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Vancea C, Mladin G, Ciopec M, Negrea A, Duteanu N, Negrea P, Mosoarca G, Ianasi C. Arsenic Removal Using Unconventional Material with Iron Content: Batch Adsorption and Column Study. TOXICS 2023; 11:849. [PMID: 37888699 PMCID: PMC10611127 DOI: 10.3390/toxics11100849] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/27/2023] [Accepted: 10/08/2023] [Indexed: 10/28/2023]
Abstract
The remediation of arsenic contamination in potable water is an important and urgent concern, necessitating immediate attention. With this objective in mind, the present study investigated arsenic removal from water using batch adsorption and fixed-bed column techniques. The material employed in this study was a waste product derived from the treatment of groundwater water for potable purposes, having a substantial iron composition. The material's properties were characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier-transformed infrared spectroscopy (FT-IR). The point of zero charge (pHPZC) was measured, and the pore size and specific surface area were determined using the BET method. Under static conditions, kinetic, thermodynamic, and equilibrium studies were carried out to explore the influencing factors on the adsorption process, namely the pH, contact time, temperature, and initial arsenic concentration in the solution. It was found that the adsorption process is spontaneous, endothermic, and of a physical nature. In the batch adsorption studies, the maximum removal percentage was 80.4% after 90 min, and in a dynamic regime in the fixed-bed column, the efficiency was 99.99% at a sludge:sand = 1:1 ratio for 380 min for a volume of water with arsenic of ~3000 mL. The kinetics of the adsorption process conformed to a pseudo-second-order model. In terms of the equilibrium studies, the Sips model yielded the most accurate representation of the data, revealing a maximum equilibrium capacity of 70.1 mg As(V)/g sludge. For the dynamic regime, the experimental data were fitted using the Bohart-Adams, Thomas, and Clark models, in order to establish the mechanism of the process. Additionally, desorption studies were conducted, serving as an essential step in validating the practical applicability of the adsorption process, specifically in relation to the reutilization of the adsorbent material.
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Affiliation(s)
- Cosmin Vancea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Georgiana Mladin
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Mihaela Ciopec
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Adina Negrea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Narcis Duteanu
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Petru Negrea
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Giannin Mosoarca
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (C.V.); (G.M.); (A.N.); (N.D.); (P.N.)
| | - Catalin Ianasi
- “Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazul, No. 24, 300223 Timisoara, Romania;
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Saqib M, Solomonenko AN, Barek J, Dorozhko EV, Korotkova EI, Aljasar SA. Graphene derivatives-based electrodes for the electrochemical determination of carbamate pesticides in food products: A review. Anal Chim Acta 2023; 1272:341449. [PMID: 37355324 DOI: 10.1016/j.aca.2023.341449] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/26/2023]
Abstract
Graphene (GR) composites have great potential for the determination of carbamates pesticides (CPs) by electrochemical methods. Since the beginning of the 20th century, GR has shown remarkable promise as electrode material for various sensors. The contamination of food products with harmful CPs is a major problem as they do not always damage human health immediately, but can be harmful after prolonged exposure. A range of advantages can be gained from their electrochemical determination, such as high sensitivity, reasonably selectivity, rapid detection, low limit of detection, and easy electrode fabrication. Furthermore, these electrochemical techniques are robust, reproducible, user-friendly, and conform to both "green" and "white" analytical chemistry. This review is focused on results published in the last ten years in the field of electrochemical determination of CPs in food products using GR and its derivatives.
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Affiliation(s)
- Muhammad Saqib
- Chemical Engineering Department, School of Earth Sciences and Engineering, National Research Tomsk Polytechnic University, Lenin Ave. 30, 634050, Tomsk, Russia; Charles University, Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Hlavova 8/2030, CZ 128 43, Prague 2, Czech Republic
| | - Anna N Solomonenko
- Chemical Engineering Department, School of Earth Sciences and Engineering, National Research Tomsk Polytechnic University, Lenin Ave. 30, 634050, Tomsk, Russia
| | - Jiří Barek
- Charles University, Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Hlavova 8/2030, CZ 128 43, Prague 2, Czech Republic.
| | - Elena V Dorozhko
- Chemical Engineering Department, School of Earth Sciences and Engineering, National Research Tomsk Polytechnic University, Lenin Ave. 30, 634050, Tomsk, Russia
| | - Elena I Korotkova
- Chemical Engineering Department, School of Earth Sciences and Engineering, National Research Tomsk Polytechnic University, Lenin Ave. 30, 634050, Tomsk, Russia
| | - Shojaa A Aljasar
- Physics and Engineering Department, National Research Tomsk State University, Lenin Ave. 36, 634045, Tomsk, Russia
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Song W, Gao Z, Tan F, Cheng X, Yang T, Wu D, Yang J, Liang H. Calcium sulfite oxidation activated by ferrous iron integrated with membrane filtration for removal of typical algal contaminants. CHEMOSPHERE 2023; 333:138956. [PMID: 37209855 DOI: 10.1016/j.chemosphere.2023.138956] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/28/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
Oxidation treatment of algae-laden water may cause cells rupture and emission of intracellular organics, thus restricting its further popularization. As a moderate oxidant, calcium sulfite could be slowly released in the liquid phase, thus exhibiting a potential to maintain the cells integrity. To this end, calcium sulfite oxidation activated by ferrous iron was proposed integrated with ultrafiltration (UF) for removal of Microcystis aeruginosa, Chlorella vulgaris and Scenedesmus quadricauda. The organic pollutants were significantly eliminated, and the repulsion between algal cells was obviously weakened. Through fluorescent components extraction and molecular weights distribution analyses, the degradation of fluorescent substances and the generation of micromolecular organics were verified. Moreover, the algal cells were dramatically agglomerated and formed larger flocs under the premise of maintaining high cell integrity. The terminal normalized flux was ascended from 0.048 to 0.072 to 0.711-0.956, and the fouling resistances were extraordinarily decreased. Due to the distinctive spiny structure and minimal electrostatic repulsion, Scenedesmus quadricauda was easier to form flocs, and its fouling was more readily mitigated. The fouling mechanism was remarkably altered through postponing the formation of cake filtration. The membrane interface characteristics including microstructures and functional groups firmly proved the fouling control efficiency. The reactive oxygen species (i.e., SO4•- and 1O2) generated through the principal reactions and Fe-Ca composite flocs played dominant roles in alleviating membrane fouling. Overall, the proposed pretreatment exhibits a brilliant application potential for enhancing UF in algal removal.
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Affiliation(s)
- Wenxin Song
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, PR China
| | - Zhimin Gao
- Design & Research Institute, The First Company of China Eighth Engineering Bureau Ltd, Jinan, 250100, PR China
| | - Fengxun Tan
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, PR China
| | - Xiaoxiang Cheng
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, PR China; Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan, 250101, PR China.
| | - Tao Yang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen, 529020, PR China.
| | - Daoji Wu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, PR China; Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan, 250101, PR China
| | - Jingxin Yang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, 510006, PR China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
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Patel B, Gundaliya R, Desai B, Shah M, Shingala J, Kaul D, Kandya A. Groundwater arsenic contamination: impacts on human health and agriculture, ex situ treatment techniques and alleviation. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:1331-1358. [PMID: 35962925 DOI: 10.1007/s10653-022-01334-5] [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: 08/24/2021] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Groundwater is consumed by a large number of people as their primary source of drinking water globally. Among all the countries worldwide, nations in South Asia, particularly India and Bangladesh, have severe problem of groundwater arsenic (As) contamination so are on our primary focus in this study. The objective of this review study is to provide a viewpoint about the source of As, the effect of As on human health and agriculture, and available treatment technologies for the removal of As from water. The source of As can be either natural or anthropogenic and exposure mediums can either be air, drinking water, or food. As-polluted groundwater may lead to a reduction in crop yield and quality as As enters the food chain and disrupts it. Chronic As exposure through drinking water is highly associated with the disruption of many internal systems and organs in the human body including cardiovascular, respiratory, nervous, and endocrine systems, soft organs, and skin. We have critically reviewed a complete spectrum of the available ex situ technologies for As removal including oxidation, coagulation-flocculation, adsorption, ion exchange, and membrane process. Along with that, pros and cons of different techniques have also been scrutinized on the basis of past literatures reported. Among all the conventional techniques, coagulation is the most efficient technique, and considering the advanced and emerging techniques, electrocoagulation is the most prominent option to be adopted. At last, we have proposed some mitigation strategies to be followed with few long and short-term ideas which can be adopted to overcome this epidemic.
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Affiliation(s)
- Bhavi Patel
- Department of Civil Engineering, School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India
| | - Rohan Gundaliya
- Department of Civil Engineering, School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India
| | - Bhavya Desai
- Department of Civil Engineering, School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India
| | - Manan Shah
- Department of Chemical Engineering School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India.
| | - Jainish Shingala
- School of Petroleum Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India
| | - Daya Kaul
- Department of Civil Engineering, School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India
| | - Anurag Kandya
- Department of Civil Engineering, School of Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat, India
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Maheswari P, Mohan DR, Krishnan AH, Sivaramakrishnan R, Pugazhendhi A. Impact of nano-ZnO consolidated poly (ether ether sulfone) nano filtration membrane for evacuation of hazardous metal particles. CHEMOSPHERE 2022; 297:134024. [PMID: 35227743 DOI: 10.1016/j.chemosphere.2022.134024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/06/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Industrial wastewater contains heavy metals, colors, dyes, cyanides, and natural manufactured compounds are expanding around the world. It prompts extreme water shortage just as water quality issues. With enhancing worldwide interest for clean and reestablish water for human utilization. Wastewater treatment with membrane innovation is arising as a main cycle to address the issues. In this current work, we have found the expulsion of dangerous metal particles utilizing a nano-ZnO (0.5 wt%) incorporated poly (ether ether sulfone) (PEES) nanofiltration membrane. The created membranes were reviewed by ATR-FTIR, AFM, SEM investigations, XRD, contact angle estimation, mechanical properties, pure water flux, porosity and molecular weight cut-off, arsenic, fluoride, and nitrate rejection studies were illustrated. Because of the hydrophilic nature of ZnO, the resultant membranes had better hydrophilicity than PEES membranes based on porosity, water content, surface chemistry, membrane morphology, and contact angle data. The Nano-ZnO incorporated membrane demonstrated a superior quality execution contrasted with neat PEES membrane. We discovered that the rejection of As(III) and As (V) were > 85% and > 98% separately, and an expanded permeability of 559.28 ± 2 Lm-2 h-1 and 297.95 ± 2 Lm-2 h-1 individually was seen at pH 10. Fluoride and nitrate particles additionally indicated the most extreme expulsion efficiencies were > 89% and > 75% separately. The prepared membrane samples were incubated in water (40 °C) and sodium hypochlorite solution (active chlorine concentration 400 mg/L) for up to 10 days to determine the stability of polymer membrane matrix. The general outcomes inferred that the nano-ZnO incorporated PEES membrane gave remarkable result to eliminate dangerous metal ions with moderate permeability.
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Affiliation(s)
- Purushothaman Maheswari
- Department of Chemistry, SRM Valliammai Engineering College, Katankulathur, Chennai, 603203, Tamil Nadu, India.
| | - Doraiswamy Raju Mohan
- Membrane Laboratory, Department of Chemical Engineering, Anna University, Chennai, 600025, Tamil Nadu, India
| | - Adhikesavan Hari Krishnan
- Department of Chemistry, School of Arts and Science, AV Campus, Vinayaka Missions Research Foundation, Chennai, 603104, Tamil Nadu, India
| | - Ramachandran Sivaramakrishnan
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Arivalagan Pugazhendhi
- College of Medical and Health Science, Asia University, Taichung, Taiwan; School of Renewable Energy, Maejo University, Chiang Mai 50290, Thailand.
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Highly efficient As(III) removal through simultaneous oxidation and adsorption by N-CQDs modified MIL-53(Fe). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120409] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Biological As(III) Oxidation Coupled with As(V) Interception by Fibrous Anion Exchange Material FFA-1. WATER 2022. [DOI: 10.3390/w14060856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A combined process, including As(III) oxidation and As removal by the fibrous anion exchange material FFA-1, was established to treat arsenite ([As(III)] = 10 mg L−1)-polluted groundwater. Both fixed-bed reactors (R1 and R2) were separately filled with pozzolana and FFA-1. After 72 h of inoculation and 10 days of operation, As(III) oxidation efficiency reached around 100% and the total As in the effluent was below 10 µg L−1 for over 100 days. Then, the combined system was stopped and a desorption experiment on the FFA-1 collected from R2 was carried out. The results revealed that the As trapped by the FFA-1 was distributed linearly along the axial length of R2, and the maximum capacity for removal of the FFA-1 from R2 was about 28 mg As g−1 FFA-1. Moreover, the anions’ competing test showed that they were preferentially sequestrated by the FFA-1 according to the following order: SO42− > PO43− ≈ AsO43− > NO3− at neutral pH. Furthermore, the microorganisms attached to the FFA-1, including some arsenite-oxidizing microorganisms (AsOBs), could be a beneficial complement to the As(III) oxidation and, thus, the total As removal. At the same time, the regeneration test proved that the As(V) interception capacity of FFA-1 was barely affected by the presence of biofilm. Additionally, the calculated operating cost showed that this combined process has great potential for the remediation of As-polluted groundwater.
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Kavitha E, Poonguzhali E, Nanditha D, Kapoor A, Arthanareeswaran G, Prabhakar S. Current status and future prospects of membrane separation processes for value recovery from wastewater. CHEMOSPHERE 2022; 291:132690. [PMID: 34715105 DOI: 10.1016/j.chemosphere.2021.132690] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 10/05/2021] [Accepted: 10/23/2021] [Indexed: 05/05/2023]
Abstract
Resource constraints and deteriorating environment have made it necessary to look for intensification of the industrial processes, to recover value from spent streams for reuse. The development of reverse osmosis has already established that water can be recovered from aqueous streams in a cost-effective and beneficial manner to the industries. With the development of several membrane processes and membrane materials, the possibility of recovering value from the effluents looks like a workable proposition. In this context, the potentialities of the different membrane processes in value recovery are presented. Among the pressure-driven processes, reverse osmosis can be used for the recovery of water as value. Nanofiltration has been used for the recovery of several dyes including crystal violet, congo red, methyl blue, etc., while ultrafiltration has been used in the fractionation of different solute species using membranes of different pore-size characteristics. Diffusion dialysis is found useful in the separation of acids from its salt solutions. Bipolar membrane electrodialysis has the potential to regenerate acid and base from salt solutions. Thermally driven membrane distillation can provide desalinated water, besides reducing the temperature of hot discharge streams. Passive membrane processes such as supported liquid membranes and membrane-assisted solvent extraction have been found useful in separating minor components from the wastewater streams. The details are discussed to drive home that membrane processes can be useful to achieve the objectives of value recovery, in a cost-effective manner through process intensification, as they are more compact and individual streams can be treated and value used seamlessly.
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Affiliation(s)
- E Kavitha
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, 603 203, Chengalpattu District, Tamil Nadu, India
| | - E Poonguzhali
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, 603 203, Chengalpattu District, Tamil Nadu, India
| | - D Nanditha
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, 603 203, Chengalpattu District, Tamil Nadu, India
| | - Ashish Kapoor
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, 603 203, Chengalpattu District, Tamil Nadu, India.
| | - G Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620 015, Tamil Nadu, India
| | - S Prabhakar
- Department of Chemical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, 603 203, Chengalpattu District, Tamil Nadu, India
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García FE, Litter MI, Sora IN. Assessment of the Arsenic Removal From Water Using Lanthanum Ferrite. ChemistryOpen 2021; 10:790-797. [PMID: 34352155 PMCID: PMC8342224 DOI: 10.1002/open.202100065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 07/09/2021] [Indexed: 11/09/2022] Open
Abstract
The catalytic performance of a perovskite-type lanthanum ferrite LaFeO3 to remove arsenic from water has been investigates for the first time. LaFeO3 was prepared by citrate auto-combustion of dry gel obtained from a solution of the corresponding nitrates poured into citric acid solution. Kinetic studies were performed in the dark with As(V) and in the dark and under UV-C irradiation at pH 6-7 with As(III) (both 1 mg L-1 ), and As : Fe molar ratios (MR) of 1 : 10 and 1 : 100 using the LaFeO3 catalyst. As(V) was removed from solution after 60 min in the dark in 7 % and in 47 % for MR=1 : 10 and MR=1 : 100, respectively, indicating the importance of the amount of the iron material on the removal. Oxidation of As(III) in the dark was negligible after 60 min in contact with the solid sample, but complete removal of As(III) was observed within 60 min of irradiation at 254 nm, due to As(III) photooxidation to As(V) and to As(III) sorption to a minor extent. Morphological and microstructural studies of the catalyst complement the catalytic testing. This work demonstrates that LaFeO3 can be used for the removal of As(III) from highly arsenic contaminated water.
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Affiliation(s)
- Fabiana E. García
- División Química de la Remediación AmbientalGerencia Química, CAC, CNEA, CONICETAv. Gral. Paz 14991650San MartínProv. de Buenos AiresArgentina
| | - Marta I. Litter
- IIIA (CONICET-UNSAM)Universidad Nacional de General San MartínCampus MigueleteAv. 25 de Mayo y Francia1650San MartínProv. de Buenos AiresArgentina
| | - Isabella Natali Sora
- INSTM R.U. and Department of Engineering and Applied SciencesUniversity of Bergamoviale Marconi 524044Dalmine (BG)Italy
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Zeng XC, Xu Y, He Z, Wang Y, Chen X. A powerful arsenite-oxidizing biofilm bioreactor derived from a single chemoautotrophic bacterial strain: Bioreactor construction, long-term operations and kinetic analysis. CHEMOSPHERE 2021; 273:129672. [PMID: 33524754 DOI: 10.1016/j.chemosphere.2021.129672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 09/13/2020] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
Microbial oxidation of As(III) by biofilm bioreactors followed by adsorption is a promising and environment friendly approach to remediate As(III) contaminated groundwater; however, poor activity, stability and expandability of the bioreactors hampered their industrious applications. To resolve this issue, we constructed a new biofilm bioreactor using a powerful chemoautotrophic As(III)-oxidizing bacterium Rhizobium sp. A219. This strain has strong ability to form biofilms and possesses very high As(III)-oxidizing activities in both planktonic and biofilm forms. Perlites were used as the biofilm carriers. Long-term operations suggest that the bioreactor has very high efficiency, stability and scalability under different geochemical conditions, and it is cheap and easy to construct and operate. During the operations, it is only required to supply air, nothing else. All the common contaminants in groundwater slightly affected the bioreactor As(III)-oxidizing activity. The common contaminants in groundwater can be largely removed through assimilation by the bacterial cells as nutrition. The bioreactor completely oxidize 1.0, 5.0, 10.0, 20.0 and 30.0 mg/L As(III) in 12, 18, 20, 25 and 30 min, respectively. Approximately 18, 18, 12, 12 and 21 min were needed to oxidize 1.1 mg/L As(III) at 20, 25, 30, 35 and 40 °C, respectively. The bioreactor works well under the pH values of 5-8, and the most optimal was 7.0. The data suggest that this bioreactor possesses the highest efficiency and stability, and thus has the great potential for industrial applications among all the described As(III)-oxidizing bioreactors derived from a single bacterium.
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Affiliation(s)
- Xian-Chun Zeng
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, 430070, People's Republic of China.
| | - Yifan Xu
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, 430070, People's Republic of China
| | - Zhong He
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, 430070, People's Republic of China
| | - Yanxin Wang
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, 430070, People's Republic of China
| | - Xiaoming Chen
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, 430070, People's Republic of China
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Baruah J, Chaliha C, Kalita E, Nath BK, Field RA, Deb P. Modelling and optimization of factors influencing adsorptive performance of agrowaste-derived Nanocellulose Iron Oxide Nanobiocomposites during remediation of Arsenic contaminated groundwater. Int J Biol Macromol 2020; 164:53-65. [PMID: 32679332 DOI: 10.1016/j.ijbiomac.2020.07.113] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/24/2020] [Accepted: 07/10/2020] [Indexed: 12/07/2022]
Abstract
Nanocellulose Iron Oxide Nanobiocomposites (NIONs) were synthesized from rice husk and sugarcane bagasse derived nanocelluloses for adsorptive removal of arsenic and associated contaminants present in groundwater samples. These NIONSs were superparamagnetic, hence magnetically recoverable and demonstrated promising recyclability. Synthesis of NIONs was confirmed by Transmission electron microscopy (TEM), X-Ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopic (XPS). FTIR and XPS data together with adsorption kinetics provide insights into probable adsorption mechanism of Arsenic by NIONs. The experimental conditions for 10 different variants were modelled using response surface methodology (RSM) based on central composite design (CCD), considering the parameters; adsorbate dosage, adsorbent dosage, pH and contact time. The results identified the best performing variants and the optimal conditions for maximal absorption (~99%). These results were validated using a three-layer feed-forward Multilayer Perceptron (MLP) based Artificial Neural Network (ANN) model. Both RSM and ANN chemometric models were in close conformity for optimized conditions of highest adsorption by specific variants. The standardized conditions were used to expand the study to field-based arsenic contaminated groundwater samples and their performance to commercial adsorbents. NIONs show promising commercial potential for water remediation applications due to their high adsorptive performance, magnetic recoverability and recyclability.
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Affiliation(s)
- J Baruah
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam 784028, India; Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India
| | - C Chaliha
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam 784028, India
| | - E Kalita
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam 784028, India.
| | - B K Nath
- Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam 784028, India
| | - R A Field
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
| | - P Deb
- Department of Physics, Tezpur University, Tezpur, Assam 784028, India
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12
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Application of Hybrid Membrane Processes Coupling Separation and Biological or Chemical Reaction in Advanced Wastewater Treatment. MEMBRANES 2020; 10:membranes10100281. [PMID: 33066241 PMCID: PMC7602016 DOI: 10.3390/membranes10100281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 02/01/2023]
Abstract
The rapid urbanization and water shortage impose an urgent need in improving sustainable water management without compromising the socioeconomic development all around the world. In this context, reclaimed wastewater has been recognized as a sustainable water management strategy since it represents an alternative water resource for non-potable or (indirect) potable use. The conventional wastewater remediation approaches for the removal of different emerging contaminants (pharmaceuticals, dyes, metal ions, etc.) are unable to remove/destroy them completely. Hybrid membrane processes (HMPs) are a powerful solution for removing emerging pollutants from wastewater. On this aspect, the present paper focused on HMPs obtained by the synergic coupling of biological and/or chemical reaction driven processes with membrane processes, giving a critical overview and particular emphasis on some case studies reported in the pertinent literature. By using these processes, a satisfactory quality of treated water can be achieved, permitting its sustainable reuse in the hydrologic cycle while minimizing environmental and economic impact.
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13
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Removal of arsenic from water using iron-doped phosphorene nanoadsorbents: A theoretical DFT study with solvent effects. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112958] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Arsenic removal from arsenic-containing copper and cobalt slag using alkaline leaching technology and MgNH4AsO4 precipitation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116422] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Wu Y, Liu Y, Chen R, Zhang WH, Ge Q. A pH-responsive supramolecular draw solute that achieves high-performance in arsenic removal via forward osmosis. WATER RESEARCH 2019; 165:114993. [PMID: 31442760 DOI: 10.1016/j.watres.2019.114993] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 07/05/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
A pH-responsive, charge switchable piperazine derivative, 1,4-bis(3-propane- sulphonate sodium)-piperazinediethanesulfonic acid disodium-sulfate (4), has been designed via a stepwise synthesis and proposed as a draw solute to remove arsenics (AsIII, AsV) from water through forward osmosis (FO). Having multiple sulfonic groups, 4 generates a high osmotic pressure and produces a water flux as high as 58.4 LMH at a dilute concentration (0.24 M), surpassing most of the existing draw solutes in water transfer rate under the similar experimental conditions. Compound 4 at 0.24 M yields a water flux of 52.9 LMH with a 100% AsV rejection, and 57.8 LMH with a 96.0% AsIII rejection when 50 ppm AsV or AsIII as the corresponding feed, manifesting the best performance in arsenic removal and concurrent water recovery efficiency. Remarkably, being a polymeric configuration in water, 4 has a negligible solute loss in the FO process. 4 can be readily regenerated for reuse in FO by precipitation from its solution through acidification. The abundance in ionic groups and the pH-responsive property coupled with a supramolecular configuration make 4 an ideal draw solute for FO wastewater treatment.
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Affiliation(s)
- Yanhuang Wu
- College of Environment and Resources, Fuzhou University, No.2 Xueyuan Road, Fujian, 350116, PR China
| | - Yan Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou Industrial Park, Suzhou, 215123, PR China
| | - Rongzhen Chen
- College of Environment and Resources, Fuzhou University, No.2 Xueyuan Road, Fujian, 350116, PR China
| | - Wen-Hua Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, No.199 Renai Road, Suzhou Industrial Park, Suzhou, 215123, PR China
| | - Qingchun Ge
- College of Environment and Resources, Fuzhou University, No.2 Xueyuan Road, Fujian, 350116, PR China.
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16
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Mukherjee T, Ghosh G, Mukherjee R, Das TK. Study of arsenic (III) removal by monolayer protected silver nanoadsorbent and its execution on prokaryotic system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 244:440-452. [PMID: 31153032 DOI: 10.1016/j.jenvman.2019.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 04/18/2019] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
This work deals with the removal of arsenic by nanoadsorbent from aqueous environment that is subsequently applied to the biological system for the evaluation of its efficiency. We started our aspiration by the modification of carboxylate functionalized silver nanoparticle (nanoadsorbent) fabrication process. Batch mode arsenic uptake study by the nanoadsorbent was conducted considering several altering parameters and the reactants in addition to products were evaluated by several analytical techniques for the interpretation of the interaction mechanism. It was found nanoadsorbent, Ag@MSA is an efficient system for the exclusion of arsenic (III) from the aqueous system and due to the alteration in the ratio of silver content and protective agent, the characteristic profile of silver nanoparticles with an average diameter of 15 nm also became changed in respect of reported results. Here the low pH range (4-6) favors the interaction between nanoparticle and arsenic and it was found that the interaction was chemical in nature through adsorption or complex formation with surface carboxylate groups of the protecting agent (MSA). Following the interaction, a successful removal of arsenic (III) was achieved at a percentage of 94.16 with an initial concentration of 45 mg/L and equilibrium time of 60 min. Hence nanoparticles were executed against the toxic effect of arsenic in E. coli, an important gut microbe of higher animals, for the restoration of bacterial growth in arsenic pre-removed media. In this context the validation of this removal efficiency against arsenic induced toxicity was proved through several morphological studies, degree of oxidative damages and other biochemical attributes.
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Affiliation(s)
- Triparna Mukherjee
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, India
| | - Gargi Ghosh
- Department of Molecular Biology and Biotechnology, University of Kalyani, Kalyani, 741235, India
| | - Riya Mukherjee
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, India
| | - Tapan Kumar Das
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, India.
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17
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Zhu Y, Fan W, Zhou T, Li X. Removal of chelated heavy metals from aqueous solution: A review of current methods and mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 678:253-266. [PMID: 31075592 DOI: 10.1016/j.scitotenv.2019.04.416] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 04/23/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
Water contamination with heavy metal ions and organic compounds such as citrate, ethylenediaminetetraacetic acid, tartrate, pharmaceuticals, surfactants and natural organic matter, is a serious problem in the natural environment. Although many methods have been effectively applied to the removal of heavy metal complexes from aqueous solution, there is a lack of information available on the mechanisms, advantages and disadvantages of these various methods. This review summarizes the various treatment methods applied to the removal of heavy metal complexes, with a summary of the mechanisms of action and recent research progress. The methods reviewed in detail include electrolysis, membrane separation, adsorption, precipitation, replacement-coprecipitation, TiO2 photocatalysis and Fenton oxidation-precipitation, with the advantages and disadvantages of each method discussed. Furthermore, the heavy metal complex removal mechanisms are analyzed comprehensively. Results show that the adsorption method exhibited unique merits, showing much promise for future development. Finally, this review comprehensively analyzes future prospects and developments in methods for removal of chelated heavy metals.
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Affiliation(s)
- Ying Zhu
- School of Space and Environment, Beihang University, No. 37, XueYuan Road, HaiDian District, Beijing 100191, PR China
| | - Wenhong Fan
- School of Space and Environment, Beihang University, No. 37, XueYuan Road, HaiDian District, Beijing 100191, PR China; Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing 100191, PR China.
| | - Tingting Zhou
- School of Space and Environment, Beihang University, No. 37, XueYuan Road, HaiDian District, Beijing 100191, PR China
| | - Xiaomin Li
- School of Space and Environment, Beihang University, No. 37, XueYuan Road, HaiDian District, Beijing 100191, PR China
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18
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Tang SY, Qiu YR. Selective separation of copper and zinc and regeneration of polymer from electroplating effluent using shear induced dissociation coupling with ultrafiltration. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0310-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Bahmani P, Maleki A, Rezaee R, Mahvi AH, Khamforoush M, Dehestani Athar S, Daraei H, Gharibi F, McKay G. Arsenate removal from aqueous solutions using micellar-enhanced ultrafiltration. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2019; 17:115-127. [PMID: 31297206 PMCID: PMC6582139 DOI: 10.1007/s40201-018-00332-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/10/2018] [Indexed: 12/07/2022]
Abstract
In this study, arsenate (As-V) removal using micellar enhanced ultrafiltration (MEUF) modified by cationic surfactants was studied by a dead-end polyacrylonitrile (PAN) membrane apparatus. The UF membrane has been produced by a phase inversion process. The prepared membrane was characterized and analyzed for morphology and membrane properties. The influence of operating parameters such as initial concentrations of As-V, surfactants, pH, membrane thickness, and co-existing anions on the removal of As-V, surfactant rejection, and permeate flux have been studied. The experimental results show that from the two different cationic surfactants used the CPC (cetyl-pyridinium chloride) efficiency (91.7%) was higher than that of HTAB (hexadecyltrimethyl-ammonium bromide) (83.7%). The highest As-V removal was 100%, and was achieved using initial feed concentrations of 100-1000 μg/L, at pH 7 with a membrane thickness of 150 μm in a dead-end filtration system. This efficiency for As-V removal was similar to that obtained using a cross-flow system. Nevertheless, this flux reduction was less than the reduction achieved in the dead-end filtration process. The PAN fabricated membrane in comparison to the RO and NF processes selectively removed the arsenic and the anions, in the water taken from the well, and had no substantial effect on the cations.
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Affiliation(s)
- Pegah Bahmani
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Afshin Maleki
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Reza Rezaee
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Amir Hossein Mahvi
- Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Saeed Dehestani Athar
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Hiua Daraei
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Fardin Gharibi
- Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Gordon McKay
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
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20
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Yu X, Wei Y, Liu C, Ma J, Liu H, Wei S, Deng W, Xiang J, Luo S. Ultrafast and deep removal of arsenic in high-concentration wastewater: A superior bulk adsorbent of porous Fe 2O 3 nanocubes-impregnated graphene aerogel. CHEMOSPHERE 2019; 222:258-266. [PMID: 30708160 DOI: 10.1016/j.chemosphere.2019.01.130] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/17/2019] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Bulk adsorbents for fast and deep removal of arsenic in water is highly demanded for practical treatment process, especially fixed-bed column process. In this study, a superior bulk adsorbent of porous Fe2O3 nanocubes-impregnated porous graphene aerogel (PGA/PFe2O3) is prepared using a simple template engineering. The maximum capacity for As(III) and As(V) reaches as high as 172.27 and 217.34 mg g-1 of Fe2O3, respectively. The adsorption equilibrium times of As(III) and As(V) on PGA/PFe2O3 are only 30 and 5 min, respectively (m/V = 0.5 g L-1, C0 = 5 mg L-1). Significantly, the high concentrations of As(III) and As(V) can be reduced below 10 μg L-1 within only 60 and 5 min, respectively. The aerogel is conducive to fast diffusion of arsenic and porous Fe2O3 nanocubes provide abundant adsorption sites. Moreover, the adsorbent exhibits an outstanding reusability. The adsorbent also shows a strong anti-interference to aquatic environment. A real realgar tailing wastewater (C0 = 3.076 mg L-1 for As(III) and 3.225 mg L-1 for As(V)) can be deep treated (below 10 μg L-1) within 4 h (m/V = 0.6 g L-1). The bulk adsorbent of PGA/PFe2O3 presents a high column treatment capacity of arsenic-containing groundwater (4750 BV for As(III), 5730 BV for As(V)), producing only 12 BV eluent. This work develops a superior bulk adsorbent for large-scale treatment of arsenic-containing wastewater.
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Affiliation(s)
- Xingwen Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China
| | - Yuanfeng Wei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China
| | - Chengbin Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China.
| | - Jianhong Ma
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China
| | - Hui Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China
| | - Shudan Wei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China
| | - Wei Deng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China.
| | - Jiannan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China
| | - Shenglian Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China
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21
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Kamde K, Dahake R, Pandey RA, Bansiwal A. Integrated bio-oxidation and adsorptive filtration reactor for removal of arsenic from wastewater. ENVIRONMENTAL TECHNOLOGY 2019; 40:1337-1348. [PMID: 29283032 DOI: 10.1080/09593330.2017.1422547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
Recently, removal of arsenic from different industrial effluent discharged using simple, efficient and low-cost technique has been widely considered. In this study, removal of arsenic (As) from real wastewater has been studied employing modified bio-oxidation followed by adsorptive filtration method in a novel continuous flow through the reactor. This method includes biological oxidation of ferrous to ferric ions by immobilized Acidothiobacillus ferrooxidans bacteria on granulated activated carbon (GAC) in fixed bed bio-column reactor with the adsorptive filtration unit. Removal efficiency was optimized regarding the initial flow rate of media and ferrous ions concentration. Synthetic wastewater sample having different heavy metal ions such as Arsenic (As), Cobalt (Co), Chromium (Cr), Copper (Cu), Iron (Fe), Lead (Pb) and Manganese (Mn) were also used in the study. The structural and surface changes occurring after the treatment process were scrutinized using FT-IR and Scanning Electron Microscopy (SEM) analysis. The finding showed that not only arsenic can be removed considerably in the bioreactor system, but also removing efficiency was much more (<90%) for other heavy metals in real wastewater sample. The results from TCPL test confirms that solid spent media was non-hazardous and can be safely disposed of. This study verified that combination of bio-oxidation with adsorptive filtration method improves the removal efficiency of arsenic and other heavy metal ions in wastewater sample.
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Affiliation(s)
- Kalyani Kamde
- a Environmental Biotechnology Division CSIR-National Environmental Engineering Research Institute , Nagpur , Maharashtra , India
| | - Rashmi Dahake
- b Environmental Material Division , CSIR-National Environmental Engineering Research Institute , Nagpur , Maharashtra , India
| | - R A Pandey
- a Environmental Biotechnology Division CSIR-National Environmental Engineering Research Institute , Nagpur , Maharashtra , India
| | - Amit Bansiwal
- b Environmental Material Division , CSIR-National Environmental Engineering Research Institute , Nagpur , Maharashtra , India
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22
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Removal of Cd (II) from dilute aqueous solutions by complexation–ultrafiltration using rotating disk membrane and the shear stability of PAA–Cd complex. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.06.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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23
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Zhang W, Zhang G, Liu C, Li J, Zheng T, Ma J, Wang L, Jiang J, Zhai X. Enhanced removal of arsenite and arsenate by a multifunctional Fe-Ti-Mn composite oxide: Photooxidation, oxidation and adsorption. WATER RESEARCH 2018; 147:264-275. [PMID: 30315994 DOI: 10.1016/j.watres.2018.10.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/18/2018] [Accepted: 10/01/2018] [Indexed: 06/08/2023]
Abstract
In order to attain a high-efficiency and low-cost adsorbent for both arsenate (As(V)) and arsenite (As(III)) removal from As-contaminated water, a novel nanostructured Fe-Ti-Mn composite oxide (FTMO) was fabricated through a one-step simultaneous oxidation and co-precipitation method. Batch control experiments and series of spectroscopy detection technologies were carried out to investigate the surface change of the FTMO adsorbent and the respective role of Fe, Ti and Mn content in the arsenic adsorption process. The results showed that the FTMO adsorbent had a high adsorption capacity for both As(V) and As(III) (especially for the latter one) via the formation of inner-sphere complexes at the water/oxide interface under both darkness and light conditions. The material could effectively oxidize As(III) to As(V) and light illumination could further apparently enhance the As(III) oxidation, thus achieving high adsorption efficiency of As(III). Combined with the characterizations from FTIR, ESR and XPS, it was assumed that the predominant As(III) removal mechanism could be attributed to the coupling of various processes including photooxidation, oxidation and adsorption. The Ti and Mn contents were dominant for the As(III) oxidation, while the Fe content mainly played an important role for the adsorption of newly formed As(V). However, the involvement of surface hydroxyl groups and the formation of inner-sphere surface complexes were primarily responsible for the As(V) adsorption mechanism. Moreover, the successful removal of arsenic from real water matrices made the FTMO a potentially attractive adsorbent for both As(V) and As(III) removal.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China
| | - Gaosheng Zhang
- Collaborative Innovation Center of Water Quality Safety and Protection in Pearl River Delta, Guangzhou University, Guangzhou, 510006, China
| | - Caihong Liu
- Key Laboratory of Ecological Environment of Ministry of Education of Three Gorges Reservoir Area, School of Urban Construction and Environmental Engineering, Chongqing University, Chongqing, 400045, China
| | - Juan Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China
| | - Tong Zheng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China.
| | - Lu Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China.
| | - Jin Jiang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China
| | - Xuedong Zhai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, China
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24
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Chen M, Shafer-Peltier K, Randtke SJ, Peltier E. Modeling arsenic (V) removal from water by micellar enhanced ultrafiltration in the presence of competing anions. CHEMOSPHERE 2018; 213:285-294. [PMID: 30227309 DOI: 10.1016/j.chemosphere.2018.09.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 06/08/2023]
Abstract
With increasing arsenic (As) contamination incidents reported around the world, better processes for As removal from industrial wastewater and other contaminated waters are required to protect drinking water sources. Complexation of As with cetylpyridinium chloride (CPC) cationic surfactant micelles, coupled with ultrafiltration (UF), has the potential to improve As removal, but competition from other anions could be a limiting factor. Using a binary-system ion-exchange model, the selectivity coefficients for binding of the monovalent and divalent forms of arsenate (As (V)) to cationic cetylpyridinium (CP+) micelles, relative to Cl-, were determined to be 0.55 for H2AsO4- and 0.047 mol L-1 for HAsO42-, respectively. The affinity sequence for binding of commonly occurring monovalent anions by CP+ micelles was found to be NO3- > Cl- > HCO3- > H2AsO4-, and for divalent anions, SO42- > HAsO42-. Distribution of As (V) between the micellar and aqueous phases was explored using ion exchange isotherms, with higher pH and lower concentrations of competing anions increasing rejection of As (V) across UF membranes. A model accounting for these effects, based on mass balances across UF membranes and selectivity coefficients for binding of anions to the CP+ micelles, was used to predict As (V) removal during micellar-enhanced ultrafiltration (MEUF) of mixtures of competing anions. Model predictions agreed well with experiment results for both artificial and spiked natural river water samples. Arsenic (≈0.1 mM) removals of 91% and 84% were achieved from artificial waters and spiked natural river waters, respectively, by adding 20 mM CPC prior to UF.
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Affiliation(s)
- Ming Chen
- Department of Civil, Environmental and Architectural Engineering, University of Kansas, Lawrence, KS, 66045, USA; Tertiary Oil Recovery Program, University of Kansas, Lawrence, KS, 66045, USA
| | | | - Stephen J Randtke
- Department of Civil, Environmental and Architectural Engineering, University of Kansas, Lawrence, KS, 66045, USA
| | - Edward Peltier
- Department of Civil, Environmental and Architectural Engineering, University of Kansas, Lawrence, KS, 66045, USA.
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25
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Selective separation of α- and β-cyclodextrins by complexation/ultrafiltration using supra molecular host-guest interaction. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.04.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Eslami H, Ehrampoush MH, Esmaeili A, Ebrahimi AA, Salmani MH, Ghaneian MT, Falahzadeh H. Efficient photocatalytic oxidation of arsenite from contaminated water by Fe 2O 3-Mn 2O 3 nanocomposite under UVA radiation and process optimization with experimental design. CHEMOSPHERE 2018; 207:303-312. [PMID: 29803879 DOI: 10.1016/j.chemosphere.2018.05.106] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/16/2018] [Accepted: 05/18/2018] [Indexed: 05/28/2023]
Abstract
The efficiency of photocatalytic oxidation process in arsenite (As(III)) removal from contaminated water by a new Fe2O3-Mn2O3 nanocomposite under UVA radiation was investigated. The effect of nanocomposite dosage, pH and initial As(III) concentration on the photocatalytic oxidation of As(III) were studied by experimental design. The synthesized nanocomposite had a uniform and spherical morphological structure and contained 49.83% of Fe2O3 and 29.36% of Mn2O3. Based on the experimental design model, in photocatalytic oxidation process, the effect of pH was higher than other parameters. At nanocomposite concentrations of more than 12 mg L-1, pH 4 to 6 and oxidation time of 30 min, photocatalytic oxidation efficiency was more than 95% for initial As(III) concentration of less than 500 μg L-1. By decreasing pH and increasing the nanocomposite concentration, the photocatalytic oxidation efficiency was increased. Furthermore, by increasing the oxidation time from 10 to 240 min, in addition to oxidation of As(III) to arsenate (As(V)), the residual As(V) was adsorbed on the Fe2O3-Mn2O3 nanocomposite and total As concentration was decreased. Therefore, Fe2O3-Mn2O3 nanocomposite as a bimetal oxide, at low doses and short time, can enhance and improve the efficiency of the photocatalytic oxidation and adsorption of As(III) from contaminated water resources. Furthermore, the energy and material costs of the UVA/Fe2O3-Mn2O3 system for photocatalytic oxidation of 1 mg L-1 As(III) in the 1 L laboratory scale reactor was 0.0051 €.
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Affiliation(s)
- Hadi Eslami
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Mohammad Hassan Ehrampoush
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Abbas Esmaeili
- Department of Environmental Health Engineering, School of Health, Rafsanjan University of Medical Sceiences, Rafsanjan, Iran.
| | - Ali Asghar Ebrahimi
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Mohammad Hossein Salmani
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Mohammad Taghi Ghaneian
- Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Hossein Falahzadeh
- Department of Biostatistics and Epidemiology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Biaduń E, Nowak N, Kowalska J, Miecznikowski K, Krasnodębska-Ostręga B. Organic matter decomposition before arsenic speciation analysis of water sample - "Soft decomposition" using nano-photocatalysts. CHEMOSPHERE 2018; 207:481-488. [PMID: 29807347 DOI: 10.1016/j.chemosphere.2018.05.085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/09/2018] [Accepted: 05/14/2018] [Indexed: 06/08/2023]
Abstract
The applicability of photolysis in the speciation analysis of arsenic is investigated. The use of nano scale semiconductors (Fe2O3/WO3/Fe2O3 at pH 6) as an active film during solar light irradiation of a water sample, containing some surfactants (SDS), results in the simplification of the organic matter and gives no speciation change in the arsenic. The reproducibility of active layer is shown to be high and the surface roughness of each photoactive sample and photocurrent do not differ by more than 6 and less than 8%, respectively. The procedure of sample pretreatment caused a minimum (8-10%) amount of speciation change, whilst the irradiation is no longer that 2 h. The study indicates that "soft decomposition" can be performed for as long as 4 h, and still give photostable arsenates (III) and methylarsenate species. However, the saturation of the water sample with Ar is required (to reduce the oxygen content) for the longer the decomposition time being applied.
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Affiliation(s)
- Ewa Biaduń
- Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093, Warsaw, Poland
| | - Natalia Nowak
- Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093, Warsaw, Poland
| | - Joanna Kowalska
- Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093, Warsaw, Poland
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Rivas BL, Urbano BF, Sánchez J. Water-Soluble and Insoluble Polymers, Nanoparticles, Nanocomposites and Hybrids With Ability to Remove Hazardous Inorganic Pollutants in Water. Front Chem 2018; 6:320. [PMID: 30109224 PMCID: PMC6079269 DOI: 10.3389/fchem.2018.00320] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 07/10/2018] [Indexed: 11/13/2022] Open
Abstract
The polymeric materials have presented a great development in adsorption processes for the treatment of polluted waters. The aim of the current review is to present the recent developments in this field of study by examining research of systems like functional water-soluble polymers and water-soluble polymer-metal complexes coupled to ultrafiltration membranes for decontamination processes in liquid-liquid phase. Noticing that a water-soluble polymer can be turned into insoluble compounds by setting a crosslinking point, connecting the polymer chains leading to polymer resins suitable for solid-liquid extraction processes. Moreover, these crosslinked polymers can be used to develop more complex systems such as (nano)composite and hybrid adsorbents, combining the polymers with inorganic moieties such as metal oxides. This combination results in novel materials that overcome some drawbacks of each separated components and enhance the sorption performance. In addition, new trends in hybrid methods combining of water-soluble polymers, membranes, and electrocatalysis/photocatalysis to remove inorganic pollutants have been discussed in this review.
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Affiliation(s)
- Bernabé L Rivas
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Bruno F Urbano
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Julio Sánchez
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago, Santiago, Chile
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Zhang W, Liu C, Zheng T, Ma J, Zhang G, Ren G, Wang L, Liu Y. Efficient oxidation and sorption of arsenite using a novel titanium(IV)-manganese(IV) binary oxide sorbent. JOURNAL OF HAZARDOUS MATERIALS 2018; 353:410-420. [PMID: 29702456 DOI: 10.1016/j.jhazmat.2018.04.034] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/26/2018] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
Owing to the high toxicity and mobility, the removal of arsenite (As(III)) is significantly more difficult than arsenate (As(V)), thus representing a major challenge in arsenite-contaminated water treatment. For efficient elimination of As(III), we successfully fabricated a novel Ti-Mn binary oxide via a simultaneous oxidation and coprecipitation process. The amorphous oxide was aggregated from nanosized particles with a high specific surface area of 349.5 m2/g. It could effectively oxidize As(III) to As(V) and had a high As(III) sorption capacity of 107.0 mg/g. As(III) sorption occurred rapidly and equilibrium was achieved within 24 h. The kinetic data was well fitted by the pseudo-second-order equation, indicating a chemical sorption process. The material was almost independent upon the presence of competitive ions. The As(III) removal by the sorbent is a combined process coupled oxidation with sorption, where the MnO2 content is mainly responsible for oxidizing As(III) to As(V) and the formed As(V) is then adsorbed onto the surface of amorphous TiO2 content, through replacing the surface hydroxyl group or the adsorbed As(III) and forming inner-sphere surface complexes. Furthermore, the arsenic-containing oxide could be effectively regenerated and reused. The bi-functional sorbent could be used as a potentially attractive sorbent for As(III) removal in drinking water treatment and environmental remediation.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
| | - Caihong Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
| | - Tong Zheng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China.
| | - Gaosheng Zhang
- Collaborative Innovation Center of Water Quality Safety and Protection in Pearl River Delta, Guangzhou University, Guangzhou 510006, China.
| | - Guohui Ren
- China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Lu Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
| | - Yulei Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China
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30
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Shahid MK, Phearom S, Choi YG. Synthesis of magnetite from raw mill scale and its application for arsenate adsorption from contaminated water. CHEMOSPHERE 2018; 203:90-95. [PMID: 29614414 DOI: 10.1016/j.chemosphere.2018.03.150] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/12/2018] [Accepted: 03/20/2018] [Indexed: 06/08/2023]
Abstract
The magnetite particles were chemically synthesized from the waste of hot rolling steel industry. The characterization of the synthesized magnetite was done by using Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The synthesized magnetite particles were used for the adsorptive removal of arsenate from the contaminated water. The maximum adsorption capacity of 7.69 mg was found on the surface of 1 g of the magnetite. The point of zero charge for magnetite is determined at the pH 6. The adsorption capacity of magnetite particles was successfully restored with alkali cleaning. Newly synthesized particles were found to be effective for arsenate removal up to 5 times with regeneration. The synthesis of magnetite from raw mill scale and its application for arsenate adsorption is a cost effective and ecofriendly process.
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Affiliation(s)
- Muhammad Kashif Shahid
- Department of Environmental & Chemical Convergence Engineering, Daegu University, Daegudae-ro 201, Jillyang, Gyeongsan, Gyeongbuk, Republic of Korea
| | - San Phearom
- Department of Environmental Engineering, Chungnam National University, Daejeon, Republic of Korea
| | - Young-Gyun Choi
- Department of Environmental Engineering, Chungnam National University, Daejeon, Republic of Korea.
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Nasir AM, Goh PS, Ismail AF. Novel synergistic hydrous iron-nickel-manganese (HINM) trimetal oxide for hazardous arsenite removal. CHEMOSPHERE 2018; 200:504-512. [PMID: 29501887 DOI: 10.1016/j.chemosphere.2018.02.126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/13/2018] [Accepted: 02/21/2018] [Indexed: 05/24/2023]
Abstract
A novel hydrous iron-nickel-manganese (HINM) trimetal oxide was successfully fabricated using oxidation and coprecipitation method for metalloid arsenite removal. The atomic ratio of Fe:Ni:Mn for this adsorbent is 3:2:1. HINM adsorbent was identified as an amorphous nanosized adsorbent with particle size ranged from 30 nm to 60 nm meanwhile the total active surface area and pore diameter of HINM area of 195.78 m2/g and 2.43 nm, respectively. Experimental data of arsenite adsorption is best fitted into pseudo-second order and Freundlich isotherm model. The maximum adsorption capacity of arsenite onto HINM was 81.9 mg/g. Thermodynamic study showed that the adsorption of arsenite was a spontaneous and endothermic reaction with enthalpy change of 14.04 kJ/mol and Gibbs energy of -12 to -14 kJ/mol. Zeta potential, thermal gravimetric (TGA) and Fourier transform infrared (FTIR) analysis were applied to elucidate the mechanism of arsenite adsorption by HINM. Mechanism of arsenite adsorption by HINM involved both chemisorption and physisorption based on the electrostatic attraction between arsenite ions and surface charge of HINM. It also involved the hydroxyl substitution by arsenite ions through the formation of inner-sphere complex. Reusability of HINM trimetal oxide was up to 89% after three cycles of testing implied that HINM trimetal oxide is a promising and practical adsorbent for arsenite.
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Affiliation(s)
- A M Nasir
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia; Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
| | - P S Goh
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia; Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
| | - A F Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia; Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia.
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32
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Pan H, Hou H, Shi Y, Li H, Chen J, Wang L, Crittenden JC. High catalytic oxidation of As(III) by molecular oxygen over Fe-loaded silicon carbide with MW activation. CHEMOSPHERE 2018; 198:537-545. [PMID: 29428768 DOI: 10.1016/j.chemosphere.2018.01.116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 01/08/2018] [Accepted: 01/23/2018] [Indexed: 06/08/2023]
Abstract
The catalytic oxidation of arsenite (As(III)) to arsenate (As(V)) and the removal of arsenic (As) in an iron loaded silicon carbide (Fe/SiC) system under microwave (MW) irradiation were studied. Fe/SiC was synthesized by electro-deposition and its capability of activating molecular oxygen was also characterized. Highly efficient As(III) removal in a wide pH range of 2.5-9.5 was achieved, involving oxidation by reactive oxidation species (OH and O2-) induced by MW irradiation and adsorption by the generated Fe (hrdro)oxide precipitates. Significant enhancement of As(III) oxidation was achieved at acidic pH, where sequential fresh Fe(0) exposure with MW irradiation could improve the Fenton-like reactions and oxidation efficiency for As(III). As(III) removal was accelerated via adsorption at alkaline conditions, where the adsorbed Fe(II) on Fe/SiC showed significant catalytic activity for molecular oxygen and high pH further favored the formation of (hydro)oxides and the As sequestration by adsorption. Fe/SiC showed superior performance for the treatment of As in water with MW irradiation.
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Affiliation(s)
- Hong Pan
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, PR China
| | - Huijie Hou
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, PR China
| | - Yao Shi
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, PR China
| | - Hongbo Li
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, PR China
| | - Jing Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, PR China.
| | - Linling Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, PR China.
| | - John C Crittenden
- Brook Byers Institute for Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Lv E, Ding S, Lu J, Du L, Li Z, Li J, Zhang S, Ding J. An integrated process of catalytic hydrolysis and membrane separation for fatty acids production from lard oil. CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Enmin Lv
- College of Chemistry and Chemical Engineering; Shandong University of Technology; Zibo Shandong 255000 China
| | - Shaoxuan Ding
- College of Food Science and Engineering; Northwest A&F University; Xianyang 712100 China
| | - Jie Lu
- Department of Resources and Environmental Engineering; Shandong University of Technology; Zibo Shandong 255000 China
| | - Lixiong Du
- College of Chemistry and Chemical Engineering; Shandong University of Technology; Zibo Shandong 255000 China
| | - Zhuang Li
- College of Chemistry and Chemical Engineering; Shandong University of Technology; Zibo Shandong 255000 China
| | - Jianxin Li
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 China
| | - Shuguang Zhang
- College of Chemistry and Chemical Engineering; Shandong University of Technology; Zibo Shandong 255000 China
| | - Jincheng Ding
- College of Chemistry and Chemical Engineering; Shandong University of Technology; Zibo Shandong 255000 China
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34
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Zhao Y, Wang C, Wang S, Wang C, Liu Y, Al-Khalaf AA, Hozzein WN, Duan L, Li W, Zhao D. Magnetic mesoporous TiO2 microspheres for sustainable arsenate removal from acidic environments. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00588e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unique magnetic mesoporous TiO2 microspheres exhibit superior arsenate removal performance and high stability in acidic environments.
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Affiliation(s)
- Yujuan Zhao
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | - Changyao Wang
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | - Shuai Wang
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | - Chun Wang
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | - Yupu Liu
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | | | - Wael N. Hozzein
- Bioproducts Research Chair
- Zoology Department
- College of Science
- King Saud University
- Riyadh 11451
| | - Linlin Duan
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | - Wei Li
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
| | - Dongyuan Zhao
- Department of Chemistry
- Laboratory of Advanced Materials
- Shanghai Key Lab of Molecular Catalysis and Innovative Materials
- iChEM and State Key Laboratory of Molecular Engineering of Polymers
- Fudan University
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35
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Zhang J, Wei W, Lin S, Lu J, Hu Q. Study on the removal and transport and migration mechanism for As with activated sludge system. AMB Express 2017; 7:172. [PMID: 28905332 PMCID: PMC5597562 DOI: 10.1186/s13568-017-0478-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 09/05/2017] [Indexed: 11/22/2022] Open
Abstract
In this paper, the removal of As and the transport and migration of As at the process of activated sludge system was studied. The results showed that the activated sludge system has high removal efficiency for As, and the removal efficiency could be nearly 100%. The initial concentration of As has effect on the removal efficiency, and within the experimental scope, the increase of initial concentration of As improved the removal efficiency for As. The distribution of As in the surface and internal in activated sludge indicates that in the process of activated sludge, the As was first transferred from water to the surface of solid and was adsorbed by the surface and then transport to the interior of microbes and take part in some metabolisms of the microorganisms. The adsorption of As by activated sludge conforms to Freundlich adsorption isotherm, and the removal of As in activated sludge system follows to the pseudo second order reaction kinetics.
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36
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Preparation, characterization and application of PS/SPEES–PES UF membranes for removal of ppm Cd2+ from aqueous media. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-1979-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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