Article
Engineering, Environmental
Chih-Wei Chen, Tzu-Ling Yang, Yu-Chie Chen
Summary: Dyes are widely used in different industries for coloring materials, but their discharge into wastewater is a major environmental concern. This study presents a novel method for rapidly removing dyes from aqueous solutions using magnetic metal ions as probes. The developed probes demonstrated high trapping capacities for methylene blue and methyl orange, and their feasibility for real-world applications was confirmed using dishwashing detergent solutions spiked with dyes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Ezgi Demircan Ozelcaglayan, Wayne J. Parker
Summary: This literature review discusses the application of B-Cyclodextrin-based adsorbents for removing organic micropollutants from water. The shape and size of the pollutants affect their adsorption behavior, and the surface charge of the adsorbents plays a role in adsorption under repulsive forces. Common competitors such as natural organic matter and inorganic ions have minimal impact, but small fulvic acids may compete for the B-Cyclodextrin cavity. Desorption of pollutants has been achieved with alcohols and most adsorbents can be reused. The need for enhanced recovery processes and the use of computational tools for future environmental applications are identified.
Article
Chemistry, Applied
Kazuki Kino, Tomoyoshi Sakamoto, Jinghan Yuan, Yoshimasa Amano, Motoi Machida
Summary: Quaternary nitrogen functionalized porous carbon derived from thermally stabilized polyacrylonitrile fiber showed excellent performance in removing nitrate anion from water, with an adsorption capacity of 0.6 mmol/g or more in the pH range of 3-8. The presence of equivalent N-Q sites on the carbon surface contributed to the adsorption performance, which was comparable to ion-exchange resin.
Article
Environmental Sciences
Wojciech Mrozik, Babak Minofar, Thunchanok Thongsamer, Nathacha Wiriyaphong, Sasiwimol Khawkomol, Jidapa Plaimart, John Vakros, Hrissi Karapanagioti, Soydoa Vinitnantharat, David Werner
Summary: This study evaluated the valorisation of agricultural waste materials by transforming them into biochar for water treatment in aquaculture. Coconut husk biochar prepared at 750 degrees C was found to be the most effective sorbent material for removing organic micropollutants from surface water. Ionic strength had a significant impact on sorption, with high salinity decreasing sorption for certain antibiotics but increasing sorption for other pollutants, which should be considered in coastal aquaculture applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Multidisciplinary
Shi-Yao Li, Dan Wang, Yu Qiu, Li-Li Wang, Liu-Pan Yang
Summary: The safety of drinking water is crucial for human health. Organic micropollutants (OMPs) in water have become a significant concern due to their toxicity, non-degradability, easy migration, and broad sources. The adsorption of OMPs in water by macrocycle-crosslinked polymers (MCPs) has gained attention since 2017, inspired by the pioneering work on the adsorption removal of OMPs by porous polymerized beta-cyclodextrins.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Silvana Alfei, Federica Grasso, Valentina Orlandi, Eleonora Russo, Raffaella Boggia, Guendalina Zuccari
Summary: Water pollution from dyes is a widespread problem affecting the environment, plants, animals, and humans. Adsorption is a commonly used method for removing contaminants from water, and researchers have developed low-cost and scalable cationic resins for anionic dye remediation and water decontamination.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Engineering, Environmental
Merima Bukva, Liliane Catone Soares, Luisa Cardoso Maia, Camila Stefanne Dias Costa, Leandro Vinicius Alves Gurgel
Summary: This review analyzes the use of chemically bi-functionalized materials as advanced adsorbents for removing organic and/or inorganic pollutants from water and wastewater. The importance of regeneration and reuse experiments is discussed, and it is highlighted that more studies are needed on waste management of adsorbents. The results show promising adsorption capacities, but further advancements are required for the technology to reach a higher readiness level.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Yu Lei, Huub Rijnaarts, Alette Langenhoff
Summary: This study evaluated the removal of micropollutants in constructed wetlands with different configurations. The use of bark-biochar as a support matrix significantly enhanced the removal of irbesartan and carbamazepine. UVC irradiation as a pre-treatment was more effective in removing micropollutants than sunlight irradiation. After INC pre-treatment, less micropollutants accumulated in the plants in the subsequent wetland unit. The addition of activated sludge and aeration did not improve micropollutant removal. A bark-biochar based system combined with UVC pre-treatment showed better micropollutant removal than a conventional sand wetland.
Article
Biotechnology & Applied Microbiology
Nuo Chen, Tianhui Zhao, Zhenyu Li, Xianming Yue, Guolian Li, Jiamei Zhang, Xing Chen, Haibing Li, Jing Liu, Fazhi Xie, Zhi Tang, Yulin Song, Rongrong Chen, Jie Gan, Ying Li
Summary: A co-precipitation approach was used to produce a novel iron-calcium-lanthanum (Fe-Ca-La) trimetallic composite for efficient phosphate removal from water. The composite exhibited an amorphous structure and showed a high adsorption capacity for phosphate at acidic conditions. The adsorption process was highly spontaneous and endothermic. The composite also demonstrated good resistance to interference from other anions.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Environmental Sciences
Bushra Fatima, Sharf Ilahi Siddiqui, Ranjeet Kumar Nirala, Kumar Vikrant, Ki-Hyun Kim, Rabia Ahmad, Saif Ali Chaudhry
Summary: ZnO-CdWO4 nanoparticles synthesized using lemon leaf extract show promising results as an adsorbent for Congo red dye, with high adsorption capacity. The exothermic and spontaneous nature of the adsorption process, along with kinetic studies, suggest that ZnO-CdWO4 nanoparticles are effective for removing Congo red dye from aqueous solutions.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Luan de Souza Leite, Maria Teresa Hoffmann, Fabio Simoes de Vicente, Danilo Vitorino dos Santos, Alexandre Mesquita, Felipe Bonganhi Juliato, Luiz Antonio Daniel
Summary: This study evaluated the removal of algal organic matter (AOM) and its compounds by new adsorbents. The results showed that SBA-16 and CA had better removal efficiency, especially in reducing disinfection by-products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Geochemistry & Geophysics
Bouchra Marouane, Maria Klug, Karel S. As, Jacqueline Engel, Susan Reichel, Eberhard Janneck, Stefan Peiffer
Summary: Granulated schwertmannite shows promising adsorption capacity and significant removal of oxyanions, especially under acidic conditions. The study demonstrates the importance of considering the trade-off between residence time and sorption kinetics when selecting filter bed materials.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2021)
Review
Environmental Sciences
Paulina Alulema-Pullupaxi, Patricio J. Espinoza-Montero, Carol Sigcha-Pallo, Ronald Vargas, Lenys Fernandez, Juan M. Peralta-Hernandez, J. L. Paz
Summary: Water pollution is a growing environmental problem due to population growth, industrialization, and agricultural expansion. Conventional wastewater treatment methods are ineffective in removing organic and toxic pollutants, but electrochemical advanced oxidation processes, particularly photoelectrocatalysis (PEC), offer a promising solution. PEC technology involves applying bias potential to a semiconductor film on a conductive substrate to enhance degradation of pollutants in water.
Article
Environmental Sciences
Silvana Alfei, Valentina Orlandi, Federica Grasso, Raffaella Boggia, Guendalina Zuccari
Summary: Nitrites are an environmental issue derived from the oxidation of ammonia by various sources. Cationic resins forming hydrogels showed high efficiency in removing anionic dyes from water. In this study, the removal efficiency of these hydrogels in adsorbing nitrites was evaluated, and they were found to successfully remove nitrites from water. The regenerable nature of these hydrogels make them promising for the treatment of nitrite-contaminated drinking water.
Article
Environmental Sciences
A. Saner, P. N. Carvalho, J. Catalano, K. Anastasakis
Summary: This study demonstrates the potential of utilizing hydrothermal liquefaction (HTL) waste residue as renewable adsorbents and investigates the influence of chemical activation conditions. Acid washed demineralized adsorbents show higher adsorption capacity for compound removal from wastewater. Implementation of HTL technology in wastewater treatment facilities can not only valorize sewage sludge and nutrients, but also provide precursors for renewable adsorbents, enhancing technology integration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Stephanie L. Rich, Michael T. Zumstein, Damian E. Helbling
Summary: The research aimed to identify functional groups that influence rates of micropollutant biotransformation in wastewater microbial communities. Through incubation experiments and random forest models, 30 functional groups were classified as biotransformation promoters, inhibitors, features that can be transformed, or features that are not rate-determining, providing new insights for predicting micropollutant biotransformations and designing more biodegradable chemical products for wastewater treatment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Casey Ching, Yuhan Ling, Brittany Trang, Max Klemes, Leilei Xiao, Anna Yang, Gokhan Barin, William R. Dichtel, Damian E. Helbling
Summary: This study investigated the adsorption performance of Cyclodextrin polymers (CDPs) with different physicochemical properties on perfluoroalkyl acids (PFAAs). The results showed that the surface charge, porosity, crosslinker content, hydrophobic crosslinker, and particle size of CDPs have significant influences on the adsorption of PFAAs.
Review
Chemistry, Analytical
Mohamed Ateia, Gamze Ersan, Mohamed Gar Alalm, Daria Camilla Boffito, Tanju Karanfil
Summary: This study compiles and analyzes various findings on microplastics and their environmental impacts, highlighting the need for a better understanding of their behavior and the importance of standardizing methods and parameters for future research.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2022)
Review
Environmental Sciences
Youn Jeong Choi, Damian E. Helbling, Jinxia Liu, Christopher Olivares, Christopher P. Higgins
Summary: This review examines the microbial biotransformation of polyfluoroalkyl substances derived from aqueous film-forming foam (AFFF). The analysis reveals that there is more knowledge about the aerobic microbial biotransformation of these substances compared to anaerobic biotransformation. Dealkylation, oxidation, and hydrolytic reactions are found to be important for the microbial biotransformation of AFFF-derived polyfluoroalkyl substances. The review also discusses knowledge gaps and opportunities for further research.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Ri Wang, Zhi-Wei Lin, Max J. Klemes, Mohamed Ateia, Brittany Trang, Jieyuan Wang, Casey Ching, Damian E. Helbling, William R. Dichtel
Summary: This study introduces a new beta-cyclodextrin (beta-CD) polymer platform with high removal efficiency for per- and polyfluoroalkyl substances (PFASs). The polymer exhibits high specific surface area and can be tailored through radical polymerization. It demonstrates great promise for anionic PFAS removal and provides insight into the adsorption mechanisms.
ACS CENTRAL SCIENCE
(2022)
Article
Chemistry, Physical
Kareem Yusuf, Anusree Natraj, Kelvin Li, Mohamed Ateia, Zeid A. ALOthman, William R. Dichtel
Summary: Two-dimensional polymers in the form of layered covalent organic frameworks (COFs) show promise as adsorbent-based separations due to their tunable properties. High-quality single crystals of two 2D COFs exhibit improved separation characteristics in gas chromatography compared to polycrystalline samples. In this study, inverse pulse gas chromatography was used to characterize the dispersive and specific adsorption properties of single-crystalline and polycrystalline COFs for the separation of linear n-alkanes and polar probes.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mohamed Ateia, Jean Van Buren, William Barrett, Todd Martin, Gerard G. Back
Summary: One type of firefighting foam, AFFF, contains PFAS, which has raised concerns about its environmental and health impacts. In response, there has been a surge in research on fluorine-free alternatives, and a new military specification for fluorine-free foam was released in January 2023. This paper critically analyzes the current state of fluorine-free options, exploring the challenges and opportunities in terms of performance, cost, and regulations. The evaluation shows that the transition to fluorine-free replacements is complex and requires careful consideration of trade-offs, but it provides valuable insights for future research and enhancing the safety and sustainability of fire suppression systems.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Mohamed Ateia, Dora Chiang, Michaela Cashman, Carolyn Acheson
Summary: The comprehensive characterization of per- and polyfluoroalkyl substances (PFASs) is crucial for assessing and managing risk at contaminated sites. However, current analytical methods only measure specific PFASs, leaving out the potential thousands of PFASs used in commercial products and released into the environment. The total oxidizable precursor (TOP) assay offers a way to bridge this gap by converting unknown PFAS precursors into stable PFASs, but its application beyond academia is limited.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Review
Engineering, Environmental
Amrita Nighojkar, Karl Zimmermann, Mohamed Ateia, Benoit Barbeau, Madjid Mohseni, Satheesh Krishnamurthy, Fuhar Dixit, Balasubramanian Kandasubramanian
Summary: With increasing environmental awareness, biomaterials have attracted attention as sustainable materials for adsorbing hazardous water contaminants. However, the complex nonlinear interactions between adsorbent properties and process attributes present challenges. Artificial neural networks have been utilized to understand metal adsorption processes on biomaterials, with applications in environmental remediation and water reuse.
ENVIRONMENTAL SCIENCE-ADVANCES
(2023)
Article
Green & Sustainable Science & Technology
Mohamed Ateia, Gabriel Sigmund, Michael J. Bentel, John W. Washington, Adelene Lai, Nathaniel H. Merrill, Zhanyun Wang
Summary: Accessing a clean and healthy environment is not only a human right, but also crucial for the sustainability of ecosystems. However, the lack of connectivity between experts in different domains, specifically in the chemical life cycle, has hindered effective management of chemical water pollution. To address this issue, an integrated data-driven framework is proposed to foster proactive action and enhance collaboration across domains, resulting in novel approaches that bring multiple benefits. Adopting open and FAIR data practices, developing common knowledge bases/platforms, and monitoring new substance properties are essential for successful implementation of this integrated framework.
Article
Multidisciplinary Sciences
Brittany Trang, Yuli Li, Xiao-Song Xue, Mohamed Ateia, K. N. Houk, William R. Dichtel
Summary: Per- and polyfluoroalkyl substances (PFAS) are harmful pollutants that can be mineralized through a sodium hydroxide-mediated defluorination pathway. The degradation process involves the production of reactive perfluoroalkyl ion intermediates, leading to the formation of fluoride ions.
Article
Engineering, Environmental
Manna Wang, Mohamed Ateia, Yuta Hatano, Chihiro Yoshimura
Summary: Bacterial regrowth after water/wastewater disinfection poses serious risks to public health. This study assessed the regrowth of E. coli in environmental waters after chlorine disinfection, and found that chlorine treatment induced a majority of E. coli to enter a viable but non-culturable state. A second-order regrowth model accurately described the temporal shift of the survival ratio of culturable E. coli. The study highlights the need to investigate the detailed relation of regrowth to environmental conditions.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Indranil Roy, Austin M. Evans, Partha Jyoti Das, Mohamed Ateia, Matthew R. Ryder, Leighton O. Jones, Masoud Kazem-Rostami, Subhadip Goswami, Yassine Beldjoudi, Dengke Shen, George C. Schatz, Joseph T. Hupp, William R. Dichtel, J. Fraser Stoddart
Summary: A cyclophane-based 2DP with excellent crystalline porous properties was successfully synthesized at a liquid-liquid interface using click chemistry. The 2DP exhibited outstanding rejection performance for a dye when used as the active layer in nanofiltration membranes.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Environmental Sciences
Uwe Huebner, Christian Wurzbacher, Damian E. Helbling, Jorg E. Drewes
Summary: This review explores the biotransformation of TOrCs in managed aquifer recharge systems and efforts to enhance its efficiency, such as optimizing environmental conditions, inoculating specific TOrCs degraders, and stimulating degrader activity. Further research is needed for their application in MAR systems.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2022)
Article
Water Resources
Anya Sherman, Walter Alejandro Guardado Mejia, Natasha Ramos Padilla, Corey M. G. Carpenter, Stephanie L. Rich, Erika Tenorio Moncada, Damian E. Helbling
Summary: The research explored the occurrence of biocides in drinking water resources in Honduras. The study found a strong correlation between bean production and the complexity and concentrations of biocide mixtures. Biocide mixture complexity was higher during the rainy season, while concentrations were lower. Existing drinking water treatment plants were not consistently effective at removing biocides.