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Chen L, Yi Z, Chen Y, Li Y, Jiang H, Wang J, Chen Y, Nie Y, Luo M, Wang Q, Zhang W, Wu Y. Improved humification and Cr(VI) immobilization by CaO 2 and Fe 3O 4 during composting. BIORESOURCE TECHNOLOGY 2024; 413:131479. [PMID: 39265754 DOI: 10.1016/j.biortech.2024.131479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 09/06/2024] [Accepted: 09/09/2024] [Indexed: 09/14/2024]
Abstract
The current research studied how Fe3O4 nanomaterials (NMs) and CaO2 affect humification and Cr(VI) immobilization and reduction during the composting of oil-tea Camellia meal and Cr-contaminated soil. The results showed that Fe3O4 NMs and CaO2 successfully construct a Fenton-like reaction in this system. The excitation-emission matrix-parallel factor (EEM-PARAFAC) demonstrated that this Fenton-like treatment increased the generation of humic acids and accelerated the humification. Meantime, RES-Cr increased by 5.91 % and Cr(VI) decreased by 16.36 % in the treatment group with CaO2 and Fe3O4 NMs after 60 days. Moreover, the microbial results showed that Fe3O4 NMs and CaO2 could promote the enrichment of Cr(VI) reducing bacteria, e.g., Bacillus, Pseudomonas, and Psychrobacter, and promote Cr(VI) reduction. This study gives a novel view and theoretical reference to remediate Cr(VI) pollution through composting.
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Affiliation(s)
- Li Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhigang Yi
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yaoning Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Yuanping Li
- School of Municipal and Geomatics Engineering, Hunan City University, Yiyang, Hunan 413000, PR China.
| | - Hongjuan Jiang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jun Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yanrong Chen
- School of Resource & Environment, Hunan University of Technology and Business, Changsha 410205, PR China
| | - Yaoqin Nie
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Mengwei Luo
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Qianruyu Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Wei Zhang
- School of Municipal and Geomatics Engineering, Hunan City University, Yiyang, Hunan 413000, PR China
| | - Yanting Wu
- School of Municipal and Geomatics Engineering, Hunan City University, Yiyang, Hunan 413000, PR China
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Sricharoenvech P, Siebecker MG, Tappero R, Landrot G, Fischel MHH, Sparks DL. Chromium speciation and mobility in contaminated coastal urban soils affected by water salinity and redox conditions. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132661. [PMID: 37837776 DOI: 10.1016/j.jhazmat.2023.132661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/09/2023] [Accepted: 09/26/2023] [Indexed: 10/16/2023]
Abstract
Chromium (Cr) is a redox-sensitive element in contaminated coastal urban soils. Sea level rise (SLR) with subsequent soil inundation may facilitate Cr transformation and mobilization through alterations in local redox conditions and porewater ion composition. We investigated the impact of water salinity and redox conditions on Cr chemistry in these environments. Synchrotron-based X-ray spectroscopy and wet chemical analyses revealed that the soils contained very high levels of Cr (up to 4320 mg kg-1) and that chromite (∼52%) and Fe-Cr hydroxide coprecipitates (∼44%) were the predominant Cr species. The abundance of these two components resulted in low Cr mobility under non-flooded conditions. Chromium(II) was identified in the soils, potentially derived from the waste parent material. Seawater and anoxic conditions resulted in lower Cr release compared to freshwater and aerobic conditions. Up to three to eight times more Cr was released under aerobic conditions versus anaerobic conditions in the freshwater versus saltwater, respectively, with total dissolved Cr values remaining below 0.02 mg L-1. The decrease in Cr release was likely due to Cr reduction by Fe(II) and sulfide. This work provides important information on how salinity and redox fluctuations impact Cr cycling which is likely to occur during SLR.
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Affiliation(s)
| | - Matthew G Siebecker
- Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA
| | - Ryan Tappero
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Gautier Landrot
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin 91192, Gif-sur-Yvette, France
| | - Matthew H H Fischel
- Sustainable Agricultural Systems Laboratory, USDA-Agricultural Research Service, Beltsville, MD, 20705, USA
| | - Donald L Sparks
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE 19716, USA
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3
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Kumar N, Bhushan S, Patole PB, Gite A. Multi-biomarker approach to assess chromium, pH and temperature toxicity in fish. Comp Biochem Physiol C Toxicol Pharmacol 2022; 254:109264. [PMID: 35041967 DOI: 10.1016/j.cbpc.2021.109264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/27/2022]
Abstract
Chromium (Cr) is considered as the most common ubiquitous pollutant for aquatic animals including fish. An experiment was conducted to determine the acute and chronic toxicity of Cr, pH and high temperature in Anabas testudineus. Lethal concentration (LC50) of Cr alone was determined as 55.02 mg L-1, Cr and low pH 48.19 mg L-1 and Cr, low pH and high temperature 47.16 mg L-1. The chronic toxicity of low dose of Cr, pH and high temperature (1/10th and 1/20th of LC50) was designed to execute the experiment for 72 days. The stress enzymes and biomarkers were determined viz. superoxide dismutase, catalase, glutathione peroxidase, glutathione-s-transferase, lipid peroxide, acetylcholine esterase, cortisol, HSP-70, blood glucose, aspartate amino transferase, alanine amino transferase and malate dehydrogenase, lactate dehydrogenase, ATPase and genotoxicity in this study. We had also studied the integrated biomarker response (IBR), which revealed that Cr toxicity enhanced with concurrent exposure to pH and high temperature. All the biochemical attributes were significantly altered with exposure to Cr alone and with low pH and high temperature except gill SOD. Further, thermal tolerance was also determined, and results revealed that thermal tolerance was significantly reduced with exposure to Cr alone and Cr and low pH exposure in A. testudineus. The present study concluded that, the chronic toxicity of Cr is enhanced with low pH and high temperature and it has led to understanding the multi-approach of Cr toxicity which affect, stress biomarkers, cellular metabolic stress and thermal tolerance of A. testudineus.
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Affiliation(s)
- Neeraj Kumar
- ICAR-National Institute of Abiotic Stress Management, Baramati, Pune, Maharashtra 413115, India.
| | - Shashi Bhushan
- ICAR-Central Institute of Fisheries Education, Versova, Mumbai 400056, India
| | - Pooja Bapurao Patole
- ICAR-National Institute of Abiotic Stress Management, Baramati, Pune, Maharashtra 413115, India
| | - Archana Gite
- ICAR-National Institute of Abiotic Stress Management, Baramati, Pune, Maharashtra 413115, India
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4
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Fei YH, Li M, Ye Z, Guan J, Huang Z, Xiao T, Zhang P. The pH-sensitive sorption governed reduction of Cr(VI) by sludge derived biochar and the accelerating effect of organic acids. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127205. [PMID: 34844345 DOI: 10.1016/j.jhazmat.2021.127205] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 08/25/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Reduction coupling immobilization is one of the most commonly adopted strategies for the remediation of Cr(VI) contamination. Biochar is a carbon-rich material with abundant active functional groups for sorption and reduction reactions. In previous reports, phytomass derived biochars and organic functional groups have been emphasized, while the performance of sludge derived biochar (SBC) has often been understated. In the present study, a 30 d kinetic study proved that the removal route involved the sorption of Cr(VI), reduction to Cr(III) and immobilization of Cr(III), and that the sorption process was the primary and rate determining step. As a result of the SBC alkalinity, the solution pH increased, and sorption was largely inhibited, which then governed the overall removal ratio. The FTIR spectra suggested the involvement of hydroxyls in these processes. Low molecular weight organic acids accelerated the removal process in the early phase and improved the reduction process.
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Affiliation(s)
- Ying-Heng Fei
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China.
| | - Manzhi Li
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhuofeng Ye
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jieyang Guan
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhenhong Huang
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Tangfu Xiao
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Ping Zhang
- School of Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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Bashir MA, Naveed M, Ashraf S, Mustafa A, Ali Q, Rafique M, Alamri S, Siddiqui MH. Performance of Zea mays L. cultivars in tannery polluted soils: Management of chromium phytotoxicity through the application of biochar and compost. PHYSIOLOGIA PLANTARUM 2021; 173:129-147. [PMID: 33216991 DOI: 10.1111/ppl.13277] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/19/2020] [Accepted: 11/11/2020] [Indexed: 05/22/2023]
Abstract
Soil contamination with heavy metals caused by various industrial activities is a threatening global environmental issue of the current era. Chromium (Cr) is the most toxic heavy metal used in leather industry and disposal of untreated wastewater into natural water bodies leads to contamination of natural soil and water resources. We studied the combined effect of biochar and compost on improving the tolerance to Cr toxicity by enhancing the morpho-physiological and biochemical attributes of two maize cultivars (P-1543 and NK-8441) grown in tannery waste polluted soils. The results of this study reveal that Cr toxicity reduced the plant growth by affecting physiological and biochemical attributes. Here, compost and biochar application significantly increased the plant biomass (fresh and dry), height, photosynthesis, chlorophyll content, water relation, starch, and protein content over treatment set as control. However, significant decline in electrolyte leakage (EL), proline, lipid peroxidation, soluble sugars, and antioxidant enzymes (APX, GPX, GR, GST, GSH, SOD, and CAT) was observed by combined application of compost and biochar. Hexavalent chromium concentration was maximum decreased to 4.1 μg g-1 in soil after post-harvesting of maize cultivar NK-8441, while in roots and shoots to 22.6 and 19.2 μg g-1 of maize cultivar P-1543, respectively, by combined application of compost and biochar. Moreover, these both amendments in combination showed considerably better results than their sole application and cultivar P-1543 comparatively performed better than NK 8441, in both K and S soils. Correlation and principal component analysis (PCA) revealed mostly highly positive associations among all the studied morpho, physio, and biochemical attributes of maize plant with the few exceptions, particularly concentration of Cr(III) and Cr(VI) in soil. The present work concluded that combined use of biochar and compost has great potential to decrease Cr toxicity and improve plant growth in tannery polluted soils.
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Affiliation(s)
- Muhammad A Bashir
- Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Naveed
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Sobia Ashraf
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Adnan Mustafa
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qasim Ali
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Munazza Rafique
- Soil Bacteriology Section, Agricultural Biotechnology Research Institute, AARI, Faisalabad, Pakistan
| | - Saud Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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6
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Sorptive and Redox Interactions of Humic Substances and Metal(loid)s in the Presence of Microorganisms. Fungal Biol 2021. [DOI: 10.1007/978-3-030-54422-5_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Alidokht L, Oustan S, Khataee A. Cr VI reductive transformation process by humic acid extracted from bog peat: Effect of variables and multi-response modeling. CHEMOSPHERE 2021; 263:128221. [PMID: 33297177 DOI: 10.1016/j.chemosphere.2020.128221] [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: 08/19/2020] [Revised: 08/29/2020] [Accepted: 08/29/2020] [Indexed: 06/12/2023]
Abstract
The present paper reports the efficiency of bog peat-derived humic acid (HA) in the reductive removal of hexavalent chromium (CrVI) from aqueous solution as affected by solution pH, the dose of FeIII and reaction time (numeric variables) and light irradiation (categorical variable). A three-level Box-Behnken design (BBD) applied to design experimental matrix, model the effects and interactions of variables on four determined responses (residual concentration of dissolved CrVI, dissolved CrIII, dissolved FeII and total CrVI) and optimize the experimental conditions for highest CrVI removal efficiency (CrVI RE). Reaction mechanisms are also well discussed. Regression models were developed and analyzed by the ANOVA test and models determination coefficient R2. Obtained models were significant (F values > 13) and an excellent relationship between experimental and predicted responses (R2: 98.1-99.6%) was observed. The optimum conditions were established corresponding to the residual concentration of dissolved CrVI as an index for CrVI removal efficiency (RE). In the dark system, the highest CrVI RE (98.1%) was obtained under the following conditions: pH = 1, reaction time = 7 d and FeIII dosage = 0.110 mM. In the light-irradiated system, the optimal CrVI RE of 98.3% was observed in pH = 1, reaction time = 5 d and FeIII dosage = 0.075 mM. Almost all reduced CrIII remained in the solution even at high pH value. No adsorption or precipitation of CrIII on the HA surface at pH 5 was confirmed by surface analyses of HA using X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM).
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Affiliation(s)
- Leila Alidokht
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, 51666-16471, Tabriz, Iran; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Shahin Oustan
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran; Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam.
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8
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Pradas Del Real AE, Pérez-Sanz A, García-Gonzalo P, Castillo-Michel H, Gismera MJ, Lobo MC. Evaluating Cr behaviour in two different polluted soils: Mechanisms and implications for soil functionality. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 276:111073. [PMID: 32916546 DOI: 10.1016/j.jenvman.2020.111073] [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: 03/23/2020] [Revised: 06/09/2020] [Accepted: 07/09/2020] [Indexed: 05/22/2023]
Abstract
This work investigates the mechanisms determining Cr speciation and availability in two different soils polluted with two chromium sources (an industrial sludge, highly polluted with Cr, and Cr(VI) solution) and the influence of these parameters on the recovery of the soil functions related with biological quality and plant growth. The experiment was carried out in greenhouse conditions using 36 pots of 17 kg for the growth of Silene vulgaris for 21 months. Logistic Regression Model using Lasso estimator shows that soil organic matter (SOM) and pH control Cr availability in studied soils. In soils treated with the sludge, X ray Absorption spectroscopy showed that Cr was present as Cr(III), biological quality indicators increased and plants were able to grow. However, in soils polluted with Cr(VI), Cr availability was significantly different in the two soils. In the alkaline and poor in organic matter soil, 12% of Cr(VI) remained in the soil leading to the decrease of soil quality indicators and the total inhibition of plant growth. In the neutral soil, Cr(VI) was totally reduced to Cr(III) by soil organic matter (SOM), quality indicators were not affected and plants grown properly. Infrared Spectroscopy showed that different functional groups reacted with Cr in the two soils. This study highlights the importance to understand the mechanisms underlaying Cr redox and adsorption reactions in Cr polluted soils as they determine the potential recovery of the functions related with biological quality indicators and plant growth. The methodology proposed allows this study in complex soil samples at realistic concentrations and may be useful for risk assessment and for the planning of managing strategies in Cr polluted soils.
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Affiliation(s)
- A E Pradas Del Real
- Department of Agroenvironmental Research, IMIDRA, Alcalá de Henares, 28800, Madrid, Spain.
| | - A Pérez-Sanz
- Department of Agroenvironmental Research, IMIDRA, Alcalá de Henares, 28800, Madrid, Spain
| | - P García-Gonzalo
- Department of Agroenvironmental Research, IMIDRA, Alcalá de Henares, 28800, Madrid, Spain
| | - H Castillo-Michel
- ID21, European Synchrotron Radiation Facility (ESRF), CS 40220, 38043, Grenoble, Cedex 9, France
| | - M J Gismera
- Department of Analytical Chemistry and Instrumental Analysis, Faculty of Sciences, Universidad Autónoma de Madrid, Francisco Tomas yValiente,7, E-28049, Madrid, Spain
| | - M C Lobo
- Department of Agroenvironmental Research, IMIDRA, Alcalá de Henares, 28800, Madrid, Spain
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Tumolo M, Ancona V, De Paola D, Losacco D, Campanale C, Massarelli C, Uricchio VF. Chromium Pollution in European Water, Sources, Health Risk, and Remediation Strategies: An Overview. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5438. [PMID: 32731582 PMCID: PMC7432837 DOI: 10.3390/ijerph17155438] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 01/23/2023]
Abstract
Chromium is a potentially toxic metal occurring in water and groundwater as a result of natural and anthropogenic sources. Microbial interaction with mafic and ultramafic rocks together with geogenic processes release Cr (VI) in natural environment by chromite oxidation. Moreover, Cr (VI) pollution is largely related to several Cr (VI) industrial applications in the field of energy production, manufacturing of metals and chemicals, and subsequent waste and wastewater management. Chromium discharge in European Union (EU) waters is subjected to nationwide recommendations, which vary depending on the type of industry and receiving water body. Once in water, chromium mainly occurs in two oxidation states Cr (III) and Cr (VI) and related ion forms depending on pH values, redox potential, and presence of natural reducing agents. Public concerns with chromium are primarily related to hexavalent compounds owing to their toxic effects on humans, animals, plants, and microorganisms. Risks for human health range from skin irritation to DNA damages and cancer development, depending on dose, exposure level, and duration. Remediation strategies commonly used for Cr (VI) removal include physico-chemical and biological methods. This work critically presents their advantages and disadvantages, suggesting a site-specific and accurate evaluation for choosing the best available recovering technology.
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Affiliation(s)
- Marina Tumolo
- Water Research, Institute-Italian National Research Council (IRSA-CNR), 70132 Bari, Italy; (M.T.); (D.L.); (C.C.); (C.M.); (V.F.U.)
- Department of Biology, University of Bari, 70126 Bari, Italy
| | - Valeria Ancona
- Water Research, Institute-Italian National Research Council (IRSA-CNR), 70132 Bari, Italy; (M.T.); (D.L.); (C.C.); (C.M.); (V.F.U.)
| | - Domenico De Paola
- Institute of Biosciences and Bioresources, Italian National Research Council (IBBR-CNR), 70126 Bari, Italy;
| | - Daniela Losacco
- Water Research, Institute-Italian National Research Council (IRSA-CNR), 70132 Bari, Italy; (M.T.); (D.L.); (C.C.); (C.M.); (V.F.U.)
- Department of Biology, University of Bari, 70126 Bari, Italy
| | - Claudia Campanale
- Water Research, Institute-Italian National Research Council (IRSA-CNR), 70132 Bari, Italy; (M.T.); (D.L.); (C.C.); (C.M.); (V.F.U.)
| | - Carmine Massarelli
- Water Research, Institute-Italian National Research Council (IRSA-CNR), 70132 Bari, Italy; (M.T.); (D.L.); (C.C.); (C.M.); (V.F.U.)
| | - Vito Felice Uricchio
- Water Research, Institute-Italian National Research Council (IRSA-CNR), 70132 Bari, Italy; (M.T.); (D.L.); (C.C.); (C.M.); (V.F.U.)
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10
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He Y, Zhang L, An X, Han C, Luo Y. Microwave assistant rapid synthesis MCM-41-NH 2 from fly ash and Cr(VI) removal performance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:31463-31477. [PMID: 31478175 DOI: 10.1007/s11356-019-06255-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
Synthesis of silicon materials from fly ash is an ecologically justified process aimed at the transformation of energy sector waste-fly ash into mesoporous silicon material of broad possible application field. In this study, the MCM-41-NH2 was successfully synthesized from industrial solid waste fly ash via a facile and fast process of alkali fusion method under the assistant of microwave. Due to the employ of microwave, the aging time was controlled within 30 min, which was significantly shorter than that of traditional hydrothermal method (48-72 h). And, the obtained MCM-41-NH2 was shown an excellent performance to remove Cr(VI) from solution under the investigation of fixed-bed column. The maximum adsorption capacity for Cr(VI) was 53.77 mg/g. Additionally, the effect of initial concentration, flow rate, bed height, and pH on Cr(VI) removal were investigated, and the models of Thomas and Adams-Bohart were applied to predict the experiment data; the correlation coefficients (R2) of Thomas model under the investigated conditions were all close to 1. Furthermore, the adsorbent was characterized by N2 adsorption-desorption isotherm, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), zeta potential, ultraviolet-visible spectroscopy (UV-vis), X-ray photoelectron spectroscopy (XPS), and NH3-Temperature Programmed Desorption (NH3-TPD). The results showed that amino groups play an important role in the adsorption process. Cr(VI) was firstly adsorbed on the surface of the MCM-41-NH2, and then some of the adsorbed Cr(VI) were reduced to Cr(III) by the release of the protons of the ammonium. The information showed that MCM-41-NH2 could be an effective and low-cost sorbent for removing Cr(VI) from wastewater. Furthermore, recycling experiments showed that the spent adsorbent had high catalytic performance for methyl mercaptan (CH3SH). Graphical abstract .
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Affiliation(s)
- Yuxuan He
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Liming Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Xiao An
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Caiyun Han
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
| | - Yongming Luo
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
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Caporale AG, Agrelli D, Rodríguez-González P, Adamo P, Alonso JIG. Hexavalent chromium quantification by isotope dilution mass spectrometry in potentially contaminated soils from south Italy. CHEMOSPHERE 2019; 233:92-100. [PMID: 31170588 DOI: 10.1016/j.chemosphere.2019.05.212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/17/2019] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
Due to carcinogenicity of hexavalent chromium [Cr(VI)], its accurate quantification in Cr-contaminated soils is of paramount importance. The aim of this work was to quantify Cr(VI) by species-specific IDMS in soil samples from two Italian case studies: A) farmland potentially contaminated by pseudo-total Cr and Zn and heavy hydrocarbons due to past illegal burial of tannery wastes; B) Solofrana valley where volcanic soils are potentially contaminated by pseudo-total Cr and Cu due to tannery activities. Hexavalent Cr extraction from soils was performed by focused microwaves (5 min at 80 °C) using 50 mM EDTA, followed by the separation of Cr species by IC and detection by ICP-MS. The Cr(VI) extracted from 20 soil samples of case study A ranged from 0.15 to 11.18 μg g-1, with 70% of samples exceeding the Cr(VI) screening value set by Italian Parliament for residential/urban soil to assess their potential contamination. Higher levels of Cr(VI) (22.0-107.1 μg g-1) were extracted from other 7 Cr-most-enriched soil samples, which required a pre-treatment with n-hexane to remove part of organic compounds from each sample, since these reducing agents made the quantification of Cr(VI) by IDMS more challenging because they caused an almost complete reduction of 50Cr(VI) used for IDMS quantification. Hexavalent Cr extracted from soil samples of case study B ranged from 0.70 to 5.79 μg g-1, with 42% of samples exceeding the value set by Italian legislation. In both case studies, the Cr(VI) extracted from soil was significantly correlated to the pseudo-total Cr content.
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Affiliation(s)
- Antonio G Caporale
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055, Portici, Naples, Italy.
| | - Diana Agrelli
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055, Portici, Naples, Italy; CIRAM - Interdepartmental Center for Environmental Research, University of Naples Federico II, Via Mezzocannone 16, 80134, Naples, Italy
| | - Pablo Rodríguez-González
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Paola Adamo
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055, Portici, Naples, Italy
| | - J Ignacio García Alonso
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
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Chen KY, Tzou YM, Chan YT, Wu JJ, Teah HY, Liu YT. Removal and simultaneous reduction of Cr(VI) by organo-Fe(III) composites produced during coprecipitation and coagulation processes. JOURNAL OF HAZARDOUS MATERIALS 2019; 376:12-20. [PMID: 31100491 DOI: 10.1016/j.jhazmat.2019.04.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/26/2019] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
Composites formed during the coprecipitation and/or coagulation of ubiquitous dissolved organic matter (DOM) and Fe in natural and waste water systems might be potential scavengers for Cr(VI) in terms of sorption and reduction. Our objective here was to determine sorption and simultaneous reduction of Cr(VI) on organo-Fe(III) composites (OFC) in relation coprecipitated pH and C/(C + Fe) ratios. Results showed the greatest Cr sorption of 51.8 mg g-1 on the OFC sample that was precipitated at pH 3 and contained the C/(C + Fe) molar ratio of 0.71. Wherein the Cr(VI) removal subsequent to the coprecipitation was dominated by the sorption on Fe hydroxides. Although amounts of total sorbed Cr decreased with increasing C/(C + Fe) molar ratio, the reverse trend on Cr(VI) reducibility compensated the Cr(VI) removal capability of OFC samples. With C/(C + Fe) molar ratios ≥ 0.89, the increasing amounts of coprecipitated organic matter that homogeneously distributed with Fe domains on OFC surfaces could trigger a significantly pronounced Cr reduction. Collectively, our results suggested an alternative method for Cr(VI) remediation by manipulating C/Fe ratios in suspensions. After the sorption of most Cr(VI) on Fe hydroxides, increasing C/Fe ratio in systems could further improve the Cr(VI) removal efficiency by the reduction of remaining Cr(VI) to Cr(III).
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Affiliation(s)
- Kai-Yue Chen
- Department of Soil and Environmental Sciences, National Chung Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan
| | - Yu-Min Tzou
- Department of Soil and Environmental Sciences, National Chung Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan; Innovation and Development Center of Sustainable Agriculture, National Chung-Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan
| | - Ya-Ting Chan
- Department of Soil and Environmental Sciences, National Chung Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan
| | - Jeng-Jzung Wu
- Department of Soil and Environmental Sciences, National Chung Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan
| | - Heng-Yi Teah
- Waseda Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Yu-Ting Liu
- Department of Soil and Environmental Sciences, National Chung Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan; Innovation and Development Center of Sustainable Agriculture, National Chung-Hsing University, 145 Xingda Rd. Taichung 40227, Taiwan.
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Lu H, Wang J, Li F, Huang X, Tian B, Hao H. Highly Efficient and Reusable Montmorillonite/Fe₃O₄/Humic Acid Nanocomposites for Simultaneous Removal of Cr(VI) and Aniline. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E537. [PMID: 30018225 PMCID: PMC6070813 DOI: 10.3390/nano8070537] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/13/2018] [Accepted: 07/14/2018] [Indexed: 11/30/2022]
Abstract
Recyclable nanomaterials are in great need to develop clean technology for applications in the removal of water contaminants. In this work, easily separable montmorillonite/Fe₃O₄/humic acid (MFH) nanocomposites were fabricated through a facile hydrothermal route. It was found the adsorption ability and stability of MFH was significantly enhanced due to the synergistic effects between montmorillonite, Fe₃O₄ nanoparticles and humic acid. The MFH nanocomposites are highly efficient and recyclable as they can remove at least 82.3% of Cr(VI) and 95.1% of aniline in six consecutive runs. The adsorption mechanism was investigated by analyzing the kinetic parameters of pseudo first-order, pseudo second-order, and intraparticle diffusion models and describing the equilibrium isotherms of Langmuir and Freundlich models. Results indicated different adsorption mechanisms of Cr(VI) and aniline by MFH. The readily synthesized MFH nanocomposites can act as effective and practical materials for environmental applications.
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Affiliation(s)
- Haijiao Lu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 30072, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, China.
| | - Jingkang Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 30072, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, China.
| | - Fei Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 30072, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, China.
| | - Xin Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 30072, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, China.
| | - Beiqian Tian
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 30072, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, China.
| | - Hongxun Hao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 30072, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30072, China.
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