Article
Engineering, Chemical
Raissa Antonelli, Geoffroy Roger Pointer Malpass, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira
Summary: This study investigated the adsorption behavior of antibiotic ciprofloxacin in a calcined Verdelodo clay-packed fixed-bed system. The experimental results showed a breakthrough adsorption capacity of 0.038 mmol g(-1) and a mass transfer zone of 4.29 cm. Comparison with ofloxacin adsorption performance and density functional theory computations were also conducted.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Environmental
Pummarin Khamdahsag, Dickson Y. S. Yan, Pongnapa Poompang, Nichapa Supannafai, Visanu Tanboonchuy
Summary: Arsenite was effectively removed via oxidation and adsorption in fixed-bed columns using K-OMS2 and Fe-BTC. K-OMS2 showed high efficiency in oxidizing As(III) to As(V) with leached Mn and K concentrations below the groundwater standard. Fe-BTC exhibited good adsorption capacity for As(V) with low Fe leaching and more than 75% removal efficiency. In the combined use of the two columns, over 62% of total As was removed under optimal conditions.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Adane Woldemedhin Kalsido, Beteley Tekola Meshesha, Beshah M. Behailu, Esayas Alemayehu
Summary: In this study, column adsorption studies on acid-treated Bentonite for fluoride removal indicated an optimized operating condition with 100% removal rate, adsorptive capacity of 2.46 mg/g, and desirability of 1.0. The relationship between experimental and expected response values was analyzed, and variance analysis determined the importance of independent variables and their interactions, ultimately proving the success of acid activation for field application of Bentonite adsorbent.
Article
Engineering, Environmental
Jakkapop Phanthasri, Dickson Yuk-Shing Yan, Kitirote Wantala, Rattabal Khunphonoi, Pummarin Khamdahsag, Visanu Tanboonchuy
Summary: Excessive levels of selenium in water are mainly caused by fossil fuels combustion, coal-fired power plant activity, and mining operations. Selenium contamination poses significant risks to human health. Zeolite-supported nanoscale zero-valent iron coated onto bentonite-zeolite pellets has shown promising potential for the removal of selenium in contaminated water.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Md Anwarul Islam, Tewodros Kassa Dada, Mst Irin Parvin, Arun K. Vuppaladadiyam, Ravinder Kumar, Elsa Antunes
Summary: This study investigates the potential of spent coffee grounds biochar in removing silver ions and silver nanoparticles from wastewater, demonstrating the viability and effectiveness of the biochar adsorption process.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Leila Khalfa, Ali Sdiri, Mohamed Bagane, Maria Luisa Cervera
Summary: A natural clay material from southern Tunisia was used as a low cost sorbent in a column-wise removal of metal pollutants, showing promising results for sustainable wastewater treatment strategies. Column adsorption experiments were carried out for production of cleaner effluents and understanding of main removal mechanisms through a dynamic methodology.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Ye Li, Fuxin Gong, Wu Yang, Bingxin Liu
Summary: In this study, NPVMo@iPAF-1 with a specific surface area of 665 m2/g was successfully prepared and exhibited a high adsorption capacity for TCS removal. The mechanism of TCS adsorption onto NPVMo@iPAF-1 was investigated, and the material showed excellent regeneration performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Xuan Han, Yong Zhang, Chunmiao Zheng, Xiangnan Yu, Shiyin Li, Wei Wei
Summary: In this study, a novel nanocrystalline chlorapatite (CIAP) was successfully prepared using eggshell wastes as a calcium source by a green method. The CIAP showed excellent stability and adsorption performance for Cr(VI), and demonstrated potential for multiple reuses. This material has the capability to be a promising candidate for enhancing oxyanion contaminants such as Cr(VI) removal from water.
Article
Environmental Sciences
Esmaeil Allahkarami, Abolfazl Dehghan Monfared, Luis Felipe Oliveira Silva, Guilherme Luiz Dotto
Summary: In this study, fixed-bed experiments were conducted using a novel Pb-Fe spinel-activated carbon adsorbent for phenol uptake from water. The adsorbent was characterized and compared to pristine activated carbon. The results showed that the Pb-Fe spinel-activated carbon composite had a higher adsorption capacity and was suitable for fixed-bed adsorption of phenol.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Green & Sustainable Science & Technology
Shanmuk Srinivas Ravuru, Animesh Jana, Sirshendu De
Summary: In this study, nickel aluminium layered double hydroxide (NiAl LDH) was synthesized and impregnated into polysulfone matrix to form mixed matrix beads (MMBs) for the upscaling of adsorptive columns in cyanide effluent treatment. The stability of the impregnated LDH nanoparticles was confirmed, and the adsorption mechanism of cyanide in steel plant effluent was established. A macroscopic transport model was used to predict the adsorption kinetics and simulate the breakthrough behavior of continuous column experiments, leading to the scaling-up of the adsorption columns and the generation of a performance curve.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Ying Yang, Huixiong Jiang, Jianguo Yu
Summary: This study systematically investigated the desorption process for lithium recovery from simulated salt lake brine using an adsorption method. Temperature is found to significantly impact the desorption process, while washing volume affects the elution rate of lithium. The concentration-dependent Homogeneous Surface Diffusion Model (HSDM) was developed to fit and simulate the dynamic elution performance of lithium in fixed bed columns.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Jonathan C. Callura, Qingyang Shi, David A. Dzombak, Athanasios K. Karamalidis
Summary: This study investigated the extraction of rare earth elements (REE) from saline solutions using polymer resin beads functionalized with N,N-bis(phosponomethyl)glycine (BPG). The results showed that the BPG-functionalized resins were highly selective for REE and could efficiently adsorb and recover heavy metals. Competitive batch adsorption experiments and column experiments demonstrated the high adsorption efficiency and recovery rate of REE using BPG-functionalized resins.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Awalina Satya, Ardiyan Harimawan, Gadis Sri Haryani, M. A. H. Johir, Luong N. Nguyen, Long D. Nghiem, Saravanamuthu Vigneswaran, Huu Hao Ngo, Tjandra Setiadi
Summary: This study focused on investigating the removal of cadmium from contaminated water by cyanobacterium, and studied the impact of different conditions on the breakthrough characteristics of adsorption column. It was found that the cyanobacterium had high adsorption capacity and efficiency under specific conditions, but the regeneration efficiency needs further improvement.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Dereje Tadesse Mekonnen, Esayas Alemayehu, Bernd Lennartz
Summary: The research explored the adsorption potential of leftover coal material to remove phosphate from aqueous solutions. Experimental breakthrough curve analysis showed the effectiveness of phosphate adsorption onto the coal material, with maximum adsorption capacity at specific operational parameters. The Adams-Bohart model was found to best represent the experimental data and can be utilized for designing technical scale filter units for purifying phosphorus-laden water.
Article
Environmental Sciences
Caroline Maria Bezerra de Araujo, Gessica Wernke, Marcos Gomes Ghislandi, Alexandre Diorio, Marcelo Fernandes Vieira, Rosangela Bergamasco, Mauricio Alves da Motta Sobrinho, Alirio Egidio Rodrigues
Summary: This study demonstrates that the agar-graphene oxide (A-GO) hydrogel is a viable and eco-friendly alternative for the selective removal of chloroquine diphosphate and the cationic dye Safranin-O from water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Ruth Nobrega Queiroz, Meuris Gurgel Carlos da Silva, Valmor Roberto Mastelaro, Patricia Prediger, Melissa Gurgel Adeodato Vieira
Summary: A green magnetic composite was synthesized and used for the adsorption of naphthalene from effluents. The composite showed good adsorption performance and could be effectively regenerated for reuse.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Francisco Lucas Chaves Almeida, Mariana Pereira Silveira, Izabela Dutra Alvim, Talles Barcelos da Costa, Thiago Lopes da Silva, Melissa Gurgel Adeodato Vieira, Ana Silvia Prata, Marcus Bruno Soares Forte
Summary: This study evaluated the effect of bead size on the performance of immobilized lipase. Lipase was immobilized on calcium alginate beads by jet cutting and dripping. The results showed that bead size influenced the surface area, porosity, and enzyme activity of the immobilized lipase.
FOOD AND BIOPRODUCTS PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Maria Vitoria Silva Nicolini, Wedja Timoteo Vieira, Meuris Gurgel Carlos da Silva, Laura de Oliveira Nascimento, Melissa Gurgel Adeodato Vieira
Summary: A carrier based on κ-carrageenan and sericin biomacromolecules was developed to improve the treatment efficacy and patient adherence of mefenamic acid, an acid analgesic drug. The produced particles showed high encapsulation rates and drug loading, with a reproducible spherical shape and size. In vitro release experiments demonstrated good gastroresistance and sustained release properties. Cell viability assays confirmed the biocompatibility of the carrier. These findings suggest the potential application of the proposed polymer matrix for intestinal delivery of mefenamic acid.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Environmental Sciences
Natalia Gabriele Camparotto, Gustavo Rocha Paixa, Giani de Vargas Briao, Rafael L. Oliveira, Patricia Prediger, Melissa Gurgel Adeodato Vieira
Summary: Mesoporous doped-carbons were synthesized from natural sources sucrose, boric acid, and cyanamide, resulting in B- or N-doped carbon materials. Extensive characterization confirmed the tridimensional doped porous structure of the materials. B-MPC and N-MPC exhibited high specific surface areas above 1000 m(2)/g. Adsorption assays using diclofenac sodium and paracetamol as model pollutants showed removal capacities of 78 and 101 mg.g(-1), respectively. The adsorption process was governed by external and intraparticle diffusion and multilayer formation, attributed to strong adsorbent/adsorbate interactions. Hydrogen bonds and Lewis acid-base interactions were identified as the main attractive forces through DFT-based calculations and experimental assays.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Wedja Timoteo Vieira, Meuris Gurgel Carlos da Silva, Laura de Oliveira Nascimento, Melissa Gurgel Adeodato Vieira
Summary: This study developed a natural and multiparticulate carrier using k-carrageenan and sericin for encapsulation of indomethacin to minimize gastrointestinal effects. Increasing the amount of indomethacin in the formulations slightly decreased the entrapment efficiency and drug loading. Sericin was essential to improve these parameters compared to pure k-carrageenan. The particles showed pH-responsive release and a controlled drug-release mechanism by diffusion.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Ana Beatriz Vitorino de Farias, Talles Barcelos da Costa, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira
Summary: Functionalized alginate/vermiculite-based particles (ALEV) with ionic imprinting were used for the recovery of Ce3+ from aqueous solutions through biosorption. The kinetics followed a pseudo-second-order model and were mainly controlled by external diffusion. The equilibrium data fit well with the Langmuir model, with a maximum biosorption capacity of 0.671 mmol/g at 45 degrees C. The process was found to be spontaneous and endothermic based on thermodynamic evaluations. The particles could be reused and Ce3+ recovery achieved for up to four cycles using 0.1 mol/L HCl or 1.0 mol/L CaCl2 solutions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Giani de Vargas Briao, Dison Stracke Pfingsten Franco, Flavio Vasconcelos da Silva, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira
Summary: This study applied novel empirical methods such as artificial neural networks (ANN) and adaptive neuro-fuzzy inference system (ANFIS) to model the adsorption of the rare earth metal dysprosium on expanded vermiculite. The results showed that under the best experimental conditions, vermiculite achieved a removal efficiency of 99.2% for dysprosium.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Biochemistry & Molecular Biology
Wedja Timoteo Vieira, Meuris Gurgel Carlos da Silva, Laura de Oliveira Nascimento, Melissa Gurgel Adeodato Vieira
Summary: This study encapsulated indomethacin (IND) in a crosslinked k-Car/Ser polymeric matrix using covalent and thermal methods to evaluate drug delivery modulation and properties. The particles showed a spherical shape and a rough surface, with a mean diameter range of 1.38-2.15 mm (CCA) and 1.56-1.86 mm (thermal crosslinking). The in vitro release in acidic medium (pH 1.2) and phosphate buffer saline solution (pH 6.8) was 1.23-6.81% and 81-100%, respectively. The formulations remained stable after 6 months and exhibited a diffusion mechanism, swelling, and relaxation of chains. The indomethacin-loaded k-carrageenan/sericin/CMC formulations showed increased cell viability and potential as drug delivery carriers.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Tauany de Figueiredo Neves, Natalia Gabriele Camparotto, Giani de Vargas Briao, Valmor Roberto Mastelaro, Melissa Gurgel Adeodato Vieira, Renato Falcao Dantas, Patricia Prediger
Summary: This study applied PAN membranes containing graphene oxide functionalized with safranin dye (hPAN@GO-SF) to the adsorption of complex dyes, pharmaceuticals, and surfactants in water and real samples. The results showed that electrostatic interactions and H-bonding are the main mechanism in single-component systems, with chemisorption also present. In multi-component systems, the adsorption potential of the membrane increased significantly due to cooperative effects, making it a potential adsorbent for wastewater treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Wardleison M. Moreira, Paula V. Viotti Moreira, Talles B. da Costa, Marcelino L. Gimenes, Melissa G. A. Vieira
Summary: This study developed iron-functionalized rigid carbon foam as an alternative adsorbent to remove herbicides from water bodies. The foam was developed from tannin and starch and carbonized using glycerol and citric acid as cost-effective and less toxic alternatives. The functionalization of the foam with iron improved herbicide adsorption, with the highest uptake capacity for Atrazine. Density Functional Theory (DFT) was used to optimize the herbicides' bond lengths and analyze their stability, demonstrating the potential effects of steric hindrance on adsorption.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Emanuele D. V. Duarte, Wedja T. T. Vieira, Rodrigo O. O. Goes, Luiz E. C. de Azevedo, Melissa G. A. Vieira, Meuris G. C. da Silva, Samira M. L. de Carvalho
Summary: In this study, a sustainable precursor, raw clay (RC), was obtained from the Amazon region in Brazil and purified to form a clay-based adsorbent (CBA). The CBA was characterized using various techniques and used to remove basic yellow 2 (BY2) dye from aqueous solutions, achieving a removal rate of 98% under optimal conditions. The correlation between quantum chemical descriptors and experimental results suggests that BY2 dye is adsorbed on the CBA surface through electrostatic interactions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Talles Barcelos da Costa, Thiago Lopes da Silva, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira
Summary: This study evaluates the adsorption and recovery ability of SA@PEGDGE beads synthesized from sericin, alginate, and PEGDGE for Eu3+. The results showed that pH 5.0 had the highest adsorption capacity. Kinetic and equilibrium models accurately represented the adsorption results. Hydrochloric acid (0.1 mol/L) achieved efficient recovery of Eu3+ from SA@PEGDGE, which could be reused for multiple adsorption cycles. The characterization analysis revealed the morphology and adsorption mechanisms of SA@PEGDGE beads. The results suggest that crosslinked sericin/alginate particles can be a sustainable alternative for the recovery of critical REEs from wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Computer Science, Information Systems
J. Herp, Jan-Matthias Braun, M. L. Cantuaria, Ashkan Tashk, T. B. Pedersen, M. H. A. Poulsen, M. Krogh, E. S. Nadimi, S. P. Sheikh
Summary: Electronic health records are a valuable resource for data-driven diagnosis and disease progression. A model has been developed to predict future steps in the journey of prostate cancer patients and their metastases. The model shows high accuracy in predicting metastasis-related events and can aid in earlier diagnosis and quality assurance of procedures.
Article
Environmental Sciences
Raissa Antonelli, Geoffroy Roger Pointer Malpass, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira
Summary: This study investigated the possibility of electrochemical-based regeneration of clay-type materials and demonstrated the high regeneration efficiencies after 1 h of photo-assisted electrochemical oxidation. The clay was relatively stable during regeneration and able to remove antibiotics even in the presence of natural interfering agents. The electrochemical-based regeneration of clay showed potential for the treatment of emerging contaminants with shorter treatment time (1h) and lower energy consumption (3.93 kWh kg(-1)).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Wardleison Martins Moreira, Paula Valeria Viotti Moreira, Debora Federici Dos Santos, Marcelino Luiz Gimenes, Melissa Gurgel Adeodato Vieira
Summary: The lignocellulose biorefinery industry plays a significant role in the current scenario. Processing lignin waste into nanolignin has attracted the scientific community's attention, as it has excellent properties and potential in various applications. This review covers the emergent scenario of nanolignin, including conversion and functionalization of lignin, valorization of lignocellulosic waste, and nanoparticle synthesis. It also includes a techno-economic evaluation of the nanolignin synthesis and a life cycle assessment to evaluate the environmental implications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
