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Jeong SS, Park BJ, Yoon JH, Kirkham MB, Yang JE, Kim HS. Mechanistic Evidence for Hg Removal from Wastewater by Biologically Produced Sulfur. TOXICS 2024; 12:278. [PMID: 38668501 PMCID: PMC11053473 DOI: 10.3390/toxics12040278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/29/2024]
Abstract
A significant quantity of biologically produced sulfur (BPS) is generated as a by-product of chemical and biological desulfurization processes applied to landfill gas treatment. The beneficial upcycling of BPS has seen limited use in the environmental context. The effectiveness and underlying mechanism of BPS as an adsorbent for removing Hg2+ from both solution and wastewater were elucidated based on experiments encompassing surface characterization, adsorption isotherms, kinetics, and thermodynamics. The BPS exhibited remarkable efficacy in removing Hg2+ from solution, with the Langmuir model accurately describing the adsorption process and showing a maximum adsorption capacity of 244 mg g-1. Surface analysis through X-ray photoelectron spectroscopy and scanning electron microscopy revealed that Hg2+ complexed with sulfide on BPS surfaces, forming stable HgS. The adsorbed Hg was strongly retained in BPS, with less than 0.2% of the adsorbed Hg desorbed by strong acids. Adsorption kinetics followed the double-exponential first-order model, showing an initial rapid adsorption phase wherein 75% of the initial Hg2+ was removed within 5 min, followed by a slower adsorption rate. The thermodynamic parameters suggested that adsorption of Hg2+ by BPS was a spontaneous and endothermic process. Additionally, BPS effectively removed Hg2+ from wastewater, showing preference for Hg over other co-existing metals. These findings underscore the potential of BPS as an effective adsorbent for Hg2+ removal from wastewater.
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Affiliation(s)
- Seok-Soon Jeong
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Byung-Jun Park
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Jung-Hwan Yoon
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Mary Beth Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA;
| | - Jae-E. Yang
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Hyuck-Soo Kim
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
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Zhou X, Zhang L, Liu H, Yang Q, Zhu S, Wu H, Ohno T, Zhang Y, Wang T, Su D, Wang C. The powerful combination of 2D/2D Ni-MOF/carbon nitride for deep desulfurization of thiophene in fuel: Conversion route, DFT calculation, mechanism. J Colloid Interface Sci 2024; 658:627-638. [PMID: 38134671 DOI: 10.1016/j.jcis.2023.12.105] [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: 10/22/2023] [Revised: 12/06/2023] [Accepted: 12/16/2023] [Indexed: 12/24/2023]
Abstract
2D/2D Ni-MOF/g-C3N4 nanocomposite was utilized for desulfurization. The multilayer pore structure and high specific surface area of Ni-MOF/g-C3N4 promote the adsorption and conversion of thiophene. In addition, the two-dimensional structure exposes more active centers and shortens photogenerated carrier migration to the material surface distance, it enhances photogenerated charge transfer. The Ni-MOF and g-C3N4 construct a Z-scheme heterojunction structure with tight contact, it effectively enhances the material's photocatalytic redox ability. In the light, the material generates more photocarriers for the production of free radicals including hydroxyl radicals, holes, and superoxide radicals. The higher carrier concentration of Ni-MOF/g-C3N4 promotes the activation and oxidation of thiophene, consequently enhancing the photocatalytic desulfurization capability. The results showed that the conversion of thiophene was 98.82 % in 3 h under visible light irradiation. Radical capture experiments and analysis using electron paramagnetic resonance spectroscopy demonstrated that superoxide radicals, holes, and hydroxyl radicals played crucial roles in PODS (photocatalytic oxidative desulfurization). In addition, DFT (density functional theory) calculations were conducted to determine the paths of electron migration and TH (thiophene) adsorption energy. Finally, a mechanism for photocatalytic desulfurization was proposed based on the comprehensive analysis of theoretical calculations and experimental studies.
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Affiliation(s)
- Xiaoyu Zhou
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Lei Zhang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Hang Liu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Qing Yang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Shan Zhu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Haonan Wu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Teruhisa Ohno
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
| | - Yu Zhang
- School of Nursing, Yangzhou University, 136 Jiangyang Middle Road, Yangzhou 225009, China
| | - Tianyi Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Dawei Su
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Chengyin Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
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Kim HS, Lee YK, Park BJ, Lee JE, Jeong SS, Kim KR, Kim SC, Kirkham MB, Yang JE, Kim KH, Yoon JH. Alginate-encapsulated biochar as an effective soil ameliorant for reducing Pb phytoavailability to lettuce (Lactuca sativa L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:22802-22813. [PMID: 38411914 DOI: 10.1007/s11356-024-32594-6] [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: 11/06/2023] [Accepted: 02/18/2024] [Indexed: 02/28/2024]
Abstract
The alginate-biochar formulation for metal removal from aquatic environments has been widely tried but its use for lowering phytoavailability of metals in the soil-crop continuum is limited. Biochar has been increasingly used as a soil amendment due to its potential for soil carbon sequestration and sorption capacity. Handling of powdery biochar as a soil top-dressing material is, however, cumbersome and vulnerable to loss by water and wind. In this experiment, biochar powder, which was pyrolyzed from oak trees, was encapsulated into beads with alginate, which is a naturally occurring polysaccharide found in brown algae. Both batch and pot experiments were conducted to examine the effects of the alginate-encapsulated biochar beads (BB), as compared to its original biochar powdery form (BP), on the Pb adsorption capacity and phytoavailability of soil Pb to lettuce (Lactuca sativa L.). The BB treatment improved reactivity about six times due to a higher surface area (287 m2 g-1) and five times due to a higher cation exchange capacity (50 cmolc kg-1) as compared to the BP treatment. The maximum sorption capacity of Pb was increased to 152 from 81 mg g-1 because of surface chemosorption. Adsorption of Pb onto BB followed multiple first-order kinetics and comprised fast and slow steps. More than 60% of the Pb was adsorbed in the fast step, i.e., within 3 h. Also, the BB treatment, up to the 5% level (w/w), increased soil pH from 5.4 to 6.5 and lowered the phytoavailable fraction of Pb in soil from 5.7 to 0.3 mg kg-1. The Pb concentrations in lettuce cultivated at 5% for the BP and BB treatments were similar but 63 and 66% lower, respectively, than those of the control soil. The results showed that the encapsulation of biochar with alginate enhanced adsorption by the biochar.
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Affiliation(s)
- Hyuck Soo Kim
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Yeon Kyu Lee
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Byung Jun Park
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ji Eun Lee
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Seok Soon Jeong
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Kwon Rae Kim
- Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju, 52725, Republic of Korea
| | - Sung Chul Kim
- Department of Bio-Environmental Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - M B Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506-0110, USA
| | - Jae E Yang
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Kye-Hoon Kim
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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Gong D, Yang P, Zhao J, Jia X. Selective removal of thallium from water by MnO 2-doped magnetic beads: Performance and mechanism study. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120147. [PMID: 38325278 DOI: 10.1016/j.jenvman.2024.120147] [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: 09/29/2023] [Revised: 12/22/2023] [Accepted: 01/15/2024] [Indexed: 02/09/2024]
Abstract
Aqueous thallium has posed an increasing threat to environment as human's intensified activities in mining, refining, process and discharge. Remediation on thallium pollution has been of up-most importance to water treatment. In present work, MnO2 and magnetic Fe3O4 have been implanted to sodium alginate (SA) in presence of carboxyl methyl cellulose (CMC), and the resultant beads consisted of SA/CMC/MnO2/Fe3O4 were characterized. The materials were applied to treatment of Tl-contaminated water as adsorbent in lab. The removal results revealed that the adsorption capacity reached 38.8 mg (Tl)·g (beads)-1 and almost 100 % removal efficiency was achieved. The residual Tl was below 0.1 μg·L-1, meeting the discharge standard regulated in China. The kinetic adsorption was better described as a pseudo-second-order and three-step intra-particle diffusion model. Freundlich isotherm was well fitted the experimental data. The absorbent shown an excellent competitive specificity (KTl/M: ∼104!) over common hazardous ions Cu2+, Cd2+, Co2+, Pb2+ and Cr3+, as well as naturally abundant K+ and Na+ (KTl/M: 10-102) in mimic environmental conditions. Regeneration and reusability of the absorbent was also verified by five absorption-desorpotion cycles. XPS results revealed that a redox reaction between Mn4+ with Tl+, and an ion exchange of H+ (-O-Fe) and Tl+ were assumed to be main process for the specific capturing. This study provided an efficient SA/CMC/MnO2/Fe3O4 composite beads that could be a promising adsorbent for Tl-polluted water treatment.
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Affiliation(s)
- Dirong Gong
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China.
| | - Panpan Yang
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Junyi Zhao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, No.1799, Jimei Road, Xiamen, Fujian, 361021, PR China; ZheJiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo, 315830, PR China
| | - Xiaoyu Jia
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, No.1799, Jimei Road, Xiamen, Fujian, 361021, PR China; ZheJiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Ningbo, 315830, PR China.
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Alsanea A, Bounaga A, Danouche M, Lyamlouli K, Zeroual Y, Boulif R, Zhou C, Rittmann B. Optimizing Autotrophic Sulfide Oxidation in the Oxygen-Based Membrane Biofilm Reactor to Recover Elemental Sulfur. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:21736-21743. [PMID: 38085930 DOI: 10.1021/acs.est.3c05785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Biological sulfide oxidation is an efficient means to recover elemental sulfur (S0) as a valuable resource from sulfide-bearing wastewater. This work evaluated the autotrophic sulfide oxidation to S0 in the O2-based membrane biofilm reactor (O2-MBfR). High recovery of S0 (80-90% of influent S) and high sulfide oxidation (∼100%) were simultaneously achieved when the ratio of O2-delivery capacity to sulfide-to S0 surface loading (SL) (O2/S2- → S0 ratio) was around 1.5 (g O2/m2-day/g O2/m2-day). On average, most of the produced S0 was recovered in the MBfR effluent, although the biofilm could be a source or sink for S0. Shallow metagenomic analysis of the biofilm showed that the top sulfide-oxidizing genera present in all stages were Thauera, Thiomonas, Thauera_A, and Pseudomonas. Thiomonas or Pseudomonas was the most important genus in stages that produced almost only S0 (i.e., the O2/S2- → S0 ratio around 1.5 g of the O2/m2-day/g O2/m2-day). With a lower sulfide SL, the S0-producing genes were sqr and fccAB in Thiomonas. With a higher sulfide SL, the S0-producing genes were in the soxABDXYZ system in Pseudomonas. Thus, the biofilm community of the O2-MBfR adapted to different sulfide-to-S0 SLs and corresponding O2-delivery capacities. The results illustrate the potential for S0 recovery using the O2-MBfR.
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Affiliation(s)
- Anwar Alsanea
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, Arizona 85287-5701, United States
| | - Ayoub Bounaga
- Chemical & Biochemical Sciences Department, Mohammed VI Polytechnic University, Benguerir 43150, Morocco
| | - Mohammed Danouche
- Chemical & Biochemical Sciences Department, Mohammed VI Polytechnic University, Benguerir 43150, Morocco
| | - Karim Lyamlouli
- College of Sustainable Agriculture and Environmental Sciences, Agrobioscience Program, Mohammed VI Polytechnic University, Benguerir 43150, Morocco
| | - Youssef Zeroual
- Situation Innovation, OCP Group, BP 118, Jorf Lasfar, El Jadida 24000, Morocco
| | - Rachid Boulif
- Chemical & Biochemical Sciences Department, Mohammed VI Polytechnic University, Benguerir 43150, Morocco
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, Arizona 85287-5701, United States
| | - Bruce Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, Arizona 85287-5701, United States
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Electronic state tuning over Mo-doped W18O49 ultrathin nanowires with enhanced molecular oxygen activation for desulfurization. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhou X, Wang T, liu H, Zhang L, Zhang C, Kong N, Su D, Wang C. Design of S-scheme heterojunction catalyst based on structural defects for photocatalytic oxidative desulfurization application. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Li W, Chen K, Biney BW, Guo A, Liu H, Liu D. Hydrophobic and dispersible Cu(I) desulfurization adsorbent prepared from Pistia stratiotes for efficient desulfurization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 819:153056. [PMID: 35032532 DOI: 10.1016/j.scitotenv.2022.153056] [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: 10/28/2021] [Revised: 01/07/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Improving the adsorption capacity of adsorbents is a good way to boost their desulfurization efficiency. Optimizing the dispersion of metal nanoparticles and enhancing the stability of the metal valence state are essential to maximizing the adsorption capacity of the metal-loaded desulfurization adsorbent. Pistia stratiotes can absorb the Cu in water and evenly disperse it throughout the plant, allowing the production of a highly dispersed Cu(I) adsorbent (PSAC-Cu(I)). During the usage and storage of PSAC-Cu(I), Cu(I) oxidizes to Cu(II) when it comes in contact with oxygen and water, reducing its adsorptive capacity; hence, we modified PSAC-Cu(I) hydrophobically using polydimethylsiloxane (PDMS) to generate PSAC-Cu(I)-P(200). The outcome of the two-month exposure experiments showed that only 4.7% of the Cu(I) of PSAC-Cu(I)-P(200) was oxidized in the humid atmosphere, whereas PSAC-Cu(I) was almost fully oxidized. Moreover, the dibenzothiophene adsorption capacity of PSAC-Cu(I)-P(200) in a model oil with a water concentration of 250 ppmw is 68 mg g-1, which is 1.62 times that of PSAC-Cu(I). When 10 wt% toluene was added to the model oil, the adsorption desulfurization capacity of PSAC-Cu(I)-P(200) decreased to 86.8% of the original. This shows that PSAC-Cu(I)-P(200) has good stability and excellent adsorptive desulfurization performance.
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Affiliation(s)
- Weining Li
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, China
| | - Kun Chen
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, China.
| | - Bernard Wiafe Biney
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, China
| | - Aijun Guo
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, China.
| | - He Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, China
| | - Dong Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), 66 Changjiang West Road, Huangdao District, Qingdao, Shandong 266580, China
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Li W, Liang L, Li Y, Tian Y, Chen J, Chen S, Zhang J. Individual effects of different co-existing ions and polystyrene (PS) microplastics on the reactivity of sulfidated nanoscale zero-valent iron (S-nZVI) toward EDTA-chelated CdII removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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