1
|
Lin Y, Qiao J, Sun Y, Dong H. The profound review of Fenton process: What's the next step? J Environ Sci (China) 2025; 147:114-130. [PMID: 39003034 DOI: 10.1016/j.jes.2023.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 07/15/2024]
Abstract
Fenton and Fenton-like processes, which could produce highly reactive species to degrade organic contaminants, have been widely used in the field of wastewater treatment. Therein, the chemistry of Fenton process including the nature of active oxidants, the complicated reactions involved, and the behind reason for its strongly pH-dependent performance, is the basis for the application of Fenton and Fenton-like processes in wastewater treatment. Nevertheless, the conflicting views still exist about the mechanism of the Fenton process. For instance, reaching a unanimous consensus on the nature of active oxidants (hydroxyl radical or tetravalent iron) in this process remains challenging. This review comprehensively examined the mechanism of the Fenton process including the debate on the nature of active oxidants, reactions involved in the Fenton process, and the behind reason for the pH-dependent degradation of contaminants in the Fenton process. Then, we summarized several strategies that promote the Fe(II)/Fe(III) cycle, reduce the competitive consumption of active oxidants by side reactions, and replace the Fenton reagent, thus improving the performance of the Fenton process. Furthermore, advances for the future were proposed including the demand for the high-accuracy identification of active oxidants and taking advantages of the characteristic of target contaminants during the degradation of contaminants by the Fenton process.
Collapse
Affiliation(s)
- Yimin Lin
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Junlian Qiao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yuankui Sun
- Department of Environmental Science, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Hongyu Dong
- Department of Environmental Science, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
| |
Collapse
|
2
|
Liu X, Zhang L, Zhang Q, Li M, Zhao Z, Lin B, Peng J, Shen H, He Q. Fenton-like system of UV/Glucose-oxidase@Kaolin coupled with organic green rust: UV-enhanced enzyme activity and the mechanism of UV synergistic degradation of photosensitive pollutants. ENVIRONMENTAL RESEARCH 2024; 247:118257. [PMID: 38262511 DOI: 10.1016/j.envres.2024.118257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
This study introduces the UV/glucose-oxidase@Kaolin (GOD@Kaolin) coupled organic green rust (OGR) system (UV/OGR/GOD@Kaolin) to investigate the promotion of glucose oxidase activity by UV light and its synergistic degradation mechanism for photosensitive pollutants, specifically targeting the efficient degradation of 4-chlorophenol (4-CP). The enzyme system demonstrates its ability to overcome drawbacks associated with traditional Fenton systems, including a narrow pH range and high localized concentration of H2O2, by gradually releasing hydrogen peroxide in situ within a neutral environment. In the presence of UV radiation under specific conditions, enhanced enzyme activity is observed, resulting in increased efficiency in pollutant removal. The gradual release of hydrogen peroxide plays a crucial role in preventing unwanted reactions among active substances. These unique features facilitate the generation of highly reactive species, such as Fe(IV)O, •OH, and •O2-, tailored to efficiently target the organic components of interest. Additionally, the system establishes a positive iron cycle, ensuring a sustained reactive capability throughout the degradation process. The results highlight the UV/OGR/GOD@Kaolin system as an effective and environmentally friendly approach for the degradation of 4-CP, and the resilience of the enzyme extends the system's applicability to a broader range of scenarios.
Collapse
Affiliation(s)
- Xiangyu Liu
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Lei Zhang
- MWR Standard & Quality Control Research Institute, Hangzhou, 310024, China
| | - Qian Zhang
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China; Shenzhen Research Institute of Wuhan University of Technology, Shenzhen, 518000, China.
| | - Meng Li
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China; Shenzhen Research Institute of Wuhan University of Technology, Shenzhen, 518000, China
| | - Ziqi Zhao
- Wuhan HUADET Environmental Protection Engineering & Technology, Wuhan, 430080, China
| | - Bing Lin
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Jie Peng
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Haonan Shen
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| | - Qi He
- School of Civil Engineering & Architecture, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China
| |
Collapse
|
3
|
Yadav S, Kumar S, Haritash AK. A comprehensive review of chlorophenols: Fate, toxicology and its treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118254. [PMID: 37295147 DOI: 10.1016/j.jenvman.2023.118254] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/28/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
Chlorophenols represent one of the most abundant families of toxic pollutants emerging from various industrial manufacturing units. The toxicity of these chloroderivatives is proportional to the number and position of chlorine atoms on the benzene ring. In the aquatic environment, these pollutants accumulate in the tissues of living organisms, primarily in fishes, inducing mortality at an early embryonic stage. Contemplating the behaviour of such xenobiotics and their prevalence in different environmental components, it is crucial to understand the methods used to remove/degrade the chlorophenol from contaminated environment. The current review describes the different treatment methods and their mechanism towards the degradation of these pollutants. Both abiotic and biotic methods are investigated for the removal of chlorophenols. Chlorophenols are either degraded through photochemical reactions in the natural environment, or microbes, the most diverse communities on earth, perform various metabolic functions to detoxify the environment. Biological treatment is a slow process because of the more complex and stable structure of pollutants. Advanced Oxidation Processes are effective in degrading such organics with enhanced rate and efficiency. Based on their ability to generate hydroxyl radicals, source of energy, catalyst type, etc., different processes such as sonication, ozonation, photocatalysis, and Fenton's process are discussed for the treatment or remediation efficiency towards the degradation of chlorophenols. The review entails both advantages and limitations of treatment methods. The study also focuses on reclamation of chlorophenol-contaminated sites. Different remediation methods are discussed to restore the degraded ecosystem back in its natural condition.
Collapse
Affiliation(s)
- Shivani Yadav
- Department of Environmental Engineering, Delhi Technological University, Shahbad Daulatpur, Delhi, 110042, India.
| | - Sunil Kumar
- Solaris Chemtech Industries, Bhuj, Gujarat, India
| | - A K Haritash
- Department of Environmental Engineering, Delhi Technological University, Shahbad Daulatpur, Delhi, 110042, India
| |
Collapse
|
4
|
Poulopoulos SG, Ulykbanova G, Philippopoulos CJ. Photochemical mineralization of amoxicillin medicinal product by means of UV, hydrogen peroxide, titanium dioxide and iron. ENVIRONMENTAL TECHNOLOGY 2021; 42:2941-2949. [PMID: 31964229 DOI: 10.1080/09593330.2020.1720300] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 01/12/2020] [Indexed: 06/10/2023]
Abstract
In the present study, the photochemical degradation of amoxicillin and total organic carbon (TOC) removal in pharmaceutical aqueous solutions was studied using UV irradiation, titanium dioxide, hydrogen peroxide and iron in a batch photoreactor operated for 120-150 min. The effect of the initial concentrations of the target compound, hydrogen peroxide and ferric ions and of their combination was examined. It was found that under direct UV photolysis, considerable TOC removals were obtained only when the initial concentration of amoxicillin (AM) was below 100 mg/L. For initial concentration of AM 250 mg/L, the TOC removals achieved were of no practical use (below 5%). The TOC removals achieved in the presence of TiO2 were lower than 20% in all cases. In the presence of hydrogen peroxide in the range of 12.2-146.9 mmol/L and initial AM concentration 250 mg/L, for increasing H2O2 concentrations higher TOC removals were achieved up to the concentration of 73.4 mmol/L H2O2. The presence of even very small amounts of Fe(III) in the solution resulted in significantly increased TOC removals; 2.2 times higher than without Fe(III) after 120 min. Fe(III) presence accelerated dramatically the process during the first 60 min. The origin of Fe(III) ions was not important since practically the same results were obtained whether FeCl3 or Fe(NO3)3 was used as source of ferric ions. Adjusting the initial concentrations of AM, Fe(III) and H2O2, TOC removals above 90% were achieved.
Collapse
Affiliation(s)
- Stavros G Poulopoulos
- The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
- Environmental Science & Technology Group (ESTg), Chemical and Materials Engineering Department, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Gaukhar Ulykbanova
- The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
- Environmental Science & Technology Group (ESTg), Chemical and Materials Engineering Department, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan
| | - Constantine J Philippopoulos
- Chemical Process Engineering Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| |
Collapse
|
5
|
Tufail A, Price WE, Hai FI. A critical review on advanced oxidation processes for the removal of trace organic contaminants: A voyage from individual to integrated processes. CHEMOSPHERE 2020; 260:127460. [PMID: 32673866 DOI: 10.1016/j.chemosphere.2020.127460] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Advanced oxidation processes (AOPs), such as photolysis, photocatalysis, ozonation, Fenton process, anodic oxidation, sonolysis, and wet air oxidation, have been investigated extensively for the removal of a wide range of trace organic contaminants (TrOCs). A standalone AOP may not achieve complete removal of a broad group of TrOCs. When combined, AOPs produce more hydroxyl radicals, thus performing better degradation of the TrOCs. A number of studies have reported significant improvement in TrOC degradation efficiency by using a combination of AOPs. This review briefly discusses the individual AOPs and their limitations towards the degradation of TrOCs containing different functional groups. It also classifies integrated AOPs and comprehensively explains their effectiveness for the degradation of a wide range of TrOCs. Integrated AOPs are categorized as UV irradiation based AOPs, ozonation/Fenton process-based AOPs, and electrochemical AOPs. Under appropriate conditions, combined AOPs not only initiate degradation but may also lead to complete mineralization. Various factors can affect the efficiency of integrated processes including water chemistry, the molecular structure of TrCOs, and ions co-occurring in water. For example, the presence of organic ions (e.g., humic acid and fulvic acid) and inorganic ions (e.g., halide, carbonate, and nitrate ions) in water can have a significant impact. In general, these ions either convert to high redox potential radicals upon collision with other reactive species and increase the reaction rates, or may act as radical scavengers and decrease the process efficiency.
Collapse
Affiliation(s)
- Arbab Tufail
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - William E Price
- Strategic Water Infrastructure Lab, School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia.
| |
Collapse
|
6
|
Makhatova A, Mazhit B, Sarbassov Y, Meiramkulova K, Inglezakis VJ, Poulopoulos SG. Effective photochemical treatment of a municipal solid waste landfill leachate. PLoS One 2020; 15:e0239433. [PMID: 32960913 PMCID: PMC7508382 DOI: 10.1371/journal.pone.0239433] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 09/06/2020] [Indexed: 11/19/2022] Open
Abstract
This work aimed at studying the photochemical treatment of a landfill leachate using ultraviolet light, hydrogen peroxide, and ferrous or ferric ions, in a batch recycle photoreactor. The effect of inorganic carbon presence, pH, initial H2O2 amount (0-9990 mg L-1) as well as Fe(II) (200-600 ppm) and Fe(III) (300-700 ppm) concentrations on the total carbon removal and color change was studied. Prior to the photochemical treatment, a pretreatment process was applied; inorganic nitrogen and inorganic carbon were removed by means of air stripping and initial pH regulation, respectively. The leachate sent subsequently for photochemical treatment was free of inorganic carbon and contained only organic carbon with concentration 1200±100 mg L-1 at pH 5.1-5.3. The most favorable concentrations of H2O2 and ferric ions for carbon removal were 6660 mg L-1 and 400 ppm, respectively. Adjusting the initial pH value in the range of 2.2-5.3 had a significant effect on the organic carbon removal. The photo-Fenton-like process was more advantageous than the photo-Fenton one for leachate treatment. By applying the most favorable operating conditions, 88.7% removal of total organic carbon, 100% removal of total inorganic carbon, 96.5% removal of total nitrogen, and 98.2% color removal were achieved.
Collapse
Affiliation(s)
- Ardak Makhatova
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Environmental Science & Technology Group (ESTg), The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Birzhan Mazhit
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Environmental Science & Technology Group (ESTg), The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Yerbol Sarbassov
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Environmental Science & Technology Group (ESTg), The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Kulyash Meiramkulova
- Department of Environmental Engineering and Management, Faculty of Natural Sciences, L.N.Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
| | - Vassilis J. Inglezakis
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Environmental Science & Technology Group (ESTg), The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
- Department of Chemical and Process Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Stavros G. Poulopoulos
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Environmental Science & Technology Group (ESTg), The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur-Sultan, Kazakhstan
| |
Collapse
|
7
|
Mousali E, Zanjanchi MA. Loading of nickel phthalocyanine onto functionalized mesoporous KIT-6 solid support: an efficient visible photocatalyst for the degradation of 2,4-dichlorophenol. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01790-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
8
|
Zhang MH, Dong H, Zhao L, Wang DX, Meng D. A review on Fenton process for organic wastewater treatment based on optimization perspective. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 670:110-121. [PMID: 30903886 DOI: 10.1016/j.scitotenv.2019.03.180] [Citation(s) in RCA: 350] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 05/18/2023]
Abstract
Water pollution caused by organic wastewater has become a serious concern worldwide. Fenton oxidation process is one of the most effective and suitable methods for the abatement of organic pollutants. However, the process has three obvious shortcomings: the narrow working pH range, the high costs and risks associated with handling, transportation and storage of reagents (H2O2 and catalyst), the significant iron sludge related second pollution. In order to overcome these shortcomings, various optimized Fenton processes have been widely studied. Therefore, a summary of the study status of Fenton optimization processes is necessary to develop a novel and high efficiency organic wastewater treatment method. Based on the optimization perspective, taking shortcomings of Fenton process as a breakthrough, the fundamentals, advantages and disadvantages of single Fenton optimization processes (heterogeneous Fenton, photo-Fenton and electro-Fenton) for organic wastewater treatment were reviewed and the corresponding reaction mechanism diagrams were drawn in this paper. Then, the feasibility and application of the coupled Fenton optimization processes (photoelectro-Fenton, heterogeneous electro-Fenton, heterogeneous photoelectro-Fenton, three-dimensional electro-Fenton) for organic wastewater treatment were discussed in depth. Additionally, the effect of some important operation parameters (pH and catalyst, H2O2, organic pollutants concentration) on the degradation efficiency of organic pollutants was studied to provide guidance for the optimization of operation parameters. Finally, the possible future research directions for optimized Fenton processes were given. The review aims to assist researchers and engineers to gain fundamental understandings and critical view of Fenton process and its optimization processes, and hopefully with the knowledge it could bring new opportunities for the optimization and future development of Fenton process.
Collapse
Affiliation(s)
- Meng-Hui Zhang
- SEP Key Laboratory of Eco-industry, School of Metallurgy, Northeastern University, Shenyang, Liaoning 110819, China
| | - Hui Dong
- SEP Key Laboratory of Eco-industry, School of Metallurgy, Northeastern University, Shenyang, Liaoning 110819, China.
| | - Liang Zhao
- SEP Key Laboratory of Eco-industry, School of Metallurgy, Northeastern University, Shenyang, Liaoning 110819, China
| | - De-Xi Wang
- School of Chemical Equipment, Shenyang University of Technology, Shenyang, Liaoning 110819, China
| | - Di Meng
- SEP Key Laboratory of Eco-industry, School of Metallurgy, Northeastern University, Shenyang, Liaoning 110819, China
| |
Collapse
|
9
|
Ali MEM, Jamil TS, Abdel-Karim A, El-Kady AA. Utilization of activated carbon for maximizing the efficiency of zirconium oxide for photodegradation of 4-octylphenol. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 54:1055-1065. [PMID: 31213127 DOI: 10.1080/10934529.2019.1631088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/25/2019] [Accepted: 06/07/2019] [Indexed: 06/09/2023]
Abstract
Utilization of AC/zirconium oxide (ZrO2) for the removal of 4-octylphenol (4-OP) from aqueous solution has been studied under simulated visible-light as a cost effective technique. To draw complete images for the prepared materials, a series of characterization methods was performed. Brunauer-Emmett-Teller (BET) data has proved that AC has high surface area and total pore volumes that are decreased after incorporation of ZrO2. Morphologically, TEM showed massive quantity of ZrO2 spherical shape nanoparticles loaded with carbon and EDX showed the uniform distribution of all the prepared materials. The photocatalytic performance has been traced via adopting a matrix effect analysis to correlate the photodegradation of 4-OP in the presence of visible light as a time function, pH, photocatalyst dose and initial concentration of 4-OP. The positive impact of AC content in AC/ZrO2 composite on the adsorption of 4-OP was strikingly observed with expanding the AC content in AC/ZrO2 composite up to 33% (wt/wt). Almost 97% of the 4-OP was removed within 180 min under simulated visible light. The optimum reaction conditions for 95% removal of 4-OP were 120 min, 1 g L-1 catalyst dose at pH 8. The photocatalytic degradation of the 4-OP was well fitted with pseudo first-order L-H kinetic model.
Collapse
Affiliation(s)
- Mohamed E M Ali
- Water Pollution Research Department, National Research Centre , Dokki , Cairo , Egypt
| | - Tarek S Jamil
- Water Pollution Research Department, National Research Centre , Dokki , Cairo , Egypt
| | - Ahmed Abdel-Karim
- Water Pollution Research Department, National Research Centre , Dokki , Cairo , Egypt
| | - Ahmed A El-Kady
- Food Toxicology & Contaminants Department, National Research Centre , Cairo , Egypt
| |
Collapse
|
10
|
Photocatalytic treatment of organic pollutants in a synthetic wastewater using UV light and combinations of TiO2, H2O2 and Fe(III). PLoS One 2019; 14:e0216745. [PMID: 31091256 PMCID: PMC6519810 DOI: 10.1371/journal.pone.0216745] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 04/28/2019] [Indexed: 11/19/2022] Open
Abstract
In this study, the photocatalytic treatment of an organic wastewater with/without phenolic compounds by means of ultraviolet irradiation, titanium dioxide and hydrogen peroxide was examined in an annular photoreactor. Specifically, the effect of initial total carbon concentration, catalyst loading and H2O2 amount on the removal of total carbon was first examined in the case of a synthetic organic wastewater. The influence of partial carbon substitution by phenol, 2-chlorophenol, 2,4-discholophenol, trichlorophenol, and 4-nitrophenol on total carbon removal and target compounds’ conversion was studied keeping constant the initial organic carbon load. It was shown that the process applied was effective in treating the wastewater for initial total carbon 32 mg L-1, 0.5 g L-1 TiO2, and 66.6 mg L-1 H2O2. Applying UV/TiO2 and UV/H2O2, 58% and 53% total carbon removals were achieved, respectively, but combining TiO2 and H2O2 did not result in a better performance in the case of the synthetic wastewater without any phenolic compounds. In contrast, when a phenolic compound was added, the addition of H2O2 was beneficial, eliminating the differences observed from one phenolic compound to another. The total carbon removals observed were lower than the corresponding final conversions of the target phenolic compounds. Finally, the electric energy per order values were calculated and found to range in 52–248 kWh/m3/order, being dependent from the process applied and the phenolic compound present in the wastewater.
Collapse
|
11
|
Shet A, Shetty K V. Photocatalytic degradation of phenol using Ag core-TiO 2 shell (Ag@TiO 2) nanoparticles under UV light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20055-20064. [PMID: 26564193 DOI: 10.1007/s11356-015-5579-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 10/07/2015] [Indexed: 06/05/2023]
Abstract
Ag@TiO2 nanoparticles were synthesized by one pot synthesis method with postcalcination. These nanoparticles were tested for their photocatalytic efficacies in degradation of phenol both in free and immobilized forms under UV light irradiation through batch experiments. Ag@TiO2 nanoparticles were found to be the effective photocatalysts for degradation of phenol. The effects of factors such as pH, initial phenol concentration, and catalyst loading on phenol degradation were evaluated, and these factors were found to influence the process efficiency. The optimum values of these factors were determined to maximize the phenol degradation. The efficacy of the nanoparticles immobilized on cellulose acetate film was inferior to that of free nanoparticles in UV photocatalysis due to light penetration problem and diffusional limitations. The performance of fluidized bed photocatalytic reactor operated under batch with recycle mode was evaluated for UV photocatalysis with immobilized Ag@TiO2 nanoparticles. In the fluidized bed reactor, the percentage degradation of phenol was found to increase with the increase in catalyst loading.
Collapse
Affiliation(s)
- Amruta Shet
- Department of Chemical Engineering, National Institute of Technology Karnataka Surathkal, Srinivasnagar Post, Mangalore, 575025, India
| | - Vidya Shetty K
- Department of Chemical Engineering, National Institute of Technology Karnataka Surathkal, Srinivasnagar Post, Mangalore, 575025, India.
| |
Collapse
|
12
|
Expósito AJ, Durán A, Monteagudo JM, Acevedo A. Solar photo-degradation of a pharmaceutical wastewater effluent in a semi-industrial autonomous plant. CHEMOSPHERE 2016; 150:254-257. [PMID: 26907593 DOI: 10.1016/j.chemosphere.2016.02.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/07/2016] [Accepted: 02/09/2016] [Indexed: 05/27/2023]
Abstract
An industrial wastewater effluent coming from a pharmaceutical laboratory has been treated in a semi-industrial autonomous solar compound parabolic collector (CPC) plant. A photo-Fenton process assisted with ferrioxalate has been used. Up to 79% of TOC can be removed in 2 h depending on initial conditions when treating an aqueous effluent containing up to 400 ppm of initial organic carbon concentration (TOC). An initial ratio of Fe(II)/TOC higher than 0.5 guarantees a high removal. It can be seen that most of TOC removal occurs early in the first hour of reaction. After this time, mineralization was very slow, although H2O2 was still present in solution. Indeed it decomposed to form oxygen in inefficient reactions. It is clear that remaining TOC was mainly due to the presence of acetates which are difficult to degrade.
Collapse
Affiliation(s)
- Antonio J Expósito
- IMAES Group, INEI, Department of Chemical Engineering, ETSII, University of Castilla-La Mancha, Avda. Camilo José Cela 3, 13071, Ciudad Real, Spain
| | - Antonio Durán
- IMAES Group, INEI, Department of Chemical Engineering, ETSII, University of Castilla-La Mancha, Avda. Camilo José Cela 3, 13071, Ciudad Real, Spain.
| | - José M Monteagudo
- IMAES Group, INEI, Department of Chemical Engineering, ETSII, University of Castilla-La Mancha, Avda. Camilo José Cela 3, 13071, Ciudad Real, Spain
| | - Alba Acevedo
- IMAES Group, INEI, Department of Chemical Engineering, ETSII, University of Castilla-La Mancha, Avda. Camilo José Cela 3, 13071, Ciudad Real, Spain
| |
Collapse
|
13
|
Yu P, Sun Q, Tan Z, Meng M, Pan J, Yan Y, Li C. Magnetic Molecularly Imprinted Polymer Beads Obtained by Suspension Polymerization for the Adsorption of 2,4,6-Trichlorophenol from an Aqueous Solution in a Fixed-Bed Column. ADSORPT SCI TECHNOL 2015. [DOI: 10.1260/0263-6174.33.3.321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Ping Yu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
- School of Computer Science, Jilin Normal University, Siping 136000, China
| | - Qilong Sun
- School of Management, Jilin Normal University, Siping 136000, China
| | - Zhenjiang Tan
- School of Computer Science, Jilin Normal University, Siping 136000, China
| | - Minjia Meng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
- School of Chemistry, Jilin Normal University, Siping 136000, China
| | - Chunxiang Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| |
Collapse
|
14
|
Witońska IA, Walock MJ, Binczarski M, Lesiak M, Stanishevsky AV, Karski S. Pd–Fe/SiO2 and Pd–Fe/Al2O3 catalysts for selective hydrodechlorination of 2,4-dichlorophenol into phenol. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.06.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
15
|
Qu Q, Pan J, Yin Y, Wu R, Shi W, Yan Y, Dai X. Synthesis of macroporous polymer foams via pickering high internal phase emulsions for highly efficient 2,4,5-trichlorophenol removal. J Appl Polym Sci 2014. [DOI: 10.1002/app.41430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qin Qu
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Yijie Yin
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Runrun Wu
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Weidong Shi
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| | - Xiaohui Dai
- School of Chemistry and Chemical Engineering, Jiangsu University; Zhenjiang 212013 China
| |
Collapse
|
16
|
Lesage O, Roques-Carmes T, Commenge JM, Duten X, Tatoulian M, Cavadias S, Mantovani D, Ognier S. Degradation of 4-Chlorobenzoïc Acid in a Thin Falling Film Dielectric Barrier Discharge Reactor. Ind Eng Chem Res 2014. [DOI: 10.1021/ie403772t] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Olivier Lesage
- Institut
de Recherche de Chimie Paris (IRCP), University Pierre et Marie Curie (University of Paris 06), UMR 8247 CNRS, 11 rue Pierre et Marie Curie, Paris 75005, France
- Laboratory
of Biomaterials and Bioengineering (LBB), Laval University, Quebec City, Quebec QC G1V 0A6, Canada
| | - Thibault Roques-Carmes
- Laboratoire
Réactions et Génie des Procédés (LRGP), École Nationale Supérieure des Industries Chimiques, Nancy 54000, France
| | - Jean-Marc Commenge
- Laboratoire
Réactions et Génie des Procédés (LRGP), École Nationale Supérieure des Industries Chimiques, Nancy 54000, France
| | - Xavier Duten
- Laboratoire
des Sciences des Procédés et des Matériaux (LSPM), University of Paris 13, Paris 93430, France
| | - Michael Tatoulian
- Institut
de Recherche de Chimie Paris, Chimie ParisTech, UMR 8247 CNRS, 11 rue Pierre et
Marie Curie, Paris 75005, France
| | - Simeon Cavadias
- Institut
de Recherche de Chimie Paris (IRCP), University Pierre et Marie Curie (University of Paris 06), UMR 8247 CNRS, 11 rue Pierre et Marie Curie, Paris 75005, France
| | - Diego Mantovani
- Laboratory
of Biomaterials and Bioengineering (LBB), Laval University, Quebec City, Quebec QC G1V 0A6, Canada
| | - Stephanie Ognier
- Institut
de Recherche de Chimie Paris (IRCP), University Pierre et Marie Curie (University of Paris 06), UMR 8247 CNRS, 11 rue Pierre et Marie Curie, Paris 75005, France
| |
Collapse
|
17
|
Karci A. Degradation of chlorophenols and alkylphenol ethoxylates, two representative textile chemicals, in water by advanced oxidation processes: the state of the art on transformation products and toxicity. CHEMOSPHERE 2014; 99:1-18. [PMID: 24216260 DOI: 10.1016/j.chemosphere.2013.10.034] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 10/09/2013] [Accepted: 10/13/2013] [Indexed: 06/02/2023]
Abstract
Advanced oxidation processes based on the generation of reactive species including hydroxyl radicals are viable options in eliminating a wide array of refractory organic contaminants in industrial effluents. The assessment of transformation products and toxicity should be, however, the critical point that would allow the overall efficiency of advanced oxidation processes to be better understood and evaluated since some transformation products could have an inhibitory effect on certain organisms. This article reviews the most recent studies on transformation products and toxicity for evaluating advanced oxidation processes in eliminating classes of compounds described as "textile chemicals" from aqueous matrices and poses questions in need of further investigation. The scope of this paper is limited to the scientific studies with two classes of textile chemicals, namely chlorophenols and alkylphenol ethoxylates, whose use in textile industry is a matter of debate due to health risks to humans and harm to the environment. The article also raises the critical question: What is the state of the art knowledge on relationships between transformation products and toxicity?
Collapse
Affiliation(s)
- Akin Karci
- Bogazici University, Institute of Environmental Sciences, 34342 Bebek, Istanbul, Turkey.
| |
Collapse
|
18
|
Agarry SE, Owabor CN, Ajani AO. MODIFIED PLANTAIN PEEL AS CELLULOSE-BASED LOW-COST ADSORBENT FOR THE REMOVAL OF 2,6-DICHLOROPHENOL FROM AQUEOUS SOLUTION: ADSORPTION ISOTHERMS, KINETIC MODELING, AND THERMODYNAMIC STUDIES. CHEM ENG COMMUN 2013. [DOI: 10.1080/00986445.2012.740534] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
19
|
Sharma S, Mukhopadhyay M, Murthy ZVP. Treatment of Chlorophenols from Wastewaters by Advanced Oxidation Processes. SEPARATION AND PURIFICATION REVIEWS 2013. [DOI: 10.1080/15422119.2012.669804] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
20
|
Transformation of 2,4-dichlorophenol by H2O2/UV-C, Fenton and photo-Fenton processes: Oxidation products and toxicity evolution. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.01.003] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
21
|
Gmurek M, Mosinger J, Miller JS. 2-Chlorophenol photooxidation using immobilized meso-tetraphenylporphyrin in polyurethane nanofabrics. Photochem Photobiol Sci 2012; 11:1422-7. [DOI: 10.1039/c2pp25010a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Maezono T, Tokumura M, Sekine M, Kawase Y. Hydroxyl radical concentration profile in photo-Fenton oxidation process: generation and consumption of hydroxyl radicals during the discoloration of azo-dye Orange II. CHEMOSPHERE 2011; 82:1422-30. [PMID: 21146853 DOI: 10.1016/j.chemosphere.2010.11.052] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Revised: 11/17/2010] [Accepted: 11/17/2010] [Indexed: 05/08/2023]
Abstract
Dynamic behaviors of hydroxyl (OH) radical generation and consumption in photo-Fenton oxidation process were investigated by measuring OH radical concentration during the discoloration of azo-dye Orange II. The effects of operating parameters for photo-Fenton discoloration, i.e. dosages of H(2)O(2) and Fe, initial dye concentration, solution pH and UV irradiation, on the generation and consumption of OH radicals playing the main role in advanced oxidation processes were extensively studied. The scavenger probe or trapping technique in which coumarin is scavenger of OH radical was applied to estimate OH radical concentration in the photoreactor during the photo-Fenton discoloration process. The OH radical generation was enhanced with increasing the dosages of Fenton regents, H(2)O(2) and Fe. At the initial stage of photo-Fenton discoloration of Orange II, the OH radical concentration rapidly increased (Phase-I) and the OH radical concentration decreased after reaching of OH radical concentration at maximum value (Phase-II). The decrease in OH radical concentration started when the complete discoloration of Orange II was nearly achieved and the H(2)O(2) concentration became rather low. The dynamic behavior of OH radical concentration during the discoloration of Orange II was found to be strongly linked with the change in H(2)O(2) concentration. The generation of OH radical was maximum at solution pH of 3.0 and decreased with an increase of solution pH. The OH radical generation rate in the Fenton Process was rather slower than that in the photo-Fenton process.
Collapse
Affiliation(s)
- Takuya Maezono
- Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | | | | | | |
Collapse
|