Qin, Yuwei Zhao, Yanju Wei, Yingjia Zhang
Summary: The study investigated the combustion characteristics of DMM through experimental and kinetic modeling approaches. The proposed detailed kinetic model showed that C-O bond fissions were the dominating reaction pathways in high temperature DMM chemistry. The model was validated against experimental data and demonstrated its ability to predict DMM combustion under various conditions.
COMBUSTION AND FLAME
(2021)
Article
Green & Sustainable Science & Technology
Salman Alizadeh Kordkandi, Amir Mohaghegh Motlagh
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2018)
Article
Engineering, Environmental
Mojtaba Forouzesh, Ali Baradar Khoshfetrat, Salman Alizadeh Kordkandi
WATER SCIENCE AND TECHNOLOGY
(2017)
Article
Chemistry, Multidisciplinary
Salman Alizadeh Kordkandi, Ali Baradar Khoshfetrat, Asaad Faramarzi
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2018)
Article
Engineering, Chemical
Mojtaba Forouzesh, Amanollah Ebadi, Abbas Aghaeinejad-Meybodi
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Engineering, Environmental
Mojtaba Forouzesh, Amanollah Ebadi, Abbas Aghaeinejad-Meybodi, Reza Khoshbouy
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Engineering, Chemical
Xu Yang, Jieshi Xiao, Jian Huang, Kaixiang Peng
Summary: This study introduces an online convolutional adversarial autoencoder (AAE) model to learn representative industrial process information. By extracting features that reflect diverse information and follow a Gaussian distribution, the model improves the accuracy of fault detection and removes redundant information through a feature selection strategy.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
Article
Engineering, Chemical
Shao-Yang Wu, Meng-Tsun Lai, Chung-Hui Hsu, Kevin C. W. Wu, Yesong Gu
Summary: This study investigated the effectiveness of using Fe-based MOF or MIL-100(Fe) in conjunction with a PEDOT-modified Pt electrode for detecting the synthetic azo dye tartrazine. By modifying the electrode with two different methods, favorable lower reductive potentials, competitive sensitivities, and good repeatability and stability were achieved in all MIL-100(Fe)/PEDOT/Pt electrodes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)