Article
Engineering, Chemical
S. Candamano, G. Coppola, A. Mazza, J. I. Caicho Caranqui, S. Bhattacharyya, S. Chakraborty, F. Alexis, C. Algieri
Summary: Synthetic dyes pose a serious threat to aquatic environments and groundwater systems. The adsorption process using a foamed geopolymer as an adsorbent has proven to be efficient and quick in removing dyes without the production of sludge and secondary toxic compounds. The study focused on the adsorption properties of cationic Methylene Blue (MB) dye and showed that foamed geopolymers are effective in removing MB from aqueous solutions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Anju Gupta, Raj K. K. Vyas
Summary: This study assesses the adsorptive potential of carbonaceous material for the removal of acyclovir (ACVR) from the aquatic environment. Batch experiments investigate the impact of various process conditions on ACVR adsorption, while fixed-bed processes are used to design large-scale column studies. The results show that Langmuir isotherm and the pseudo-second-order kinetic model adequately represent the adsorption mechanism, and ACVR can be effectively removed from contaminated wastewater.
Article
Environmental Sciences
Ebrahim Allahkarami, Amirreza Azadmehr, Fahimeh Noroozi, Shayan Farrokhi, Mika Sillanpaa
Summary: This research aimed to develop a low-cost adsorbent for the removal of nitrate ion from aqueous solutions. The composite material was characterized and the influential variables on nitrate adsorption were studied. Fixed-bed column experiments were conducted and the results were successfully explained using different models.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Matias S. Netto, Diana Pinto, Dison S. P. Franco, Jordana Georgin, Evandro S. Mallmann, Anelise H. P. de Oliveira, Luis F. O. Silva, Guilherme L. Dotto
Summary: This study analyzed the adsorption of ivermectin with commercial activated charcoal and found that the adsorption capacity is highly sensitive to changes in pH, with the best adsorption performance observed at conditions close to neutrality. The commercial activated charcoal showed high efficiency and fast kinetics in removing ivermectin, and performed well in continuous operation mode.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Nima Taghavi, Ali Akbar Amooey, Abdoliman Amouei, Hamed Tashakkorian
Summary: In this study, different types of clinoptilolite adsorbents were evaluated for the removal efficiency of 2,4,6-trichlorophenol. ImidClino showed the highest removal efficiency of 86% under certain conditions. Langmuir-Freundlich isotherm and pseudo-second order model had the most agreement with the experimental data for the adsorption process.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Chemical
Galo Albor, Amin Mirkouei, Armando G. G. McDonald, Ethan Struhs, Farid Sotoudehnia
Summary: This study evaluates the potential of recycling polystyrene (PS) plastic wastes through a fixed bed slow pyrolysis reactor. The focus is on reactor design, conversion parameters, and reaction kinetics to improve process yield, activation energy, and chemical composition. Results show that PS decomposition starts within 2 minutes from all temperatures, with a total decomposition point of 97% at 475 degrees C in approximately 5 minutes. The average necessary activation energy is 191 kJ/mol.
Article
Chemistry, Multidisciplinary
Perfecto Barragan-Pena, Ma G. Macedo-Miranda, Maria T. Olguin
Summary: The study investigated the behavior of thiourea-modified natural clinoptilolite in removing cadmium from wastewater, demonstrating its efficiency and suggesting treatment in a two-column series.
Article
Multidisciplinary Sciences
M. R. El-Naggar, E. A. El-Sherif, R. M. Maree, H. S. Mekhamer
Summary: This study synthesized calcium alginate/graphene-sodium dodycyl sulfate (CA/GR-SDS) nanocomposite beads and evaluated their sorption properties towards Cs+, finding that the highest sorbed Cs+ amounts were acquired within the first 30 minutes of contact time. It was also observed that increasing temperature decreased sorption capacities, while increasing bed depth and flow rate increased the capacities and performances of the beds.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2021)
Article
Environmental Sciences
L. Verma, J. Singh
Summary: Magnetic biochar materials were developed using waste dry leaves of Tectona species and Lagerstroemia speciosa. The synthesized magnetic biochar showed high adsorption efficiency for As(III) and As(V) from aqueous solution and groundwater. The biochar was characterized using various techniques, and the adsorption process followed Langmuir isotherm and pseudo-second-order kinetic. The study demonstrated the potential of magnetic biochar for low-cost filter development to remove arsenic from contaminated areas.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Krzysztof Szostak, Gabriela Hodacka, Jolanta Pulit-Prociak, Marcin Banach
Summary: This paper presents a methodology for preparing hydrochar from waste materials and investigates its efficacy in removing mercury ions from water. The study found that the obtained hydrochar has excellent sorption properties and can efficiently remove mercury ions from aqueous solutions.
Article
Water Resources
Nathalia Krummenauer Haro, Ivone Vanessa Jurado Davila, Keila Guerra Pacheco Nunes, Marcela Andrea Espina de Franco, Nilson Romeu Marcilio, Liliana Amaral Feris
Summary: This work studied the removal of paracetamol through the adsorption process and determined the optimal operating conditions. The results showed that the adsorption process was favorable, spontaneous, and endothermic.
APPLIED WATER SCIENCE
(2021)
Article
Chemistry, Physical
Jolanta Karolina Warchol, Paulina Sobolewska, Wlodzimierz Tylus, Roman Petrus
Summary: Natural clinoptilolite tuff and chabazite-clinoptilolite tuff were modified with hexadecyltrimethylammonium bromide (HDTMA-Br) in fixed-bed column for Cr(VI) sorption. The efficiency of Cr(VI) uptake by prepared surface modified zeolites (SMZs) increased with increasing of HDTMA loading. Ion exchange is the predominant mechanism of Cr(VI) sorption, with XPS analysis revealing reduction to less-toxic Cr(III) by N-containing groups and Fe+2 ions on the zeolite external surface.
Article
Polymer Science
Mohd Shaiful Sajab, Wan Nazihah Liyana Wan Jusoh, Denesh Mohan, Hatika Kaco, Rubiyah Baini
Summary: Investigated the adsorption performance of 3D printed functionalized nanocellulose adsorbent, finding that the pseudo-second order model and Langmuir model were better in describing the adsorption process, and the fixed-bed column achieved five adsorption-desorption cycles with satisfactory performance, though with slightly reduced adsorption capacity.
Article
Chemistry, Physical
Lopamudra Das, Saptarshi Sengupta, Papita Das, Avijit Bhowal, Chiranjib Bhattacharjee
Summary: Adsorbents derived from agro-waste can be a feasible substitute for the synthesis of activated biochar for pollutant removal. The Freundlich isotherm model provided the best fit for the adsorption of Malachite Green dye, with a biosorption capacity of 90.1mg/g at 30 degrees C. The experimental data aligned well with the pseudo-second-order kinetic model, indicating the spontaneous and exothermic nature of the reactions involved.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Environmental
Muhammad Yusuf Prajitno, Suparit Tangparitkul, Huagui Zhang, David Harbottle, Timothy N. Hunter
Summary: Flotation using cationic surfactants has been found to be an effective rapid separation technique for dewatering clinoptilolite ion exchange resins contaminated with radioactive cesium ions. Optimal conditions were determined with the use of cetylpyridinium chloride surfactant, resulting in high recovery efficiency and water reduction ratios during the process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
C. Fall, L. M. Barron-Hernandez, M. T. Olguin-Gutierrez, K. M. Ba, M. Esparza-Soto, M. Lucero-Chavez
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Environmental
D. Contreras-Arzate, M. Islas-Espinoza, C. Fall, D. Alcantara-Diaz, M. T. Olguin, R. Lopez-Callejas, R. Pena-Eguiluz
JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING
(2020)
Article
Environmental Sciences
Adriana Vazquez-Guerrero, Raul Cortes-Martinez, Ruth Alfaro-Cuevas-Villanueva, Eric M. Rivera-Munoz, Rafael Huirache-Acuna
Summary: This work presents the green synthesis of a novel adsorbent and its high adsorption capacity for cadmium and lead from aqueous solutions. The combination of iron nanoparticles and cellulose nanofibers in the adsorbent showed improved selectivity for Cd and Pb during the adsorption process.
Article
Nanoscience & Nanotechnology
C. Martinez-Vieyra, E. Gutierrez-Segura, G. Lopez-Tellez, D. Alcantara-Diaz, M. T. Olguin
Summary: The study focused on the synthesis and characterization of metallic or oxide-metallic nanoparticles-natural zeolite composites for evaluating antimicrobial activity against Salmonella typhimurium and Candida albicans. The results showed differences in the kinetic parameters of cell decay between the two microorganisms and the composite materials, indicating that the antimicrobial activity depends on various factors such as microorganism characteristics, mass of the composite, and distribution of nanoparticles on zeolitic material surfaces. The study suggests that the Z-NpsAg gamma composite could be a viable alternative for water disinfection.
APPLIED NANOSCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Mohamed Abatal, M. T. Olguin, Ioannis Anastopoulos, Dimitrios A. Giannakoudakis, Eder Claudio Lima, Joel Vargas, Claudia Aguilar
Summary: In this study, biomass from Moringa oleifera seeds and leaves was used as low-cost biosorbents to remove heavy metal ions from aqueous solutions. The experimental kinetic data for both S-MO and L-MO were best described by the pseudo-second-order model, and the Langmuir model was used to determine the maximum sorption capacities for different metal ions. Overall, the biosorbents showed promising potential for the removal of Pb(II), Cd(II), Co(II), and Ni(II) from water.
Article
Biotechnology & Applied Microbiology
S. Aparicio-Vazquez, C. Fall, M. Islas-Espinoza, D. Alcantara, V Petranovskii, M. T. Olguin
Summary: The study investigated the conditioning parameters and characterization of silver-modified clinoptilolite-rich tuffs, as well as their bactericidal activity against Escherichia coli. The results show that the inhibition rate of E. coli depends on the release of silver from the modified zeolitic materials and the location of silver ions in the zeolite network. Materials conditioned at room temperature in static contact exhibited the highest bacterial inhibition rate.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Green & Sustainable Science & Technology
Mohamed Abatal, Eder C. Lima, Dimitrios A. Giannakoudakis, Joel Vargas, Ioannis Anastopoulos, Maria T. Olguin, Ismeli Alfonso
Summary: The present study investigated the performance of Pitahaya peel as a low-cost biosorbent in the removal of Co(II), Cd(II), Pb(II), and Ni(II) from single and multi-component solutions. The results showed that Pitahaya peel exhibited good biosorption performance for the metallic species, and the biosorption efficiency changed when the metallic species were mixed. The biomass could be regenerated using nitric acid solution and reused for multiple adsorption and desorption cycles.
Article
Environmental Sciences
C. Fall, L. M. Barron-Hernandez, V. E. Gonzaga-Galeana, M. T. Olguin
Summary: The study investigates the mechanisms and microbial communities of aerobic granular sludge (AGS) reactor involving polyhydroxyalkanoates (PHA) aerobic-storing bacteria, and explores the long-term stability and removal performances of the system. The study finds that the dominant bacteria in the system are PHA-aerobic storing bacteria instead of the expected polyphosphate and glycogen accumulating organisms, providing a stable system for organic and nitrogen removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Romel Gonzalez-Hernandez, Veronica Martinez-Miranda, Ivonne Linares-Hernandez, Luis Antonio Castillo-Suarez, Giovanni Sosa Ceballos, Raul Cortes-Martinez
Summary: Acid mine drainage was successfully treated using a galvanic electrochemical system. Increasing electrode surface area, AN ratio, and treatment time improved pollutant removal. The process effectively removed heavy metals, arsenic, and SO42- through coagulation and precipitation mechanisms.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Environmental Sciences
Y. Perez-Jimenez, I De-la-Rosa-Gomez, D. Alcantara, M. T. Olguin
Summary: The effect of chloride ions on the antimicrobial activity of silver composites was investigated. The adsorption of chloride ions by a composite formed by chitosan and natural zeolite with supported silver nanoparticles obtained by gamma irradiation was also considered. The presence of chloride ions in the solution was found to increase the cell decay time, while without chloride ions, the microbial mortality rate reached 100% within two hours.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
M. Albarran, I De-La-Rosa-Gomez, M. T. Olguin
Summary: Population growth has led to increased attention on water treatments, particularly water disinfection. This paper focuses on the bactericidal activity of silver-modified natural zeolites on suspended Escherichia coli in water, studying parameters such as electrical conductivity.
DESALINATION AND WATER TREATMENT
(2022)
Article
Engineering, Environmental
Maria Soledad Ruiz-Mora, Ruth Alfaro-Cuevas-Villanueva, Veronica Martinez-Miranda, Orlando Hernandez-Cristobal, Raul Cortes-Martinez
Summary: This study investigated the removal of As(V) from aqueous solutions using calcium alginate microspheres encapsulating iron nanoparticles (FeNPs). The FeNPs were successfully encapsulated and uniformly dispersed on the microspheres' surface, leading to significantly fast adsorption kinetics. The microspheres have a great potential to be competitive arsenate adsorbents in water treatment, especially at low FeNPs concentrations.
Article
Chemistry, Multidisciplinary
Perfecto Barragan-Pena, Ma G. Macedo-Miranda, Maria T. Olguin
Summary: The study investigated the behavior of thiourea-modified natural clinoptilolite in removing cadmium from wastewater, demonstrating its efficiency and suggesting treatment in a two-column series.
Article
Engineering, Environmental
Mohamed Abatal, Ioannis Anastopoulos, Dimitrios A. Giannakoudakis, M. T. Olguin
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Engineering, Chemical
C. A. Cima-Mukul, M. T. Olguin, M. Abatal, J. Vargas, Jesus Alberto Barron-Zambrano, Alejandro Avila-Ortega, A. A. Santiago
DESALINATION AND WATER TREATMENT
(2020)
Article
Engineering, Chemical
Arvin Sohrabi, Mousa Meratizaman, Shuli Liu
Summary: This paper simulates and discusses possible solutions to improve the economic and technical performances of a battery-less renewable energy-powered BWRO system under real climate conditions. The study finds that the photovoltaic-based system performs better in terms of specific energy consumption and unused energy ratio.
Article
Engineering, Chemical
Chunlan Pan, Xiaoyin Hu, Vishal Goyal, Theyab R. Alsenani, Salem Alkhalaf, Tamim Alkhalifah, Fahad Alturise, Hamad Almujibah, H. Elhosiny Ali
Summary: This paper introduces a novel waste heat recovery method using the hot flue gas from a ship's engine to produce liquefied hydrogen while meeting the ship's air-conditioning requirement. A comprehensive feasibility assessment is conducted and an artificial neural network with a multiobjective grey wolf optimization method is used for optimization. The findings indicate the highest mean sensitivity index of the flash temperature and the best optimization scenario for exergy efficiency, CO2 emission reduction, and liquefied hydrogen cost.
Article
Engineering, Chemical
Daniele Chinello, Jan Post, Louis C. P. M. de Smet
Summary: In this study, PVDF-based anion-exchange membranes were designed to selectively separate nitrate from chloride. Experimental data showed that increasing the concentration of PVDF enhanced nitrate transport but also increased the membrane electrical resistance. The selectivity of nitrate was found to be independent of the membrane thickness and mainly driven by the increased affinity between the anion and the membrane.
Article
Engineering, Chemical
Umar Noor, Muhammad Fayyaz Farid, Ammara Sharif, Amna Saleem, Zubair Nabi, Muhammad Furqan Mughal, Kiran Abbas, Toheed Ahmed
Summary: Global water scarcity is increasing, and water desalination is an important solution. Multifunctional advanced materials, such as membrane materials and solar-driven desalination, play a crucial role in water desalination. Additionally, these materials can be used for water purification, wastewater treatment, and pollutant elimination.
Article
Engineering, Chemical
Emrah Gumus
Summary: With growing global concerns about climate change and environmental impacts, the use of nuclear energy in naval vessels offers a cleaner and more efficient solution to reduce emissions and address water and energy supply challenges. This study explores a novel system that combines a nuclear-driven supercritical carbon dioxide power cycle with reverse osmosis cogeneration to meet the water and electricity demands in maritime operations, enhancing the sustainability, efficiency, and self-sufficiency of naval vessels. The results indicate that the system has the potential to be a viable and effective solution for naval operations.
Article
Engineering, Chemical
Dao Thi Thanh Huyen, Saikat Sinha Ray, Young -Nam Kwon
Summary: This study focuses on the modification of a commercially available polyamide thin-film composite membrane with a zwitterionic material to enhance its fouling resistance. The modified membrane shows improved salt rejection and reduced permeability compared to the pristine membrane. Fouling tests demonstrate that the modified membrane has a lower fouling ratio and higher recovery ratio. The enhanced antifouling characteristics are attributed to the improved hydrophilicity resulting from the zwitterionic brushes and the salting-in effect.
Article
Engineering, Chemical
Niklas Koeller, Lukas Mankertz, Selina Finger, Christian J. Linnartz, Matthias Wessling
Summary: This study presents a methodology to scale up Flow-electrode Capacitive Deionization (FCDI) technology from lab-scale to pilot-scale systems. By increasing membrane area and using a stacking approach, the FCDI modules were successfully scaled up and achieved a salt transfer rate comparable to lab-scale systems. This provides a foundation for future assessments of energy demand and economics.
Article
Engineering, Chemical
Mona Gulied, Sifani Zavahir, Tasneem Elmakki, Hyunwoong Park, Guillermo Hijos Gago, Ho Kyong Shon, Dong Suk Han
Summary: This study introduces a novel hybrid system that combines direct contact membrane distillation (DCMD) and electrically switched ion exchange (ESIX) to facilitate seawater reverse osmosis (SWRO) brine enrichment and selective lithium recovery.
Article
Engineering, Chemical
Zhiqiang Zhang, Ruifeng Deng, Jiao Zhang, Lu She, Guangfeng Wei, Renyong Jia, Pengyu Xiang, Siqing Xia
Summary: A transmembrane electro-chemisorption system with authigenic acid and base was developed for enhancing ammonia recovery from strong ammonia wastewater. The system efficiently transformed ammonium into free ammonia, which was then adsorbed and recovered through transmembrane chemisorption. This system yielded pure (NH4)2SO4 product and produced valuable byproducts of pure hydrogen and oxygen. Higher applied voltage resulted in better ammonia recovery.
Article
Engineering, Chemical
Alena Popova, Sandrine Boivin, Takuji Shintani, Takahiro Fujioka
Summary: This study aimed to produce a high-integrity RO membrane by forming a polyamide skin layer on a TE support layer, in order to enhance the integrity of the membrane and improve the microbiological safety of potable water reuse.
Article
Engineering, Chemical
Sanjana Yagnambhatt, Saber Khanmohammadi, Jonathan Maisonneuve
Summary: This study investigates the concept of using heat to enhance reverse osmosis (RO) desalination. The effect of temperature on water permeate flux, specific energy, permeate quality, and applied operating pressures is evaluated using an analytical model. The results suggest that under specific conditions, the tradeoff between savings in mechanical pump work and thermal energy input in thermally-enhanced RO can be favorable, leading to overall energy savings.
Article
Engineering, Chemical
Jiangju Si, Chenrui Xue, Shun Li, Linchao Yang, Weiwei Li, Jie Yang, Jihong Lan, Ningbo Sun
Summary: To meet the huge demand for lithium resources, there is an urgent need to develop a new efficient technology for lithium recovery from salt-lake brines. In this study, a selective membrane capacitive deionization system is reported, which achieves high lithium recovery capacity and rate through the use of materials with efficient intercalated pseudo-capacitance and a high specific area porous carbon. The use of a modified thin-coated membrane allows for selective Li+ recovery, and adjusting the concentrations of Li+ and Mg2+ in the feed solution enables higher Li+/Mg2+ selectivity.
Article
Engineering, Chemical
Mohamed R. Salem, R. Y. Sakr, Ghazy M. R. Assassa, Omar A. Aly
Summary: This research proposes a new method of using wasted thermal energies as an additional heating source for solar still distillation units (SSDUs) to increase productivity and reduce pollution and global warming. By testing two SSDUs, the study shows that heating airflow can raise temperatures, enhance freshwater production, and improve system thermal efficiency.
Article
Engineering, Chemical
Qimeng Sun, Miao Sun, Linyan Yang, Yuan Gao, Xinghai Zhou, Lihua Lyu, Chunyan Wei
Summary: This study presents an innovative design and fabrication of a fabric-based conical roll (FCR) evaporator, which enables low-temperature evaporation and achieves high evaporation efficiency with excellent thermal management ability. The evaporator has demonstrated advanced light-harvesting capability and can produce freshwater that meets drinking water standards, showing great potential for applications in desalination and sewage treatment.
Article
Engineering, Chemical
Yidong Zhang, Wangfang Deng, Meiyan Wu, Chao Liu, Guang Yu, Qiu Cui, Pedram Fatehi, Chunlin Xu, Bin Li
Summary: In this study, a novel polydopamine-functionalized lignin-containing pulp foam evaporator with high-efficiency desalination and multi-contaminant adsorption capabilities was designed. The foam evaporator showed excellent light absorption, water absorption, thermal conductivity, and chelation abilities, allowing for solar evaporation and contaminant adsorption synergistically. It also exhibited potential applications in metal ion concentration and contaminated seawater treatments, and demonstrated superior biodegradability compared to poly-styrene foam. This foam material holds promise for developing multifunctional photo-thermal systems for solar-driven water purification.
