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Elangovan B, Detchanamurthy S, Senthil Kumar P, Rajarathinam R, Deepa VS. Biotreatment of Industrial Wastewater using Microalgae: A Tool for a Sustainable Bioeconomy. Mol Biotechnol 2023:10.1007/s12033-023-00971-0. [PMID: 37999921 DOI: 10.1007/s12033-023-00971-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023]
Abstract
Fresh water is one of the essential sources of life, and its requirement has increased in the past years due to population growth and industrialization. Industries use huge quantities of fresh water for their processes, and generate high quantities of wastewater rich in organic matter, nitrates, and phosphates. These effluents have contaminated the freshwater sources and there is a need to recycle this wastewater in an ecologically harmless manner. Microalgae use the nutrients in the wastewater as a medium for growth and the biomass produced are rich in nutrition that can cater growing food and energy needs. The primary and secondary metabolites of microalgae are utilized as biofuel and as active ingredients in cosmetics, animal feed, therapeutics, and pharmaceutical products. In this review, we explore food processing industries like dairy, meat, aquaculture, breweries, and their wastewater for the microalgal growth. Current treatment methods are expensive and energy demanding, which indirectly leads to higher greenhouse gas emissions. Microalgae acts as a potential biotreatment tool and mitigates carbon dioxide due to their high photosynthetic efficiency. This review aims to address the need to recycle wastewater generated from such industries and potentiality to use microalgae for biotreatment. This will help to build a circular bioeconomy by using wastewater as a valuable resource to produce valuable products.
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Affiliation(s)
- Balaji Elangovan
- R&D, Seagrass Tech Pvt. Ltd, Karaikal, 609604, Puducherry, India
| | | | - P Senthil Kumar
- Centre for Pollution Control and Environmental Engineering, School of Engineering and Technology, Pondicherry University, Kalapet, 605014, Puducherry, India.
| | - Ravikumar Rajarathinam
- Department of Biotechnology, Vel Tech Rangarajan Dr. Sakunthala R&D Institute of Science and Technology, Avadi, Chennai, Tamilnadu, 600062, India
| | - Vijaykumar Sudarshana Deepa
- Department of Biotechnology, National Institute of Technology, Tadepalligudem, 534101, Andhra Pradesh, India.
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2
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Thermophilic Water Gas Shift Reaction at High Carbon Monoxide and Hydrogen Partial Pressures in Parageobacillus thermoglucosidasius KP1013. FERMENTATION 2022. [DOI: 10.3390/fermentation8110596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The facultatively anaerobic Parageobacillus thermoglucosidasius oxidizes carbon monoxide to produce hydrogen via the water gas shift (WGS) reaction. In the current work, we examined the influence of carbon monoxide (CO) and hydrogen (H2) on the WGS reaction in the thermophilic P. thermoglucosidasius by cultivating two hydrogenogenic strains under varying CO and H2 compositions. Microbial growth and dynamics of the WGS reaction were monitored by evaluating parameters such as pressure, headspace composition, metabolic intermediates, pH, and optical density. Our analyses revealed that compared to the previously studied P. thermoglucosidasius strains, the strain KP1013 demonstrated higher CO tolerance and improved WGS reaction kinetics. Under anaerobic conditions, the lag phase before the WGS reaction shortened to 8 h, with KP1013 showing no hydrogen-induced product inhibition at hydrogen partial pressures up to 1.25 bar. The observed lack of product inhibition and the reduced lag phase of the WGS reaction support the possibility of establishing an industrial process for biohydrogen production with P. thermoglucosidasius.
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Kiefer PM, Daschakraborty S, Pines D, Pines E, Hynes JT. Electron Flow Characterization of Charge Transfer for Carbonic Acid to Strong Base Proton Transfer in Aqueous Solution. J Phys Chem B 2021; 125:11473-11490. [PMID: 34623157 DOI: 10.1021/acs.jpcb.1c05824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Protonation of the strong base methylamine CH3NH2 by carbonic acid H2CO3 in aqueous solution, HOCOOH···NH2CH3 → HOCOO-···+HNH2CH3, has been previously studied ( J. Phys. Chem. B 2016, 109, 2271-2280; J. Phys. Chem. B 2016, 109, 2281-2290) via Car-Parinnello molecular dynamics. This proton transfer (PT) reaction within a hydrogen (H)-bonded complex was found to be barrierless and very rapid, with key reaction coordinates comprising the proton coordinate, the H-bond separation RON, and a solvent coordinate, reflecting the water solvent rearrangement involved in the neutral to ion pair conversion. In the present work, the reaction's charge flow aspects are analyzed in detail, especially a description via Mulliken charge transfer for PT (MCTPT). A natural bond orbital analysis and some extensions of them are employed for the complex's electronic structure during the reaction trajectories. Results demonstrate that consistent with the MCTPT picture, the charge transfer (CT) occurs from a methylamine base nonbonding orbital to a carbonic acid antibonding orbital. A complementary MCTPT reaction product perspective of CT from the antibonding orbital of the HN+ moiety to the nonbonding orbital of the oxygen in the H-bond complex is also presented. σOH and σHN+ bond order expressions show this CT to occur within the H-bond OHN triad, an aspect key for simultaneous bond-breaking and -forming in the PT reaction.
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Affiliation(s)
- Philip M Kiefer
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Snehasis Daschakraborty
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
| | - Dina Pines
- Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Ehud Pines
- Department of Chemistry, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - James T Hynes
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0215, United States.,PASTEUR, Department of Chemistry, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
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Karimova NV, Chen J, Gord JR, Staudt S, Bertram TH, Nathanson GM, Gerber RB. S N2 Reactions of N 2O 5 with Ions in Water: Microscopic Mechanisms, Intermediates, and Products. J Phys Chem A 2020; 124:711-720. [PMID: 31880456 DOI: 10.1021/acs.jpca.9b09095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Reactions of dinitrogen pentoxide (N2O5) greatly affect the concentrations of NO3, ozone, OH radicals, methane, and more. In this work, we employ ab initio molecular dynamics and other tools of computational chemistry to explore reactions of N2O5 with anions hydrated by 12 water molecules to shed light on this important class of reactions. The ions investigated are Cl-, SO42-, ClO4-, and RCOO- (R = H, CH3, C2H5). The following main results are obtained: (i) all the reactions take place by an SN2-type mechanism, with a transition state that involves a contact ion pair (NO2+NO3-) that interacts strongly with water molecules. (ii) Reactions of a solvent-separated nitronium ion (NO2+) are not observed in any of the cases. (iii) An explanation is provided for the suppression of ClNO2 formation from N2O5 reacting with salty water when sulfate or acetate ions are present, as found in recent experiments. (iv) Formation of novel intermediate species, such as (SO4NO2-) and RCOONO2, in these reactions is predicted. The results suggest atomistic-level mechanisms for the reactions studied and may be useful for the development of improved modeling of reaction kinetics in aerosol particles.
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Affiliation(s)
- Natalia V Karimova
- Department of Chemistry , University of California, Irvine , Irvine 92697 , California , United States
| | - James Chen
- Department of Chemistry , University of California, Irvine , Irvine 92697 , California , United States
| | - Joseph R Gord
- Department of Chemistry , University of Wisconsin-Madison , Madison 53706 , Wisconsin , United States
| | - Sean Staudt
- Department of Chemistry , University of Wisconsin-Madison , Madison 53706 , Wisconsin , United States
| | - Timothy H Bertram
- Department of Chemistry , University of Wisconsin-Madison , Madison 53706 , Wisconsin , United States
| | - Gilbert M Nathanson
- Department of Chemistry , University of Wisconsin-Madison , Madison 53706 , Wisconsin , United States
| | - R Benny Gerber
- Department of Chemistry , University of California, Irvine , Irvine 92697 , California , United States.,Institute of Chemistry and Fritz Haber Research Center , Hebrew University of Jerusalem , Jerusalem 91904 , Israel
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Sakti AW, Nishimura Y, Nakai H. Recent advances in quantum‐mechanical molecular dynamics simulations of proton transfer mechanism in various water‐based environments. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2020. [DOI: 10.1002/wcms.1419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Aditya W. Sakti
- Element Strategy Initiative for Catalysts and Batteries (ESICB) Kyoto University Kyoto Japan
| | - Yoshifumi Nishimura
- Waseda Research Institute for Science and Engineering (WISE) Waseda University Tokyo Japan
| | - Hiromi Nakai
- Element Strategy Initiative for Catalysts and Batteries (ESICB) Kyoto University Kyoto Japan
- Waseda Research Institute for Science and Engineering (WISE) Waseda University Tokyo Japan
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering Waseda University Tokyo Japan
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Zakai I, Grinstein D, Welner S, Gerber RB. Structures, Stability, and Decomposition Dynamics of the Polynitrogen Molecule N5+B(N3)4– and Its Dimer [N5+]2[B(N3)4–]2. J Phys Chem A 2019; 123:7384-7393. [DOI: 10.1021/acs.jpca.9b03704] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Itai Zakai
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University, Jerusalem 9190401, Israel
| | - Dan Grinstein
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University, Jerusalem 9190401, Israel
| | - Shmuel Welner
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University, Jerusalem 9190401, Israel
| | - R. Benny Gerber
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University, Jerusalem 9190401, Israel
- Department of Chemistry, University of California, Irvine, California 92697, United States
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Thomas DA, Mucha E, Lettow M, Meijer G, Rossi M, von Helden G. Characterization of a trans-trans Carbonic Acid-Fluoride Complex by Infrared Action Spectroscopy in Helium Nanodroplets. J Am Chem Soc 2019; 141:5815-5823. [PMID: 30883095 PMCID: PMC6727381 DOI: 10.1021/jacs.8b13542] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
![]()
The high Lewis basicity
and small ionic radius of fluoride promote
the formation of strong ionic hydrogen bonds in the complexation of
fluoride with protic molecules. Herein, we report that carbonic acid,
a thermodynamically disfavored species that is challenging to investigate
experimentally, forms a complex with fluoride in the gas phase. Intriguingly,
this complex is highly stable and is observed in abundance upon nanoelectrospray
ionization of an aqueous sodium fluoride solution in the presence
of gas-phase carbon dioxide. We characterize the structure and properties
of the carbonic acid–fluoride complex, F–(H2CO3), and its deuterated isotopologue, F–(D2CO3), by helium nanodroplet
infrared action spectroscopy in the photon energy range of 390–2800
cm–1. The complex adopts a C2v symmetry structure with the carbonic acid
in a planar trans–trans conformation and both OH groups forming
ionic hydrogen bonds with the fluoride. Substantial vibrational anharmonic
effects are observed in the infrared spectra, most notably a strong
blue shift of the symmetric hydrogen stretching fundamental relative
to predictions from the harmonic approximation or vibrational second-order
perturbation theory. Ab initio thermostated ring-polymer molecular
dynamics simulations indicate that this blue shift originates from
strong coupling between the hydrogen stretching and bending vibrations,
resulting in an effective weakening of the OH···F– ionic hydrogen bonds.
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Affiliation(s)
- Daniel A Thomas
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Eike Mucha
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Maike Lettow
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Mariana Rossi
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Gert von Helden
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , 14195 Berlin , Germany
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8
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Anharmonic vibrational spectroscopy calculations using the ab initio CSP method: Applications to H2CO3, (H2CO3)2, H2CO3-H2O and isotopologues. Chem Phys 2018. [DOI: 10.1016/j.chemphys.2017.12.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Hirshberg B, Gerber RB, Krylov AI. Autocorrelation of electronic wave-functions: a new approach for describing the evolution of electronic structure in the course of dynamics. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1464675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Barak Hirshberg
- Fritz Haber Center for Molecular Dynamics, Institute of Chemistry , Jerusalem, Israel
| | - R. Benny Gerber
- Fritz Haber Center for Molecular Dynamics, Institute of Chemistry , Jerusalem, Israel
- Department of Chemistry, University of California , Irvine, CA, USA
| | - Anna I. Krylov
- Department of Chemistry, University of Southern California , Los Angeles, CA, USA
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Zhang T, Lan X, Wang R, Roy S, Qiao Z, Lu Y, Wang Z. The catalytic effects of H2CO3, CH3COOH, HCOOH and H2O on the addition reaction of CH2OO + H2O → CH2(OH)OOH. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1454612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Tianlei Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, P. R. China
| | - Xinguang Lan
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, P. R. China
| | - Rui Wang
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, P. R. China
| | - Soumendra Roy
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, P. R. China
| | - Zhangyu Qiao
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, P. R. China
| | - Yousong Lu
- Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, P. R. China
| | - Zhuqing Wang
- Analytical and Testing Center, Sichuan University of Science & Engineering, Zigong, P. R. China
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11
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Hirshberg B, Rossich Molina E, Götz AW, Hammerich AD, Nathanson GM, Bertram TH, Johnson MA, Gerber RB. N2O5at water surfaces: binding forces, charge separation, energy accommodation and atmospheric implications. Phys Chem Chem Phys 2018; 20:17961-17976. [DOI: 10.1039/c8cp03022g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Studying the interactions between N2O5and water in nano-sized clusters, in bulk and on the surface of water.
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Affiliation(s)
- Barak Hirshberg
- The Institute of Chemistry and the Fritz Haber Center for Molecular Dynamics
- the Hebrew University
- Jerusalem 9190401
- Israel
| | - Estefanía Rossich Molina
- The Institute of Chemistry and the Fritz Haber Center for Molecular Dynamics
- the Hebrew University
- Jerusalem 9190401
- Israel
| | - Andreas W. Götz
- San Diego Supercomputer Center
- University of California
- San Diego, La Jolla
- USA
| | | | | | | | | | - R. Benny Gerber
- The Institute of Chemistry and the Fritz Haber Center for Molecular Dynamics
- the Hebrew University
- Jerusalem 9190401
- Israel
- Department of Chemistry, University of California, Irvine
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12
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Zakai I, Varner ME, Gerber RB. Concerted transfer of multiple protons in acid-water clusters: [(HCl)(H 2O)] 2 and [(HF)(H 2O)] 4. Phys Chem Chem Phys 2017; 19:20641-20646. [PMID: 28737803 DOI: 10.1039/c7cp04006g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations using directly ab initio potentials are carried out for the ionically bonded clusters [(Cl-)(H3O+)]2 and [(F-)(H3O+)]4 to explore their transitions to the hydrogen-bonded [(HCl)(H2O)]2 and [(HF)(H2O)]4 structures during the first picosecond of simulation. Both the ionic and the H-bonded structures that are formed are highly symmetric. It is found that proton transfers are concerted in all trajectories for [(Cl-)(H3O+)]2. For [(F-)(H3O+)]4, the fully concerted mechanism is dominant but partially concerted transfers of two or three protons at the same time also occur. The concerted mechanism also holds for the reverse process of ionization of neutral acid molecules. It is suggested that the high symmetry of the ionic and the H-bonded structures plays a role in the preference for concerted transfers. Possible implications of the results for proton transfers in other systems are discussed.
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Affiliation(s)
- I Zakai
- Institute of Chemistry and The Fritz Haber Research Center, The Hebrew University, Jerusalem 91904, Israel
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Rasal KB, Yadav GD. La–Mg mixed oxide as a highly basic water resistant catalyst for utilization of CO2 in the synthesis of quinazoline-2,4(1H,3H)-dione. RSC Adv 2016. [DOI: 10.1039/c6ra15802a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of quinazoline-2,4(1H,3H)-dione using La–Mg mixed oxide in water.
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Affiliation(s)
- Kalidas B. Rasal
- Department of Chemical Engineering
- Institute of Chemical Technology
- Mumbai–400 019
- India
| | - Ganapati D. Yadav
- Department of Chemical Engineering
- Institute of Chemical Technology
- Mumbai–400 019
- India
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