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Lee JW, Han J, Choi YK, Park S, Lee SH. Reswellable alginate/activated carbon/carboxymethyl cellulose hydrogel beads for ibuprofen adsorption from aqueous solutions. Int J Biol Macromol 2023; 249:126053. [PMID: 37517753 DOI: 10.1016/j.ijbiomac.2023.126053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/17/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
In this study, alginate (Alg) composite beads were prepared by blending with activated carbon (AC) to enhance adsorption capacity for ibuprofen and carboxymethyl cellulose (CMC) to create a reswellable hydrogel. The dried Alg/AC/CMC composite beads could be recovered to sizes and morphologies similar to the initial hydrogel states via a simple reswelling process; however, the dried Alg/AC composite beads without CMC could not be recovered to the initial hydrogel state. Following the reswelling process, the dried Alg/AC/CMC beads demonstrated an 86 % recovery (qe = 34.0 mg/g) in the adsorption capacity for ibuprofen compared to the initial hydrogel beads (qe = 39.6). In contrast, the reswelled Alg/AC beads exhibited only 18 % (qe = 8.6) of the initial adsorption capacity (qe = 48.1). We elucidated the effects of the substitution degree of CMC, AC content, and solution pH on the reswelling property and ibuprofen adsorption capacity of the Alg/AC/CMC composite beads. The adsorption kinetics and isotherms of the prepared composite beads in the hydrogel and reswelled states fit the pseudo-second-order and Langmuir models, respectively. Furthermore, the reswelled Alg composite beads exhibited high adsorption capacity (>93 %) after 10 cycles. Taken together, our findings indicate that the Alg/AC/CMC composite beads can be used as adsorbents without a considerable decrease in adsorption performance by reswelling the beads with distilled water after long-term storage in a dry state.
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Affiliation(s)
- Jeong Woo Lee
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jiwoo Han
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yong-Keun Choi
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; R&D Team, ChoiLab Inc., Seoul 01811, Republic of Korea
| | - Saerom Park
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; R&D Team, ChoiLab Inc., Seoul 01811, Republic of Korea.
| | - Sang Hyun Lee
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea.
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Metal-organic frameworks for the adsorptive removal of pharmaceutically active compounds (PhACs): Comparison to activated carbon. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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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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Alves Pimenta JA, Francisco Fukumoto AA, Madeira TB, Alvarez Mendez MO, Nixdorf SL, Cava CE, Kuroda EK. Adsorbent selection for pesticides removal from drinking water. ENVIRONMENTAL TECHNOLOGY 2022; 43:1672-1683. [PMID: 33151819 DOI: 10.1080/09593330.2020.1847203] [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: 06/30/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
Pesticides present in water resources can cause adverse health effects even in low concentrations, due to their bio-accumulative character. Therefore, the challenge for drinking water production increases, due to the limitations of conventional water treatment technologies in the removal of small molecular weight dissolved compounds. This work aimed to provide technical and scientific support for the selection of pulverized activated carbon - PACs, granular activated carbon - GACs, and carbon nanotubes - CNT concerning atrazine - ATZ, simazine - SMZ, and diuron - DIU adsorption for application in water treatment plants, considering two forms of application commercial product - CP and analytical standard - SD. These forms of application were tested aiming to verify the influence of the purity of the products used in experiments on the adsorption efficiency. It was possible to verify the adsorption efficiencies were not guided only by the characteristics of the adsorptive materials used, and that the selection should not be carried out only based on the, specific superficial area - BET size and distribution of specific pore volume. The isotherms demonstrated that the parameter Kf associated with the results of the selection experiment can be considered an alternative technical tool of simple application and sufficient for this purpose. Also, the capacity of activated carbons - ACs and nanomaterials - NMs were affected by the application of the compounds, highlighting the importance of using commercial product - CP in scientific research and technical investigations.Hightlights The pesticides efficiency removal was affected due to the forms of application, SD and CP;The parameters IN and MBI were not decisive in the selection of the activated carbon;The main adsorption mechanism in all the materials was chemical;GAC was the most efficient adsorbent in the removal of the pesticides;An adequate adsorbent selection is crucial for satisfactory removal of pesticides in water.
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Affiliation(s)
| | | | | | | | - Suzana Lucy Nixdorf
- Department of Chemistry, State University of Londrina - Center for Exact Sciences
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Sandoval-González A, Robles I, Pineda-Arellano CA, Martínez-Sánchez C. Removal of anti-inflammatory drugs using activated carbon from agro-industrial origin: current advances in kinetics, isotherms, and thermodynamic studies. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022; 19:4017-4033. [PMCID: PMC9162900 DOI: 10.1007/s13738-022-02588-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 05/08/2022] [Indexed: 08/09/2023]
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) are highly consumed around the world and consequently found as emerging pollutants in water; they are found in concentrations up to µg L−1 making their removal a priority. In this matter, adsorption is an efficient alternative for drug removal, so using activated carbon (AC) as an adsorbent is a highly explored subject. The current interest is to obtain AC from waste, for example, those of agro-industrial origin, reducing this way the overall costs of the process. Although information regarding the use of AC from agro-industrial origin in the removal of NSAIDs is limited, an exclusive compilation is required to understand the state of the art to date. This work aims to update information related to the adsorption of ibuprofen, diclofenac, and naproxen on agro-industrial AC, and it is focused on the period 2016–2021. It highlights the characteristics of agro-industrial AC responsible for efficient adsorption. Recent adsorption studies, including kinetics, isotherms, and thermodynamics, are analyzed and compared. Progress on removing NSAIDs from real wastewater is also presented and finally proposed adsorption mechanisms and costs related to these removal processes.
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Affiliation(s)
- Antonia Sandoval-González
- CONACYT-Centro de Investigación y Desarrollo Tecnológico en Electroquímica, CIDETEQ, 76703 Pedro Escobedo, Querétaro, México
| | - Irma Robles
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, CIDETEQ, 76703 Pedro Escobedo, Querétaro, México
| | - Carlos A. Pineda-Arellano
- CONACYT-Centro de Investigaciones en Óptica, A.C., Unidad Aguascalientes, Prol. Constitución 607, Fracc. Reserva Loma Bonita, 20200 Aguascalientes, Aguascalientes México
| | - Carolina Martínez-Sánchez
- CONACYT-Centro de Investigación y Desarrollo Tecnológico en Electroquímica, CIDETEQ, 76703 Pedro Escobedo, Querétaro, México
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Krakkó D, Illés Á, Licul-Kucera V, Dávid B, Dobosy P, Pogonyi A, Demeter A, Mihucz VG, Dóbé S, Záray G. Application of (V)UV/O 3 technology for post-treatment of biologically treated wastewater: A pilot-scale study. CHEMOSPHERE 2021; 275:130080. [PMID: 33667764 DOI: 10.1016/j.chemosphere.2021.130080] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/24/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
For the first time, high energy VUV photons and generation of O3 by (V)UV lamps were applied together for removal of active pharmaceutical ingredients (APIs) from biologically treated wastewater (BTWW) in pilot-scale. The core of the pilot container unit was a photoreactor assembly consisting of six photoreactors, each containing a low-pressure Hg lamp (UV dose of 1.2 J/cm2 and 6.6 J/cm2 at 185 nm and 254 nm, respectively). BTWW was irradiated (4.75 min residence time) by (V)UV light in presence of in situ photochemically generated O3 from coolant air of the lamps. Experiments were conducted at the site of two wastewater treatment plants. Out of seven target APIs (namely carbamazepine, ciprofloxacin, clarithromycin, diclofenac, metoprolol, sitagliptin, and sulfamethoxazole), 80-100% removal was accomplished for five and 40-80% for two compounds. Two degradation products of carbamazepine were detected. Degradation products of other target compounds were not found. The applied O3 dose was 30-45 μg O3/mg dissolved organic carbon. Inactivation of up to log-4.8, log-4.5 and log-3.8 could be achieved for total coliform, Escherichia coli and Enterococcus faecalis, respectively. SOS Chromotest indicated no genotoxicity nor acute toxicity. Generation of neither NH4+, NO2- nor NO3- was observed during post-treatment. Electric energy per order values were calculated for the first time for (V)UV/O3 treatment in BTWW with a median value of 1.5 kWh/m3. This technology can be proposed for post-treatment of BTWWs of small settlements or livestock farms to degrade micropollutants before water discharge or for production of irrigation water. Further studies are essential in pilot-scale for other applications.
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Affiliation(s)
- Dániel Krakkó
- Laboratory for Environmental Chemistry and Bioanalytics, Institute of Chemistry, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary; Cooperative Research Center for Environmental Sciences, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary
| | - Ádám Illés
- Green Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117, Budapest, Magyar Tudósok körútja 2, Hungary
| | - Viktória Licul-Kucera
- Laboratory for Environmental Chemistry and Bioanalytics, Institute of Chemistry, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary; Cooperative Research Center for Environmental Sciences, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary
| | - Bence Dávid
- Inwatech Environmental Ltd., H-1124, Budapest, Németvölgyi út 114, Hungary
| | - Péter Dobosy
- Centre for Ecological Research, Danube Research Institute, H-1113, Budapest, Karolina út 29-31, Hungary
| | - Andrea Pogonyi
- LightTech Lamp Technology Ltd, H-2120, Dunakeszi, Hegyrejáró utca 1, Hungary
| | - Attila Demeter
- Green Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117, Budapest, Magyar Tudósok körútja 2, Hungary
| | - Victor G Mihucz
- Laboratory for Environmental Chemistry and Bioanalytics, Institute of Chemistry, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary; Cooperative Research Center for Environmental Sciences, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary
| | - Sándor Dóbé
- Green Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117, Budapest, Magyar Tudósok körútja 2, Hungary
| | - Gyula Záray
- Laboratory for Environmental Chemistry and Bioanalytics, Institute of Chemistry, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary; Cooperative Research Center for Environmental Sciences, ELTE - Eötvös Loránd University, H-1117, Budapest, Pázmány Péter Sétány 1/A, Hungary; Centre for Ecological Research, Danube Research Institute, H-1113, Budapest, Karolina út 29-31, Hungary.
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Singh G, Lee JM, Kothandam G, Palanisami T, Al-Muhtaseb AH, Karakoti A, Yi J, Bolan N, Vinu A. A Review on the Synthesis and Applications of Nanoporous Carbons for the Removal of Complex Chemical Contaminants. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200379] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Gurwinder Singh
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jang Mee Lee
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Gopalakrishnan Kothandam
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Thavamani Palanisami
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ala'a H. Al-Muhtaseb
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, P.O. Box 33, Al-Khod 123, Muscat, Oman
| | - Ajay Karakoti
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jiabao Yi
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Nanthi Bolan
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajayan Vinu
- Global Innovative Center for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
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Pap S, Taggart MA, Shearer L, Li Y, Radovic S, Turk Sekulic M. Removal behaviour of NSAIDs from wastewater using a P-functionalised microporous carbon. CHEMOSPHERE 2021; 264:128439. [PMID: 33011477 DOI: 10.1016/j.chemosphere.2020.128439] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Diclofenac (DCF), naproxen (NPX) and ibuprofen (IBF) are three of the most commonly used non-steroidal anti-inflammatory drugs (NSAIDs) worldwide. They are widely detected in natural waters due to their persistence in wastewater treatment, and their removal is desirable in future wastewater management worldwide. In this study, "acid catalyst" functionalisation and subsequent carbonisation were adopted to synthesise a P-doped microporous carbonous adsorbent (CScPA) for NSAID removal. The CScPA was evaluated in depth for its adsorption performance (i.e., isotherms, kinetics and thermodynamics of adsorption at lab-scale). The CScPA had a large surface area (791.1 m2/g) and good porosity (0.392 cm3/g), which facilitated a high maximum adsorption capacity of 62.02 mg/g for a NSAID mixture. Thermodynamic data indicated that the adsorption of these NSAIDs was an endothermic process determined by physisorption (low-energy interactions). XPS analysis revealed the specific interactions involved in the adsorption process, including π-π and n-π electron donor-acceptor (EDA) interactions and hydrogen (H-) bonding. The Freundlich isotherm and Elovich kinetic model provided the best fit to the experimental results, which indicated surface heterogeneity (of the CScPA) and cooperative adsorption mechanisms. The adsorption process was shown to have potential to be applied to real wastewater effluent containing NSAIDs at low environmentally relevant concentrations (removal reached > 90% at 10 μg/L). Analysis of different implementation and cost related factors suggested that the CScPA has the potential for use with "real-world" water matrices, offering a sustainable treatment process for pharmaceutical remediation in wastewater.
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Affiliation(s)
- Sabolc Pap
- University of Novi Sad, Faculty of Technical Sciences, Department of Environmental Engineering and Occupational Safety and Health, Trg Dositeja Obradovića 6, 21 000, Novi Sad, Serbia; Environmental Research Institute, North Highland College, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland, KW14 7JD, UK.
| | - Mark A Taggart
- Environmental Research Institute, North Highland College, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland, KW14 7JD, UK
| | - Lisa Shearer
- Environmental Research Institute, North Highland College, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland, KW14 7JD, UK
| | - Yuan Li
- Environmental Research Institute, North Highland College, University of the Highlands and Islands, Castle Street, Thurso, Caithness, Scotland, KW14 7JD, UK
| | - Sanja Radovic
- University of Novi Sad, Faculty of Technical Sciences, Department of Environmental Engineering and Occupational Safety and Health, Trg Dositeja Obradovića 6, 21 000, Novi Sad, Serbia
| | - Maja Turk Sekulic
- University of Novi Sad, Faculty of Technical Sciences, Department of Environmental Engineering and Occupational Safety and Health, Trg Dositeja Obradovića 6, 21 000, Novi Sad, Serbia
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Cacua-Ortiz SM, Aguirre NJ, Peñuela GA. Methyl Paraben and Carbamazepine in Water and Striped Catfish (Pseudoplatystoma magdaleniatum) in the Cauca and Magdalena Rivers. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:819-826. [PMID: 33084912 DOI: 10.1007/s00128-020-03028-z] [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: 05/10/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Between 2017 and 2019, samplings were carried out in the San Jorge, Cauca and Magdalena River basins in Colombia, to determine the presence of methyl paraben and carbamazepine in water and Pseudoplatystoma magdaleniatum. For the analysis of the samples, a validation of the analytical method was performed, following the EPA method 1694 (Pharmaceutical and personal care products in water), with slight modifications. This was done by liquid-chromatography tandem mass spectrometry, for quantification of methyl paraben and carbamazepine, including parameters of linearity, accuracy precision and veracity. Carbamazepine was found in the Magdalena River at 8.03 ± 0.01 µg/L in transition season. In fish samples, methyl paraben and carbamazepine were detected in a range between 32 and 90.80 µg/kg in transition and dry seasons.
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Affiliation(s)
- Sylvia M Cacua-Ortiz
- GDCON Group, Environmental School, Faculty of Engineering, University Research Headquarters (SIU), University of Antioquia, calle 70 No 52 - 21, 050010, Medellín, Colombia.
| | - Néstor J Aguirre
- Grupo GeoLimna, Environmental School, Faculty of Engineering, University of Antioquia, 050010, Medellín, Colombia
| | - Gustavo A Peñuela
- GDCON Group, Environmental School, Faculty of Engineering, University Research Headquarters (SIU), University of Antioquia, calle 70 No 52 - 21, 050010, Medellín, Colombia
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Zhiteneva V, Ziemendorf É, Sperlich A, Drewes JE, Hübner U. Differentiating between adsorption and biodegradation mechanisms while removing trace organic chemicals (TOrCs) in biological activated carbon (BAC) filters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140567. [PMID: 32659552 DOI: 10.1016/j.scitotenv.2020.140567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/20/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Efficient adsorption of certain trace organic chemicals (TOrCs) present in secondary treated municipal wastewater treatment plant (WWTP) effluents onto granular activated carbon (GAC) has already been demonstrated at lab- and full-scale. Due to high organic matter concentrations in WWTP effluents, GAC filters eventually develop a biofilm and turn into biological activated carbon filters (BAC), where removal of organic compounds is governed by biodegradation as well as by adsorption. However, determining TOrC breakthrough by conducting a long-term BAC column experiment to discern between the removal mechanisms is not possible due to competition for adsorption sites, fluctuating water quality, and other variables. Therefore, a rapid small scale column test (RSSCT) was conducted to determine the contribution of adsorption for select chemicals at 10,000 bed volumes treated (BVT). These results were then used in the pore surface diffusion model (PSDM) to model adsorption behavior at 40,000 BVTs. Pseudo-Freundlich K values obtained from the PSDM model were compared with K values obtained from an integral mass balance calculation. This comparison revealed that the modeling was most accurate for moderately to poorly adsorptive compounds. In comparing RSSCT results to long-term BAC columns, the modeling approach best predicted BAC removal of well adsorbing compounds, such as atenolol, trimethoprim, metoprolol, citalopram, and benzotriazole. However, differences in predicted vs observed BAC removal for the removals of venlafaxine, tramadol and carbamazepine revealed that BAC adsorption capacity was not yet exhausted for these compounds. Therefore, a comparison was not possible. The approach would be improved by operation at longer EBCT and improved calculation of compound fouling indices.
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Affiliation(s)
- Veronika Zhiteneva
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, 85748 Garching, Germany.
| | - Éric Ziemendorf
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, 85748 Garching, Germany.
| | - Alexander Sperlich
- Berliner Wasserbetriebe, Research and Development, 10864 Berlin, Germany.
| | - Jörg E Drewes
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, 85748 Garching, Germany.
| | - Uwe Hübner
- Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, 85748 Garching, Germany.
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Shaipulizan NS, Md Jamil SNA, Kamaruzaman S, Subri NNS, Adeyi AA, Abdullah AH, Abdullah LC. Preparation of Ethylene Glycol Dimethacrylate (EGDMA)-Based Terpolymer as Potential Sorbents for Pharmaceuticals Adsorption. Polymers (Basel) 2020; 12:E423. [PMID: 32059354 PMCID: PMC7077665 DOI: 10.3390/polym12020423] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/25/2019] [Accepted: 01/10/2020] [Indexed: 01/01/2023] Open
Abstract
Ethylene glycol dimethacrylate (EGDMA) is used as a crosslinker in poly(acrylonitrile (AN)-co-vinylbenzyl chloride (VBC)) to investigate the effect of long-chain crosslinker to the porosity of the terpolymer system. Poly(AN-co-EGDMA-co-VBC) is synthesized by using precipitation polymerization method and further hypercrosslinked by Friedel-Crafts reaction. FT-IR spectra of poly(AN-co-EGDMA-co-VBC) show that the absorption bands at ~1290 cm-1 that are assigned to the C-Cl vibrations are almost disappeared in hypercrosslinked (HXL) poly(AN-co-EGDMA-co-VBC) polymers, confirming that the hypercrosslinking reaction is successful. SEM images show that the morphologies of the polymers are retained through the hypercrosslinking reactions. Brunauer-Emmett-Teller (BET) analysis shows that hypercrosslinked polymers had a specific surface area up to 59 m2·g-1. The preliminary performance of the terpolymer adsorbent to capture polar analyte is evaluated by adsorbing salicylic acid and mefenamic acid from aqueous solution in a batch system. The maximum adsorption capacity of salicylic acid and mefenamic acid were up to 416.7 mg·g-1 and 625 mg·g-1, respectively, and the adsorption kinetic data obeyed pseudo-second-order rate equation.
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Affiliation(s)
- Nur Syafiqah Shaipulizan
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.S.S.); (S.K.); (N.N.S.S.); (A.H.A.)
| | - Siti Nurul Ain Md Jamil
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.S.S.); (S.K.); (N.N.S.S.); (A.H.A.)
- Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia
| | - Sazlinda Kamaruzaman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.S.S.); (S.K.); (N.N.S.S.); (A.H.A.)
| | - Nur Nida Syamimi Subri
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.S.S.); (S.K.); (N.N.S.S.); (A.H.A.)
| | - Abel Adekanmi Adeyi
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (A.A.A.); (L.C.A.)
- Department of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University Ado-Ekiti, ABUAD, KM. 8.5, Afe Babalola Way, P.M.B. 5454, Ado-Ekiti 360211, Nigeria
| | - Abdul Halim Abdullah
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.S.S.); (S.K.); (N.N.S.S.); (A.H.A.)
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia
| | - Luqman Chuah Abdullah
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (A.A.A.); (L.C.A.)
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He Q, Liang JJ, Chen LX, Chen SL, Zheng HL, Liu HX, Zhang HJ. Removal of the environmental pollutant carbamazepine using molecular imprinted adsorbents: Molecular simulation, adsorption properties, and mechanisms. WATER RESEARCH 2020; 168:115164. [PMID: 31629229 DOI: 10.1016/j.watres.2019.115164] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/03/2019] [Accepted: 10/05/2019] [Indexed: 05/17/2023]
Abstract
Carbamazepine (CBZ) is a typical pharmaceutical residue commonly found in aqueous environments, but its removal through activated carbon or advanced oxidation processes is often disrupted by co-existing organic matter. An imprinting system which consisted of the target pollutant CBZ (template molecule) and 10 different kinds of functional monomers was constructed via molecular simulation to screen for appropriate monomers, thereby addressing CBZ removal disruptions. An annealing method simulation was used to search for stable, low-energy conformations of the template-monomer interaction system to calculate the binding energy of these different monomers with CBZ. The order of binding affinity calculated was: 4-vinylbenzoic acid > itaconic acid > methacrylic acid, which was consistent with the experimental observations. The adsorption capacity of the molecular imprinted polymer (MIP) prepared using 4-vinylbenzoic acid reached 28.40 mg/g, and the imprinting factor reached 2.72. The simulation and measurement of the ultraviolet spectrum of the imprinting system showed that a new interaction system was formed between the template and monomers, and that multiple binding conformations between them took place when specific recognition occurred. Energy calculation and hydrogen bond analysis revealed that the van der Waals force, including the π-π conjugate and electrostatic forces including hydrogen bonding, played an important role during selective adsorption, which was confirmed by infrared spectroscopy analysis.
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Affiliation(s)
- Qin He
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China; Chongqing Planning and Design Institute, Chongqing, 401147, China.
| | - Jian-Jun Liang
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
| | - Li-Xi Chen
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
| | - Shu-Li Chen
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
| | - Huai-Li Zheng
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
| | - Hong-Xia Liu
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
| | - Hui-Jie Zhang
- Key Laboratory of the Three Gorges Reservoir Region ' s Eco-Environment (Ministry of Education), Chongqing University, Chongqing, 400045, China.
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Removal of selected pharmaceuticals from aqueous matrices with activated carbon under flow conditions. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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