Article
Chemistry, Applied
Chao Jin, Xin Liu, Tianyun Sun, Jeffrey Dankwa Ampah, Zhenlong Geng, Jing Ji, Gang Wang, Haifeng Liu
Summary: Using fossil fuels in engines has led to energy shortages, carbon emissions, and environmental pollution. Methanol is considered a potential alternative fuel, but its use in diesel engines is hindered by poor auto-ignition properties and low heating value. Blending methanol with vegetable oil, particularly palm oil, has been proposed as a solution. Experimental results indicate stable microemulsions can be formed using methanol and palm kernel oil, with tetrahydrofuran as the most effective co-solvent. Palm kernel oil has a higher affinity for methanol compared to palm oil. Conductivity tests confirm the stability of the microemulsion. This study provides valuable insights for preparing carbon-neutral fuels in diesel engines.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Energy & Fuels
Tongxin Qu, Shengli Niu, Xiangyu Zhang, Kuihua Han, Chunmei Lu
Summary: This study synthesized calcium modified Zn-Ce/Al2O3 heterogeneous base catalysts through three different methods and applied them in biodiesel production. The catalyst synthesized by the hydrothermal method exhibited the best catalytic performance, and showed good reusability with high biodiesel yield even after multiple cycles.
Article
Engineering, Chemical
Zuchra Helwani, Ida Zahrina, Nurfatihayati Tanius, Deyana Annisya Fitri, Priska Tantino, Muslem Muslem, Mohd Roslee Othman, Rinaldi Idroes
Summary: In order to produce high-quality biodiesel, it is necessary to fractionate polyunsaturated fatty acids (PUFA). The study aimed to separate linoleic acid from CPO and determine the best conditions for the separation process to produce fatty acids with low iodine numbers. The results showed that the fractionation method at a temperature of 35 degrees C, an extraction time of 4 h, and a ratio of CPO and solvent of 1:3 produced fatty acids with low iodine numbers and high oxidation stability.
Article
Chemistry, Multidisciplinary
Apiruedee Juntuma, Zargul Ammara, Rungthiwa Methaapanon, Palang Bumroongsakulsawat
Summary: The transesterification of palm oil with methanol catalyzed by anion-exchange resin was studied. Limiting factors that affected the reaction rate were discovered and improvement directions were proposed.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Energy & Fuels
Khantong Soontarapa, Rossarin Ampairojanawong, Thapanut Palakul
Summary: Biodiesel was synthesized from palm fatty acid distillate (PFAD) using a 2-litres chitosan membrane reactor. The esterification reaction was carried out at a PFAD to methanol ratio of 1:15, 2.0 wt% H2SO4, and a methanol feed rate of 20 ml/min for 120 min, resulting in a methyl ester content of 85.9 +/- 0.1 wt%. The transesterification reaction was conducted at a PFAD to methanol ratio of 1:6, 1.0 wt% NaOH, and a methanol feed rate of 20 ml/min for 60 min, resulting in a methyl ester yield of 97.9 +/- 0.0 wt%.
Article
Engineering, Multidisciplinary
M. N. A. M. Yusoff, N. W. M. Zulkifli, N. L. Sukiman, M. A. Kalam, H. H. Masjuki, A. Z. Syahir, M. S. N. Awang, M. A. Mujtaba, J. Milano, A. H. Shamsuddin
Summary: This study aimed to develop biodiesel using a ternary oil mixture consisting of waste cooking oil, Jatropha curcas oil, and palm oil. The parameters affecting biodiesel yield were optimized through response surface methodology. The results showed that the synergistic mixture of ternary oil exhibited improved cold flow properties, oxidation stability, and cetane number.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Ng Wei Zhe, Aaron Anthony Obon, Chin Loong Lee, Yi Hui Ong, Wail Gourich, Kireshwen Maran, Dennis Boon Yong Tang, Cher Pin Song, Eng-Seng Chan
Summary: This paper proposes a new concept of using palm oil mills to co-produce biodiesel for rural electrification, and a techno-economic assessment shows that it is commercially viable.
Article
Engineering, Multidisciplinary
Muhamad Sharul Nizam Awang, Nurin Wahidah Mohd Zulkifli, Muhammad Mujtaba Abbas, Syahir Amzar Zulkifli, Md Abul Kalam, Mohd Nur Ashraf Mohd Yusoff, Wan Mohd Ashri Wan Daud, Muhammad Hazwan Ahmad
Summary: Engine oil's lubricity and tribological properties are changed when diluted with unburned fuels. The study shows that diluted lubricating oil results in increased friction and wear, with different fuels having varying degrees of influence, and the impact of quaternary fuel blends is relatively small.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Dastan Nurmukan, Manh-Vu Tran, Ji Jinn Foo, Gianfranco Scribano, Cheng Tung Chong, Thanh Cong Huynh
Summary: The experimental investigation of the laminar lifted flame of pre-vaporized palm oil biodiesel revealed that the liftoff height is influenced by jet flow velocity, fuel mole fraction, and unburnt gas temperature, with a limited range of conditions for lifted flame occurrence. In some cases, flames experienced liftoff even at lower jet velocities, believed to be due to buoyant force at the nozzle causing secondary entrainment of the mixture flow. The correlation between liftoff height, jet flow velocity, and stoichiometric laminar burning velocity highlights the significance of buoyant force near the nozzle exit.
Review
Engineering, Chemical
Zulqarnain, Mohd Hizami Mohd Yusoff, Muhammad Ayoub, Muhammad Hamza Nazir, Imtisal Zahid, Mariam Ameen, Wajahat Abbas, Noor Fazliani Shoparwe, Nadir Abbas
Summary: This review highlights the significance and advances of biodiesel synthesis processes from palm oil mill effluent (POME), with a focus on supercritical transesterification. Further research is needed to explore the addition of co-solvents like CO2 for improved production efficiency.
CHEMBIOENG REVIEWS
(2021)
Article
Thermodynamics
M. Jamshaid, H. H. Masjuki, M. A. Kalam, N. W. M. Zulkifli, A. Arslan, A. A. Qureshi
Summary: Depletion of fossil fuel reserves and environmental pollution have driven the research towards sustainable and clean energy sources production. Blended biodiesel fuels from cottonseed and palm oil showed lower emissions in engine testing and can be used as substitute fuels in diesel engines.
Article
Energy & Fuels
Wail Gourich, Eng-Seng Chan, Wei Zhe Ng, Aaron Anthony Obon, Kireshwen Maran, Yi Hui Ong, Chin Loong Lee, Jully Tan, Cher Pin Song
Summary: The lack of reliable electricity access, especially in rural areas, remains a global issue. This paper proposes a new concept of co-producing biodiesel in rural palm oil mills to create renewable energy access. The study finds that using enzymatic biodiesel for electrification significantly improves climate benefits compared to commercial diesel. Furthermore, a biodiesel co-production facility in a medium-sized palm oil mill can support around 940 surrounding households. This electrification concept is feasible and can be implemented in many developing palm oil producing countries.
Article
Energy & Fuels
Min-Hao Yuan, Yi-Hung Chen, Siou-Chih Peng, Lu-Yen Chen, Ching-Yuan Chang, Malee Santikunaporn, Channarong Assavatesanuphap, Yi-Fa Lee
Summary: This study investigated the cold filter plugging point (CFPP) of six palm biodiesels in combination with two Taiwanese major petrodiesels. The results showed that low blending ratios of palm biodiesel can effectively reduce CFPP and meet diesel standards.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Nova Rachmadona, Yusuke Harada, Jerome Amoah, Emmanuel Quayson, Martha Aznury, Shinji Hama, Akihiko Kondo, Chiaki Ogino
Summary: This study focused on utilizing waste from the palm oil industry to produce biodiesel. By using palm acid oil and bioethanol obtained from the distillation of artificial palm sap as feedstock, the researchers were able to achieve efficient synthesis of fatty acid ethyl ester using immobilized TLL on coconut shell charcoal as the biocatalyst. The findings demonstrate the potential of an integrated approach to biorefinery operations, which can contribute to sustainable utilization of palm oil waste and cost reduction in the process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Federico Jimenez-Cruz, Celia Marin-Rosas, Luis Carlos Castaneda-Lopez, Jose Luis Garcia-Gutierrez
Summary: Transesterification catalysts prototypes based on LiAlP/montmorillonite were successfully synthesized from LiAlH4 hydrolysates. The extruded catalysts maintained the basic structure of montmorillonite K10, leading to high conversion rates of palm oil triglycerides to FAMEs. Computational studies revealed the importance of Lewis acid sites and mesoporous structures in the catalytic activity, as well as the electrophilicity behavior of the reactants.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Fathimath Afrah Solih, Archina Buthiyappan, Abdul Aziz Abdul Raman, Yan Ying Tan
Summary: Agricultural wastes, including crop residue, livestock waste, agro-industrial waste, and aquaculture waste, contribute significantly to the accumulation of municipal solid waste globally. In this study, banana peel and avocado seed, two types of agro-industrial waste, were used to develop adsorbents with high carbon content and excellent chemical properties. These adsorbents showed promising adsorption performance for removing mixed dyes from aqueous solutions. The study also investigated the effect of operational parameters and found the optimized conditions for efficient adsorption. The findings suggest that the agricultural waste-based adsorbent synthesized from banana peel and avocado seed has the potential to replace conventional adsorbents from a sustainability perspective.
Article
Chemistry, Physical
Luqman H. Hashim, Ahmed Halilu, Yahaya Balarabe Umar, Mohd Rafie Bin Johan, Mohamed Kheireddine Aroua, Paramita Koley, Suresh K. Bhargava
Summary: This study focuses on the design and synthesis of highly active bifunctional catalysts for the conversion of furfural to furfuryl acetate. The catalysts with lower lattice strain exhibited higher catalytic activity.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
A. Arifutzzaman, Intan Najihah Musa, Mohamed Kheireddine Aroua, R. Saidur
Summary: In recent decades, capturing carbon has become a priority in addressing climate change. This paper explores the use of MXenes and activated carbon as CO2 adsorbents, evaluating their performance through various tests and analysis. The AC/MXene sandwich adsorbent showed the highest CO2 adsorption capacity with a significant improvement over AC. The results highlight the potential of emerging nanomaterials in large-scale CO2 capture applications.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Biotechnology & Applied Microbiology
Malvin K. Nadan, Saeid Baroutian
Summary: The increasing dairy cattle farming has led to uncontrolled manure generation, causing significant environmental threats due to greenhouse gas emissions. Anaerobic digestion of dairy cow manure (DCM) provides a solution for waste management and renewable energy generation while mitigating climate change. This review focuses on the potential use of anaerobic digestion in Fiji for optimizing DCM biogas production, considering economic feasibility and environmental benefits. The study emphasizes the need for further research on the optimization of biogas and biomethane potential of DCM in Fiji's dairy farms.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Logan Anstiss, Cameron C. Weber, Saeid Baroutian, Kaveh Shahbaz
Summary: This study investigates the feasibility of using deep eutectic solvents (DESs) to extract EPA and DHA from New Zealand green-lipped mussels. The menthol: lidocaine DES (1:1 M ratio) exhibited superior extraction capacity for EPA and DHA compared to other solvents. The optimized menthol: lidocaine ratio (1:2 M ratio) achieved the highest yields of EPA and DHA, and the DES showed good stability and reusability.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Qiang Yu, Fan Wang, Saeid Baroutian, Yu Zhang, Zhongming Wang, Zhenhong Yuan, Xiaoyan Chen
Summary: In this study, a biphasic deep eutectic solvent system was designed for the extraction of bioactive compounds from the residue of the Chinese herb Evodia lepta. The aqueous phase of the deep eutectic solvent enabled efficient extraction of alkaloids from plant cells, while the hydrophobic ethyl acetate phase facilitated the transfer and concentration of the extracted compounds. This biphasic extraction system significantly improved the extraction efficiency compared to traditional methanol extraction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Farihahusnah Hussin, Nur Nadira Hazani, Mohamed Kheireddine Aroua
Summary: The aim of this study was to prepare a carbon pellet with excellent surface properties for CO2 capture using low-cost material and a green process. A chemical activation method was introduced by modifying the pellet with potassium acetate to enhance its surface properties. The modified carbon pellet showed remarkable changes in surface morphology and increased CO2 adsorption capacity due to the presence of oxygen-containing functional groups. The results suggest that the carbon pellet modified with potassium acetate is suitable for CO2 adsorption.
Review
Chemistry, Multidisciplinary
Farihahusnah Hussin, Siti Aqilah Nadhirah Md Rahim, Mohamed Kheireddine Aroua, Shaukat Ali Mazari
Summary: Climate change and global warming are crucial environmental issues that require global action. Carbon capture technology and machine learning play important roles in reducing CO2 emissions and addressing climate change. Research and development in this field are crucial for future advancements and combating the challenges of climate change.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Chemistry, Applied
Farihahusnah Hussin, Nur Nadira Hazani, Munawar Khalil, Mohamed Kheireddine Aroua
Summary: This article provides a systematic review of hydrothermal technology and the life cycle assessment of hydrothermal biomass conversion. The study found that there is limited research on the environmental and economic impacts of hydrothermal biomass conversion, highlighting the need for environmental impact studies to demonstrate the benefits of biomass hydrothermal processing.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Agricultural Engineering
Kerry Jack Robertson, Rupinder Brar, Parmjit Randhawa, Christine Stark, Saeid Baroutian
Summary: The cannabis industry is booming due to relaxed legislation, and as waste from cultivation increases, there is a need for sustainable management. Research into cannabis waste management is vital as it provides opportunities for businesses. Current methods include landfilling, composting, incineration, and anaerobic digestion, but further research is needed to determine the most efficient approach.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Green & Sustainable Science & Technology
Phuong Linh Ngo, Brent R. Young, Kevan Brian, Saeid Baroutian
Summary: In this study, the pre-treatment of mixed sludge using thermal hydrolysis was investigated. It was found that the condition of thermal hydrolysis at 145 degrees C for 30 min provided the highest biogas production, without increasing the concentration of free ammonia. This condition also resulted in the highest amount of acetic acid and the lowest level of propionic acid, making it the most suitable condition for anaerobic digestion.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Engineering, Chemical
Wei Pu, Abdul Aziz Abdul Raman, Mahar Diana Hamid, Xiaoming Gao, Archina Buthiyappan
Summary: This review provides a comprehensive analysis of proactive risk reduction strategies (RRSs) and techniques for evaluating the performance of inherent safety, health, and environmental aspects. Background information is presented on the development and implementation of inherently safer process design and approaches for achieving inherently healthier and environmentally friendlier processes. The characteristics of inherency assessment tools (IATs) based on available information at different process stages are examined, and evaluation methods and historical development of IATs are investigated. The study concludes that there is a need for further research on no-chemical hazards-based IATs to improve the safety level of process plants.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2023)
Article
Engineering, Chemical
Xiaoming Gao, Abdul Aziz Abdul Raman, Hanee F. Hizaddin, Archina Buthiyappan, Mustapha M. Bello
Summary: Over the years, there have been numerous serious laboratory accidents, leading to injuries, deaths, and economic losses, which has prompted increased attention to laboratory safety. However, current safety measures rely too heavily on additional safeguards and pay insufficient attention to reducing hazardous factors at their origins. This study introduces the concept of inherent safety and develops a tool called the Generic Laboratory Safety Metric (GLSM) to minimize laboratory hazards. Through a case study of a university laboratory, it is demonstrated that the GLSM can effectively increase safety levels after risk-based inherently safer retrofitting, providing relatively satisfactory laboratory conditions. This work presents a set of generic solutions and the GLSM as an implementation tool for achieving inherently safer laboratories, contributing to risk quantification and identification of key risk factors for targeted and fundamental safety measures.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2023)
Article
Engineering, Environmental
C. S. Then, I. A. W. Tan, W. H. T. Ting, S. F. Salleh, N. Abdul Wahab, Abdul Aziz Abdul Raman
Summary: In this study, a dynamic model for batch crystallizer was developed to investigate the eutectic freeze crystallization process of ammonium sulphate (AS) in aqueous solutions. Through process optimization, the significant parameters were identified as initial concentration and initial temperature of cooling fluid, and it was found that AS and ice reached maximum crystallization at 255 K which was close to the eutectic point of AS-water system at 254 K. The dynamic model established in this study demonstrated effectiveness in predicting the crystallization of AS in aqueous solutions.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Engineering, Electrical & Electronic
Md Shafiullah, Saidur Rahman, Binash Imteyaz, Mohamed Kheireddine Aroua, Md Ismail Hossain, Syed Masiur Rahman
Summary: The Southeast Asian region is increasingly interested in smart city initiatives, with a focus on promoting energy efficiency, reducing greenhouse gas emissions, and implementing renewable energy targets. However, challenges related to leadership, governance, citizen support, and investment, among others, arise in implementing smart energy systems. This article discusses the concept of smart cities, highlights different types of initiatives in Southeast Asian countries, and explores the challenges and potential solutions for implementing smart energy systems.
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
