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Liu R, Zhou W, Yu D, Shang G, Zhou Y, Xu Z, Tang D, Cui H, Liao C. Spatial distribution and enrichment characteristics of selenium in paddy soil and rice around the Dongting Lake. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 359:124552. [PMID: 39009297 DOI: 10.1016/j.envpol.2024.124552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/06/2024] [Accepted: 07/12/2024] [Indexed: 07/17/2024]
Abstract
Selenium (Se) deficiency is a major global health issue. Given that the Dongting Lake region is a significant agricultural production area in China, its soil and geographical properties have a marked influence on Se accumulation in rice. Investigating these factors and their importance can provide technical guidance for the production of Se-rich rice locally and in other similar regions worldwide. Such studies can foster Se-enriched agricultural practices on a global scale, contributing to improved human health and environmental quality. Therefore, in this study, we investigated 15,403 paddy soil samples and their corresponding rice grains from the Dongting Lake area, by analyzing their Se content, spatial distribution, and bioaccumulation factor (BCF). The effects of parent materials, soil characteristics (physicochemical), and geographical factors on Se content in soil, rice grains, and BCF were also assessed. We found that the average Se content in the paddy soil of the Dongting Lake area was 0.43 mg/kg, which was 1.48 folds higher than the background Se content (0.29 mg/kg) in Chinese soil. The average Se content in rice grains was 0.059 mg/kg, surpassing the Chinese standard for Se-rich rice (0.04 mg/kg). Se distribution in the paddy soil and rice were the highest in the western and central regions and lowest in the eastern region. Se-enriched rice and Se-enriched rice fields are widely distributed in Dongting Lake area. Seven parent materials significantly influenced soil Se and BCF. Correlation analysis revealed positive correlations between soil Se and soil organic matter (SOM), zinc, altitude, and mean annual precipitation. BCF was positively correlated with pH and mean annual temperature. The Random Forest model highlighted that SOM played a pivotal role in soil Se enrichment, being the most influential factor for both soil and rice enrichment (RR type), whereas pH exerted the most significant influence on soil enrichment without rice enrichment (RN type).
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Affiliation(s)
- Rui Liu
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Weijun Zhou
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - De Yu
- College of Landscape Architecture and Art Design, Hunan Agricultural University, Changsha, 410128, China
| | - Guiduo Shang
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Yuzhou Zhou
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Zhangqian Xu
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Dou Tang
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Haojie Cui
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Chaolin Liao
- College of Resources, Hunan Agricultural University, Changsha, 410128, China.
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2
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Wang F, Zhang J, Xu L, Ma A, Zhuang G, Huo S, Zou B, Qian J, Cui Y. Selenium volatilization in plants, microalgae, and microorganisms. Heliyon 2024; 10:e26023. [PMID: 38390045 PMCID: PMC10881343 DOI: 10.1016/j.heliyon.2024.e26023] [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: 09/29/2023] [Revised: 01/12/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024] Open
Abstract
The augmented prevalence of Se (Se) pollution can be attributed to various human activities, such as mining, coal combustion, oil extraction and refining, and agricultural irrigation. Although Se is vital for animals, humans, and microorganisms, excessive concentrations of this element can give rise to potential hazards. Consequently, numerous approaches have been devised to mitigate Se pollution, encompassing physicochemical techniques and bioremediation. The recognition of Se volatilization as a potential strategy for mitigating Se pollution in contaminated environments is underscored in this review. This study delves into the volatilization mechanisms in various organisms, including plants, microalgae, and microorganisms. By assessing the efficacy of Se removal and identifying the rate-limiting steps associated with volatilization, this paper provides insightful recommendations for Se mitigation. Constructed wetlands are a cost-effective and environmentally friendly alternative in the treatment of Se volatilization. The fate, behavior, bioavailability, and toxicity of Se within complex environmental systems are comprehensively reviewed. This knowledge forms the basis for developing management plans that aimed at mitigating Se contamination in wetlands and protecting the associated ecosystems.
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Affiliation(s)
- Feng Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
- Institute of Agricultural Products Processing Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jie Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Ling Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
- Institute of Agricultural Products Processing Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Anzhou Ma
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Guoqiang Zhuang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Shuhao Huo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Bin Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jingya Qian
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yi Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
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3
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Huang J, Huang X, Jiang D. Phosphorus can effectively reduce selenium adsorption in selenium-rich lateritic red soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167356. [PMID: 37769720 DOI: 10.1016/j.scitotenv.2023.167356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/10/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
Phosphorus (P) application can improve the availability of selenium (Se) in soil, which benefits the output of Se-rich agricultural products. However, the mechanism by which P affects the adsorption of Se in Se-rich soil is still unclear. Therefore, this study took Se-rich lateritic red soil as the research object and studied the adsorption behavior of P and Se in the soil through batch adsorption tests and soil characterization technology. The results showed that the adsorption of P or Se in lateritic red soil increased with an increase in equilibrium concentration. The P or Se adsorption process was explained using the Langmuir and Freundlich isotherm models. After adding P, the adsorption of Se decreased from 276-423 mg/kg to 52-201 mg/kg at different initial Se concentrations. The scanning electron microscope and energy dispersive spectrometry (SEM-EDS) results showed that the lateritic red soil was rich in C, O, Fe, Al, and other elements, and the free oxidation states of these elements could efficiently facilitate the adsorption of P and Se. Fourier infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analyses indicated that both Se and P could react with ferrite groups in the soil to form iron-containing complexes, and there was a competitive adsorption phenomenon, which was the main reason for the decrease in Se adsorption. This study provides theoretical support for further exploring the effect of P on Se behavior in the geochemical cycle. Furthermore, it promotes the efficient use of Se-rich soil resources.
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Affiliation(s)
- Jinlan Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning 530004, Guangxi, China
| | - Xuejiao Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning 530004, Guangxi, China.
| | - Daihua Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning 530004, Guangxi, China
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Yuan Z, Su R, Ma X, Yu L, Pan Y, Chen N, Chernikov R, Cheung LKL, Deevsalar R, Tunc A, Wang L, Zeng X, Lin J, Jia Y. Direct immobilization of Se(IV) from acidic Se(IV)-rich wastewater via ferric selenite Co-precipitation. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132346. [PMID: 37611390 DOI: 10.1016/j.jhazmat.2023.132346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 08/25/2023]
Abstract
The attenuation of acidic Se(IV)-rich wastewater, including those associated with acid mine drainage (AMD) and nonferrous metallurgical wastewater (NMW), presents a serious environmental challenge. This study investigates the effects of diverse factors from pH values to Se(IV)/Fe(III) molar ratios, initial Se(IV) concentrations, and alkali neutralization agents on the direct co-precipitation of ferric selenites in AMD and NMW systems involving different orders of Fe(III) and alkali addition. Our results show that amorphous sulfate-substituted ferric (hydrogen) selenite and Se(IV)-bearing ferrihydrite-schwertmannite are the major Se(IV)-attenuation solids except that gypsum is an additional phase in the NMW system with Ca(OH)2 neutralization. Produced ferric selenites achieve 98-99.8% of Se(IV) immobilization under optimal conditions of pH 4.5, Se(IV)/Fe(III) molar ratios of 0.0625-0.5, and initial Se(IV) concentrations of 0.15-1.3 mmol·L-1. Moreover, completing FeSO4+ and FeHSeO32+/FeSeO3+ complexes as well as different ferric selenite co-precipitates are shown to collectively control aqueous Se(IV) remaining. Specifically, three distinct trends of aqueous Se(IV) concentrations separately correspond to changes in the four factors. The co-precipitation in the NMW system via pH adjustment followed by Fe(III) addition is more efficient for Se(IV) fixation than that in the AMD system because of minimal complexation, concurrent Fe(III) hydrolysis, and enhanced ferric selenite co-precipitation in the former.
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Affiliation(s)
- Zidan Yuan
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Rui Su
- College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China
| | - Xu Ma
- School of Environment and Resources, Dalian Minzu University, Dalian 116600, China
| | - Le Yu
- Specialized robotBG, Siasun Robot Automation Co., LTD, Shenyang 110168, China
| | - Yuanming Pan
- Department of Geological Sciences, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - Ning Chen
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon SK S7N 2V3, Canada
| | - Roman Chernikov
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon SK S7N 2V3, Canada
| | - Leo Ka Long Cheung
- Department of Geological Sciences, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - Reza Deevsalar
- Department of Geological Sciences, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - Ayetullah Tunc
- Department of Geological Sciences, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - Liang Wang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangfeng Zeng
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Jinru Lin
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
| | - Yongfeng Jia
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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Mladin G, Ciopec M, Negrea A, Duteanu N, Negrea P, Svera M Ianăşi P, Ianăşi C. Selenite Removal from Aqueous Solution Using Silica-Iron Oxide Nanocomposite Adsorbents. Gels 2023; 9:497. [PMID: 37367167 DOI: 10.3390/gels9060497] [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: 05/19/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 06/28/2023] Open
Abstract
In recent years, during industrial development, the expanding discharge of harmful metallic ions from different industrial wastes (such as arsenic, barium, cadmium, chromium, copper, lead, mercury, nickel, selenium, silver, or zinc) into different water bodies has caused serious concern, with one of the problematic elements being represented by selenium (Se) ions. Selenium represents an essential microelement for human life and plays a vital role in human metabolism. In the human body, this element acts as a powerful antioxidant, being able to reduce the risk of the development of some cancers. Selenium is distributed in the environment in the form of selenate (SeO42-) and selenite (SeO32-), which are the result of natural/anthropogenic activities. Experimental data proved that both forms present some toxicity. In this context, in the last decade, only several studies regarding selenium's removal from aqueous solutions have been conducted. Therefore, in the present study, we aim to use the sol-gel synthesis method to prepare a nanocomposite adsorbent material starting from sodium fluoride, silica, and iron oxide matrices (SiO2/Fe(acac)3/NaF), and to further test it for selenite adsorption. After preparation, the adsorbent material was characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The mechanism associated with the selenium adsorption process has been established based on kinetic, thermodynamic, and equilibrium studies. Pseudo second order is the kinetic model that best describes the obtained experimental data. Also, from the intraparticle diffusion study, it was observed that with increasing temperature the value of the diffusion constant, Kdiff, also increases. Sips isotherm was found to best describe the experimental data obtained, the maximum adsorption capacity being ~6.00 mg Se(IV) per g of adsorbent material. From a thermodynamic point of view, parameters such as ΔG0, ΔH0, and ΔS0 were evaluated, proving that the process studied is a physical one.
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Affiliation(s)
- Georgiana Mladin
- Faculty of Industrial Chemistry, Environmental Engineering, Polytechnic University of Timişoara, Victoriei Square no. 2, 300006 Timişoara, Romania
| | - Mihaela Ciopec
- Faculty of Industrial Chemistry, Environmental Engineering, Polytechnic University of Timişoara, Victoriei Square no. 2, 300006 Timişoara, Romania
| | - Adina Negrea
- Faculty of Industrial Chemistry, Environmental Engineering, Polytechnic University of Timişoara, Victoriei Square no. 2, 300006 Timişoara, Romania
| | - Narcis Duteanu
- Faculty of Industrial Chemistry, Environmental Engineering, Polytechnic University of Timişoara, Victoriei Square no. 2, 300006 Timişoara, Romania
| | - Petru Negrea
- Faculty of Industrial Chemistry, Environmental Engineering, Polytechnic University of Timişoara, Victoriei Square no. 2, 300006 Timişoara, Romania
| | - Paula Svera M Ianăşi
- National Institute for Research and Development in Electrochemistry and Condensed Matter, 144th Dr. A. P. Podeanu Street, 300569 Timisoara, Romania
| | - Cătălin Ianăşi
- "Coriolan Drăgulescu" Institute of Chemistry, Bv. Mihai Viteazul, No. 24, 300223 Timisoara, Romania
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6
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Wang T, Zhao H, Zhao X, Liu D. Construction of defective zirconium-based metal-organic frameworks for enhanced removal of toxic selenite: performance and mechanism studies. J Colloid Interface Sci 2023; 647:488-498. [PMID: 37271093 DOI: 10.1016/j.jcis.2023.05.159] [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: 02/20/2023] [Revised: 05/12/2023] [Accepted: 05/24/2023] [Indexed: 06/06/2023]
Abstract
The development of effective adsorbents for the adsorption and removal of toxic selenite (SeO32-) from wastewater is urgently required but challenging. Herein, formic acid (FA), a monocarboxylic acid, was used as a template to construct serial defective Zr-Fumarate (Fum) -FA based on a green and facile preparation method. Physicochemical characterization shows that the defect degree of Zr-Fum-FA can be flexibly controlled by regulating the amount of FA to be added. Owing to rich defect units, the diffusion and mass transfer of guest SeO32- into the channel can be boosted. Particularly, Zr-Fum-FA-6 with the most defects exhibits superior adsorption capacity (519.6 mg g-1) and rapid adsorption equilibrium (∼200 min). The adsorption isotherms and kinetics can be well described by the Langmuir and pseudo-second-order kinetic models. Moreover, this adsorbent possesses excellent resistance towards co-existing ions, high chemical stability and good applicability in a broad pH range of 3-10. Thus, our study provides a promising adsorbent for SeO32-, and more importantly, it proposes a strategy for rationally tailoring the adsorption behavior of adsorbents via defect construction.
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Affiliation(s)
- Ting Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huifang Zhao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xudong Zhao
- College of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030012, China.
| | - Dahuan Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; College of Chemical Engineering, Qinghai University, Xining 810016, China.
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7
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Chen Z, Zhang P, Brown KG, van der Sloot HA, Meeussen JCL, Garrabrants AC, Wang X, Delapp RC, Kosson DS. Impact of oxidation and carbonation on the release rates of iodine, selenium, technetium, and nitrogen from a cementitious waste form. JOURNAL OF HAZARDOUS MATERIALS 2023; 449:131004. [PMID: 36821900 DOI: 10.1016/j.jhazmat.2023.131004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/24/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Evaluation of the long-term retention mechanisms and potential release rates for the primary constituents of potential concern (COPCs) (i.e., Tc, I, Se, and nitrate) is necessary to determine if Cast Stone, a radioactive waste form, can meet performance objectives under near-surface disposal scenarios. Herein, a mineral and parameter set accounting for the solubility of I and Se in Cast Stone was developed based on pH-dependent and monolithic diffusion leaching test results, to extend a geochemical speciation model previously developed. The impact of oxidation and carbonation as environmental aging processes on the retention properties of Cast Stone for primary COPCs was systematically estimated. Physically, the effective diffusion coefficients of 4 COPCs in Cast Stone were increased after carbonation and/or oxidation, reflecting an increase in permeability to diffusion. Chemically, i) pH & pe conditions in the original Cast Stone were favorable for the stabilization of Tc, but not for I, Se, and N; ii) oxidation (with/without carbonation) of Cast Stone changed the pe & pH conditions to be detrimental for Tc stabilization; and iii) carbonation (with/without oxidation) of Cast Stone modified the pH & pe conditions to be beneficial for the stabilization of I (in system with Ag added) and Se.
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Affiliation(s)
- Zhiliang Chen
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States
| | - Peng Zhang
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States; Shanghai Shaanxi Coal Hi-tech Research Institute Co., Ltd., Shanghai 201613, China
| | - Kevin G Brown
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States
| | - Hans A van der Sloot
- Hans van der Sloot Consultancy, Glenn Millerhof 29, 1628 TS Hoorn, the Netherlands
| | | | - Andrew C Garrabrants
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States
| | - Xinyue Wang
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States
| | - Rossane C Delapp
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States
| | - David S Kosson
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States.
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8
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Gong C, Zhang J, Ren X, He C, Han J, Zhang Z. A comparative study of electrocoagulation treatment with iron, aluminum and zinc electrodes for selenium removal from flour production wastewater. CHEMOSPHERE 2022; 303:135249. [PMID: 35691397 DOI: 10.1016/j.chemosphere.2022.135249] [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: 03/28/2022] [Revised: 05/20/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Electrocoagulation (EC) using iron (Fe), zinc (Zn) and aluminum (Al) electrodes was comparatively applied in the treatment of selenium (Se) in flour production (FP) wastewater. It was indicated that EC treatment with Fe anode obtained highest removal efficiency (79.1%) for Se in the 90 min treatment in the comparative study, which could be attributed to the superior adsorption capacity of in-situ generated iron flocs. Removal of Se resulted from electrodeposition and adsorption to in-situ generated flocs in EC treatment, and the operational conditions significantly influenced the Se removal performance in this work. The results showed the acidic condition and higher current density favored EC treatment on Se removal, EC removed up to 97.8% of Se at pH 4 under 15 mA cm-2, whereas it obtained 83.5% and 50.4% of removal efficiency at pH 7 and 10, respectively. There was competitive adsorption in the process of selenium removal, as the in-situ generated flocs effectively removed 35.6% of humic acid-like (HA-like) substance in FP wastewater after 90 min treatment. The FTIR results showed that HA-like substance mainly contained the protein water hydrogen bond, carboxylate COO antisymmetric stretching and other functional groups. Through the analysis of existence of Se in flocs and wastewater, it can be found that approximately 2.8%-3.92% of Se was removed by electrodeposition process. This study illustrated the Se removal mechanism and provided constructive suggestion for food manufacturing to the metal removal and utilization of advanced treatment.
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Affiliation(s)
- Chenhao Gong
- Institute of Resource and Environment, Beijing Academy of Science and Technology, No. 1 Gao Li Zhang Road, Beijing, 100095, China.
| | - Jian Zhang
- Institute of Resource and Environment, Beijing Academy of Science and Technology, No. 1 Gao Li Zhang Road, Beijing, 100095, China
| | - Xiaojing Ren
- Institute of Resource and Environment, Beijing Academy of Science and Technology, No. 1 Gao Li Zhang Road, Beijing, 100095, China
| | - Can He
- Institute of Resource and Environment, Beijing Academy of Science and Technology, No. 1 Gao Li Zhang Road, Beijing, 100095, China
| | - Junxing Han
- Institute of Resource and Environment, Beijing Academy of Science and Technology, No. 1 Gao Li Zhang Road, Beijing, 100095, China
| | - Zhongguo Zhang
- Institute of Resource and Environment, Beijing Academy of Science and Technology, No. 1 Gao Li Zhang Road, Beijing, 100095, China.
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9
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Lin W, Wu P, Li R, Li J, Cai Y, Yuan L, Feng W. Novel triazine-based cationic covalent organic polymers for highly efficient and selective removal of selenate from contaminated water. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129127. [PMID: 35580496 DOI: 10.1016/j.jhazmat.2022.129127] [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: 01/27/2022] [Revised: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Selenium (Se) removal from contaminated water has become a major environmental problem in recent years. Designing efficient and selective materials for selenium adsorption is urgent and still represents a great challenge. Herein, two novel cationic covalent triazine frameworks (CTFS-Cl and CTFL-Cl) are developed for the first time and employed as a new class of Se adsorbents. The results from systematic adsorption experiments indicate that these materials can adsorb SeO42- in a wide range of pH values (2-11) with fast kinetics (5 min), outstanding adsorption capacity, and excellent selectivity over other competing anions. The maximum adsorption capacity achieved (149.3 mg/g by CTFS-Cl) constitutes one of the highest values among the organic polymeric materials. More importantly, after a single step adsorption, these materials can reduce the Se concentrations to lower than 10 μg/L, the lowest drinking water standard in the world. The adsorption mechanism was probed by XPS technique, EDS analysis, adsorption experiments, and DFT calculations, which reveals that anion exchange between Cl- and SeO42- is the main driving force for Se adsorption. Additionally, CTFS-Cl and CTFL-Cl perform well toward real contaminated river water sample with the residual Se being less than 8.49 μg/L. This work demonstrates the excellent performance of CTFs-based materials with great application prospect for Se removal in contaminated water treatment.
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Affiliation(s)
- Wenxia Lin
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Pengcheng Wu
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Rongfei Li
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jihong Li
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yimin Cai
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Lihua Yuan
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wen Feng
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China.
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10
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An investigation of Re(VII) and Se(IV) adsorption by Tamusu clay: effect of time, pH, ionic strength, temperature and organic acids. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08443-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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11
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Boussouga YA, Than H, Schäfer AI. Selenium species removal by nanofiltration: Determination of retention mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154287. [PMID: 35248638 DOI: 10.1016/j.scitotenv.2022.154287] [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: 12/29/2021] [Revised: 02/28/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Selenium (Se) is a dissolved oxyanion drinking water contaminant requiring appropriate removal technologies. The removal of selenite (SeIV) and selenite (SeVI) with nanofiltration (NF) was investigated with an emphasis on the role of Se speciation and membrane charge screening on the retention mechanisms. The pH (2 to 12) showed strong pH dependence of Se retention, which was due to the speciation. No significant impact of salinity was observed by increasing NaCl concentration from 0.58 to 20 g/L. Application of the Donnan steric pore partitioning model with dielectric exclusion (DSPM-DE) showed that Donnan exclusion was the dominant retention mechanism for the oxyanions Se species. Nine different organic matter (OM) types were investigated at 10 mgC/L to determine if OM affects Se retention. Only OM characterised by negatively charged fractions, such as humic acid (HA), enhanced Se retention with NF270 of up to 20% for SeIV and 10% for SeVI. This was explained by enhanced Donnan exclusion. NF270 was effective in removing Se from real water (Gahard groundwater, Ille et Vilaine, France). The EU guideline (20 μg/L) of Se in drinking water was achieved with comparable performance to OM-free experiments using synthetic waters.
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Affiliation(s)
- Youssef-Amine Boussouga
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Hieu Than
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Andrea I Schäfer
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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12
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Synthesis of cellulose fibers/Zeolite-A nanocomposite as an environmental adsorbent for organic and inorganic selenium ions; Characterization and advanced equilibrium studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119573] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Li T, Xu H, Zhang Y, Zhang H, Hu X, Sun Y, Gu X, Luo J, Zhou D, Gao B. Treatment technologies for selenium contaminated water: A critical review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 299:118858. [PMID: 35041898 DOI: 10.1016/j.envpol.2022.118858] [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: 10/26/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Selenium is an indispensable trace element for humans and other organisms; however, excessive selenium in water can jeopardize the aquatic environment. Investigations on the biogeochemical cycle of selenium have shown that anthropogenic activities such as mining, refinery, and coal combustion mainly contribute to aquatic selenium pollution, imposing tremendous risks on ecosystems and human beings. Various technologies thus have been developed recently to treat selenium contaminated water to reduce its environmental impacts. This work provides a critical review on the applications, characteristics, and latest developments of current treatment technologies for selenium polluted water. It first outlines the present status of the characteristics, sources, and toxicity of selenium in water. Selenium treatment technologies are then classified into three categories: 1) physicochemical separation including membrane filtration, adsorption, coagulation/precipitation, 2) redox decontamination including chemical reduction and catalysis, and 3) biological transformation including microbial treatment and constructed wetland. Details of these methods including their overall efficiencies, applicability, advantages and drawbacks, and latest developments are systematically analyzed and compared. Although all these methods are promising in treating selenium in water, further studies are still needed to develop sustainable strategies based on existing and new technologies. Perspectives on future research directions are laid out at the end.
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Affiliation(s)
- Tianxiao Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Hongxia Xu
- Key Laboratory of Surficial Geochemistry of Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing, 210023, People's Republic of China.
| | - Yuxuan Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Hanshuo Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Xin Hu
- State Key Laboratory of Analytical Chemistry for Life Science, Center of Material Analysis and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Yuanyuan Sun
- Key Laboratory of Surficial Geochemistry of Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Xueyuan Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Jun Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA
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14
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Thermodynamic Study of Phosphate Adsorption and Removal from Water Using Iron Oxyhydroxides. WATER 2022. [DOI: 10.3390/w14071163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Iron oxyhydroxides (FeOOHs) appear to be the optimal group of materials among inorganic adsorbents for the removal of phosphates from water, providing significant adsorption capacities. This research work presents a thermodynamic study of phosphate adsorption by examining five different FeOOHs sorbent nanomaterials. The otablebtained results indicated that the adsorption process in these cases was spontaneous. When the experiments were performed using distilled water, akageneite (GEH), schwertmannite, and tetravalent manganese feroxyhyte (AquAsZero), displaying ΔH° values of 31.2, 34.7, and 7.3 kJ/mole, respectively, presented an endothermic adsorption process, whereas for goethite (Bayoxide) and lepidocrocite, with ΔH° values of −11.4 and −7.7 kJ/mole, respectively, the adsorption process proved to be exothermic. However, when an artificial (according to NSF) water matrix was used, GEH, schwertmannite, lepidocrocite, and AquAsZero presented ΔH° values of 13.2, 3.3, 7.7, and 3.3 kJ/mole, respectively, indicative of an endothermic process, while only for Bayoxide, with ΔH° of −17 kJ/mole, the adsorption remained exothermic. The adsorption enthalpy values generally decreased with the NSF water matrix, probably due to the competition for the same adsorption sites by other co-existing anions as well to the possible formation of soluble phosphate complexes with calcium; however, an overall positive effect on the uptake of phosphates was observed.
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15
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El-Wakeel ST, Abdel-Karim A, Ismail SH, Mohamed GG. Development of Ag-dendrites @Cu nanostructure for removal of selenium (IV) from aqueous solution. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10713. [PMID: 35470523 DOI: 10.1002/wer.10713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 02/19/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Removal of selenite (Se (IV)) from wastewater is vital due to its more toxic and mobile properties. In this study, a novel dendritic silver-dendrites@ copper with hierarchical side-branches were synthesized through a two-pot rapid, facile, and green precipitation route. Characterization of the dendrites by transmission electron microscope (TEM), scanning electron microscope (SEM), dynamic light scattering (DLS), and X-ray diffraction spectroscopy (XRD) confirmed the proper preparation of dendritic AgCu nanostructure. Significantly, the Ag@Cu nanostructure has high specific surface area (150 m2 /g) and excellent adsorption activity toward selenite. The adsorption rate of Se (IV) on the dendritic AgCu reaches 94% within 60 min under normal adsorption procedures. Both adsorption kinetics and isotherms have been described well by the pesudo-second order model and Langmuir model, respectively. The noticeable high adsorption capabilities can mainly accredit to the effect of the hierarchical side-branched structure. Therefore, the dendritic AgCu nanostructure has a room of treating heavy metals-contaminated industrial wastewater streams. PRACTITIONER POINTS: Silver-dendrites@ copper with hierarchical side-branches were synthesized through a rapid and green precipitation route using copper nanoparticles. The prepared nanostructure was applied for Se (IV) adsorption at varying operational conditions (contact time, pH, and dose). High adsorption capacity for Se (IV) up to 173.1 mg/g was achieved using the prepared nanoparticles applying Langmuir isotherm model.
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Affiliation(s)
| | - Ahmed Abdel-Karim
- Water Pollution Research Department, National Research Centre, Giza, Egypt
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Manchester, UK
| | - Sameh H Ismail
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, Sheikh Zayed Campus, 6th October City, Giza, Egypt
| | - Gehad G Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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16
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Zoroufchi Benis K, McPhedran KN, Soltan J. Selenium removal from water using adsorbents: A critical review. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127603. [PMID: 34772553 DOI: 10.1016/j.jhazmat.2021.127603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/05/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
Selenium (Se) has become an increasingly serious water contamination concern worldwide. It is an essential micronutrient for humans and animals, however, can be extremely toxic if taken in excess. Sorption can be an effective treatment for Se removal from a wide range of water matrices. However, despite the synthesis and application of numerous adsorbents for remediation of aqueous Se, there has been no comprehensive review of the sorption capacities of various natural and synthesized sorbents. Herein, literature from 2010 to 2021 considering Se remediation using 112 adsorbents has been critically reviewed and presented in several comprehensive tables including: clay minerals and waste materials (presented in Table 1); zero-valent iron, iron oxides, and binary iron-based adsorbents (Table 2); other metals-based adsorbents (Table 3); carbon-based adsorbents (Table 4); and other adsorbents (Table 5). Each of these tables, and their relevant sections, summarizes preparation/modification methods, sorption capacities of various Se adsorbents, and proposed model/mechanisms of adsorption. Furthermore, future perspectives have been provided to assist in filling noted research gaps for the development of efficient Se adsorbents for real-world applications. This review will help in preliminary screening of various sorbent media to set up Se treatment technologies for a variety of end-users worldwide.
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Affiliation(s)
- Khaled Zoroufchi Benis
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Global Institute for Water Security, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Kerry N McPhedran
- Department of Civil, Geological & Environmental Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Global Institute for Water Security, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
| | - Jafar Soltan
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Global Institute for Water Security, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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17
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Long H, Gu P, Jin G, Su H. Preparation of diatomite supported calcium ferrite ternary magnetic material and its adsorption of selenite in aqueous solution. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Tsuchiya K, Fuchida S, Tokoro C. Investigation on Removal Performance of Multi-Element Using Layered Double Hydroxide Produced from Magnesium Oxide and Ferrous Iron. KAGAKU KOGAKU RONBUN 2021. [DOI: 10.1252/kakoronbunshu.47.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kosuke Tsuchiya
- Graduate School of Creative Science and Engineering, Waseda University
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Filip J, Vinter Š, Čechová E, Sotolářová J. Materials interacting with inorganic selenium from the perspective of electrochemical sensing. Analyst 2021; 146:6394-6415. [PMID: 34596173 DOI: 10.1039/d1an00677k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Inorganic selenium, the most common form of harmful selenium in the environment, can be determined using electrochemical sensors, which are compact, fast, reliable and easy-to-operate devices. Despite progress in this area, there is still significant room for developing high-performance selenium electrochemical sensors. To achieve this, one should take into account (i) the electrochemical process that selenium undergoes on the electrode; (ii) the valence state of selenium species in the sample and (iii) modification of the sensor surface by a material with high affinity to selenium. The goal of this review is to provide a knowledge base for these issues. After the Introduction section, mechanisms and principles of the electrochemical reduction of selenium are introduced, followed by a section introducing the modification of electrodes with materials interacting with selenium and a section dedicated to speciation methods, including the reduction of non-detectable Se(VI) to detectable Se(IV). In the following sections, the main types of materials (metallic, polymers, hybrid (nano)materials…) interacting with inorganic selenium (mostly absorbents) are reviewed to show the diversity of properties that may be endowed to sensors if the materials were to be used for the modification of electrodes. These features for the main material categories are outlined in the conclusion section, where it is stated that the engineered polymers may be the most promising modifiers.
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Affiliation(s)
- Jaroslav Filip
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Štěpán Vinter
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Erika Čechová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Jitka Sotolářová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
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20
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Li Q, Bao X, Chen P, Jiao Y, Gu S. Available acid consumption capacity of sediments in six water bodies in the Yangtze River Basin in China. WATER RESEARCH 2021; 203:117565. [PMID: 34418643 DOI: 10.1016/j.watres.2021.117565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 07/27/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Acid-base reactivity is a fundamental property of sediments and is responsible for sediments' multiple roles in aquatic ecosystems. However, little information currently exists about the composition, magnitude, and change of the available acid consumption capacity (AACC) of sediments. To optimize reaction conditions, we developed operational procedures to determine AACC using base titration to recover surplus acid in suspensions. We characterized the sediment AACC of Dianchi Lake (DL), Daduhe River (DR), Tuojiang River (TR), Honghu Lake (HL), Wuhan Donghu Lake (DhL), and Taihu Lake (TL) in the Yangtze River Basin, China. The procedure demonstrated that reacting 40 mL 0.1 M HCl with fresh sediments equivalent to 1.0 g dry weight for 4 h and recovering surplus acid in the suspension by NaOH titration to an endpoint pH of 3.0 could determine sediment AACC. Sediment AACC in the Yangtze River Basin had high regional variability. The mean magnitude of AACC among sites was ranked DL > DR > DhL > TR > HL > TL, which is extremely similar to their geographical location from the upper to lower reaches of the Yangtze River Basin. Qualitative results from acid titration curves showed that more components contributed to AACC in DL, DR, TR, and DhL sediments than to those in HL and TL sediments. The correlation between AACC and the total amount of multivalent cations released indicated that AACC depended significantly on labile acid-soluble minerals that contain multivalent cations (Fe3+, Fe2+, Ca2+, Al3+, Mg2+, and Mn2+) (p < 0.01). Based on the contribution percentages of multivalent cations to AACC, sediment AACC of six water bodies were divided into two types: Ca-Mg dominated (DL, DR, and TR) and Fe-Al dominated (HL, DhL, and TL). We suggest that sediment AACC complexing with pH can contribute to a better description of the acid-base characteristics of sediments.
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Affiliation(s)
- Qingman Li
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China
| | - Xu Bao
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China; University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Peng Chen
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China; College of Fisheries and Life Sciences, Dalian Ocean University, Dalian 116023, China
| | - Yang Jiao
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China
| | - Sen Gu
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, 430072 Wuhan, China.
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21
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Ali I, Shrivastava V. Recent advances in technologies for removal and recovery of selenium from (waste)water: A systematic review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 294:112926. [PMID: 34118514 DOI: 10.1016/j.jenvman.2021.112926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/06/2021] [Accepted: 05/08/2021] [Indexed: 06/12/2023]
Abstract
Selenium (Se) is distributed into different environmental compartments by natural and anthropogenic activities, and generally discharged in the form of selenate [SeO42-] and selenite [SeO32-], which are both toxic. Physical-chemical and biological treatment processes have been reported to exhibit good treatment efficiencies for Se from aqueous streams, only a few demonstrated to achieve effluent concentrations <5 μg/L. Moreover, there are only a few numbers of studies that describe the progress in technological developments over the last decade. Therefore, to unify the state of knowledge, identify ongoing research trends, and determine the challenges associated with available technologies, this systematic review critically analyses the published research on Se treatment. Specific topics covered in this review include (1) Se chemistry, toxicity, sources and legislation, (2) types of Se treatment technologies, (3) development in Se treatment approaches, (4) Se recovery and circular economy and (5) future prospects. The current research has been found to majorly focused on Se removal via adsorption techniques. However, the key challenges facing Se treatment technologies are related to the presence of competing ions in the solution and the persistence of selenate compared to selenite during their reduction.
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Affiliation(s)
- Izba Ali
- InOpSys - Mobiele Waterzuivering voor Chemie en Farma, Zandvoortstraat 12a, 2800, Mechelen, Belgium.
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22
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Pavón S, Martínez M, Giménez J, de Pablo J. Se(IV) Immobilization onto Natural Siderite: Implications for High‐Level Nuclear Waste Repositories. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sandra Pavón
- TU Bergakademie Freiberg Institute of Chemical Technology Leipziger Str. 29 09599 Freiberg Germany
- Universitat Politècnica de Catalunya Chemical Engineering Department Diagonal 647 08028 Barcelona Spain
| | - Maria Martínez
- Universitat Politècnica de Catalunya Chemical Engineering Department and Barcelona Research Center in Multiscale Science and Engineering Eduard Maristany 10–14 08930 Barcelona Spain
| | - Javier Giménez
- Universitat Politècnica de Catalunya Chemical Engineering Department and Barcelona Research Center in Multiscale Science and Engineering Eduard Maristany 10–14 08930 Barcelona Spain
| | - Joan de Pablo
- Universitat Politècnica de Catalunya Chemical Engineering Department and Barcelona Research Center in Multiscale Science and Engineering Eduard Maristany 10–14 08930 Barcelona Spain
- Fundació CTM Centre Tecnològic Plaça de la Ciència 2 08243 Manresa Spain
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Fabrication of ferrihydrite-loaded magnetic sugar cane bagasse charcoal adsorbent for the adsorptive removal of selenite from aqueous solution. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126131] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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24
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Albukhari SM, Salam MA, Abukhadra MR. Effective retention of inorganic Selenium ions (Se (VI) and Se (IV)) using novel sodalite structures from muscovite; characterization and mechanism. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.02.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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25
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Speciation and Determination of Selenium Oxyanions at the Drinking Water Pollution Concentration Levels. SEPARATIONS 2021. [DOI: 10.3390/separations8030027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The research on selenium presence in water resources has revealed the need to determine the respective aquatic species. As selenium oxyanions SeO32− (SeIV) and SeO42− (SeVI) predominate in natural waters, their determination is essential, mainly due to different ecotoxicity properties, as well as to different removal options from relevant-polluted waters. This study focuses on the SeO32−/SeO42− speciation/separation and determination through the selective adsorption of SeO32− only onto specific iron oxy-hydroxides (FeOOHs). For this purpose, the laboratory prepared FeOOHs examined along with the commercially available relevant material (Bayoxide), which was found to present optimum results for the speciation of selenium oxyanions, at the low concentration range 10–100 μg/L, using a dose of 0.5 g/L of adsorbent and gently stirring for 30 min at the usually encountered pH value of 7.3 ± 0.2. Moreover, the relevant experiments showed that the other major ions Cl−, HCO3−, NO3−, SO42−, Ca2+, Mg2+, Na+, possibly found in most natural waters at the concentration range 0–200 mg/L, as well as silicon, total organic carbon (TOC) of natural organic matter (NOM) and iron at the concentration range 0–50 mg/L, 0–5 mg/L and 0–1 mg/L, respectively, did not interfere with the selective adsorption of Se(IV). Furthermore, the most important advantage of this selective speciation method is its implementation/combination with all commonly applied analytical methods for the determination of total selenium.
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Abukhadra MR, AlHammadi A, El-Sherbeeny AM, Salam MA, El-Meligy MA, Awwad EM, Luqman M. Enhancing the removal of organic and inorganic selenium ions using an exfoliated kaolinite/cellulose fibres nanocomposite. Carbohydr Polym 2021; 252:117163. [DOI: 10.1016/j.carbpol.2020.117163] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/19/2020] [Accepted: 09/24/2020] [Indexed: 02/01/2023]
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Hong SH, Lyonga FN, Kang JK, Seo EJ, Lee CG, Jeong S, Hong SG, Park SJ. Synthesis of Fe-impregnated biochar from food waste for Selenium(Ⅵ) removal from aqueous solution through adsorption: Process optimization and assessment. CHEMOSPHERE 2020; 252:126475. [PMID: 32200180 DOI: 10.1016/j.chemosphere.2020.126475] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 06/10/2023]
Abstract
Iron-impregnated food waste biochar (Fe-FWB) was synthesized for Se(Ⅵ) removal from aqueous solution. The effect and interactive effects of different parameters including pyrolysis time, temperature, and Fe concentration were explored using response surface methodology (RSM) to enhance conditions to achieve the highest Se(Ⅵ) removal using Fe-FWB. Pyrolysis time was not significant for Se(Ⅵ) adsorption capacity of Fe-FWB, but temperature and Fe concentration were found to be significant. The highest adsorption was achieved at 3.47 h and 495.0 °C with an Fe concentration of 0.44 M. Fe-FWB synthesized under optimum conditions were used to investigate the kinetic, equilibrium, and thermodynamic adsorption of Se(Ⅵ). Se(Ⅵ) adsorption reached equilibrium within 6 h, and both pseudo-second order and pseudo-first order models were suitable for describing kinetic Se(Ⅵ) adsorption. The Freundlich model was found to suitably fit the equilibrium adsorption data than the Langmuir model. The highest adsorption capacity of Fe-FWB for Se(Ⅵ) was 11.7 mg g-1. Se(Ⅵ) adsorption on Fe-FWB was endothermic and spontaneous. The enthalpy change for Se(Ⅵ) adsorption was 54.4 kJ mol-1, and the entropy change was negative at 15-35 °C. The increment of solution pH from 3 to 11 decreased the Se(Ⅵ) adsorption from 19.2 to 7.4 mg g-1. The impact of interfering anions on Se(Ⅵ) adsorption followed the lineup: HCO3- > HPO42- > SO42- > NO3-. When compared to some adsorbents, the adsorption capacity of Se(Ⅵ) onto Fe-FWB was comparable even at neutral pH and the Fe-FWB was granular. These results indicate that Fe-FWB has prospective application in the removal of Se(Ⅵ) from aqueous solutions.
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Affiliation(s)
- Seung-Hee Hong
- Department of Integrated System Engineering, Hankyong National University, Anseong, 17579, Republic of Korea
| | - Fritz Ndumbe Lyonga
- Department of Chemical Engineering, Hankyong National University, Anseong, 17579, Republic of Korea
| | - Jin-Kyu Kang
- Environmental Functional Materials and Water Treatment Laboratory, Seoul National University, Republic of Korea
| | - Eun-Jin Seo
- Department of Bioresources and Rural System Engineering, Hankyong National University, 17579, Republic of Korea
| | - Chang-Gu Lee
- Department of Environmental and Safety Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - Sanghyun Jeong
- Department of Environmental Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Seong-Gu Hong
- Department of Bioresources and Rural System Engineering, Hankyong National University, 17579, Republic of Korea
| | - Seong-Jik Park
- Department of Bioresources and Rural System Engineering, Hankyong National University, 17579, Republic of Korea.
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Dev S, Khamkhash A, Ghosh T, Aggarwal S. Adsorptive Removal of Se(IV) by Citrus Peels: Effect of Adsorbent Entrapment in Calcium Alginate Beads. ACS OMEGA 2020; 5:17215-17222. [PMID: 32715207 PMCID: PMC7376897 DOI: 10.1021/acsomega.0c01347] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/05/2020] [Indexed: 05/13/2023]
Abstract
Selenium (Se) contamination in natural waters impacted by anthropogenic activities is becoming a prevalent and widespread problem. Investigation of novel, low-cost, and sustainable food-waste-sourced adsorbents for Se removal has largely been unexplored. Here, we report on the Se(IV) biosorption from a liquid solution using three waste-derived/low-cost biosorbents, namely citrus peels (bare), Ca-alginate gel beads, and Ca-alginate-citrus peels composite beads (Ca-alginate@citrus). The entrapment of citrus peels by Ca-alginate not only provided a structural framework for the citrus peel particles but also preserved the high-efficiency Se(IV) removal property of the citrus peels. From the modeling results, it was established that Se(IV) biosorption followed the fixed-film diffusion model, along with pseudo-second-order kinetics. Investigation of pH impacts along with initial dosing of sorbent/sorbate demonstrated that all of the three biosorbents exhibited optimum biosorption of Se(IV) at pH 6-8, 50-75 mg·L-1 of Se(IV), and 1-5 mg·L-1 of biosorbent. Overall, the maximum Se(IV) biosorption capacities were measured to be 116.2, 72.1, and 111.9 mg·g-1 for citrus peels, Ca-alginate, and Ca-alginate@citrus, respectively, with citrus peels (bare and immobilized) showing among the highest reported values in the literature for Se(IV) adsorption. This work provides a platform for the future development of an efficient filtration system using Ca-alginate@citrus as an inexpensive, novel, and sustainable biosorbent to treat Se(IV) contaminated water.
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Affiliation(s)
- Subhabrata Dev
- Institute
of Northern Engineering, University of Alaska
Fairbanks, Duck 403, 1760 Tanana Loop, Fairbanks, Alaska 99775, United States
- Mineral
Industry Research Laboratory, University
of Alaska Fairbanks, Fairbanks, Alaska 99775, United States
- . Phone: +1 907 474 6746
| | - Aibyek Khamkhash
- Mineral
Industry Research Laboratory, University
of Alaska Fairbanks, Fairbanks, Alaska 99775, United States
- Nevada
Gold Mines, Barrick Gold Corporation, Elko, Nevada 89801, United States
| | - Tathagata Ghosh
- Mineral
Industry Research Laboratory, University
of Alaska Fairbanks, Fairbanks, Alaska 99775, United States
| | - Srijan Aggarwal
- Department
of Civil and Environmental Engineering, University of Alaska Fairbanks, ELIF 360, 1764 Tanana Loop, Fairbanks, Alaska 99775, United States
- . Phone: +1 907
474 6120
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29
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Abstract
Research on selenium pollution in natural waters is continuous and discouraging. In this study, coagulation/precipitation was applied with the use of Fe(II), Fe(III), and poly-aluminum chloride (PACl) salts for Se(IV) removal at concentration range 10–100 μg Se(IV)/L that is commonly found in drinking waters. Prehydrolyzed Fe(III)-FeCl3 delivered the best uptake capacity (Q10 = 8.9 mg Se(IV)/g Fe(III) at pH 6) at the residual concentration equal to the drinking water regulation limit of 10 μg/L. This was much higher than the efficiencies achieved when applying the other coagulants: i.e., Q10 = 7.3 mg Se(IV)/g Fe3+-FeClSO4, Q10 = 6.4 mg Se(IV)/g prehydrolyzed Fe(III)-Fe2(SO4)3 and 0.7 mg Se(IV)/g Al-PACl at pH 6, and Q10 = 0.45 mg Se(IV)/g Fe(II) at pH 7.2. Comparing the different sources of Fe(III), it is apparent that Se(IV) uptake capacity is inhibited by the presence of SO42− in crystal structure of prehydrolyzed Fe2(SO4)3, while prehydrolyzed FeCl3 favors Se(IV) uptake. Temperature effect data showed that coagulation/precipitation is exothermic. In techno-economic terms, the optimal conditions for Se(IV) removal are coagulation/precipitation at pH values lower than 7 using prehydrolyzed Fe(III)-FeCl3, which provides a combination of minimum sludge production and lower operating cost.
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30
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Xu L, Fu F. Se(IV) oxidation by ferrate(VI) and subsequent in-situ removal of selenium species with the reduction products of ferrate(VI): performance and mechanism. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:528-536. [PMID: 31903843 DOI: 10.1080/10934529.2019.1710422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 06/10/2023]
Abstract
In order to treat selenium pollution, the study presents the use of potassium ferrate (K2FeO4) as an environmentally friendly agent for in situ removal of Se(IV) from aqueous media. Batch experiments were carried out to evaluate the influences of various factors including dosage of K2FeO4, ex-situ and in-situ adsorption, initial pH, and adsorption isotherms. The results showed that increasing dosage of K2FeO4 benefited the removal of total selenium with the efficiency up to 97.0% and Se(IV) removal significantly depended on pH, and as the pH increases, the decrease in Se(IV) adsorption efficiency is a general trend of pH dependence. The X-ray powder diffraction, Fourier transformed infrared spectrometer and high-resolution X-ray photoelectron spectroscopy analysis indicated that Se(IV) was removed from the aqueous solution by adsorbing on the surface of the decomposition products of K2FeO4 which are ferric oxide nanoparticles, and the selenium adsorbed on the generated ferric oxide nanoparticles existed in the forms of Se(IV) and Se(VI). Se(IV) and Se(VI) were adsorbed to the decomposition products of K2FeO4 by forming an inner-sphere complexes and an outer-sphere complexes, respectively.
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Affiliation(s)
- Liang Xu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China
| | - Fenglian Fu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China
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31
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Kosmulski M. The pH dependent surface charging and points of zero charge. VIII. Update. Adv Colloid Interface Sci 2020; 275:102064. [PMID: 31757389 DOI: 10.1016/j.cis.2019.102064] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 12/28/2022]
Abstract
A critical review of the points of zero charge (PZC) obtained by potentiometric titration and of isoelectric points (IEP) obtained by electrokinetic measurements. The results from the recent literature are presented with experimental details (temperature, method, type of apparatus, etc.), and they are compared with the zero points of similar materials reported in older publications. Most studies of PZC and IEP reported in the recent papers were carried out for metal oxides and hydroxides, especially alumina, iron oxides, and titania, and the results are consistent with the PZC and IEP of similar materials reported in older literature, and summarized in previous reviews by the same author. Relatively few studies were carried out with less common materials, and IEP of (nominally) VO2 and BN have been reported for the 1st time.
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32
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Fan P, Sun Y, Zhou B, Guan X. Coupled Effect of Sulfidation and Ferrous Dosing on Selenate Removal by Zerovalent Iron Under Aerobic Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:14577-14585. [PMID: 31743007 DOI: 10.1021/acs.est.9b04956] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Both the reactivity and the removal capacity of zerovalent iron (ZVI) for the target contaminant are important for applying ZVI in wastewater treatment. In this study, the feasibility of combining sulfidation treatment and Fe2+ dosing (S-ZVI/Fe2+) to enhance the performance of ZVI for Se(VI) removal was comprehensively investigated under aerobic conditions. Se(VI) was first adsorbed on the surface of ZVI particles and then reduced to Se(IV) and Se(0) with Se(0) being the final product in S-ZVI/Fe2+ system. This system bore the advantages of both sulfidation treatment (S-ZVI) and Fe2+ dosing (ZVI/Fe2+) for Se(VI) removal. The amounts and rate constants of Se(VI) removal in S-ZVI/Fe2+ system were increased by 1.8-32.8 times and 11.7-194.0 times, respectively, compared to those in pristine ZVI system. Sulfidation significantly accelerated the corrosion of Fe0 thus improved the removal rate of Se(VI). The promoting effect of Fe2+ on Se(VI) sequestration by S-ZVI should be mainly associated with the following facts: Fe2+ could maintain a relatively low pH level during Se(VI) removal by S-ZVI; Compared to S-ZVI alone, the consumption of Fe0 in S-ZVI/Fe2+ by O2/H+ was slower, and thus the electron efficiency of S-ZVI was elevated; Fe2+ dosing facilitated electron transfer by forming semiconductive Fe3O4.
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Affiliation(s)
- Peng Fan
- State Key Laboratory of Pollution Control and Resources Reuse , College of Environmental Science and Engineering, Tongji University , Shanghai 200092 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
- International Joint Research Center for Sustainable Urban Water System , Tongji University , Shanghai 200092 , China
| | - Yuankui Sun
- State Key Laboratory of Pollution Control and Resources Reuse , College of Environmental Science and Engineering, Tongji University , Shanghai 200092 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
- International Joint Research Center for Sustainable Urban Water System , Tongji University , Shanghai 200092 , China
| | - Baoxue Zhou
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
- School of Environmental Science and Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiaohong Guan
- State Key Laboratory of Pollution Control and Resources Reuse , College of Environmental Science and Engineering, Tongji University , Shanghai 200092 , China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092 , China
- International Joint Research Center for Sustainable Urban Water System , Tongji University , Shanghai 200092 , China
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