Review
Environmental Sciences
Lisbania Velarde, Mohammad Sadegh Nabavi, Edwin Escalera, Marta-Lena Antti, Farid Akhtar
Summary: Water pollution is a global issue that threatens human health, particularly the safe supply of drinking water. Natural zeolites have shown promise in effectively removing heavy metals from contaminated water sources. This review examines the application of different natural zeolites for removing heavy metals such as arsenic, cadmium, chromium, lead, mercury, and nickel. Various chemical modifications of natural zeolites, as well as their sorption capacities and properties, are analyzed and compared. Clinoptilolite, in particular, is the most commonly used natural zeolite for heavy metal removal, demonstrating effectiveness against a range of heavy metals.
Article
Engineering, Environmental
Haiyang Tao, Yingshu Liu, Jinjuan Li, Chuanzhao Zhang, Chunyu Zhao, Xiong Yang, Ralph T. Yang, Ziyi Li
Summary: Adsorption is a promising technology for deep purification of nitrogen oxides (NOx) from flue gases and simultaneously recycling NO2. This study conducted experimental evaluations on practical NOx sorption performances on series of zeolites, revealing the impact of zeolite typological structure, compensating cation, and SiO2/Al2O3 ratio on purification efficacy and regenerability. The findings provide insights into the relationships between NOx adsorption performances and zeolite properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Materials Science, Multidisciplinary
Kanfolo Franck Herve Yeo, Chaokun Li, Hui Zhang, Jin Chen, Wendong Wang, Yingying Dong
Summary: Arsenic contamination in water bodies, especially groundwater, has become a widespread issue in recent decades. Traditional methods for arsenic removal are costly and produce sludge, limiting their application in less developed areas. The use of adsorbents derived from natural materials is a more cost-effective approach for arsenic removal.
Article
Engineering, Environmental
Zhao-Feng Yuan, Tong-Yao Pu, Chen -Yu Jin, Wei-Jia Feng, Jia-Yue Wang, Williamson Gustave, Jonathan Bridge, Yi-Li Cheng, Xian-Jin Tang, Yong-Guan Zhu, Zheng Chen
Summary: This study presents a method of extracting arsenic from contaminated soil using plastic tubes, which are covered with iron oxides that can easily be separated from the soil, providing a low-cost and sustainable soil remediation technique.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Grandprix T. M. Kadja, Elsa Dwihermiati, Fuja Sagita, Kholifatul Mukhoibibah, Khairul Umam, Mia Ledyastuti, Cynthia L. Radiman
Summary: Functionalized natural zeolite combined with PVDF matrix enhances the filtration performance and antifouling properties of mixed matrix membranes, leading to effective removal of azo dye-containing wastewater.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Sebastian Dudek, Dorota Kolodynska
Summary: In this study, the commercially available iron oxide sorbent was modified with lanthanum(III) ions for enhanced removal of arsenate(V) from water. Various analyses were conducted to characterize the modified ion exchanger and investigate the adsorption process. The results showed improved sorption properties of the modified sorbent, with a 55% increase in maximum sorption capacity and higher removal efficiency at various initial As(V) concentrations.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Environmental Sciences
Xianjun Xie, Chun Lu, Rui Xu, Xueqian Yang, Lu Yan, Chunli Su
Summary: Fe-Mn bimetallic oxides with mesoporous structure were synthesized and studied for arsenic removal, with Fe1Mn1-300 showing the largest specific surface area and maximum arsenic absorption capacity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Jeffrey Paulo H. Perez, Adrian Alexander Schiefler, Sandra Navaz Rubio, Markus Reischer, Niels Dossing Overheu, Liane G. Benning, Dominique J. Tobler
Summary: This study demonstrates the potential of green rust (GR) in treating arsenic (As) contamination in groundwater. Lowering temperature or adding arsenic can increase the stability of GR, reducing the solubility of arsenic and effectively immobilizing it in the mineral. This ultimately improves the efficiency of arsenic remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Michael P. Thorgersen, Jennifer L. Goff, Farris L. Poole, Kathleen F. Walker, Andrew D. Putt, Lauren M. Lui, Terry C. Hazen, Adam P. Arkin, Michael W. W. Adams
Summary: Environmental contamination affects microbial communities by limiting diversity and total metabolic activity. The study investigates metal contamination in sediment and finds that the operational speciation of certain elements changes due to contamination. Furthermore, the availability of essential elements also changes. The decreased operational speciation of phosphorus in contaminated sediment may increase the dependence of microbial communities on other phosphorus sources.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Thi Hai Nguyen, Anh Thao Nguyen, Paripurnanda Loganathan, Tien Vinh Nguyen, Saravanamuthu Vigneswaran, Thi Hoang Ha Nguyen, Hai Nguyen Tran
Summary: The study evaluated the performance of a low-cost natural laterite from Vietnam in removing arsenic from contaminated groundwater in household filters. After seven months of continuous operation, the treatment effect met the local and WHO drinking water standards. Through a solidification/stabilization process, the mobility of arsenic in the waste was controlled, and the concrete brick products showed suitable compressive strength for construction use.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Environmental Sciences
Esmeralda Vences-Alvarez, Luis F. Chazaro-Ruiz, J. Rene Rangel-Mendez
Summary: Bimetallic oxy(hydroxides) have gained significant interest in water treatment for their potential as highly efficient anion adsorbents. This study focuses on the synthesis of cerium and iron bimetallic oxyhydroxides (Ce:Fe-P's) using microwave-assisted methods. The Ce:Fe-P's exhibit outstanding adsorption capacity and fast adsorption kinetics for arsenic(V), with little interference from pH and coexisting anions. The results suggest that Ce:Fe-P's are a promising adsorbent material for arsenic(V) in water treatment.
Article
Chemistry, Physical
Dylan Chaillot, Vincent Folliard, Jocelyne Miehe-Brendle, Aline Auroux, Liva Dzene, Simona Bennici
Summary: The increasing awareness of global warming and the need to reduce greenhouse gas emissions have prompted the search for alternative applications using easy-to-use materials to control and decrease global CO2 emissions. Layered Double Hydroxides (LDHs) and LDH-derived materials have shown potential as cost-effective and highly effective CO2 adsorbents due to their easy synthesis, high sorption capacity, and surface basicity. This study focuses on the synthesis and characterization of hydrotalcites using a mild-conditions coprecipitation process, and the production of derived mixed oxides for CO2 adsorption. Results show a linear correlation between the surface basicity of the derived mixed oxides (measured by adsorption calorimetry) and the CO2 sorption capacity.
Article
Environmental Sciences
Malcolm Watson, Jasmina Nikic, Aleksandra Tubic, Marijana Kragulj Isakovski, Marko Solic, Bozo Dalmacija, Jasmina Agbaba
Summary: This study investigated the reuse of spent filter sand (SFS) as an adsorbent for treating arsenic contaminated drinking water, comparing its performance with synthetic iron oxide coated sands (IOCS). The results suggest that SFS may be successfully reused as a very economically and environmentally sustainable solution for small waterworks requiring both As(V) and As(III) removal during drinking water treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Davide Pinelli, Alessia Foglia, Francesco Fatone, Elettra Papa, Carla Maggetti, Sara Bovina, Dario Frascari
Summary: This study experimentally verified a new method for effectively recovering ammonium from municipal wastewater. The selected sorbent demonstrated high performance and stable behavior during continuous use. The results of the study indicate significant potential for this method in the context of a circular economy approach.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yanjun Hu, Mingzhe Li, Nan Zhou, Hao Yuan, Qianqian Guo, Long Jiao, Zengyi Ma
Summary: This study investigates catalytic stepwise pyrolysis as a pretreatment step to remove chlorine from PVC-containing plastic wastes. The results show that temperature, heating rate, and catalysts are key factors that influence the pretreatment effect. Metal oxides mainly act as adsorbents of HCl gases, while ZSM-5 catalysts promote the release of HCl.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Chemistry, Analytical
Sabrina N. Vettorelo, Fernando Garay
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2018)
Article
Chemistry, Physical
N. Balsamo, S. Mendieta, A. Heredia, M. Crivello
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Analytical
Jenny Gomez Avila, Angelica C. Heredia, Monica E. Crivello, Fernando Garay
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Physical
Nancy F. Balsamo, Silvia N. Mendieta, Aleksey Vasiliev, Monica E. Crivello
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2019)
Article
Engineering, Chemical
Angelica C. Heredia, M. M. de la Fuente Garcia-Soto, Adolfo Narros Sierra, Sandra M. Mendoza, Jenny Gomez Avila, Monica E. Crivello
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Chemistry, Analytical
Sabrina N. Vettorelo, Mariela Cuellar, Patricia I. Ortiz, Fernando Garay
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2019)
Article
Engineering, Chemical
Ulises A. Agu, Silvia N. Mendieta, Maria Gerbaldo, Monica E. Crivello, Sandra G. Casuscelli
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Analytical
Jenny Gomez Avila, Jhan Carlos Burgos Gomez, Angelica C. Heredia, Monica E. Crivello, Fernando Garay
Summary: This study presents a mechanistic analysis of the cathodic stripping square-wave voltammetric response of the copper-arsenic system, where a mathematical model is used to evaluate the stability constant of arsenide formation and other parameters. Simulation results indicate the reduction of copper instead of arsenic during the cathodic stripping scan, and the formation of a metal complex in the presence of copper.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Fernando Garay, Sabrina N. Vettorelo
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2020)
Article
Engineering, Chemical
Maria Veronica Gerbaldo, Sergio Gustavo Marchetti, Veronica Rita Elias, Silvia Nazaret Mendieta, Monica Elsie Crivello
Summary: This study investigated the removal of sodium diclofenac using a heterogeneous Photo-Fenton process. Cobalt ferrites prepared by Pechini method and calcined at different temperatures showed good performance in the reaction, with a proposed degradation mechanism based on the generation of *OH groups. The catalyst exhibited efficient degradation and mineralization capabilities, showing promise for practical applications.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Multidisciplinary Sciences
Ma F. Peralta, S. N. Mendieta, I. R. Scolari, G. E. Granero, M. E. Crivello
Summary: Carbamazepine (CBZ) was incorporated into layered double hydroxides (LDH) to create a controlled drug system for solid tumors. It was found that the LDH-CBZ system without sodium cholate (SC) showed better performance in terms of release kinetics and thermal stability compared to the system with SC. This study expands the potential applications of LDH as a controlled drug system for a wide range of non-ionic drugs without the need for additional components.
SCIENTIFIC REPORTS
(2021)