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Ramírez-Montoya LA, Montes-Morán MA, Rangel-Mendez JR, Cervantes FJ. Enhanced anaerobic treatment of synthetic protein-rich wastewater promoted by organic xerogels. Biodegradation 2022; 33:255-265. [PMID: 35477824 DOI: 10.1007/s10532-022-09984-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 04/13/2022] [Indexed: 11/02/2022]
Abstract
Carbon-based materials have been shown to enhance anaerobic digestion processes by promoting direct interspecies electron transfer in methanogenic consortia. However, little is known on their effects during the treatment of complex substrates, such as those derived from protein-rich wastewaters. Here, organic xerogels (OX) are tested, for the first time, as accelerators of the methanogenic activity of an anaerobic consortium treating a synthetic protein-rich wastewater. Three OX with distinct pore size distribution (10 and 1000 nm for OX-10 and OX-1000, respectively) and structural conformation (graphene oxide integration into OX-10-GO polymeric matrix) were synthesized. OX-1000 promoted the highest methane production rate (5.21 mL/g*h, 13.5% increase with respect to the control incubated without OX) among the synthesized OX. Additionally, batch bioreactors amended with OX achieved higher chemical oxygen demand (COD) removal (up to 88%) as compared to the control, which only showed 50% of COD removal. Interestingly, amendment of bioreactors with OX also triggered the production of medium-chain fatty acids, including caprylate and caproate. Moreover, OX decreased the accumulation of ammonium, derived from proteins hydrolysis, partly explained by their adsorption capacities, and probably involving their electron-accepting capacity promoting anaerobic ammonium oxidation. This is the first time that OX were successfully applied as methanogenic accelerators for the anaerobic treatment of synthetic protein-rich wastewater, increasing the methane production rate and COD removal as well as triggering the production of medium chain fatty acids and attenuating the accumulation of ammonium. Therefore, OX are proposed as suitable materials to boost the efficiency of anaerobic systems to treat complex industrial wastewaters.
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Affiliation(s)
- Luis A Ramírez-Montoya
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Universidad Nacional Autónoma de México (UNAM), Campus Juriquilla, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
| | - Miguel A Montes-Morán
- Instituto de Ciencia y Tecnología del Carbono (INCAR-CSIC), Francisco Pintado Fe 26, 33011, Oviedo, Spain
| | - J Rene Rangel-Mendez
- División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), Camino a la Presa San José 2055, Col. Lomas 4a. Sección, San Luis Potosí, 78216, SLP, Mexico
| | - Francisco J Cervantes
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Universidad Nacional Autónoma de México (UNAM), Campus Juriquilla, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico.
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2
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Pauletto PS, Moreno-Pérez J, Hernández-Hernández LE, Bonilla-Petriciolet A, Dotto GL, Salau NPG. Novel biochar and hydrochar for the adsorption of 2-nitrophenol from aqueous solutions: An approach using the PVSDM model. CHEMOSPHERE 2021; 269:128748. [PMID: 33139043 DOI: 10.1016/j.chemosphere.2020.128748] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/13/2020] [Accepted: 10/23/2020] [Indexed: 06/11/2023]
Abstract
Two new adsorbents, namely avocado-based hydrochar and LDH/bone-based biochar, were developed, characterized, and applied for adsorbing 2-nitrophenol. The pore volume and surface diffusion model (PVSDM) was numerically solved for different geometries and applied to interpret the adsorption decay curves. Both adsorbents presented interesting textural and physicochemical characteristics, which achieved maximum adsorption capacities of 761 mg/g for biochar and 562 mg/g for hydrochar. The adsorption equilibrium data were well fitted by Henry isotherm. Besides, thermodynamic investigation revealed endothermic adsorption with the occurrence of electrostatic interactions. PVSDM predicted the adsorption decay curves for different adsorbent geometries at different initial concentrations of 2-nitrophenol. The surface diffusion was the main intraparticle mass transport mechanism. Furthermore, the external mass transfer and surface diffusion coefficients increased with the increase of 2-nitrophenol concentration.
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Affiliation(s)
- P S Pauletto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, 1000, Roraima Avenue, 97105-900, Santa Maria, RS, Brazil.
| | - J Moreno-Pérez
- Instituto Tecnológico de Aguascalientes, Aguascalientes, 20256, Mexico.
| | | | | | - G L Dotto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, 1000, Roraima Avenue, 97105-900, Santa Maria, RS, Brazil.
| | - N P G Salau
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, 1000, Roraima Avenue, 97105-900, Santa Maria, RS, Brazil.
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Moreno-Pérez J, Pauletto PS, Cunha AM, Bonilla-Petriciolet Á, Salau NP, Dotto GL. Three-dimensional mass transport modeling of pharmaceuticals adsorption inside ZnAl/biochar composite. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126170] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Inglezakis VJ, Balsamo M, Montagnaro F. Liquid–Solid Mass Transfer in Adsorption Systems—An Overlooked Resistance? Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c05032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vassilis J. Inglezakis
- Chemical and Process Engineering Department, University of Strathclyde, Glasgow G1 1XJ, U.K
| | - Marco Balsamo
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Naples 80126, Italy
| | - Fabio Montagnaro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Naples 80126, Italy
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Arshavsky Graham S, Boyko E, Salama R, Segal E. Mass Transfer Limitations of Porous Silicon-Based Biosensors for Protein Detection. ACS Sens 2020; 5:3058-3069. [PMID: 32896130 PMCID: PMC7589614 DOI: 10.1021/acssensors.0c00670] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
![]()
Porous
silicon (PSi) thin films have been widely studied for biosensing
applications, enabling label-free optical detection of numerous targets.
The large surface area of these biosensors has been commonly recognized
as one of the main advantages of the PSi nanostructure. However, in
practice, without application of signal amplification strategies,
PSi-based biosensors suffer from limited sensitivity, compared to
planar counterparts. Using a theoretical model, which describes the
complex mass transport phenomena and reaction kinetics in these porous
nanomaterials, we reveal that the interrelated effect of bulk and
hindered diffusion is the main limiting factor of PSi-based biosensors.
Thus, without significantly accelerating the mass transport to and
within the nanostructure, the target capture performance of these
biosensors would be comparable, regardless of the nature of the capture
probe–target pair. We use our model to investigate the effect
of various structural and biosensor characteristics on the capture
performance of such biosensors and suggest rules of thumb for their
optimization.
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Affiliation(s)
- Sofia Arshavsky Graham
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel
- Institute of Technical Chemistry, Leibniz Universität Hannover, Callinstr. 5, Hanover 30167, Germany
| | - Evgeniy Boyko
- Department of Mechanical Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Rachel Salama
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel
- The Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
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6
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A Fractal-Based Correlation for Time-Dependent Surface Diffusivity in Porous Adsorbents. Processes (Basel) 2020. [DOI: 10.3390/pr8060689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Fluid–solid adsorption processes are mostly governed by the adsorbate transport in the solid phase and surface diffusion is often the limiting step of the overall process in microporous materials such as zeolites. This work starts from a concise review of concepts and models for surface transport and variable surface diffusivity. It emerges that the phenomenon of hindered surface diffusion for monolayer adsorption, which is common in zeolites, and models able to fit a non-monotonic trend of surface diffusivity against adsorbate solid phase concentration, have received limited attention. This work contributes to the literature of hindered diffusion by formulating a time-dependent equation for surface diffusivity based on fractal dynamics concepts. The proposed equation takes into account the contributions of both fractal-like diffusion (a time-decreasing term) and hopping diffusion (a time-increasing term). The equation is discussed and numerically analyzed to testify its ability to reproduce the possible different patterns of surface diffusivity vs. time.
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Pauletto P, Dotto G, Salau N. Diffusion mechanisms and effect of adsorbent geometry on heavy metal adsorption. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.02.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Inglezakis VJ, Fyrillas MM. Experimental study of zeolitic diffusion by use of a concentration-dependent surface diffusion model. Heliyon 2019; 5:e02143. [PMID: 31388581 PMCID: PMC6667703 DOI: 10.1016/j.heliyon.2019.e02143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/29/2019] [Accepted: 07/19/2019] [Indexed: 11/29/2022] Open
Abstract
Surface diffusivity in adsorption and ion exchange processes is probably the most important property studied expensively in the literature but some aspects, especially its dependence on solid phase concentration, is still an open subject to discussion. In this study a new concentration-dependent surface diffusion model, equipped with a flexible double selectivity equilibrium relationship is applied on the removal of Pb2+, Cr3+, Fe3+ and Cu2+ from aqueous solutions using a natural zeolite. The model incorporates the Chen-Yang surface diffusivity correlation able to deal with positive and negative dependence with surface coverage. The double selectivity equilibrium relationship successfully represents the experimental equilibrium data, which follow Langmurian isotherm type for Pb2+, sigmoidal for Cr3+ and Fe3+ and linear for Cu2+. The concentration-dependent surface diffusion model was compared with the constant diffusivity surface diffusion model and found to be moderately more accurate but considerably more useful as it provides more insights into the diffusion mechanism. The application of the model resulted in an average deviation of 8.56 ± 6.74% from the experimental data and an average solid phase diffusion coefficients between 10−9 and 10−10 cm2/s. The results showed that the diffusion of metal ions in the zeolite structure is unhindered following the surface diffusion mass transfer mechanism.
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Affiliation(s)
- V J Inglezakis
- The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Astana, Kazakhstan.,Environmental Science & Technology Group (ESTg), Chemical & Materials Engineering Department, School of Engineering, Nazarbayev University, Astana, Kazakhstan
| | - M M Fyrillas
- Department of Mechanical Engineering, Frederick University, Nicosia, Cyprus
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9
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Gong K, Pan C, He K, Zhu H, Chen L, Hou M, Wang Y. Influence of poly(acrylic acid) grafting density on switchable protein adsorption/desorption of poly(2‐methyl‐2‐oxazoline)/poly(acrylic acid) mixed brushes. J Appl Polym Sci 2019. [DOI: 10.1002/app.48135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kai Gong
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
| | - Chao Pan
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
| | - Kang He
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
| | - Haikun Zhu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
| | - Lijuan Chen
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
- Colllege of Materials and Chemical EngineeringWest Anhui University Luan 237012 People's Republic of China
| | - Mingxin Hou
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
| | - Yanmei Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and EngineeringUniversity of Science and Technology of China Hefei 230026 People's Republic of China
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Inglezakis VJ, Fyrillas MM, Park J. Variable diffusivity homogeneous surface diffusion model and analysis of merits and fallacies of simplified adsorption kinetics equations. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:224-245. [PMID: 30594723 DOI: 10.1016/j.jhazmat.2018.12.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/23/2018] [Accepted: 12/07/2018] [Indexed: 05/27/2023]
Abstract
Adsorption and ion exchange phenomena are encountered in several separation processes, which in turn, are of vital importance across various industries. Although the literature on adsorption kinetics modeling is rich, the majority of the models employed are empirical, based on chemical reaction kinetics or oversimplified versions of diffusion models. In this paper, the fifteen most popular simplified adsorption kinetics equations are presented and discussed. A new versatile variable-diffusivity two-phase homogeneous diffusion model is presented and used to evaluate the analytical adsorption models. Aspects of ion exchange kinetics are also addressed.
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Affiliation(s)
- V J Inglezakis
- Nazarbayev University, School of Engineering, Chemical & Materials Engineering Department, Environmental Science & Technology Group (ESTg), Astana, Kazakhstan; The Environment and Resource Efficiency Cluster (EREC), Nazarbayev University, Astana, Kazakhstan.
| | - M M Fyrillas
- Frederick University, Department of Mechanical Engineering, Nicosia, Cyprus.
| | - J Park
- University of Wisconsin-Madison, College of Engineering, Civil and Environmental Engineering, Madison, USA.
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Insight into the mechanism and factors on encapsulating basic model protein, lysozyme, into heparin doped CaCO3. Colloids Surf B Biointerfaces 2019; 175:184-194. [DOI: 10.1016/j.colsurfb.2018.11.079] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/25/2018] [Accepted: 11/28/2018] [Indexed: 11/17/2022]
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