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An S, Nam SN, Choi JS, Park CM, Jang M, Lee JY, Jun BM, Yoon Y. Ultrasonic treatment of endocrine disrupting compounds, pharmaceuticals, and personal care products in water: An updated review. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134852. [PMID: 38852250 DOI: 10.1016/j.jhazmat.2024.134852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 05/26/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
Pharmaceuticals, personal care products (PPCPs), and endocrine-disrupting compounds (EDCs) have seen a recent sustained increase in usage, leading to increasing discharge and accumulation in wastewater. Conventional water treatment and disinfection processes are somewhat limited in effectively addressing this micropollutant issue. Ultrasonication (US), which serves as an advanced oxidation process, is based on the principle of ultrasound irradiation, exposing water to high-frequency waves, inducing thermal decomposition of H2O while using the produced radicals to oxidize and break down dissolved contaminants. This review evaluates research over the past five years on US-based technologies for the effective degradation of EDCs and PPCPs in water and assesses various factors that can influence the removal rate: solution pH, temperature of water, presence of background common ions, natural organic matter, species that serve as promoters and scavengers, and variations in US conditions (e.g., frequency, power density, and reaction type). This review also discusses various types of carbon/non-carbon catalysts, O3 and ultraviolet processes that can further enhance the degradation efficiency of EDCs and PPCPs in combination with US processes. Furthermore, numerous types of EDCs and PPCPs and recent research trends for these organic contaminants are considered.
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Affiliation(s)
- Sujin An
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Seong-Nam Nam
- Military Environmental Research Center, Korea Army Academy at Yeongcheon, 495 Hoguk-ro, Gogyeong-myeon, Yeongcheon-si, Gyeongsangbuk-do, 38900, Republic of Korea
| | - Jong Soo Choi
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 447-1 Wolgye-dong Nowon-gu, Seoul, Republic of Korea
| | - Ji Yi Lee
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Byung-Moon Jun
- Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 111 Daedeok-Daero 989beon-gil, Yuseong-Gu, Daejeon 34057, Republic of Korea.
| | - Yeomin Yoon
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea.
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2
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Civan Çavuşoğlu F, Özçelik G, Özbek C, Özkara-Aydınoğlu Ş, Bayazit ŞS. Fe 3O 4 supported UiO-66 (Zr) metal-organic framework for removal of drug contaminants from water: fuzzy logic modeling approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:44337-44352. [PMID: 36692720 DOI: 10.1007/s11356-023-25378-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 01/13/2023] [Indexed: 01/25/2023]
Abstract
The increase in production and consumption of pharmaceuticals and personal care products causes environmental problems. In this study, naproxen and clofibric acid adsorption were studied using Fe3O4-supported UiO-66 (Zr) metal-organic framework (Mag-UiO-66). The adsorption processes were carried out in batch mode at pH value 3.0. The optimum adsorbent quantities, equilibrium periods, pseudo-first-order (PFO), pseudo-second-order (PSO), and intra-particles diffusion kinetic models were calculated. Non-linear Langmuir, Freundlich, Dubinin-Radushkevich (D-R), and Sips isotherm equations were applied to experimental data. Thermodynamic analyses of naproxen and clofibric acid adsorption were also carried out in this study. The Langmuir isotherm qm values were found as 14.15 mg/g for naproxen at 308 K and 41.87 mg/g for clofibric acid at 298 K. Both of the adsorption processes were exothermic. MISO (multi-input single-output) fuzzy logic models for removal of both naproxen and clofibric acid adsorptions were designed based on the experimental data to estimate the removal uptake values. It is noteworthy that the results obtained through designed fuzzy logic models matched well with the experimental data and the findings of this study emphasize the validity of designed fuzzy logic models.
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Affiliation(s)
- Ferda Civan Çavuşoğlu
- Department of Chemical Engineering, Faculty of Engineering & Architecture, Beykent University, Sarıyer, Istanbul, 34396, Turkey
| | - Gülsüm Özçelik
- Department of Chemical Engineering, Faculty of Engineering & Architecture, Beykent University, Sarıyer, Istanbul, 34396, Turkey
| | - Cengiz Özbek
- Department of Mechanical Engineering, Faculty of Engineering & Architecture, Beykent University, Sarıyer, Istanbul, 34396, Turkey
| | - Şeyma Özkara-Aydınoğlu
- Department of Chemical Engineering, Faculty of Engineering & Architecture, Beykent University, Sarıyer, Istanbul, 34396, Turkey
| | - Şahika Sena Bayazit
- Department of Chemical Engineering, Faculty of Engineering & Architecture, Beykent University, Sarıyer, Istanbul, 34396, Turkey.
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Sheikhian L, Jamalifard Y. Multi-walled carbon nanotube-based dispersive solid phase extraction with following back-extraction for HPLC/UV determination of Rosmarinic acid in lemon balm and Rosemary plant samples. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Retnam B, Balamirtham H, Aravamudan K. Maximizing Adsorption Involving Three Solutes on Enhanced Adsorbents Using the Mixture-Process Variable Design. ACS OMEGA 2022; 7:19561-19578. [PMID: 35721906 PMCID: PMC9202268 DOI: 10.1021/acsomega.2c01284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Unmodified (UN), acid-treated (AT) and microwave-acid-treated (MAT) activated carbons were optimized for their solute removal efficacies by adjusting feed mixture compositions and process conditions. Acetaminophen, benzotriazole, and caffeine were used either individually or as binary/ternary mixtures in this study. The process conditions considered were the pH, adsorbent dosage, and type of adsorbent. Experimental responses such as total adsorbent loading (q total) and total percentage removal (PRtotal) were fitted with empirical models that had high adjusted R 2 (>0.95), insignificant lack of fit (p-value > 0.22), and high model predictive R 2 (>0.93). Mixture compositions of the feed were found to interact significantly not only among themselves but with process variables as well. Hence, adsorption optimization must simultaneously consider mixture as well as process variables. The conventional response surface methodology for mixtures, termed as ridge analysis, optimizes mixture compositions at specified values of process variables. An improved steepest ascent method which considers mixture and process variables simultaneously was developed in this work. This could track the path of steepest ascent toward globally optimal settings, from any arbitrary starting point within the design space. For the chosen adsorbent, optimal settings for feed mixture compositions and pH were found to change along this steepest ascent path. The feed compositions, pH, and adsorbent dosage identified for maximum adsorbent utilization were usually quite different from those identified for maximum total percentage removal. When both these objectives were optimized together, the most favorable compromise solutions for q total and PRtotal were, respectively, 264.1 mg/g and 43.4% for UN, 294.9 mg/g and 52.5% for AT, and 336.6 mg/g and 55.9% for MAT.
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Affiliation(s)
- Bharathi
Ganesan Retnam
- Department
of Chemical Engineering, Indian Institute
of Technology Madras, Chennai 600036, India
- Department
of Chemical Engineering, KPR Institute of
Engineering and Technology, Coimbatore 641 407, India
| | - Hariharan Balamirtham
- Department
of Chemical Engineering, Indian Institute
of Technology Madras, Chennai 600036, India
| | - Kannan Aravamudan
- Department
of Chemical Engineering, Indian Institute
of Technology Madras, Chennai 600036, India
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Diniz V, Rath G, Rath S, Araújo LS, Cunha DGF. Competitive kinetics of adsorption onto activated carbon for emerging contaminants with contrasting physicochemical properties. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:42185-42200. [PMID: 34435291 DOI: 10.1007/s11356-021-16043-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
Activated carbon (AC) can be used for the removal of emerging contaminants (e.g., drugs) in water and wastewater treatment plants. In the present study, we investigated the performance of two ACs (from coconut shell and Pinnus sp.) in the adsorption of caffeine, carbamazepine, and ricobendazole considering the compounds separately and in combination in batch-scale experiments. The concentrations of the drugs were determined by a validated method using solid-phase extraction with on-line ultra-high performance liquid chromatography-tandem mass spectrometry. The most mesoporous AC provided higher drug removal. The kinetic data were described by the pseudo-second-order, Elovich, and Weber-Morris models, while the adsorption isotherms showed a better fit to the Freundlich model, indicative of multilayer adsorption. The Dubinin-Radushkevich model was used as a first approach to estimate the mean adsorption energy (E) and the results indicate that chemisorption governed the adsorption process, with E higher than 8 kJ mol-1. In the multicomponent assays, the adsorption of caffeine showed the greatest hindrance caused by the presence of other drugs. Multicomponent assays are fundamental to evaluate the potential adsorption capacity in real water treatment plants. Our study suggests that drugs with different structures and physicochemical properties may interact differently with ACs, especially in multicomponent solutions, with important implications for the design (e.g., volumes and areas of treatment plants) and operation (e.g., water residence time) of the treatment plants.
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Affiliation(s)
- Vinicius Diniz
- São Carlos School of Engineering, Hydraulics and Sanitation Department, University of São Paulo, São Carlos, SP, 13566-590, Brazil.
| | - Gabriela Rath
- Institute of Chemistry, University of Campinas, Campinas, SP, 13084-971, Brazil
| | - Susanne Rath
- Institute of Chemistry, University of Campinas, Campinas, SP, 13084-971, Brazil
| | - Larissa Sene Araújo
- São Carlos School of Engineering, Hydraulics and Sanitation Department, University of São Paulo, São Carlos, SP, 13566-590, Brazil
| | - Davi Gasparini Fernandes Cunha
- São Carlos School of Engineering, Hydraulics and Sanitation Department, University of São Paulo, São Carlos, SP, 13566-590, Brazil
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Amer A, Sayed GH, Ramadan RM, Rabie AM, Negm NA, Farag AA, Mohammed EA. Assessment of 3-amino-1H-1,2,4-triazole modified layered double hydroxide in effective remediation of heavy metal ions from aqueous environment. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Bensid N, Zerdoum R, Hattab Z, Boutaleb Y, Bououdina M. Intercalated organo-bentonite as efficient biosorbent for aromatic carboxylic acids from wastewater. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Quintero-Jaramillo JA, Carrero-Mantilla JI, Sanabria-González NR. A Review of Caffeine Adsorption Studies onto Various Types of Adsorbents. ScientificWorldJournal 2021; 2021:9998924. [PMID: 34335116 PMCID: PMC8315881 DOI: 10.1155/2021/9998924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/26/2021] [Accepted: 06/30/2021] [Indexed: 12/03/2022] Open
Abstract
A systematic literature review of publications from 2000 to 2020 was carried out to identify research trends on adsorbent materials for the removal of caffeine from aqueous solutions. Publications were retrieved from three databases (Scopus, Web of Science, and Google Scholar). Words "adsorption AND caffeine" were examined into titles, abstracts, and keywords. A brief bibliometric analysis was performed with emphasis on the type of publication and of most cited articles. Materials for the removal of caffeine were classified according to the type of material into three main groups: organic, inorganic, and composites, each of them subdivided into different subgroups consistent with their origin or production. Tables resume for each subgroup of adsorbents the key information: specific surface area, dose, pH, maximum adsorption capacity, and isotherm models for the removal of caffeine. The highest adsorption capacities were achieved by organic adsorbents, specifically those with granular activated carbon (1961.3 mg/g) and grape stalk activated carbon (916.7 mg/g). Phenyl-phosphate-based porous organic polymer (301 mg/g), natural sandy loam sediment (221.2 mg/g), composites of MCM-48 encapsulated graphene oxide (153.8 mg/g), and organically modified clay (143.7 mg/g) showed adsorption capacities lower than those of activated carbons. In some activated carbons, a relation between the specific surface area (SSA) and the maximum adsorption capacity (Q max) was found.
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Affiliation(s)
- Javier Andrés Quintero-Jaramillo
- Departamento de Ingeniería Química, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, km 7 vía al Aeropuerto, AA 127, Manizales, Colombia
| | - Javier Ignacio Carrero-Mantilla
- Departamento de Ingeniería Química, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, km 7 vía al Aeropuerto, AA 127, Manizales, Colombia
| | - Nancy Rocío Sanabria-González
- Departamento de Ingeniería Química, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, km 7 vía al Aeropuerto, AA 127, Manizales, Colombia
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Development of a novel 2D Ni-MOF derived NiO@C nanosheet arrays modified Ti/TiO2NTs/PbO2 electrode for efficient electrochemical degradation of salicylic acid wastewater. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118368] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Ait Hamoudi S, Brahimi M, Boucha M, Hamdi B, Arrar J. Removal of paracetamol from aqueous solution by containment composites. OPEN CHEM 2021. [DOI: 10.1515/chem-2020-0188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Storage of wastes leads to severe problems of water pollution and neighboring matrices due to the infiltration of landfill leachate. Uncontrolled landfill and waste storage can lead to groundwater pollution, which can lead to serious health problems for the living. Engineered barriers can be a solution to these pollution problems. The purpose of this study was to develop novel composite materials – clay-based, activated carbon, cement, and PVA polymer. These composites were intended for the containment of waste in landfill. The clay (70–80%) and activated carbon (5–15%) contents were varied to obtain three different geomaterials – GM1, GM2, and GM3. In the preparation of GM3, the content of activated carbon used was higher than for GM1 and GM2, paracetamol removal capacity tested by adsorption, experiments were influenced by parameters such as the adsorbent mass, the initial solute concentration, contact time, temperature, and pH effect. The parameter of initial paracetamol concentrations was studied using a range of 50, 100, and 150 mg L−1. For a GM3 mass of 80 mg, the adsorbed amount is 14.67 mg g−1, and the contact time is 180 minutes. This study revealed that composites are efficient for the treatment of landfill leachates.
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Affiliation(s)
- Souhila Ait Hamoudi
- Department of Environmental Chemistry, Scientific and Technical Research Center in Physico-Chemical Analysis (CRAPC) , Post box 384, Headquarters ex-Pasna Industrial Zone , Bou-Ismail , 42004, Tipaza , Algeria
- Department of Physical and Theoretical Chemistry, Laboratory LPCEMAE, Faculty of Chemistry, University of Science and Technology Houari Boumediene (USTHB) , Post box 32 el Alia , Bab Ezzouar , Algiers , Algeria
| | - Meriem Brahimi
- Department of Environmental Engineering National Polytechnic School , 10 street Oudek brothers , El-Harrach , 16200, Algiers , Algeria
| | - Mouad Boucha
- Department of Environmental Engineering National Polytechnic School , 10 street Oudek brothers , El-Harrach , 16200, Algiers , Algeria
| | - Boualem Hamdi
- Department of Physical and Theoretical Chemistry, Laboratory LPCEMAE, Faculty of Chemistry, University of Science and Technology Houari Boumediene (USTHB) , Post box 32 el Alia , Bab Ezzouar , Algiers , Algeria
| | - Jazia Arrar
- Department of Environmental Engineering National Polytechnic School , 10 street Oudek brothers , El-Harrach , 16200, Algiers , Algeria
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Cardona Y, Vicente MA, Korili SA, Gil A. Progress and perspectives for the use of pillared clays as adsorbents for organic compounds in aqueous solution. REV CHEM ENG 2020. [DOI: 10.1515/revce-2020-0015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The world is faced with several problems as regards water pollution. This is due to several factors, including the discharge of effluents into the environment with no prior treatment. This wastewater, therefore, contains significant levels of pollutants, including numerous toxic organic contaminants and others that are similarly undesirable. Several studies have attempted to find ways of removing wastewater contaminants using pillared interlayered clays (PILC) as adsorbents. In this work, we present a summary of those studies that have used PILC as adsorbents for the removal of organic compounds from aqueous solutions while simultaneously illustrating their potential for this purpose. A general overview is provided so that the reader can acquire a basic understanding of the PILC and their modified counterparts that have been used, and some of the characteristics that can directly affect their adsorption behavior, especially their textural and surface properties.
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Affiliation(s)
- Yaneth Cardona
- INAMAT^2-Science Department , Public University of Navarra , Los Acebos Building , 31006 - Pamplona , Spain
| | - Miguel Angel Vicente
- GIR-QUESCAT, Inorganic Chemistry Department , University of Salamanca , E-37008 Salamanca , Spain
| | - Sophia A. Korili
- INAMAT^2-Science Department , Public University of Navarra , Los Acebos Building , 31006 - Pamplona , Spain
| | - Antonio Gil
- INAMAT^2-Science Department , Public University of Navarra , Los Acebos Building , 31006 - Pamplona , Spain
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Wang W, Qi M, Jia X, Jin J, Zhou Q, Zhang M, Zhou W, Li A. Differential adsorption of zwitterionic PPCPs by multifunctional resins: The influence of the hydrophobicity and electrostatic potential of PPCPs. CHEMOSPHERE 2020; 241:125023. [PMID: 31606573 DOI: 10.1016/j.chemosphere.2019.125023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/09/2019] [Accepted: 09/30/2019] [Indexed: 05/19/2023]
Abstract
Zwitterionic pharmaceuticals and personal care products can interact with adsorbents in different ways due to their various properties. In this work, the effects of hydrophobicity and electrostatic potential were explored through the adsorption of ciprofloxacin (CPX) and tetracycline (TC) onto multifunctional resins. Nonionic surface interaction was dominant for the adsorption on high-surface-area resin GMA10. Thereinto, hydrophobic and π-π interaction dominant for hydrophobic CPX and hydrophilic TC, respectively. Electrostatic interaction played an important role for high-anion-exchange-capacity resin GMA90. Upon their adsorption onto GMA50 resin, the relatively separated positive and negative electrostatic potentials of CPX+- due to the greater distance (∼12.33 Å) between the anionic and cationic groups led to electrostatic attraction and interaction (Ea = 8.64 ± 0.31 kJ/mol) and the vertical orientation of molecule on the surface. However, TC+-0 displayed nonionic surface interaction (Ea = 7.96 ± 0.14 kJ/mol) due to its relatively neutral electrostatic potential arising from the adjacent functional groups. Hence, the surface of GMA50 was covered with TC+-0 molecules adsorbed parallel to the surface, thereby restricting TC+-0 adsorption. Coexisted with monovalent salts, CPX adsorption was facilitated due to the salting-out effect. By contrast, the salting-out effect for TC was extremely weak, and TC adsorption was restrained due to the competitive adsorption of salts.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China; Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, PR China
| | - Meng Qi
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, PR China
| | - Xiaorui Jia
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Jing Jin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Mancheng Zhang
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, PR China.
| | - Weiwei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
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Jaria G, Calisto V, Silva CP, Gil MV, Otero M, Esteves VI. Fixed-bed performance of a waste-derived granular activated carbon for the removal of micropollutants from municipal wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 683:699-708. [PMID: 31150890 DOI: 10.1016/j.scitotenv.2019.05.198] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
This work aimed to assess the fixed-bed adsorptive performance of a primary paper mill sludge-based granular activated carbon (PSA-PA) for the removal of pharmaceuticals, namely carbamazepine (CBZ), sulfamethoxazole (SMX) and paroxetine (PAR), from water. The breakthrough curves corresponding to the adsorption of CBZ at different flow rates and in two different matrices (distilled and municipal wastewater) were firstly determined, which allowed to select the most favorable flow rate for the subsequent experiments. The fixed-bed adsorption of CBZ, SMX and PAR from single and ternary solutions in wastewater showed that the performance of PSA-PA was different for each pharmaceutical. According to the obtained breakthrough curves, the poorest bed adsorption capacity, either from single or ternary solution, was observed for SMX, which may be related with electrostatic repulsion at the pH of the wastewater used (pH ~ 7.3-7.7). Also, the bed adsorption capacity of PSA-PA for SMX, in the ternary solution, was notoriously lower compared to the single solution, while it slightly decreased for CBZ and even increased for PAR. The regeneration studies showed that the CBZ adsorption capacity of the PSA-PA bed decreased about 38 and 71% after the first and the second thermal regeneration stages, respectively. This decline was comparatively larger than the corresponding reduction of the PSA-PA specific surface area (SBET), which decreased only 5 and 25% for the first and second regeneration stages, respectively, and pointed to the lack of viability of more than one regeneration stage.
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Affiliation(s)
- Guilaine Jaria
- Department of Chemistry, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Vânia Calisto
- Department of Chemistry, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Carla Patrícia Silva
- Department of Chemistry, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - María Victoria Gil
- Instituto Nacional del Carbón, INCAR-CSIC, Calle Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - Marta Otero
- Department of Environment and Planning, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Department of Chemistry, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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Gil A, Taoufik N, García AM, Korili SA. Comparative removal of emerging contaminants from aqueous solution by adsorption on an activated carbon. ENVIRONMENTAL TECHNOLOGY 2019; 40:3017-3030. [PMID: 29634434 DOI: 10.1080/09593330.2018.1464066] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
Batch sorption experiments were performed to study the adsorption of six emerging pollutants from aqueous solutions using a commercial granular activated carbon as adsorbent. Caffeine, clofibric acid, diclofenac, gallic acid, ibuprofen and salicylic acid were selected as representative contaminants. The activated carbon was characterized by nitrogen adsorption at 77 K, and through the determination of point of zero charge. The effects of several operational parameters, such as pH, initial concentration of organic molecules, mass of adsorbent and contact time, on the sorption behaviour were evaluated. The contact time to attain equilibrium for maximum adsorption was found to be 40 min. The kinetic data were correlated to several adsorption models, and the adsorption mechanism found to follow pseudo-second-order and intraparticle-diffusion models with external mass transfer predominating in the first 15 min of the experiment. The equilibrium adsorption data were analysed using the Freundlich, Langmuir and Toth isotherm equation models. The similar chemical structure and molecular weight of the organic pollutants studied to make the adsorption capacity of the activated carbon used very similar for all the molecules.
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Affiliation(s)
- A Gil
- Department of Applied Chemistry, Public University of Navarra , Pamplona , Spain
- Institute for Advanced Materials-INAMAT, Public University of Navarra , Pamplona , Spain
| | - N Taoufik
- Department of Applied Chemistry, Public University of Navarra , Pamplona , Spain
| | - A M García
- Department of Applied Chemistry, Public University of Navarra , Pamplona , Spain
| | - S A Korili
- Department of Applied Chemistry, Public University of Navarra , Pamplona , Spain
- Institute for Advanced Materials-INAMAT, Public University of Navarra , Pamplona , Spain
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15
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Savun-Hekimoğlu B, Ince NH. Sonochemical and sonocatalytic destruction of methylparaben using raw, modified and SDS-intercalated particles of a natural clay mineral. ULTRASONICS SONOCHEMISTRY 2019; 54:233-240. [PMID: 30765215 DOI: 10.1016/j.ultsonch.2019.01.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/07/2019] [Accepted: 01/26/2019] [Indexed: 05/09/2023]
Abstract
The first part of the study is about the degradation of a common PPCP-methylparaben by high-frequency ultrasound to highlight the operation parameters, the reaction sites, the oxidation byproducts and the role of OH radicals. The second part covers the catalytic effect of a highly abundant and cost-effective clay mineral-sepiolite, and investigates the role of surface modification and SDS-composites of the clay in improving the efficiency of the degradation reactions. It was found that the compound (C0 = 10 mg L-1) was readily and totally decomposed by 30-min sonication at neutral pH, producing phenolic and aliphatic intermediates, but with insignificant mineralization. The major reaction site was the bubble-liquid interface, where the reactions were governed by OH radical attack. Modification of the sepiolite surface by pre-sonication in an ultrasonic bath improved the rate of reaction and the degree of TOC decay. Further modification by the synthesis of 20-min sonicated (200 kHz bath) SDS-intercalates of the clay was found to yield significant enhancement in the rate of target compound decomposition and the fraction of TOC decay, provided that the reaction was operated at acidic pH.
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Affiliation(s)
| | - Nilsun H Ince
- Institute of Environmental Sciences, 34342 Boğaziçi University, Istanbul, Turkey.
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Şahin S, Elhussein EAA, Bilgin M, Kurtulbaş E, Bayazit ŞS. Investigation of extractive interaction between ionic liquids and carbamazepine. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Vijayanandan A, Philip L, Bhallamudi SM. Analysis of Breakthrough Behaviors of Hydrophilic and Hydrophobic Pharmaceuticals in a Novel Clay Composite Adsorbent Column in the Presence and Absence of Biofilm. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arya Vijayanandan
- Department of Civil Engineering, Indian Institute of Technology, Madras, India 600036
| | - Ligy Philip
- Department of Civil Engineering, Indian Institute of Technology, Madras, India 600036
| | - S. Murty Bhallamudi
- Department of Civil Engineering, Indian Institute of Technology, Madras, India 600036
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18
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Li X, Liu H, Jia X, Li G, An T, Gao Y. Novel approach for removing brominated flame retardant from aquatic environments using Cu/Fe-based metal-organic frameworks: A case of hexabromocyclododecane (HBCD). THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 621:1533-1541. [PMID: 29054625 DOI: 10.1016/j.scitotenv.2017.10.075] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/07/2017] [Accepted: 10/09/2017] [Indexed: 05/24/2023]
Abstract
Cu and Fe based metal-organic frameworks (Cu-BTC and Fe-BTC) were synthesized via a simple solvothermal method and innovatively utilized to remove a typical nonionic brominated flame retardant, hexabromocyclododecane (HBCD), from aquatic environment. Results show that over 80% of HBCD was removed by Cu-BTC within 5h, which is 1.3 times higher than removal by Fe-BTC. Thermodynamic analysis confirms spontaneous adsorption of HBCD onto the metal-organic frameworks (MOFs). Furthermore, the Gibbs free energy of Cu-BTC (-9.11kJ/mol) is more negative than that of Fe-BTC (-5.04kJ/mol). Both adsorption isotherms of HBCD onto Cu-BTC and Fe-BTC followed the Langmuir model, indicating a typical monomolecular-layer adsorption mechanism. In addition, the water stability test of these MOFs shows that the collapse of the Cu-BTC crystal structure is significantly hindered in the aquatic environment due to adsorption of the hydrophobic HBCD. The proposed adsorption mechanism includes van der Waals and hydrophobic interactions. These findings demonstrate that Cu/Fe-BTC are promising adsorbents for the removal of hydrophobic organic pollutants from aquatic environments, and may further improve the understanding of MOF materials for environmental applications.
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Affiliation(s)
- Xiang Li
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Hongli Liu
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaoshan Jia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Guiying Li
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Taicheng An
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Yanpeng Gao
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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Ortiz-Martínez K, Vargas-Valentín DA, Hernández-Maldonado AJ. Adsorption of Contaminants of Emerging Concern from Aqueous Solutions using Cu2+ Amino Grafted SBA-15 Mesoporous Silica: Multicomponent and Metabolites Adsorption. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05168] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Krisiam Ortiz-Martínez
- Department of Chemical Engineering, University of Puerto Rico—Mayagüez Campus, Mayagüez, Puerto Rico 00681-9000, United States
| | - Doris A. Vargas-Valentín
- Department of Chemical Engineering, University of Puerto Rico—Mayagüez Campus, Mayagüez, Puerto Rico 00681-9000, United States
| | - Arturo J. Hernández-Maldonado
- Department of Chemical Engineering, University of Puerto Rico—Mayagüez Campus, Mayagüez, Puerto Rico 00681-9000, United States
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Yamamoto K, Shiono T, Matsui Y, Yoneda M. Interaction of caffeine with montmorillonite. PARTICULATE SCIENCE AND TECHNOLOGY 2018. [DOI: 10.1080/02726351.2017.1372825] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- K. Yamamoto
- Research Laboratories for Beverage Technologies, Research and Development Division, Kirin Company, Ltd, Yokohama, Japan
| | - T. Shiono
- Research Laboratories for Beverage Technologies, Research and Development Division, Kirin Company, Ltd, Yokohama, Japan
| | - Y. Matsui
- Department of Environmental Engineering, Kyoto University Graduate School of Engineering, Kyoto, Japan
| | - M. Yoneda
- Department of Environmental Engineering, Kyoto University Graduate School of Engineering, Kyoto, Japan
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Tan L, Shuang C, Wang Y, Wang J, Su Y, Li A. Effect of pore structure on the removal of clofibric acid by magnetic anion exchange resin. CHEMOSPHERE 2018; 191:817-824. [PMID: 29080542 DOI: 10.1016/j.chemosphere.2017.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 06/14/2017] [Accepted: 10/01/2017] [Indexed: 06/07/2023]
Abstract
The effect of pore structure of resin on clofibric acid (CA) adsorption behavior was investigated by using magnetic anion exchange resins (ND-1, ND-2, ND-3) with increasing pore diameter by 11.68, 15.37, 24.94 nm. Resin with larger pores showed faster adsorption rates and a higher adsorption capacity because the more opened tunnels provided by larger pores benefit the CA diffusion into the resin matrix. The ion exchange by the electrostatic interactions between Cl-type resin and CA resulted in chloride releasing to the solution, and the ratio of released chloride to CA adsorption amount decreased from 0.90 to 0.65 for ND-1, ND-2 and ND-3, indicating that non-electrostatic interactions obtain a larger proportional part of the adsorption into the pores. Co-existing inorganic anions and organic acids reduced the CA adsorption amounts by the competition effect of electrostatic interaction, whereas resins with more opened pore structures weakened the negative influence on CA adsorption because of the existence of non-electrostatic interactions. 85.2% and 65.1% adsorption amounts decrease are calculated for resin ND-1 and ND-3 by the negative influence of 1 mmol L-1 NaCl. This weaken effect of organic acid is generally depends on its hydrophobicity (Log Kow) for carboxylic acid and its ionization degree (pKb) for sulfonic acid. The resins could be reused with the slightly decreases by 1.9%, 3.2% and 5.4% after 7 cycles of regeneration, respectively for ND-1, ND-2 and ND-3, suggesting the ion exchange resin with larger pores are against its reuse by the brine solution regeneration.
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Affiliation(s)
- Liang Tan
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Chendong Shuang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China.
| | - Yunshu Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Jun Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Yihong Su
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
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Yamamoto K, Shiono T, Yoshimura R, Matsui Y, Yoneda M. Influence of hydrophilicity on adsorption of caffeine onto montmorillonite. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617417735480] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Some types of montmorillonite containing different interlayer ions were prepared and the changes in the interlayer spacings, the hydrophilicity, and the characteristics of adsorption of caffeine in solution were observed. Ion exchange treatments were performed using Li, Na, K, Rb, Cs, Mg, Ca, Sr, or Ba. As a result, Li- and Na-type montmorillonite showed larger interlayer distance (1.31–1.53 nm), than K, Rb, and Cs-type montmorillonite (1.23–1.26 nm). In the measurement of hydrophilicity using a pulse NMR-based particle interface analyzer, Li- and Na-type montmorillonite showed higher hydrophilicity. In addition, KLang, which indicates the interaction with caffeine, was 0.25–0.32 l/mmol, which is lower than K-, Rb-, and Cs-type montmorillonite (1.14–1.60 l/mmol). It is possible that adsorption of water molecules inhibits caffeine from adsorbing. Because of the difficulty of exchange between caffeine and water molecules in interlayer of the Li- and Na-type montmorillonite, the interaction with caffeine decreased. Alternatively, another possibility is that when highly hydrophilic montmorillonite retains many water molecules, the caffeine adsorption sites are blocked by water molecules. In either case, hydrophilicity has a large influence on the adsorption of caffeine onto montmorillonite.
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Affiliation(s)
- Kenichiro Yamamoto
- Kirin Company, Ltd, Japan; Kyoto University Graduate School of Engineering, Japan
| | | | | | - Yasuto Matsui
- Kyoto University Graduate School of Engineering, Japan
| | - Minoru Yoneda
- Kyoto University Graduate School of Engineering, Japan
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24
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Tan K, Hameed B. Insight into the adsorption kinetics models for the removal of contaminants from aqueous solutions. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.01.024] [Citation(s) in RCA: 384] [Impact Index Per Article: 54.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Zaki A, Ahmad M, El-Rahman KA. Sorption characteristics of a landfill clay soil as a retardation barrier of some heavy metals. APPLIED CLAY SCIENCE 2017; 135:150-167. [DOI: 10.1016/j.clay.2016.09.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Noguera-Oviedo K, Aga DS. Lessons learned from more than two decades of research on emerging contaminants in the environment. JOURNAL OF HAZARDOUS MATERIALS 2016; 316:242-51. [PMID: 27241399 DOI: 10.1016/j.jhazmat.2016.04.058] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 04/21/2016] [Accepted: 04/22/2016] [Indexed: 05/25/2023]
Abstract
In the last twenty years, thousands of research papers covering different aspects of emerging contaminants have been published, ranging from environmental occurrence to treatment and ecological effects. Emerging contaminants are environmental pollutants that have been investigated widely only in the last two decades and include anthropogenic and naturally occurring chemicals such as pharmaceuticals and personal care products and their metabolites, illicit drugs, engineered nanomaterials, and antibiotic resistance genes. The advancement in our knowledge on emerging contaminants has been the result of the appearance of highly sensitive and powerful analytical instrumentation that rapidly developed, allowing identification and trace quantification of unknown contaminants in complex environmental matrices. High efficiency chromatographic separations coupled to high-resolution mass spectrometers have become more common in environmental laboratories and are the pillars of environmental research, increasing our awareness and understanding of the presence of emerging contaminants in the environment, their transformation and fate, and the complex ecological consequences that they pose on exposed biological systems. This introductory paper for the Virtual Thematic Issue on Emerging Contaminants presents a brief literature overview on key research milestones in the area of emerging contaminants, focusing on pharmaceuticals and personal care products and endocrine disrupting compounds, and highlighting selected research papers previously published in the Journal of Hazardous Materials during the period of January 2012 to December 2015.
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Affiliation(s)
- Katia Noguera-Oviedo
- Chemistry Department, University at Buffalo, The State University of New York, Buffalo, NY 14260, United States
| | - Diana S Aga
- Chemistry Department, University at Buffalo, The State University of New York, Buffalo, NY 14260, United States.
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Lu X, Shao Y, Gao N, Chen J, Zhang Y, Wang Q, Lu Y. Adsorption and removal of clofibric acid and diclofenac from water with MIEX resin. CHEMOSPHERE 2016; 161:400-411. [PMID: 27448753 DOI: 10.1016/j.chemosphere.2016.07.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/05/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
This study demonstrates the use of MIEX resin as an efficient adsorbent for the removal of clofibric acid (CA) and diclofenac (DCF). The adsorption performance of CA and DCF are investigated by a batch mode in single-component or bi-component adsorption system. Various factors influencing the adsorption of CA and DCF, including initial concentration, contact time, adsorbent dosage, initial solution pH, agitation speed, natural organic matter and coexistent anions are studied. The Langmuir model can well describe CA adsorption in single-component system, while the Freundlich model gives better fitting in bi-component system. The DCF adsorption can be well fitted by the Freundlich model in both systems. Thermodynamic analyses show that the adsorption of CA and DCF is an endothermic (ΔH(o) > 0), entropy driven (ΔS(o) > 0) process and more randomness exists in the DCF adsorption process. The values of Gibbs free energy (ΔG(o) < 0) indicate the adsorption of DCF is spontaneous but nonspontaneous (ΔG(o) > 0) for CA adsorption. The kinetic data suggest the adsorption of CA and DCF follow the pseudo-first-order model in both systems and the intra-particle is not the unique rate-limiting step. The adsorption process is controlled simultaneously by external mass transfer and surface diffusion according to the surface diffusion modified Biot number (Bis) ranging from 1.06 to 26.15. Moreover, the possible removal mechanism for CA and DCF is respectively proposed based on the ion exchange stoichiometry.
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Affiliation(s)
- Xian Lu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Yisheng Shao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; China Academy of Urban Planning & Design, Beijing, China.
| | - Naiyun Gao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Juxiang Chen
- College of Architecture and Civil Engineering, Xinjiang University, Urumqi, China
| | - Yansen Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Qiongfang Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Yuqi Lu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
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Ortiz-Martínez K, Reddy P, Cabrera-Lafaurie WA, Román FR, Hernández-Maldonado AJ. Single and multi-component adsorptive removal of bisphenol A and 2,4-dichlorophenol from aqueous solutions with transition metal modified inorganic-organic pillared clay composites: Effect of pH and presence of humic acid. JOURNAL OF HAZARDOUS MATERIALS 2016; 312:262-271. [PMID: 27037481 DOI: 10.1016/j.jhazmat.2016.03.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/15/2016] [Accepted: 03/25/2016] [Indexed: 06/05/2023]
Abstract
Pillared clay based composites containing transition metals and a surfactant, namely MAlOr-NaBt (Bt=bentonite; Or=surfactant; M=Ni(2+), Cu(2+)or Co(2+)), were prepared to study selectivity and capacity toward single and multiple-component adsorption of bisphenol A (BPA) and 2,4-diclorophenol (DCP) from water. Tests were also performed to account for the presence of natural organic matter in the form of humic acid (HA). Equilibrium adsorption capacities for single components increased as follows: NaBt<Al-NaBt<AlOr-NaBt<MAlOr-NaBt. The observed equilibrium loadings were ca. 5 and 3mgg(-1) for BPA and DCP, respectively, at neutral pH conditions and ambient temperature, representing an ordered of magnitude increase over the unmodified pillared clay capacities. Inclusion of the transition metal brought an increase of nearly two-fold in adsorption capacity over the materials modified only with surfactant. The MAlOr-NaBt adsorbents displayed remarkable selectivity for BPA. Multi-component fixed-bed tests, however, revealed competition between the adsorbates, with the exception of the CuAlOr-NaBt beds. Inclusion of HA, surprisingly, enhanced the phenols adsorption capacity. Preliminary regeneration tests suggested that the adsorbent capacity can be recovered via thermal treatment or by washing with alkaline solutions. The former strategy, however, requires surfactant replenishment. More complex schemes would be needed to deal with absorbed HA.
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Affiliation(s)
- Krisiam Ortiz-Martínez
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico
| | - Pratap Reddy
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico
| | - Wilman A Cabrera-Lafaurie
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico
| | - Félix R Román
- Department of Chemistry, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico
| | - Arturo J Hernández-Maldonado
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez Campus, Mayagüez 00681-9000, Puerto Rico.
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Marçal L, de Faria EH, Nassar EJ, Trujillano R, Martín N, Vicente MA, Rives V, Gil A, Korili SA, Ciuffi KJ. Organically Modified Saponites: SAXS Study of Swelling and Application in Caffeine Removal. ACS APPLIED MATERIALS & INTERFACES 2015; 7:10853-10862. [PMID: 25938521 DOI: 10.1021/acsami.5b01894] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study aimed to assess the capacity of saponite modified with n-hexadecyltrimethylammonium bromide (CTAB) and/or 3-aminopropyltriethoxysilane (APTS) to adsorb and remove caffeine from aqueous solutions. Powder X-ray diffraction (PXRD) revealed increased basal spacing in the modified saponites. Small-angle X-ray scattering (SAXS) confirmed the PXRD results; it also showed how the different clay layers were stacked and provided information on the swelling of natural saponite and of the saponites functionalized with CTAB and/or APTS. Thermal analyses, infrared spectroscopy, scanning electron microscopy, element chemical analysis, and textural analyses confirmed functionalization of the natural saponite. The maximum adsorption capacity at equilibrium was 80.54 mg/g, indicating that the saponite modified with 3-aminopropyltriethoxysilane constitutes an efficient and suitable caffeine adsorbent.
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Affiliation(s)
- Liziane Marçal
- †Universidade de Franca, Avenida Dr. Armando Salles Oliveira, Parque Universitário, 201, 14404-600, Franca/SP, Brazil
| | - Emerson H de Faria
- †Universidade de Franca, Avenida Dr. Armando Salles Oliveira, Parque Universitário, 201, 14404-600, Franca/SP, Brazil
| | - Eduardo J Nassar
- †Universidade de Franca, Avenida Dr. Armando Salles Oliveira, Parque Universitário, 201, 14404-600, Franca/SP, Brazil
| | - Raquel Trujillano
- ‡GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Nuria Martín
- ‡GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Miguel A Vicente
- ‡GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Vicente Rives
- ‡GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Antonio Gil
- £Departamento de Química Aplicada, Universidad Pública de Navarra, 31006 Pamplona, Spain
| | - Sophia A Korili
- £Departamento de Química Aplicada, Universidad Pública de Navarra, 31006 Pamplona, Spain
| | - Katia J Ciuffi
- †Universidade de Franca, Avenida Dr. Armando Salles Oliveira, Parque Universitário, 201, 14404-600, Franca/SP, Brazil
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