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Mechanochemical treatment of hexachlorobenzene-contaminated soil with additives. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:41910-41922. [PMID: 36639587 DOI: 10.1007/s11356-023-25212-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
The use of mechanochemistry for the remediation of hexachlorobenzene (HCB)-contaminated soil was investigated. Additives such as alkaline materials, neutral materials, natural minerals, and solid waste were studied to explore their effect on the degradation of hexachlorobenzene in soil with single or combined addition by mechanochemical method. The best combination of materials were determined based on HCB destruction percentage by considering the impact on soil quality, the treatment cost, and the availability of additives. Scanning electron microscope (SEM) images and X-ray photoelectron spectrometer (XPS) analysis were conducted for the mechanism studies. The combination of albite and ferric oxide (Fe3O4) was found to achieve the best performance in the degradation of HCB with the destruction percentage from 74.3 to 92.5% after 2-h and 6-h reaction, respectively. The developed fracture structure and complex compositions of albite provided abundant reaction sites for mechanochemical degradation of HCB in soil.
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Wu R, Zhang S, Wang S. Development and microbial characterization of Bio-RD-PAOP for effective remediation of polychlorinated biphenyls. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129190. [PMID: 35739720 DOI: 10.1016/j.jhazmat.2022.129190] [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: 02/17/2022] [Revised: 05/02/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Polychlorinated biphenyls (PCBs) as typical halogenated persistent organic pollutants are widely distributed in natural environments, and can be enriched and magnified in organisms via food webs. It is consequently urgent and necessary to develop techniques to completely remove these persistent organohalides. In this study, we developed a process (Bio-RD-PAOP) by integrating microbial reductive dechlorination (Bio-RD) with subsequent persulfate activation and oxidation process (PAOP) for effective remediation of PCBs. Results showed the synergistic combination of advantages of Bio-RD and PAOP in dechlorination of higher-chlorinated PCBs and of PAOP in degradation/mineralization of lower-chlorinated PCBs, respectively. For the PAOP, both experimental evidences and theoretical calculations suggested that degradation rate and efficiency decreased with the increased PCB chlorine numbers. Relative to the Bio-RD and PAOP, Bio-RD-PAOP had significantly higher PCB removal efficiencies, of which values were PCB congener-specific. For example, removal efficiency of Bio-RD-PAOP in removing PCB88 is 2.50 and 1.86 times of that of Bio-RD and PAOP, respectively. In contrast, the efficiency is 1.66 and 3.35 times of Bio-RD and PAOP, respectively, for PCB180 removal. The PAOP-derived oxidizing species (mainly sulfate free radical) significantly decreased microbial abundance, particularly of the organohalide-respiring Dehalococcoides. Notably, co-existence of other microorganisms alleviated the inhibitive effect of oxidizing species on the Dehalococcoides, possibly due to formation of microbial flocs or biofilm. This study provided a promising strategy for extensive remediation of organohalide-contaminated sites, as well as new insight into impact of PAOP-derived oxidizing species on the organohalide-respiring community.
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Affiliation(s)
- Rifeng Wu
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Shangwei Zhang
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China
| | - Shanquan Wang
- Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou 510006, China.
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Dai C, Han Y, Duan Y, Lai X, Fu R, Liu S, Leong KH, Tu Y, Zhou L. Review on the contamination and remediation of polycyclic aromatic hydrocarbons (PAHs) in coastal soil and sediments. ENVIRONMENTAL RESEARCH 2022; 205:112423. [PMID: 34838568 DOI: 10.1016/j.envres.2021.112423] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
The rapid economic and population growth in coastal areas is causing increasingly serious polycyclic aromatic hydrocarbons (PAHs) pollution in these regions. This review compared the PAHs pollution characteristics of different coastal areas, including industrial zones, commercial ports, touristic cities, aquacultural & agricultural areas, oil & gas exploitation areas and megacities. Currently there are various treatment methods to remediate soils and sediments contaminated with PAHs. However, it is necessary to provide a comprehensive overview of all the available remediation technologies up to date, so appropriate technologies can be selected to remediate PAHs pollution. In view of that, we analyzed the characteristics of the remediation mechanism, summarized the remediation methods for soil or sediments in coastal areas, which were physical repair, chemical oxidation, bioremediation and integrated approaches. Besides, this review also reported the development of new multi-functional green and sustainable systems, namely, micro-nano bubble (MNB), biochar, reversible surfactants and peracetic acid. While physical repair, expensive but efficient, was regarded as a suitable method for the PAHs remediation in coastal areas because of land shortage, integrated approaches would produce better results. The ultimate aim of the review was to ensure the successful restructuring of PAHs contaminated soil and sediments in coastal areas. Due to the environment heterogeneity, PAHs pollution in coastal areas remains as a daunting challenge. Therefore, new and suitable technologies are still needed to address the environmental issue.
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Affiliation(s)
- Chaomeng Dai
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, PR China
| | - Yueming Han
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, PR China
| | - Yanping Duan
- Institute of Urban Studies, School of Environmental and Geographical Sciences, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai, 200234, China.
| | - Xiaoying Lai
- College of Management and Economics, Tianjin University, Tianjin, 300072, PR China
| | - Rongbing Fu
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai, 200092, PR China
| | - Shuguang Liu
- College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, PR China
| | - Kah Hon Leong
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar, 31900, Perak, Malaysia
| | - Yaojen Tu
- Institute of Urban Studies, School of Environmental and Geographical Sciences, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai, 200234, China
| | - Lang Zhou
- Department of Civil, Architectural, and Environmental Engineering, The University of Texas at Austin, 301 E. Dean Keeton St., Stop C1786, Austin, TX, 78712, USA
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Yang R, Zeng G, Xu Z, Zhou Z, Huang J, Fu R, Lyu S. Comparison of naphthalene removal performance using H 2O 2, sodium percarbonate and calcium peroxide oxidants activated by ferrous ions and degradation mechanism. CHEMOSPHERE 2021; 283:131209. [PMID: 34147979 DOI: 10.1016/j.chemosphere.2021.131209] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/25/2021] [Accepted: 06/10/2021] [Indexed: 06/12/2023]
Abstract
The presence of polycyclic aromatic hydrocarbons (PAHs) in groundwater is making a great threat to human health in the world which has received an increasing environmental concern. Among various Fenton oxidation processes, 97.6%, 92.1% and 89.4% naphthalene (NaP) removals were observed using hydrogen peroxide (H2O2), sodium percarbonate (SPC) and calcium peroxide (CP) as oxidants activated by Fe(II) in ultrapure water tests, respectively. While, the inhibitory effect on NaP degradation caused by the weak alkaline solution pH and the presence of HCO3- in actual groundwater could be compensated by doubling dosages of oxidants and Fe(II) to different extent. 98.0%, 49.8% and 11.5% of NaP were degraded by using H2O2, SPC and CP, respectively, strongly suggesting the best H2O2 performance among them. It was observed that 83.3% and 9.6% inhibition on NaP degradation in H2O2/Fe(II)/NaP system occurred in the presence of isopropyl alcohol and chloroform, confirming that both hydroxyl radical (HO) and superoxide anion radical () contributed to NaP degradation in Fenton process and HO was the prominent radical. The presence of HO was further demonstrated by electro-spin resonance spectrometer analysis. The identification of transformation products of NaP revealed that hydroxylation and ring rupture were the main NaP degradation pathways.
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Affiliation(s)
- Rumin Yang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Guilu Zeng
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhiqiang Xu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhengyuan Zhou
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Jingyao Huang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Rongbing Fu
- Center for Environmental Risk Management & Remediation of Soil & Groundwater, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China.
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Abstract
Persistent organic contaminants affecting soil and groundwater pose a significant threat to ecosystems and human health. Fenton oxidation is an efficient treatment for removing these pollutants in the aqueous phase at acidic pH. However, the in-situ application of this technology for soil remediation (where pHs around neutrality are required) presents important limitations, such as catalyst (iron) availability and oxidant (H2O2) stability. The addition of chelating agents (CAs), forming complexes with Fe and enabling Fenton reactions under these conditions, so-called chelate-modified Fenton process (MF), tries to overcome the challenges identified in conventional Fenton. Despite the growing interest in this technology, there is not yet a critical review compiling the information needed for its real application. The advantages and drawbacks of MF must be clarified, and the recent achievements should be shared with the scientific community. This review provides a general overview of the application of CAs to enhance the Fenton process for the remediation of soils polluted with the most common organic contaminants, especially for a deep understanding of the activation mechanisms and influential factors. The existing shortcomings and research needs have been highlighted. Finally, future research perspectives on the use of CAs in MF and recommendations have been provided.
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Bouzid I, Pino Herrera D, Dierick M, Pechaud Y, Langlois V, Klein PY, Albaric J, Fatin-Rouge N. A new foam-based method for the (bio)degradation of hydrocarbons in contaminated vadose zone. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123420. [PMID: 32763708 DOI: 10.1016/j.jhazmat.2020.123420] [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: 03/03/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
An innovative foam-based method for Fenton reagents (FR) and bacteria delivery was assessed for the in situ remediation of a petroleum hydrocarbon-contaminated unsaturated zone. The surfactant foam was first injected, then reagent solutions were delivered and propagated through the network of foam lamellae with a piston-like effect. Bench-scale experiments demonstrated the feasibility of the various treatments with hydrocarbon (HC) removal efficiencies as high as 96 %. Compared to the direct injection of FR solutions, the foam-based method led to larger radii of influence and more isotropic reagents delivery, whereas it did not show any detrimental effect regarding HC oxidation. Despite 25 % of HCs were expelled from the treated zone because of high foam viscosity, average degradation rates were increased by 20 %. At field-scale, foam and reagent solutions injections in soil were tracked both using visual observation and differential electric resistivity tomography. The latter demonstrated the controlled delivery of the reactive solutions using the foam-based method. Even if the foam-based method duration is about 5-times longer than the direct injection of amendment solutions, it provides important benefits, such as the confinement of harmful volatile hydrocarbons during Fenton treatments, the enhanced reagents delivery and the 30 % lower consumption of the latter.
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Affiliation(s)
- I Bouzid
- Université de Bourgogne Franche-Comté-Besançon, Institut UTINAM-UMR CNRS 6213, 16, route de Gray, 25030, Besançon, France
| | - D Pino Herrera
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (LGE), EA4508, UPEM, 77454, Marne-la-Vallée, France
| | - M Dierick
- REMEA, 22 Rue Lavoisier, 92000 Nanterre, France
| | - Y Pechaud
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (LGE), EA4508, UPEM, 77454, Marne-la-Vallée, France
| | - V Langlois
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (LGE), EA4508, UPEM, 77454, Marne-la-Vallée, France
| | - P Y Klein
- REMEA, 22 Rue Lavoisier, 92000 Nanterre, France
| | - J Albaric
- Laboratoire de Chrono-Environnement, UMR CNRS 6249, Université de Bourgogne, Franche-Comté, France
| | - N Fatin-Rouge
- Université de Bourgogne Franche-Comté-Besançon, Institut UTINAM-UMR CNRS 6213, 16, route de Gray, 25030, Besançon, France.
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Cavalcanti JVFL, Fraga TJM, Loureiro Leite MDA, Dos Santos E Silva DF, de Lima VF, Schuler ARP, do Nascimento CWA, da Motta Sobrinho MA. In-depth investigation of Sodium percarbonate as oxidant of PAHs from soil contaminated with diesel oil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115832. [PMID: 33120152 DOI: 10.1016/j.envpol.2020.115832] [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: 05/22/2020] [Revised: 09/04/2020] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
Sodium percarbonate (SPC, 2Na2CO3∙3H2O2), is a compound that can be used under multiple environmental applications. In this work, SPC was employed as oxidant in the treatment of soil contaminated with diesel oil. The soil samples were collected during the earthmoving stage of RNEST Oil Refinery (Petrobras), Brazil. Then, the samples were air-dried, mixed and characterized. Subsequently, raw soil was contaminated with diesel and treated by photo-Fenton reaction (H2O2/Fe2+/UV). SPC played a significant role in the generation of hydroxyl radicals under the catalytic effect of ferrous ions (Fe2+), hydrogen peroxide (H2O2) and radiation. These radicals provoked the photodegradation of polycyclic aromatic hydrocarbons (PAHs), in the soil remediation. A factorial design 33 was carried out to assess the variables which most influenced the decrease in total organic carbon (TOC). The study was performed with the following variables: initial concentration of [H2O2] and [Fe2+], between 190.0 and 950.0 mmol L-1 and 0.0-14.4 mmol L-1, respectively. UV radiation was supplied from sunlight, blacklight lamps, and system without radiation. All experiments were performed with 5.0 g of contaminated soil in 50.0 mL of solution. The initial concentration of Fe2+ showed the statistically most significant effect. The oxidation efficiency evaluated in the best condition showed a decrease from 34,765 mg kg-1 to 15,801 mg kg-1 in TOC and from 85.750 mg kg-1 to 20.770 mg kg-1 in PAHs content. Moreover, the sums of low and high molecular weight polycyclic aromatic hydrocarbons (LMW-PAHs and HMW-PAHs) were 19.537 mg kg-1 and 1.233 mg kg-1, respectively. Both values are within the limits recommended by the United Sates Environmental Protection Agency (USEPA) and evidenced the satisfactory removal of PAHs from contaminated soil, being an alternative to classic oxidation protocols.
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Affiliation(s)
| | - Tiago José Marques Fraga
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil.
| | - Mirella de Andrade Loureiro Leite
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | - Daniella Fartes Dos Santos E Silva
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | - Valmir Félix de Lima
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | - Alexandre Ricardo Pereira Schuler
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | | | - Maurício Alves da Motta Sobrinho
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil.
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Mazarji M, Minkina T, Sushkova S, Antonenko E, Mandzhieva S, Dudnikova T. Impact of humic acid on degradation of benzo(a)pyrene polluted Haplic Chernozem triggered by modified Fenton-like process. ENVIRONMENTAL RESEARCH 2020; 190:109948. [PMID: 32750554 DOI: 10.1016/j.envres.2020.109948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/10/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
In this study, the applicability of a modified Fenton reaction for remediation of polycyclic aromatic hydrocarbons (PAHs) was demonstrated in chernozem soil. The main aim was to investigate the impact of variation of humic acid (HA) on the modified Fenton capabilities to degrade of benzo(a)pyrene (BaP). Experimental was designed with two independent variables, including hydrogen peroxide (H2O2) and hematite (α-Fe2O3), to determine the most effective BaP treatment conditions with exploring natural and an extra added amount of HA. For modified Fenton reaction at Haplic Chernozem, the best BaP degradation conditions resulted in an overall degradation of 68% with the following conditions: 0.95 M H2O2; 17.54 mg/g hematite; pH 7.8 without adjustment; 24 h; unsaturated (soil: water ratio 1:0.5). In the soil supplemented with 1% HA, Fenton-like reaction was found to perform better and resulted in 76% BaP degradation with less amount of hematite dosage (16.71 mg). The fact that HA, a significant class of naturally occurring compounds in soil, supports the Fenton reaction has strong relevance in the field of enhancing PAHs degradation field to obtain a more economical route.
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Affiliation(s)
- Mahmoud Mazarji
- Southern Federal University, Rostov-on-Don, Russian Federation.
| | - Tatiana Minkina
- Southern Federal University, Rostov-on-Don, Russian Federation.
| | | | - Elena Antonenko
- Southern Federal University, Rostov-on-Don, Russian Federation
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Levy L, Gurov A, Radian A. The effect of gallic acid interactions with iron-coated clay on surface redox reactivity. WATER RESEARCH 2020; 184:116190. [PMID: 32711224 DOI: 10.1016/j.watres.2020.116190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Adsorption and redox reactions between organic matter and natural reactive surfaces have a significant impact on pollutant sequestration and transformation, and on the effectivity of water and soil remediation practices. Herein, the interactions between an organic phenolic acid, gallic acid (GA), and clay coated with iron oxides (FeOx-MMT), were explored. Adsorption and desorption experiments revealed that GA has a higher affinity for FeOx-MMT than for native clay. The adsorption to FeOx-MMT was irreversible and only slightly affected by salinity, suggesting strong inner-sphere complexation. The GA-FeOx-MMT complex was characterized using cyclic-voltammetry, UV-Vis spectroscopy, FTIR, and XPS measurements. The results showed oxidation and transformation of GA on the surface and a considerable reduction of the surface iron. The resulting GA-FeOx-MMT complex had increased catalytic properties, enhancing hydrogen peroxide decomposition, and creating significantly more radicals than FeOx-MMT and raw clay. This led to the destruction of GA on the surface of the clay-iron complex, resulting in loss of activity over time. Our findings suggest a correlation between overall GA adsorption, consequent iron reduction and oxidant decomposition. This means that in systems where such constituents are present, these types of interactions need to be taken into consideration in terms of predicting the fate of pollutants in the environment, and for properly evaluating soil and water chemical treatment processes.
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Affiliation(s)
- Lior Levy
- Civil and Environmental Engineering Faculty, Technion, Haifa, 32000, Israel
| | - Alexandra Gurov
- Civil and Environmental Engineering Faculty, Technion, Haifa, 32000, Israel
| | - Adi Radian
- Civil and Environmental Engineering Faculty, Technion, Haifa, 32000, Israel.
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10
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Abass OK, Zhang K. Nano-Fe mediated treatment of real hydraulic fracturing flowback and its practical implication on membrane fouling in tandem anaerobic-oxic membrane bioreactor. JOURNAL OF HAZARDOUS MATERIALS 2020; 395:122666. [PMID: 32315793 DOI: 10.1016/j.jhazmat.2020.122666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/30/2020] [Accepted: 04/04/2020] [Indexed: 06/11/2023]
Abstract
The rising water-use intensity, and lack of cost-effective treatment strategy and reuse of hydraulic fracturing flowback (HFF) has become an increasing cause of concern. The present work evaluates the integration of parallel sets of tandem anaerobic-oxic membrane bioreactor (AMBR) with and without nano-Fe for treatment and reuse of real HFF obtained from Ordos Basin, China. Treatment efficiencies in terms of organic conversions, micro-pollutants degradation, resource recovery, and effects of nano-Fe release on membrane fouling were evaluated. Nano-Fe mediated AMBR (FAMBR) system effectively reduce target micro-pollutants (such as Acenaphthylene) at 94.4 % compared to the parallel AMBR system (17.1 % without nano-Fe). Moreover, recovery of potential economic chemicals like Al and P (1.0 and 0.6 mg/g spent nano-Fe) availed using FAMBR system. However, colonization of FAMBR membrane surface by Fe-protein/peptide hydroxocomplexes initiated by Fe-catalyzed microbial extrusions present a huge fouling challenge relative to the AMBR system. Additional evidences from microscopic/spectroscopic analysis of the FAMBR membrane system revealed that despite having a promising outlook, mediation of nano-Fe with AMBR system might result in a major fouling event during HFF treatment. Engineered design of nano-Fe to reduced leached nano-Fe ions in pre-treatment step prior to AMBR treatment system may be of potential research consideration.
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Affiliation(s)
- Olusegun K Abass
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore.
| | - Kaisong Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Xiamen 361021, China.
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11
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Abdollahinejad B, Pasalari H, Jafari AJ, Esrafili A, Farzadkia M. Bioremediation of diesel and gasoline-contaminated soil by co-vermicomposting amended with activated sludge: Diesel and gasoline degradation and kinetics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114584. [PMID: 32320891 DOI: 10.1016/j.envpol.2020.114584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/23/2020] [Accepted: 04/09/2020] [Indexed: 05/06/2023]
Abstract
Present study aims to examine the efficiency of co-vermicomposting amended with activated sludge and E. fetida earthworm for bioremediation of diesel and gasoline from contaminated soil. The diesel and gasoline removal efficiency and degradation rates coefficients were estimated with gas chromatography (GC) analysis and first-order kinetics. The removal of gasoline and diesel in different co-vermicomposting processes with and without E. fetida ranged between 65-100% and 24.94-63.93%, respectively within 90- day experiment. Removal of gasoline and diesel increased in soil with addition of earthworm (E. fetida); higher degradation rate coefficients (k) were observed for co-vermicomposting with earthworm compared with co-vermicomposting processes. The highest k (0.014) for diesel degradation was estimated for microcosm reactor 4 (R4), where high numbers of E. fetida accelerate the less biodegradable organic contaminant from the soil matrices. The reasonable survival rates of earthworms in exposure to high concentration of petroleum-derivatives contaminated soils indicated increased activity of ligninolytic diesel-degrading earthworms and microorganisms. Therefore, co-vermicomposting amended with activated sludge is suggested as feasible and promising technologies for bioremediation of high content of organic contaminants from the soil matrices.
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Affiliation(s)
- Behnaz Abdollahinejad
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, IR, Iran
| | - Hasan Pasalari
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, IR, Iran
| | - Ahmad Jonidi Jafari
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, IR, Iran
| | - Ali Esrafili
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, IR, Iran
| | - Mahdi Farzadkia
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, IR, Iran.
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12
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Naeem U, Qazi MA. Leading edges in bioremediation technologies for removal of petroleum hydrocarbons. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27370-27382. [PMID: 31392621 DOI: 10.1007/s11356-019-06124-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 07/29/2019] [Indexed: 05/21/2023]
Abstract
There is a worldwide concern regarding soil pollution caused by contamination of petroleum hydrocarbon, released during oil processing or production. Once a spill occurs, it disturbs the marine and freshwater ecosystem and greatly threatens human health. It usually requires complex technologies to remove it from soil. Petroleum hydrocarbons contain a range of chemicals which are extremely toxic and carcinogenic in nature. Although physical or chemical methods are widely employed for remediation, numerous studies revealed that bioremediation is a sustainable approach. Bioremediation is often preferred as clean and carbon-neutral solution. This review aims to provide series of sustainable solution for petroleum hydrocarbon degradation without exploiting the environment as well as opportunity to reuse treated media. Integrated and enhanced bioremediation technologies are more effective than natural degradation of petroleum hydrocarbons in terms of shorter time period and percent removal efficiency. It comprehensively illustrates bioremediation assisted with bacteria, fungi, and algae either by integrated technologies or by enhancing the process. Most recent application methods of petroleum hydrocarbon bioremediation (in situ and ex situ) are also reported. There is dire need to explore different cost-effective biotechnological resources for degradation of petroleum hydrocarbon by the screening of novel microbial strains or by the creation of genetically engineered bacteria to survive in harsh environment.
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Affiliation(s)
- Urooj Naeem
- Sustainable Development Study Center, Government College University, Lahore, Pakistan.
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13
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Johansson C, Bataillard P, Biache C, Lorgeoux C, Colombano S, Joubert A, Pigot T, Faure P. Ferrate VI oxidation of polycyclic aromatic compounds (PAHs and polar PACs) on DNAPL-spiked sand: degradation efficiency and oxygenated by-product formation compared to conventional oxidants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:704-716. [PMID: 31808080 DOI: 10.1007/s11356-019-06841-0] [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: 07/15/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
In situ chemical oxidations are known to remediate PAH contaminations in groundwater and soils. In this study, batch-scale oxidations aim to compare the PAC (polycyclic aromatic compound) degradation of three oxidation processes traditionally applied for soil treatment: permanganate, heat-activated persulfate (60 °C) and Fenton-like activated by magnetite, to results obtained with ferrates (FeVI). Widely studied for water treatments, ferrates are efficient on a wide range of pollutants with the advantage of producing nontoxic ferric sludge after reaction. However, fewer works focus on their action on soil, especially on semi-industrial grade ferrates (compatible with field application). Oxidations were carried out on sand spiked with dense non-aqueous phase liquid (DNAPL) sampled in the groundwater of a former coking plant. Conventional 16 US-EPA PAHs and polar PACs were monitored, especially potential oxygenated by-products that can be more harmful than parent-PAHs. After seven reaction days, only the Fenton-like showed limited degradation. Highest efficiencies were obtained for heat-activated persulfate with no O-PAC ketones formed. Permanganate gave important degradation, but ketones were generated in large amount. The tested ferrates not only gave slightly lower yields due to their auto-decomposition but also induced O-PAC ketone production, suggesting a reactional pathway dominated by oxidoreductive electron transfer, rather than a radical one.
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Affiliation(s)
- Clotilde Johansson
- CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, 54506, Vandœuvre-lès-Nancy, France
- Bureau de Recherches Géologiques et Minières (BRGM), 45060, Orléans, France
- CNRS, CREGU, GeoRessources, Université de Lorraine, 54506, Vandœuvre-lès-Nancy, France
- SERPOL, 2 chemin du Génie, BP 80, 69633, Vénissieux, France
| | | | - Coralie Biache
- CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, 54506, Vandœuvre-lès-Nancy, France
| | - Catherine Lorgeoux
- CNRS, CREGU, GeoRessources, Université de Lorraine, 54506, Vandœuvre-lès-Nancy, France
| | - Stéfan Colombano
- Bureau de Recherches Géologiques et Minières (BRGM), 45060, Orléans, France
| | | | - Thierry Pigot
- CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM UMR CNRS 5254), Université de Pau & Pays Adour, 64000, Pau, France
| | - Pierre Faure
- CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, 54506, Vandœuvre-lès-Nancy, France.
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14
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Impact of a Modified Fenton Process on the Degradation of a Component Leached from Microplastics in Bottom Sediments. Catalysts 2019. [DOI: 10.3390/catal9110932] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
This paper describes work to assess the possibility of a modified Fenton process being used to remove the hard-to-degrade plasticizer di(2-ethylhexyl) phthalate (DEHP) from the bottom sediments of a reservoir. The modifications in question entail iron(II) ions being replaced by iron(III), as well as facilitation of the process using a chelating agent. Analysis further revolved around the impact of such factors as amounts of reagents, reaction of the environment, initial contents of the contaminant, and the presence of other “competing” contaminants also of a hard-to-decompose nature. As the maximum efficiency of DEHP removal obtained did not exceed 30%, the low susceptibility to degradation is made clear, as is the need for earlier desorption of the contaminant from the matrix. The effect of the modified Fenton process on the content of organic matter and dissolved organic carbon was also considered, as was the tendency to cause selected metals and plant nutrients to leach from bottom sediments.
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15
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Yi H, Li M, Huo X, Zeng G, Lai C, Huang D, An Z, Qin L, Liu X, Li B, Liu S, Fu Y, Zhang M. Recent development of advanced biotechnology for wastewater treatment. Crit Rev Biotechnol 2019; 40:99-118. [PMID: 31690134 DOI: 10.1080/07388551.2019.1682964] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The importance of highly efficient wastewater treatment is evident from aggravated water crises. With the development of green technology, wastewater treatment is required in an eco-friendly manner. Biotechnology is a promising solution to address this problem, including treatment and monitoring processes. The main directions and differences in biotreatment process are related to the surrounding environmental conditions, biological processes, and the type of microorganisms. It is significant to find suitable biotreatment methods to meet the specific requirements for practical situations. In this review, we first provide a comprehensive overview of optimized biotreatment processes for treating wastewater during different conditions. Both the advantages and disadvantages of these biotechnologies are discussed at length, along with their application scope. Then, we elaborated on recent developments of advanced biosensors (i.e. optical, electrochemical, and other biosensors) for monitoring processes. Finally, we discuss the limitations and perspectives of biological methods and biosensors applied in wastewater treatment. Overall, this review aims to project a rapid developmental path showing a broad vision of recent biotechnologies, applications, challenges, and opportunities for scholars in biotechnological fields for "green" wastewater treatment.
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Affiliation(s)
- Huan Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Minfang Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Xiuqin Huo
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Ziwen An
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Lei Qin
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Xigui Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Bisheng Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Shiyu Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Yukui Fu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
| | - Mingming Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China.,Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, China
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16
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Hydrocarbon contaminated soil remediation: A comparison between Fenton, sono-Fenton, photo-Fenton and sono-photo-Fenton processes. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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17
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Ouriache H, Arrar J, Namane A, Bentahar F. Treatment of petroleum hydrocarbons contaminated soil by Fenton like oxidation. CHEMOSPHERE 2019; 232:377-386. [PMID: 31158632 DOI: 10.1016/j.chemosphere.2019.05.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
Experimental tests were carried out in solid phase reactors on a microcosm scale, to removal old petroleum pollution by Fenton like oxidation process. In order to optimize the process, parametric study and statistically designed experiment have been undertaken by considering the amount influence of hydrogen peroxide (H2O2), endogenous and zero-valent iron (Fe) and ethylene diamine tetraacetic acid (EDTA) as chelating agent. The measurement of residual total petroleum hydrocarbons for different H2O2/Fe molar ratios and pH in the vicinity of neutrality highlighted oxidation rates ranging between 29.0 and 39.3%. The Fenton like (FL) oxidation was optimal for H2O2/Fe molar ratio of 15/4. The use EDTA led to result up 72.2% for H2O2/total Fe/EDTA molar ratio of 15/4/4 after 48 h of treatment. The statistical analysis of data by factorial design, has allowed the modeling of Fenton like process performances in the operating domain. It showed that hydrogen peroxide amount, interaction effects of oxidant-catalyst, catalyst-chelating agent, and oxidant-catalyst-chelating agent, were the influential parameters. Moreover, these results suggest that endogenous iron could be used as a source of iron in the presence of the chelating agent to activate FL oxidation. A better accuracy (80.0%) was obtained by statistical analysis for H2O2/endogenous Fe/EDTA molar ratio of 20/1/1.
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Affiliation(s)
- H Ouriache
- Laboratoire des Sciences et Techniques de l'Environnement (LSTE), Ecole Nationale Polytechnique, Avenue Hassen Badi, BP 182 El Harrach, 16110, Algiers, Algeria
| | - J Arrar
- Laboratoire des Sciences et Techniques de l'Environnement (LSTE), Ecole Nationale Polytechnique, Avenue Hassen Badi, BP 182 El Harrach, 16110, Algiers, Algeria.
| | - A Namane
- Laboratoire des Sciences et Techniques de l'Environnement (LSTE), Ecole Nationale Polytechnique, Avenue Hassen Badi, BP 182 El Harrach, 16110, Algiers, Algeria
| | - F Bentahar
- Laboratoire des Phénomènes de Transfert, Faculté de Génie Mécanique et Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene, BP 32 El Alia Bab Ezzaouar, 16111, Algiers, Algeria
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18
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Abstract
The availability of bound residues of polycyclic aromatic hydrocarbons (PAHs), in reference to their parent compounds, can be enhanced by microbial activity and chemical reactions, which pose severe risks for the ecosystems encompassing contaminated soils. Considerable attention has been raised on how to remove these bound residues from PAH-contaminated soils. This paper provides a novel application of Fenton oxidation in the removal of bound residues of model PAHs, such as naphthalene (NAP), acenaphthene (ACP), fluorene (FLU) and anthracene (ANT), from naturally contaminated soils. The citric acid-enhanced Fenton treatment resulted in the degradation of bound PAH residues that followed pseudo-first-order kinetics, with rate constants within 4.22 × 10−2, 1.25 × 10−1 and 2.72 × 10−1 h−1 for NAP, FLU, and ANT, respectively. The reactivity of bound PAH residues showed a correlation with their ionization potential (IP) values. Moreover, the degradation rate of bound PAH residues was significantly correlated with H2O2-Fe2+ ratio (m/m) and H2O2 concentrations. The highest removal efficiencies of bound PAH residues was up to 89.5% with the treatment of chelating agent oxalic acid, which was demonstrated to be superior to other acids, such as citric acid and hydrochloric acid. This study provides valuable insight into the feasibility of citric acid-Fenton and oxalic acid-Fenton treatments in rehabilitating bound PAH residues in contaminated soils.
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19
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Hydrolyzed polyacrylamide biotransformation in an up-flow anaerobic sludge blanket reactor system: key enzymes, functional microorganisms, and biodegradation mechanisms. Bioprocess Biosyst Eng 2019; 42:941-951. [DOI: 10.1007/s00449-019-02094-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 02/17/2019] [Indexed: 10/27/2022]
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20
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Zhang Y, Zhou M. A critical review of the application of chelating agents to enable Fenton and Fenton-like reactions at high pH values. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:436-450. [PMID: 30261437 DOI: 10.1016/j.jhazmat.2018.09.035] [Citation(s) in RCA: 192] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/31/2018] [Accepted: 09/12/2018] [Indexed: 05/04/2023]
Abstract
To overcome the drawback of low pH requirement of the classical Fenton reaction, researchers have applied chelating agents to form complexes with Fe and enable Fenton reaction at high pHs, which is reviewed in this article. The chelating agents reviewed include humic substances, polycarboxylates, aminopolycarboxylic acids, and polyoxometalates. Ligands affect the reactivity of Fe-complexes by changing their redox potentials, promoting their reaction with H2O2, and competing with target contaminants for the oxidative species. Fe(III)-complexes are reduced to Fe(II)-complexes by O2- not H2O2, as indicated by their redox potentials. The stability constants of Fe-complexes increase with increasing pKa values of the corresponding ligands and also with increasing charge density of the metal ions. A higher stability constant of Fe(III)-complex indicates higher reaction rate of corresponding Fe(II)-complex with H2O2 and lower reduction rate of Fe(III)-complex to Fe(II)-complex. OH, O2-, and ferryl species were reported to be the reactive species on the contaminant removal in the chelate-modified Fenton process. The generation of these species depends on the chelating agents and reaction conditions. The process is very efficient in degrading contaminants, indicating a potential treatment approach for the pollution remediation at natural pH.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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21
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Dias IN, Bassin JP, Dezotti M, Vilar VJP. Fluorene oxidation by solar-driven photo-Fenton process: toward mild pH conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27808-27818. [PMID: 30132283 DOI: 10.1007/s11356-018-2939-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are on the list of priority pollutants to be eliminated from the environment due to their carcinogenic and mutagenic action, chemical stability, and resistance to biodegradation. The aim of this study was to evaluate the degradation of fluorene, a well-known PAH, in aqueous solutions (0.03 and 0.08 mg L-1), by means of a solar-driven conventional (PF) and modified photo-Fenton mediated by ferrioxalate complexes (PFF). Photolysis was also employed for comparison purposes. PF reaction was evaluated at different pH values (2.8, 3.5, and 4.0) and iron concentrations (2, 5, 10, and 20 mg L-1). On the other hand, PFF studies were conducted at mild pH conditions (4.0, 5.0, and 6.0) and iron content of 2 mg L-1, keeping initial iron/oxalate molar ratio at 1:3. In both PF and PFF, the initial hydrogen peroxide/iron molar ratio was maintained at 5. In the presence of methanol as cosolvent for fluorene dissolution, the PF reaction was hampered and no consumption of H2O2 was observed during the reaction carried out at constant pH (2.8). This led to low degradation rates, similar to those achieved by photolysis. Under the same pH but using acetonitrile as cosolvent for fluorene dissolution, fluorene degradation was found to be proportional to the iron content used in the PF experiments. On the other hand, at an invariable iron concentration of 5 mg Fe2+ L-1, the increase in pH was accompanied by a decrease in the molar fraction of the most photoactive iron complex (FeOH2+) and ferric hydroxides precipitation, leading to a reduction in the fluorene degradation rate. With regard to the PFF tests, similar fluorene degradation performance was achieved at pH 4 and 5, while at pH 6 iron precipitation became relevant and the degradation rate was slightly slower. PFF has shown to be more efficient than the PF under the same pH (4) and iron concentration (2 mg L-1). Moreover, even at near neutral pH (6), fluorine degradation was shown to be feasible by using ferrioxalate complexes.
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Affiliation(s)
- Isabelli N Dias
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
- School of Chemistry, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 149, Rio de Janeiro, RJ, 21941-909, Brazil.
| | - João Paulo Bassin
- Chemical Engineering Program - COPPE, Federal University of Rio de Janeiro, P.O. Box 68502, Rio de Janeiro, RJ, 21941-972, Brazil
| | - Márcia Dezotti
- Chemical Engineering Program - COPPE, Federal University of Rio de Janeiro, P.O. Box 68502, Rio de Janeiro, RJ, 21941-972, Brazil
| | - Vítor J P Vilar
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
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22
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Gitipour S, Sorial GA, Ghasemi S, Bazyari M. Treatment technologies for PAH-contaminated sites: a critical review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:546. [PMID: 30140952 DOI: 10.1007/s10661-018-6936-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 08/15/2018] [Indexed: 06/08/2023]
Abstract
To reduce environmental and human health risks of contaminated sites, having a comprehensive knowledge about the polycyclic aromatic hydrocarbon (PAH) removal processes is crucial. PAHs are contaminants which are highly recognized to pose threats to humans, animals, and plants. PAHs are hydrophobic and own two or more benzene rings, and hence are resistant to structural degradation. There are various techniques which have been developed to treat PAH-contaminated soil. Four distinct processes to remove PAHs in the contaminated soil, thought to be more effective techniques, are presented in this review: soil washing, chemical oxidation, electrokinetic, phytoremediation. In a surfactant-aided washing process, a removal rate of 90% was reported. Compost-amended phytoremediation treatment presented 58-99% removal of pyrene from the soil in 90 days. Chemical oxidation method was able to reach complete conversion for some PAHs. In electrokinetic treatment, researchers have achieved reliable results in removal of some specific PAHs. Researchers' innovations in novel studies and advantages/disadvantages of the techniques are also investigated throughout the paper. Finally, it should be noted that an exclusive method or a combination of methods by themselves are not the key to be employed for remediation of every contaminated site but the field characteristics are also essential in selection of the most appropriate decontamination technique(s). The remedy for selection criteria is based on PAH concentrations, site characteristics, costs, shortcomings, and advantages.
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Affiliation(s)
- Saeid Gitipour
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, No.25 Ghods St., Enghelab Ave, PO Box 81948/43995, Tehran, Iran.
| | - George A Sorial
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| | - Soroush Ghasemi
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, No.25 Ghods St., Enghelab Ave, PO Box 81948/43995, Tehran, Iran
| | - Mahdieh Bazyari
- HSE Group, Graduate Faculty of Environment, University of Tehran, Tehran, Iran
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23
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Al Shra’ah A, Georghiou PE, Helleur R, MacQuarrie SL, Zhao Y, Mkandawire M. Optimizing Reductive Degradation of PAHs Using Anhydrous Ethanol with Magnesium Catalyzed by Glacial Acetic Acid. ACS OMEGA 2018; 3:3554-3561. [PMID: 31458607 PMCID: PMC6641262 DOI: 10.1021/acsomega.8b00247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 03/14/2018] [Indexed: 06/10/2023]
Abstract
Targeted degradation of individual polycyclic aromatic hydrocarbon (PAH) constituents like anthracene, may offer cost effective and efficient cleaning of coal tar-contaminated sites. Thus, a reductive degradation procedure of anthracene using activated magnesium with anhydrous ethanol at room temperature was developed and optimized. To determine the optimum conditions for anthracene, such as effective magnesium concentrations, glacial acetic acid volumes, and exposure time for the anthracene reduction, the experiments were designed using the response surface methodology based on the central composite design. The design also minimized the number of experiments. The main product from anthracene reduction is 9,10-dihyrdoanthracene. Optimum conditions for 98% degradation capacity of anthracene (2.80 × 10-3 mmol) were 30 mg of Mg powder (1.20 mmol), 60 μL of glacial acetic acid (1.05 mmol), and 30 min exposure time. When the optimized method was tested on the coal tar specimen, twice as many reagents (i.e., Mg and glacial acetic acid) were required to obtain a 90% degradation of anthracene and fluoranthene from the coal tar. This method of using activated Mg and anhydrous ethanol selectively reduces PAHs in coal tar; in particular anthracene and fluoranthene are most efficiently removed.
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Affiliation(s)
- Ahmad Al Shra’ah
- Department
of Chemistry, Memorial University of Newfoundland, 230 Elizabeth Avenue, St. John’s, Newfoundland and Labrador A1B 3X9, Canada
| | - Paris E. Georghiou
- Department
of Chemistry, Memorial University of Newfoundland, 230 Elizabeth Avenue, St. John’s, Newfoundland and Labrador A1B 3X9, Canada
| | - Robert Helleur
- Department
of Chemistry, Memorial University of Newfoundland, 230 Elizabeth Avenue, St. John’s, Newfoundland and Labrador A1B 3X9, Canada
| | - Stephanie L. MacQuarrie
- Department
of Chemistry, Memorial University of Newfoundland, 230 Elizabeth Avenue, St. John’s, Newfoundland and Labrador A1B 3X9, Canada
- Department of Chemistry and Verschuren Centre for Sustainability in Energy
and the Environment, Cape Breton University, 1250 Grand Lake Road, Sydney, Nova Scotia B1P 6L2, Canada
| | - Yuming Zhao
- Department
of Chemistry, Memorial University of Newfoundland, 230 Elizabeth Avenue, St. John’s, Newfoundland and Labrador A1B 3X9, Canada
| | - Martin Mkandawire
- Department of Chemistry and Verschuren Centre for Sustainability in Energy
and the Environment, Cape Breton University, 1250 Grand Lake Road, Sydney, Nova Scotia B1P 6L2, Canada
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24
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Huang D, Hu C, Zeng G, Cheng M, Xu P, Gong X, Wang R, Xue W. Combination of Fenton processes and biotreatment for wastewater treatment and soil remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 574:1599-1610. [PMID: 27608610 DOI: 10.1016/j.scitotenv.2016.08.199] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/29/2016] [Accepted: 08/29/2016] [Indexed: 05/15/2023]
Abstract
There is a continuously increasing worldwide concern for the development of wastewater and contaminated soil treatment technologies. Fenton processes and biological treatments have long been used as common technologies for treating wastewater and polluted soil but they still need to be modified because of some defects (high costs of Fenton process and long remediation time of biotreatments). This work first briefly introduced the Fenton technology and biotreatment, and then discussed the main considerations in the construction of a combined system. This review shows a critical overview of recent researches combining Fenton processes (as pre-treatment or post-treatment) with bioremediation for treatment of wastewater or polluted soil. We concluded that the combined treatment can be regarded as a novel and competitive technology. Furthermore, the outlook for potential applications of this combination in different polluted soil and wastewater, as well as the mechanism of combination was also discussed.
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Affiliation(s)
- Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China.
| | - Chanjuan Hu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China.
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Xiaomin Gong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Rongzhong Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Wenjing Xue
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
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Usman M, Hanna K, Haderlein S. Fenton oxidation to remediate PAHs in contaminated soils: A critical review of major limitations and counter-strategies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 569-570:179-190. [PMID: 27341118 DOI: 10.1016/j.scitotenv.2016.06.135] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/01/2016] [Accepted: 06/17/2016] [Indexed: 06/06/2023]
Abstract
Fenton oxidation constitutes a viable remediation strategy to remove polycyclic aromatic hydrocarbons (PAHs) in contaminated soils. This review is intended to illustrate major limitations associated with this process like acidification, PAH unavailability, and deterioration of soil quality along with associated factors, followed by a critical description of various developments to overcome these constraints. Considering the limitation that its optimal pH is around 3, traditional Fenton treatment could be costly, impractical in soil due to the high buffering capacity of soils and associated hazardous effects. Use of various chelating agents (organic or inorganic) allowed oxidation at circumneutral pH but factors like higher oxidant demand, cost and toxicity should be considered. Another alternative is the use of iron minerals that can catalyze Fenton-like oxidation over a wide range of pH, but mobility of these particles in soils (i.e. saturated and unsaturated zones) should be investigated prior to in-situ applications. The PAH-unavailability is the crucial limitation hindering their effective degradation. Research data is compiled describing various strategies to address this issue like the use of availability enhancement agents, extraction or thermal pretreatment. Last section of this review is devoted to describe the effects of various developments in Fenton treatment onto soil quality and native microbiota. Finally, research gaps are discussed to suggest future directions in context of applying Fenton oxidation to remediate contaminated soils.
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Affiliation(s)
- M Usman
- Department of Geosciences, Center for Applied Geosciences, University of Tübingen, 72074 Tübingen, Germany; Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan.
| | - K Hanna
- Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6226, 11 Allée de Beaulieu, 35708 Rennes Cedex 7, France
| | - S Haderlein
- Department of Geosciences, Center for Applied Geosciences, University of Tübingen, 72074 Tübingen, Germany
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Usman M. Comment on "A comprehensive guide of remediation technologies for oil contaminated soil - Present works and future directions". MARINE POLLUTION BULLETIN 2016; 110:619-620. [PMID: 27381984 DOI: 10.1016/j.marpolbul.2016.06.097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 06/27/2016] [Indexed: 06/06/2023]
Affiliation(s)
- M Usman
- Center for Applied Geoscience, University of Tübingen, 72074 Tübingen, Germany; Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad -38040, Pakistan.
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Ranc B, Faure P, Croze V, Simonnot MO. Selection of oxidant doses for in situ chemical oxidation of soils contaminated by polycyclic aromatic hydrocarbons (PAHs): A review. JOURNAL OF HAZARDOUS MATERIALS 2016; 312:280-297. [PMID: 27043880 DOI: 10.1016/j.jhazmat.2016.03.068] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 03/23/2016] [Accepted: 03/25/2016] [Indexed: 06/05/2023]
Abstract
In situ chemical oxidation (ISCO) is a promising alternative to thermal desorption for the remediation of soils contaminated with organic compounds such as polycyclic aromatic hydrocarbons (PAHs). For field application, one major issue is the selection of the optimal doses of the oxidizing solution, i.e. the oxidant and appropriate catalysts and/or additives. Despite an extensive scientific literature on ISCO, this choice is very difficult because many parameters differ from one study to another. The present review identifies the critical factors that must be taken into account to enable comparison of these various contributions. For example, spiked soils and aged, polluted soils cannot be compared; PAHs freshly spiked into a soil are fully available for degradation unlike a complex mixture of pollutants trapped in a soil for many years. Another notable example is the high diversity of oxidation conditions employed during batch experiments, although these affect the representativeness of the system. Finally, in this review a methodology is also proposed based on a combination of the stoichiometric oxidant demand of the organic pollutants and the design of experiments (DOE) in order to allow a better comparison of the various studies so far reported.
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Affiliation(s)
- B Ranc
- Université de Lorraine, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillette, 54506 Vandœuvre-lès-Nancy cedex, France; CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillettes, 54506 Vandœuvre-lès-Nancy cedex, France; ICF Environnement, 14 à 30 rue Alexandre, 92635 Gennevilliers, France; Université de Lorraine, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France; CNRS, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France
| | - P Faure
- Université de Lorraine, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillette, 54506 Vandœuvre-lès-Nancy cedex, France; CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Site Aiguillettes, 54506 Vandœuvre-lès-Nancy cedex, France
| | - V Croze
- ICF Environnement, 14 à 30 rue Alexandre, 92635 Gennevilliers, France
| | - M O Simonnot
- Université de Lorraine, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France; CNRS, Laboratoire Réactions et Génie des Procédés, UMR 7274, 1 rue Grandville, 54001 Nancy cedex, France.
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Roohi P, Fatehifar E, Alizadeh R. Rapid degradation of contaminated soil with 2-methylpropane-2-thiol by H2O2/KMnO4/NaClO system: process modeling and optimization. ASIA-PAC J CHEM ENG 2016. [DOI: 10.1002/apj.2006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pejman Roohi
- Environmental Engineering Research Center (EERC), Faculty of Chemical Engineering; Sahand University of Technology; Sahand New Town Tabriz Iran
| | - Esmaeil Fatehifar
- Environmental Engineering Research Center (EERC), Faculty of Chemical Engineering; Sahand University of Technology; Sahand New Town Tabriz Iran
| | - Reza Alizadeh
- Environmental Engineering Research Center (EERC), Faculty of Chemical Engineering; Sahand University of Technology; Sahand New Town Tabriz Iran
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Shih YJ, Binh NT, Chen CW, Chen CF, Dong CD. Treatability assessment of polycyclic aromatic hydrocarbons contaminated marine sediments using permanganate, persulfate and Fenton oxidation processes. CHEMOSPHERE 2016; 150:294-303. [PMID: 26915591 DOI: 10.1016/j.chemosphere.2016.01.112] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 01/14/2016] [Accepted: 01/26/2016] [Indexed: 06/05/2023]
Abstract
Various chemical oxidation techniques, such as potassium permanganate (KMnO4), sodium persulfate (Na2S2O8), Fenton (H2O2/Fe(2+)), and the modified persulfate and Fenton reagents (activated by ferrous complexes), were carried out to treat marine sediments that were contaminated with polycyclic aromatic hydrocarbons (PAHs) and dredged from Kaohsiung Harbor in Taiwan. Experimental results revealed that KMnO4 was the most effective of the tested oxidants in PAH degradation. Owing to the high organic matter content in the sediment that reduced the efficiencies of Na2S2O8 and regular Fenton reactions, a large excess of oxidant was required. Nevertheless, KH2PO4, Na4P2O7 and four chelating agents (EDTA, sodium citrate, oxalic acid, and sodium oxalate) were utilized to stabilize Fe(II) in activating the Na2S2O8 and Fenton oxidations, while Fe(II)-citrate remarkably promoted the PAH degradation. Increasing the molecular weight and number of rings of PAH did not affect the overall removal efficiencies. The correlation between the effectiveness of the oxidation processes and the physicochemical properties of individual PAH was statistically analyzed. The data implied that the reactivity of PAH (electron affinity and ionization potential) affected its treatability more than did its hydrophobicity (Kow, Koc and Sw), particularly using experimental conditions under which PAHs could be effectively oxidized.
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Affiliation(s)
- Yu-Jen Shih
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan
| | - Nguyen Thanh Binh
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan
| | - Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan.
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Li Y, Li F, Li F, Yuan F, Wei P. Effect of the ultrasound-Fenton oxidation process with the addition of a chelating agent on the removal of petroleum-based contaminants from soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:18446-18455. [PMID: 26268625 PMCID: PMC4669372 DOI: 10.1007/s11356-015-5137-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/30/2015] [Indexed: 06/04/2023]
Abstract
The effects of ultrasonic irradiation, the chelating agent modified Fenton reaction, and a combination of ultrasound and the Fenton method in removing petroleum contaminants from a soil were studied. The results showed that the contaminant removal rate of the Fenton treatment combined with an oxalic acid chelating agent was 55.6% higher than that without a chelating agent. The average removal rate of the contaminants using the ultrasound-Fenton treatment was 59.0% higher than that without ultrasonic treatment. A combination of ultrasound and an Fe(2+)/Fe(3+)-oxalate complex-modified Fenton reagent resulted in significantly higher removal rates of n-alkanes (C(n)H(2n+2), n < 28), isoprenoid hydrocarbons, aromatic hydrocarbons, and saturated polycyclic terpenes compared with the ultrasound treatment alone or the Fenton method. The Fenton reaction and the ultrasound-Fenton treatment can unselectively remove multiple components of residual hydrocarbons and a number of benzene rings in polycyclic aromatic hydrocarbons. The chemistry of the heterocyclic compounds and the position and number of substituents can affect the degradation process.
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Affiliation(s)
- Ying Li
- School of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023, People's Republic of China.
| | - Fangmin Li
- School of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023, People's Republic of China.
| | - Fanxiu Li
- Branch Laboratory of Yangtze University, Health Safety and Environment (HSE) Key Laboratory of PetroChina Company Limited, Jingzhou, 434023, People's Republic of China
| | - Fuqian Yuan
- School of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, 434023, People's Republic of China
| | - Pingfang Wei
- Branch Laboratory of Yangtze University, Health Safety and Environment (HSE) Key Laboratory of PetroChina Company Limited, Jingzhou, 434023, People's Republic of China
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31
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He J, Yang X, Men B, Yu L, Wang D. EDTA enhanced heterogeneous Fenton oxidation of dimethyl phthalate catalyzed by Fe 3 O 4 : Kinetics and interface mechanism. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.07.030] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Silva-Castro GA, Uad I, Rodríguez-Calvo A, González-López J, Calvo C. Response of autochthonous microbiota of diesel polluted soils to land-farming treatments. ENVIRONMENTAL RESEARCH 2015; 137:49-58. [PMID: 25486545 DOI: 10.1016/j.envres.2014.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 10/31/2014] [Accepted: 11/03/2014] [Indexed: 06/04/2023]
Abstract
This study investigated the response of autochthonous microorganisms of diesel polluted soils to land-farming treatments. Inorganic NPK (nitrogen, phosphorous, and potassium) fertilizer and Ivey surfactant were applied alone or in combination as biostimulating agents. The study was carried out in experimental separated land-farming plots performed with two soils: a sandy clay soil with low biological activity and a sandy clay soil with higher biological activity, contaminated with two concentrations of diesel: 10,000 and 20,000mgkg(-1). Bacterial growth, dehydrogenase activity and CO2 production were the biological parameters evaluated. Non-metric multidimensional scaling analysis proved that moisture content showed a tendency related to microbial growth and that heterotrophic and degrading microorganisms had the best relationship. Initial biological activity of soil influenced the response with 11.1% of variability attributed to this parameter. Soils with low activity had higher degree of response to nutrient addition.
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Affiliation(s)
| | - Imane Uad
- Institute of Water Research, University of Granada, Spain
| | - Alfonso Rodríguez-Calvo
- Institute of Water Research, University of Granada, Spain; Department of Civil Engineering, University of Granada, Spain
| | - Jesús González-López
- Department of Microbiology, University of Granada, Spain; Institute of Water Research, University of Granada, Spain
| | - Concepción Calvo
- Department of Microbiology, University of Granada, Spain; Institute of Water Research, University of Granada, Spain.
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Gan S, Ng HK. Evaluation of in situ catalysed hydrogen peroxide propagation (CHP) for phenanthrene and fluoranthene removals from soil and its associated impacts on soil functionality. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:2888-2897. [PMID: 24151025 DOI: 10.1007/s11356-013-2207-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 09/30/2013] [Indexed: 06/02/2023]
Abstract
Extensive contamination of soils by highly recalcitrant contaminants such as polycyclic aromatic hydrocarbons (PAHs) is an environmental problem arising from rapid industrialisation. This work focusses on the remediation of soil contaminated with 3- and 4-aromatic ring PAHs (phenanthrene (PHE) and fluoranthene (FLUT)) through catalysed hydrogen peroxide propagation (CHP). In the present work, the operating parameters of the CHP treatment in packed soil column was optimised with central composite design (H2O2/soil 0.081, Fe(3+)/soil 0.024, sodium pyrophosphate (SP)/soil 0.024, pH of SP solution 7.73). The effect of contaminant aging on PAH removals was also investigated. Remarkable oxidative PAH removals were observed for the short aging and extended aging period (up to 86.73 and 70.61 % for PHE and FLUT, respectively). The impacts of CHP on soil biological, chemical and physical properties were studied for both spiked and aged soils. Overall, the soil functionality analyses after the proposed operating condition demonstrated that the values for soil respiration, electrical conductivity, pH and iron precipitation fell within acceptable limits, indicating the compatibility of the CHP process with land restoration.
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Gan S, Yap CL, Ng HK. Investigation of the impacts of ethyl lactate based Fenton treatment on soil quality for polycyclic aromatic hydrocarbons (PAHs)-contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2013; 262:691-700. [PMID: 24121640 DOI: 10.1016/j.jhazmat.2013.09.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 08/27/2013] [Accepted: 09/10/2013] [Indexed: 06/02/2023]
Abstract
This study aims to investigate the impacts of ethyl lactate (EL) based Fenton treatment on soil quality for polycyclic aromatic hydrocarbons (PAHs)-contaminated soils. Accumulation of oxygenated-polycyclic aromatic hydrocarbons (oxy-PAHs) was observed, but quantitative measurement on the most abundant compound 9,10-anthraquinone (ATQ) showed lower accumulation of the compound than that reported for ethanol (ET) based Fenton treatment. In general, as compared to conventional water (CW) based Fenton treatment, the EL based Fenton treatment exerted either a lower or higher negative impact on soil physicochemical properties depending on the property type and shared the main disadvantage of reduced soil pH. For revegetation, EL based Fenton treatment was most appropriately adopted for soil with native pH >/~ 6.2 in order to obtain a final soil pH >/~ 4.9 subject to the soil buffering capacity.
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Affiliation(s)
- Suyin Gan
- Department of Chemical and Environmental Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia.
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Silva-Castro GA, Rodelas B, Perucha C, Laguna J, González-López J, Calvo C. Bioremediation of diesel-polluted soil using biostimulation as post-treatment after oxidation with Fenton-like reagents: assays in a pilot plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 445-446:347-55. [PMID: 23354375 DOI: 10.1016/j.scitotenv.2012.12.081] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 12/21/2012] [Accepted: 12/25/2012] [Indexed: 05/20/2023]
Abstract
The present study focuses on the remediation of diesel-polluted soil using modified Fenton treatment coupled with inorganic NPK fertilizer ("Fenton+NPK"). Studies were carried out in a pilot plant containing 1 m(3) of sandy soil contaminated with 20,000 mg kg(-1) of diesel, placed outdoors at a temperature ranging between 5 and 10 °C. Results showed that NPK-fertilizer as post-treatment stimulated culturable degrading bacteria and enhanced dehydrogenase activity. Fenton+NPK treatment increased total petroleum hydrocarbon (TPH) removal efficacy. Natural attenuation removed 49% of TPH in the surface layer, 23% of TPH in the non-saturated layer and 4% of the TPH in the saturated layer, while the percentage removed of TPH after Fenton+NPK treatment was 58%, 57% and 32% respectively. The results from our study showed that, immediately after soil contamination, occurred a specialization and differentiation of the bacterial community, but after this initial modification, no significant changes of bacterial diversity was observed under natural attenuation conditions. In contrast, when the Fenton's reagent was applied a reduction of the bacterial biodiversity was observed. However, the post-biostimulation did enhance the degrading microbiota and stimulated their degrading biological activity. In conclusion, biostimulation, as a post-treatment step in chemical oxidation, is an effective solution to remediate hydrocarbon-polluted sites.
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Affiliation(s)
- Gloria Andrea Silva-Castro
- Department of Microbiology, Institute of Water Research, University of Granada, Spain, C/Ramón y Cajal no 4, 18071 Granada, Spain.
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