1
|
Esmaeili S, Dehvari M, Neisi A, Takdastan A, Tahmasebi Birgani Y, Babaei AA. Ultrasound‒induced facile synthesis of spinel CoFe 2O 4‒PAC magnetic nanocatalyst for remediation of hypersaline petrochemical wastewater: Degradation mechanism, biodegradability enhancement and phytotoxicity mitigation. ENVIRONMENTAL RESEARCH 2024; 254:118676. [PMID: 38763285 DOI: 10.1016/j.envres.2024.118676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/03/2024] [Accepted: 03/09/2024] [Indexed: 05/21/2024]
Abstract
In this study, magnetic CoFe2O4-PAC nanocatalysts were synthesized through facile hydrothermal and co‒precipitation approaches with ultrasonic irradiation, which were used for the treatment of hypersaline petrochemical wastewater (HPCW). When an ultrasound‒induced synthesis process (US@CoFe2O4‒PAC) was used, a more efficient and stable magnetic spinel CoFe2O4‒PAC nanocatalyst was developed. The application of this nanocatalyst as a PMS activator, not only caused eradication of 90.4% of chemical oxygen demand (COD) of a HPCW after 90 min reaction time under the optimum conditions (pH 5-6, catalyst dose 1.0 g/L and 1.0 mM PMS), but also led to marginal leaching of iron (314 μg/L) and cobalt (95 μg/L) from the nanocatalyst. Recycling experiments over five consecutive runs showed a negligible decrease (7.2%) in COD removal efficiency which proved the stability and reusability of magnetic US@CoFe2O4-PAC. Two main mechanisms of adsorption and catalytic oxidation processes (homogeneous and heterogeneous PMS) are involved simultaneously in the PMS/US@CoFe2O4-PAC system, which are responsible for the destruction of refractory contaminants of HPCW through the generation of SO4•‒ and OH• radicals. COD of HPCW was mainly removed through SO4•- radical attack (73.6%) and the biodegradability of HPCW was enhanced dramatically after 90 min reaction time. The germination index (GI) of raw HPCW was increased 17.1 ± 4.2% and 24.3 ± 8.8% after 15 and 90 min reaction time, respectively, even PMS/US@CoFe2O4-PAC system showed less impact on phytotoxicity mitigation. Hence, it can be recommended to dilute the effluent before using for irrigational purpose. The findings of this study present practical significance of spinel US@CoFe2O4-PAC, which is an environment‒friendly catalyst, easy to handle and can sustain long‒term operation for the treatment of recalcitrant hypersaline wastewater and the other potential practical applications.
Collapse
Affiliation(s)
- Shirin Esmaeili
- Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahboobeh Dehvari
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abdolkazem Neisi
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afshin Takdastan
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Yaser Tahmasebi Birgani
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Akbar Babaei
- Environmental Technologies Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| |
Collapse
|
2
|
Gao B, Zhang J, Liu J, Ayati A, Sillanpää M. Excess sludge-based biochar loaded with manganese enhances catalytic ozonation efficiency for landfill leachate treatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123591. [PMID: 38367696 DOI: 10.1016/j.envpol.2024.123591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/08/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
This study developed an efficient and stable landfill leachate treatment process, which was based on the combination of biochar catalytic ozonation and activated sludge technology for intensive treatment of landfill leachate, aiming to achieve the standard discharge of leachate. The focus is to investigate the effect of manganese loading on the physicochemical properties of biochar and the mechanism of its catalytic ozonation. It was found that more surface functional groups (CO, Mn-O, etc.) and defects (ID/IG = 1.27) were exposed via the change of original carbon structure by loading Mn, which is conducive to the generation of lattice oxygen. Meanwhile, generating different valence states of Mn metal can improve the redox properties and electron migration rate, and encourage the production of reactive oxygen species (ROS) during the reaction process and enhance the catalytic efficiency. The synergistic action of microorganisms, especially denitrifying bacteria, was found to play a key role in the degradation of nitrogenous pollutants during the activated sludge process. The concentration of NH+4-N was reduced from the initial 1087.03 ± 9.56 mg/L to 9.05 ± 1.91 mg/L, while COD was reduced from 2290 ± 14.14 mg/L to 86.5 ± 2.12 mg/L, with corresponding removal rates of 99.17% and 99.20%, respectively. This method offers high efficiency and stability, achieving discharge standards for leachate (GB16889-2008). The synergy between Mn-loaded biochar and microorganisms in the activated sludge is key to effective treatment. This study offers a new approach to solving the challenge of waste leachate treatment.
Collapse
Affiliation(s)
- Bo Gao
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Jingyao Zhang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Jiadong Liu
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Ali Ayati
- EnergyLab, ITMO University, 9 Lomonosova Street, Saint Petersburg, 191002, Russia
| | - Mika Sillanpää
- Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, 8000, Aarhus C, Denmark; Functional Materials Group, Gulf University for Science and Technology, Mubarak Al-Abdullah, 32093, Kuwait; School of Technology, Woxsen University, Hyderabad, Telangana, India
| |
Collapse
|
3
|
Kong X, Garg S, Chen G, Waite TD. Investigation of the deactivation and regeneration of an Fe 2O 3/Al 2O 3•SiO 2 catalyst used in catalytic ozonation of coal chemical industry wastewater. JOURNAL OF HAZARDOUS MATERIALS 2023; 451:131194. [PMID: 36921420 DOI: 10.1016/j.jhazmat.2023.131194] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/23/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Catalyst deactivation is an ongoing concern for industrial application of catalytic ozonation processes. In this study, we systematically investigated the performance of a catalytic ozonation process employing Fe2O3/Al2O3•SiO2 catalyst for the treatment of coal chemical industry (CCI) wastewater using pilot-scale and laboratory-scale systems. Our results show that the activity of the Fe2O3/Al2O3•SiO2 catalyst for organic contaminant removal deteriorated over time due to formation of a dense and thin carbonaceous layer on the Fe2O3 catalyst surface. EPR and fluorescence imaging analysis confirm that the passivation layer essentially inhibited the O3-catalyst interaction thereby minimizing formation of surficial •OH and associated oxidation of organic contaminants on the catalyst surface. Calcination was demonstrated to be effective in restoring the activity of the catalyst since the carbonaceous layer could be efficiently combusted during calcination to re-establish the surficial •OH-mediated oxidation process. The combustion of the carbonaceous layer and restoration of the Fe layer on the surface on calcination was confirmed based on SEM-EDX, FTIR and thermogravimetric analysis. Cost analysis indicates that regeneration using calcination is economically viable compared to catalyst replacement. The results of this study are expected to pave the way for developing appropriate regeneration techniques for deactivated catalysts and optimising the catalyst synthesis procedure.
Collapse
Affiliation(s)
- Xiangtong Kong
- Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Shikha Garg
- Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Guifeng Chen
- China Coal Research Institute, Beijing 100013, PR China
| | - T David Waite
- Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia; UNSW Centre for Transformational Environmental Technologies (CTET), Yixing, Jiangsu 214206, PR China.
| |
Collapse
|
4
|
Duan X, Lu Z, Sun B, Wu S, Qian Z. Efficient utilization of free radicals in advanced oxidation processes under high-gravity environment for disposing pollutants in effluents and gases: A critical review. CHEMOSPHERE 2023:139057. [PMID: 37268234 DOI: 10.1016/j.chemosphere.2023.139057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/16/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023]
Abstract
Advanced oxidation processes (AOPs) using strongly oxidizing radicals are promising for wastewater treatment and gas purification. Nevertheless, the short half-life of radicals and the limited mass transfer in traditional reactors cause under-utilization of radicals and low pollutant removal efficiency. High-gravity technology (HiGee)-enhanced AOPs (HiGee-AOPs) have been demonstrated a promising way to enhance radical utilization in a rotating packed bed reactor (RPB). Here, we review the potential mechanisms of intensified radical utilization in HiGee-AOPs, structures and performance of RPB, and applications of HiGee in AOPs. The intensification mechanisms are described from three aspects: enhanced generation of radicals by efficient mass transfer, in-situ radical utilization under frequent liquid film renewal, and selective effect on radical utilization due to micromixing in RPB. Based on these mechanisms, we propose a novel High-gravity flow reaction with the essence of efficiency, in-situ, and selectivity in order to better explain the strengthening mechanisms in HiGee-AOPs. HiGee-AOPs possess great potential for treating effluent and gaseous pollutants due to characteristics of High-gravity flow reaction. We discuss the pros and cons of different RPBs and their applications to specific HiGee-AOPs. HiGee improve the following AOPs: (1) facilitate interfacial mass transfer in homogeneous AOPs, (2) enhance mass transfer to expose more catalytically active sites and mass-produce nanocatalysts for heterogeneous AOPs, (3) inhibit bubble accumulation on the electrode surface of electrochemical AOPs, (4) increase the mass transfer between liquid and catalysts in UV-assisted AOPs, (5) improve the micromixing efficiency of ultrasound-based AOPs. Strategies outlined in this paper should inspire further development of HiGee-AOPs.
Collapse
Affiliation(s)
- Xiaoxi Duan
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China; Binzhou Institute of Technology, Weiqiao-UCAS Science and Technology Park, Binzhou City, Shandong, 256606, China
| | - ZhiCheng Lu
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China; Binzhou Institute of Technology, Weiqiao-UCAS Science and Technology Park, Binzhou City, Shandong, 256606, China
| | - Baochang Sun
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Shao Wu
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China; Binzhou Institute of Technology, Weiqiao-UCAS Science and Technology Park, Binzhou City, Shandong, 256606, China
| | - Zhi Qian
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China; Binzhou Institute of Technology, Weiqiao-UCAS Science and Technology Park, Binzhou City, Shandong, 256606, China.
| |
Collapse
|
5
|
Yuan R, Qin Y, He C, Wang Z, Bai L, Zhao H, Jiang Z, Meng L, He X. Fe-Mn-Cu-Ce/Al2O3 as an efficient catalyst for catalytic ozonation of bio-treated coking wastewater: Characteristics, efficiency, and mechanism. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
6
|
Liu B, Chen B, Ling J, Matchinski EJ, Dong G, Ye X, Wu F, Shen W, Liu L, Lee K, Isaacman L, Potter S, Hynes B, Zhang B. Development of advanced oil/water separation technologies to enhance the effectiveness of mechanical oil recovery operations at sea: Potential and challenges. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129340. [PMID: 35728323 DOI: 10.1016/j.jhazmat.2022.129340] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/23/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Mechanical oil recovery (i.e., booming and skimming) is the most common tool for oil spill response. The recovered fluid generated from skimming processes may contain a considerable proportion of water (10 % ~ 70 %). As a result of regulatory prohibition on the discharge of contaminated waters at sea, vessels and/or storage barges must make frequent trips to shore for oil-water waste disposal. This practice can be time- consuming thus reduces the overall efficiency and capacity of oil recovery. One potential solution is on-site oil-water separation and disposal of water fraction at sea. However, currently available decanting processes may have limited oil/water separation capabilities, especially in the presence of oil-water emulsion, which is inevitable in mechanical oil recovery. The decanted water may not meet the discharge standards and cause severe ecotoxicological impacts. This paper therefore comprehensively reviews the principles and progress in oil/water separation, demulsification, and on-site treatment technologies, investigates their applicability on decanting at sea, and discusses the ecotoxicity of decanted water in the marine environment. The outputs provide the fundamental and practical knowledge on decanting and help enhance response effectiveness and consequently reducing the environmental impacts of oil spills.
Collapse
Affiliation(s)
- Bo Liu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada.
| | - Jingjing Ling
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Ethan James Matchinski
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Guihua Dong
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Xudong Ye
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Fei Wu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Wanhua Shen
- Environmental Engineering Program, University of Northern British Columbia, Prince George, BC V2N 4Z9, Canada
| | - Lei Liu
- Department of Civil and Resource Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Kenneth Lee
- Ecosystem Science, Fisheries and Oceans Canada, Ottawa, ON K1A 0E6, Canada
| | - Lisa Isaacman
- Ecosystem Science, Fisheries and Oceans Canada, Ottawa, ON K1A 0E6, Canada
| | - Stephen Potter
- SL Ross Environmental Research Ltd., Ottawa, ON K2H 8S9, Canada
| | - Brianna Hynes
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada
| |
Collapse
|
7
|
Ghafoori S, Omar M, Koutahzadeh N, Zendehboudi S, Malhas RN, Mohamed M, Al-Zubaidi S, Redha K, Baraki F, Mehrvar M. New advancements, challenges, and future needs on treatment of oilfield produced water: A state-of-the-art review. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120652] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
8
|
Shao S, Li Z, Zhang J, Gao K, Liu Y, Jiao W. Preparation of Ce-MnOX/γ-Al2O3 by high gravity-assisted impregnation method for efficient catalytic ozonation. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117246] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
9
|
Liang Y, Feng Q, Zhang J, Jiao C, Xiong J, Wang S, Yang Q. Coupling of photocatalysis and biological treatment for elemental chlorine free bleaching wastewater: Application of factorial design methodology. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 302:114111. [PMID: 34800771 DOI: 10.1016/j.jenvman.2021.114111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/20/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
In this study, the visible-light-induced intimately coupled photocatalysis and biodegradation (ICPB) technology was fabricated using the TiO2/bagasse cellulose composite as the carrier and Phanerochaete mixed activated sludge as the biological source. The ICPB degradation effect of elemental chlorine free (ECF) bleaching wastewater was evaluated via the response surface design. Then, the wastewater was characterized, including absorbable organic halogen (AOX), dissolved organic carbon (DOC), chemical oxygen demand (COD), chroma, pH, suspended solids, and the organic compound changes in wastewater were analyzed by fourier transform infrared spectroscopy (FT-IR). Under the optimal conditions of pH 7, carrier filling rate of 5%, aeration rate of 2 L/min, and reaction time of 7 h, the degradation efficiencies of AOX, COD, and DOC were 95%, 91%, and 82%, respectively. The X-ray photoelectron spectroscopy (XPS) results of the ICPB carrier after the reaction were almost identical to those before the reaction. The biomass and its activity on the ICPB system were analyzed by the dominant bacteria during degradation (Curaneotrichosporon, Paenibacillus, Cellulonas, Phanerochaete, Dechlorobacter, Rhodotorula, Sphingobacterium, and Ruminiclostridium), which had a good degradation effect on wastewater. This study affords a novel method for the degradation of ECF bleaching wastewater and a new idea for ICPB technology optimization.
Collapse
Affiliation(s)
| | - Qilin Feng
- Guangxi University, Nanning, 530004, China
| | | | | | - Jianhua Xiong
- Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, China.
| | - Shuangfei Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, 530004, China
| | - Qifeng Yang
- Guangxi Bossco Environmental Protection Technology Co., Ltd., Nanning, 530007, China
| |
Collapse
|
10
|
Li W, Zhang M, Wang H, Lian J, Qiang Z. Removal of recalcitrant organics in reverse osmosis concentrate from coal chemical industry by UV/H 2O 2 and UV/PDS: Efficiency and kinetic modeling. CHEMOSPHERE 2022; 287:131999. [PMID: 34454225 DOI: 10.1016/j.chemosphere.2021.131999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
The lack of stability in catalytic ozonation treatment of reverse osmosis (RO) concentrate from coal chemical industry calls for new advanced oxidation processes. Herein, UV/H2O2 and UV/PDS were employed to remove the bulk recalcitrant organics in the RO concentrate with a focus on the process efficiency and kinetic modeling. Results show that UV/H2O2 overmatched UV/PDS in reducing the COD and DOC of the wastewater and the advantage became more evident in aspects of biodegradability improvement and energy cost. Specifically, the COD and DOC were removed by 62.0% and 55.5% with UV/H2O2 (6 mM) while the BOD5/COD was elevated to 0.54 at a specific energy consumption of 0.83 kWh g-1 (lab-scale). The UV/H2O2 process also exhibited a good adaptability to the fluctuation of wastewater quality. Afterwards, the reaction rate constants of the bulk organics upon UV photolysis and HO• oxidation were calculated based on pseudo-first-order kinetics and radical steady-state approximation of DOC removal in the bench-scale UV/H2O2 reactor. A computational fluid dynamics model was then developed for the analysis of distributions of flow, radiation and chemicals in flow-through reactors which facilitated the practical process efficiency assessment. This work demonstrates the applicability of UV/H2O2 in removing recalcitrant organics in the RO concentrate and presents an approach from bench-scale experiments to flow-through system evaluation.
Collapse
Affiliation(s)
- Wentao Li
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Miao Zhang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Ganzhou Key Laboratory of Basin Pollution Simulation and Control, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Hui Wang
- SINOPEC Research Institute of Petroleum Processing, Beijing, 100083, China
| | - Junfeng Lian
- Ganzhou Key Laboratory of Basin Pollution Simulation and Control, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Zhimin Qiang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
11
|
Shao S, Li Z, Gao K, Zhang J, Liu Y, Jiao W. Preparation of Cu-MnOX/γ-Al2O3 by high gravity-assisted impregnation method for heterogeneous catalytic ozonation of nitrobenzene. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119896] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
12
|
Ye H, Yang B, Wang Q, How ZT, Nie C, Chelme-Ayala P, Guo S, Chen C, Gamal El-Din M. Influences of integrated coagulation-ozonation pretreatment on the characteristics of dissolved organic pollutants (DOPs) of heavy oil electric desalting wastewaters. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113756. [PMID: 34534758 DOI: 10.1016/j.jenvman.2021.113756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/20/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
The quality of heavy oil electric desalting wastewaters (HO-EDWs) affects the effectiveness of refinery wastewater treatment plants. In this study, an integrated coagulation-ozonation (ICO) process was used to pretreat HO-EDWs and the influences on the characteristics of dissolved organic pollutants (DOPs) were investigated. Coagulation using aluminum sulfate removed 39% of soluble chemical oxygen demand (SCOD), 21% of dissolved organic carbon (DOC), 57% of petroleum hydrocarbons and 38% of polar oils from Liaohe HO-EDWs and the biodegradability was greatly improved. Ozonation removed 33% of SCOD and 88% of polar oils from the coagulated HO-EDWs. Most species of aromatic compounds, phenols, aliphatic acids, anilines and naphthenic acids with high C numbers and ring numbers were degraded and the unsaturation degrees of DOPs significantly decreased under ozonation. As a result, the biodegradability was further improved and the acute toxicity towards Vibrio fischeri was substantially reduced. Some OxS1 species and organic nitrogen compounds in HO-EDWs were penetrated through ozonation and caused the residual biotoxicity. The results demonstrate the potential of ICO pretreatment for improving the quality of refractory HO-EDWs.
Collapse
Affiliation(s)
- Huangfan Ye
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Baiyu Yang
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Qinghong Wang
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Zuo Tong How
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Chunmei Nie
- Refining & Petrochemical Research Institute, PetroChina Karamay Petrochemical Co., Ltd., Karamay, 834000, China
| | - Pamela Chelme-Ayala
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Shaohui Guo
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China.
| | - Mohamed Gamal El-Din
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada.
| |
Collapse
|
13
|
He C, Fang Z, Li Y, Jiang C, Zhao S, Xu C, Zhang Y, Shi Q. Ionization selectivity of electrospray and atmospheric pressure photoionization FT-ICR MS for petroleum refinery wastewater dissolved organic matter. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2021; 23:1466-1475. [PMID: 34669760 DOI: 10.1039/d1em00248a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dissolved organic matter (DOM) in petroleum refinery wastewater is an extremely complex mixture. A better understanding of chemical compositions of DOM at the molecular level is necessary for the design and optimization of wastewater treatment processes. In this study, two largely different DOM samples, one from a petroleum refinery wastewater and the other from the Suwannee river water, were characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) coupled with positive-/negative-ion electrospray ionization (ESI), and positive-ion atmospheric pressure photoionization (APPI). For wastewater DOM, a total of 6226 molecular formulae were assigned in the three ionization modes. However, only 1182 molecular formulae were common in all three mass spectra, indicating that the techniques were highly complementary in the types of molecules they ionize. Acid Ox (x = 1-9) and basic N1Ox (x = 0-2) classes were dominant in the wastewater DOM detected in negative-ion and positive-ion ESI mode, respectively. And the wastewater DOM contains considerable amounts of polycyclic aromatic hydrocarbons that did not respond to ESI but can be ionized selectively by APPI. Compared with riverine DOM, the refinery wastewater DOM has a higher molecular complexity and is more enriched in hydrocarbon, and nitrogen- and sulfur-containing compounds. The results show that the major components of refinery wastewater DOM were distinctive from those of the natural organic matter. Though not quantitative, the results obtained by various ionization techniques were found to be complementary, and are helpful to our understanding of the selectivity of different ionization techniques as well as the molecular compositions of DOM.
Collapse
Affiliation(s)
- Chen He
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| | - Zhi Fang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| | - Yongyong Li
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
| | | | - Suoqi Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| | - Chunming Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| | - Yahe Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| | - Quan Shi
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| |
Collapse
|
14
|
Xia L, Liang W, Chen G, Li W, Gao M. Catalytic Ozonation of Quinoline Utilizing Manganese-Based Catalyst with Abundant Oxygen Vacancies. Catal Letters 2021. [DOI: 10.1007/s10562-021-03735-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
15
|
Zhao KH, Ma YL, Lin F, Ge SY, Zhu L. Refractory organic compounds in coal chemical wastewater treatment by catalytic ozonation using Mn-Cu-Ce/Al 2O 3. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:41504-41515. [PMID: 33782829 DOI: 10.1007/s11356-021-13629-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
A composite Mn-Cu-Ce tri-metal oxide supported on γ-Al2O3 (Mn-Cu-Ce/Al2O3) catalyst was prepared by an impregnation-calcination method and investigated in the catalytic ozonation treatment of real coal chemical wastewater (CCW). The catalyst was characterized by XRD, SEM, TEM, XRF, BET, and XPS techniques. The results showed that Mn, Cu, and Ce metal oxides were evenly distributed on the Al2O3 surface and the catalyst maintained a large surface area and a high pore volume compared with the pristine Al2O3. The synergy between Mn, Cu, and Ce oxides greatly enriched the catalytic active sites and enhanced the ozonation performance. The catalytic ozonation process with Mn-Cu-Ce/Al2O3 increased the removal rate of total organic carbon (TOC) by 31.6% compared with ozonation alone. The ketones, aromatic compounds, phenols, and nitrogen-containing heterocyclic compounds in CCW have been effectively degraded and mineralized by Mn-Cu-Ce/Al2O3 catalytic ozonation process, and its biodegradability has also been significantly improved. The experimental results of ∙OH scavengers revealed that the mechanism of Mn-Cu-Ce/Al2O3 catalytic ozonation was to promote the generation of ∙OH radicals. The catalytic activity of Mn-Cu-Ce/Al2O3 was only a slight decrease in six consecutive catalytic ozonation treatments, showing good stability. Therefore, Mn-Cu-Ce/Al2O3 can be used as a candidate catalyst for the advanced treatment of refractory organic wastewaters upon catalytic ozonation.
Collapse
Affiliation(s)
- Kang-He Zhao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Helanshan Rd. 539, Yinchuan, 750021, China
| | - Yu-Long Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Helanshan Rd. 539, Yinchuan, 750021, China.
| | - Feng Lin
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Helanshan Rd. 539, Yinchuan, 750021, China
| | - Shao-Ying Ge
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Helanshan Rd. 539, Yinchuan, 750021, China
| | - Li Zhu
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Helanshan Rd. 539, Yinchuan, 750021, China
| |
Collapse
|
16
|
Application of Catalytic Ozonation Process Using a Novel Fe3O4/Mg(OH)2/4A-Zeolite Catalyst for Swift Treatment of Dairy Effluent. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01904-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
17
|
Girón-Navarro R, Linares-Hernández I, Teutli-Sequeira EA, Martínez-Miranda V, Santoyo-Tepole F. Evaluation and comparison of advanced oxidation processes for the degradation of 2,4-dichlorophenoxyacetic acid (2,4-D): a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26325-26358. [PMID: 33825107 DOI: 10.1007/s11356-021-13730-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Organochlorine pesticides have generated public concern worldwide because of their toxicity to human health and the environment, even at low concentrations, and their persistence, being mostly nonbiodegradable. The use of 2,4-dichlorophenoxyacetic acid (2,4-D) has increased in recent decades, causing severe water contamination. Several treatments have been developed to degrade 2,4-D. This manuscript presents an overview of the physicochemical characteristics, uses, regulations, environmental and human health impacts of 2,4-D, and different advanced oxidation processes (AOPs) to degrade this organic compound, evaluating and comparing operation conditions, efficiencies, and intermediaries. Based on this review, 2,4-D degradation is highly efficient in ozonation (system O3/plasma, 99.8% in 30 min). Photocatalytic, photo-Fenton, and electrochemical processes have the optimal efficiencies of degradation and mineralization: 97%/79.67% (blue TiO2 nanotube arrays//UV), 100%/98% (Fe2+/H2O2/UV), and 100%/84.3% (MI-meso SnO2), respectively. The ozonation and electrochemical processes show high degradation efficiencies, but energy costs are also high, and photocatalysis is more expensive with a separation treatment used to recover the catalyst in the solution. The Fenton process is a viable economic-environmental option, but degradation efficiencies are often low (50-70%); however, they are increased when solar UV radiation is used (90-100%). AOPs are promising technologies for the degradation of organic pollutants in real wastewater, so evaluating their strengths and weaknesses is expected to help select viable operational conditions and obtain optimal efficiencies.
Collapse
Affiliation(s)
- Rocío Girón-Navarro
- Instituto Interamericano de Tecnología y Ciencias de Agua (IITCA), Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C, .P 50200, Toluca, Estado de México, México
| | - Ivonne Linares-Hernández
- Instituto Interamericano de Tecnología y Ciencias de Agua (IITCA), Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C, .P 50200, Toluca, Estado de México, México.
| | - Elia Alejandra Teutli-Sequeira
- Instituto Interamericano de Tecnología y Ciencias de Agua (IITCA), Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C, .P 50200, Toluca, Estado de México, México
- Cátedras del Consejo Nacional de Ciencia y Tecnología, Av. Insurgentes Sur 1582, Col. Crédito Constructor. Alcaldía Benito Juárez, C.P 03940, Ciudad de México, México
| | - Verónica Martínez-Miranda
- Instituto Interamericano de Tecnología y Ciencias de Agua (IITCA), Universidad Autónoma del Estado de México, Km.14.5, carretera Toluca-Atlacomulco, C, .P 50200, Toluca, Estado de México, México.
| | - Fortunata Santoyo-Tepole
- Escuela Nacional de Ciencias Biológicas, Unidad Profesional Lázaro Cárdenas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Ciudad de México, México
| |
Collapse
|
18
|
Jiao W, Wei X, Shao S, Liu Y. Catalytic decomposition and mass transfer of aqueous ozone promoted by Fe-Mn-Cu/γ-Al2O3 in a rotating packed bed. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.03.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
19
|
Shao S, Lei D, Song Y, Liang L, Liu Y, Jiao W. Cu–MnO X/γ-Al 2O 3 Catalyzed Ozonation of Nitrobenzene in a High-Gravity Rotating Packed Bed. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c05751] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Shengjuan Shao
- Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China
| | - Du Lei
- Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Yao Song
- Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Lina Liang
- Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Youzhi Liu
- Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Weizhou Jiao
- Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| |
Collapse
|
20
|
Liu B, Chen B, Zhang B, Song X, Zeng G, Lee K. Photocatalytic ozonation of offshore produced water by TiO 2 nanotube arrays coupled with UV-LED irradiation. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123456. [PMID: 32688191 DOI: 10.1016/j.jhazmat.2020.123456] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Offshore produced water (OPW) containing hazardous substances such as polycyclic aromatic hydrocarbons (PAHs) needs to be treated prior to discharge. This study integrated a photocatalytic ozonation system with TiO2 nanotube arrays (TNA) and UV-light-emitted diode (UV-LED) irradiation and applied to treat OPW. Experimental and modeling efforts were made to evaluate the degradation efficiencies of PAHs, examine the behaviors of the OPW composition (e.g., phenols, iodide, and bromide), and investigate the oxidation intermediates and the associated toxicity and biodegradability. The results indicated that ozone significantly enhanced the oxidation rates and removed the PAHs within 30 min, while the TNA showed strong photocatalytic capability. In the early stage, iodide was a strong ozone competitor, accelerating phenol degradation but inhibiting PAH oxidation, whereas UV-LED fortified the effect. The degradation of aromatics was altered by iodide and bromide at different stages. The contributions of four toxicants to the acute toxicity of OPW were quantified and ranked (PAHs > bromoform > phenols > dibromopentane). The EC50 value increased from 3 % to 57 %, and the biodegradability was doubled with less footprint in 28-day biodegradation tests. Overall, it is recommended to sequentially oxidize the matrix of OPW by ozonation and PAHs by the UV-LED/TNA/ozone system.
Collapse
Affiliation(s)
- Bo Liu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada.
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Xing Song
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Ganning Zeng
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada; College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Kenneth Lee
- Ecosystem Science, Fisheries and Oceans Canada, Ottawa, ON, K1A 0E6, Canada
| |
Collapse
|
21
|
Jothinathan L, Cai QQ, Ong SL, Hu JY. Organics removal in high strength petrochemical wastewater with combined microbubble-catalytic ozonation process. CHEMOSPHERE 2021; 263:127980. [PMID: 33297029 DOI: 10.1016/j.chemosphere.2020.127980] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/07/2020] [Accepted: 08/08/2020] [Indexed: 06/12/2023]
Abstract
Ozonation is a well-known and widely applied advanced oxidation process (AOP) for industrial wastewater treatment, while the ozonation efficiency might be limited by low mass transfer, poor solubility, and rapid decomposition rate of ozone molecules in the aqueous phase. The present study aims to investigate the feasibility of combined microbubble-catalytic ozonation process (M-O3/Fe/GAC) for improving the ozonation efficiency during treatment of petrochemical wastewater (PCW). M-O3/Fe/GAC process optimization was carried out with different pH conditions, ozone dosages and catalyst loadings. The optimum operating conditions were identified as 50 mg L-1 ozone dosage, real PCW pH (7.0-7.5) and 4 g L-1 catalyst loading. Among different ozonation processes, M-O3/Fe/GAC process achieved the highest chemical oxidation demand (COD) removal efficiency of 88%, which is 18% and 43% higher than those achieved by the microbubble and macrobubble ozonation processes, respectively. Phenolic compounds presented in PCW could be reduced by 63% within 15 min in M-O3/Fe/GAC treatment process. Long-term continuous flow studies suggested M-O3/Fe/GAC process to be the most cost-effective technology for PCW treatment with an operating cost of S$0.18 kg-1 COD and S$0.4 m-3 with good catalyst stability. Liquid size exclusion chromatography with organic carbon detection (LC-OCD) data suggested humic substances to be the dominant organic species in PCW, M-O3/Fe/GAC could achieve significant humic substances removal and biodegradability enhancement in PCW. Kinetics and mechanism studies revealed that organics removal in M-O3/Fe/GAC was 1.8 times higher than that in microbubble ozonation process, and hydroxyl radical (●OH) was the dominant oxidant specie for organics removal in M-O3/Fe/GAC process.
Collapse
Affiliation(s)
- L Jothinathan
- Sembcorp-NUS Corporate Laboratory, National University of Singapore, Sembcorp-NUS Corporate Laboratory C/o FoE, Block E1A, #04-01, 1 Engineering Drive 2, 117576, Singapore; Department of Civil & Environmental Engineering, Faculty of Engineering, National University of Singapore, Block E1A, #07-01, 1 Engineering Drive 2, 117576, Singapore
| | - Q Q Cai
- Sembcorp-NUS Corporate Laboratory, National University of Singapore, Sembcorp-NUS Corporate Laboratory C/o FoE, Block E1A, #04-01, 1 Engineering Drive 2, 117576, Singapore; Department of Civil & Environmental Engineering, Faculty of Engineering, National University of Singapore, Block E1A, #07-01, 1 Engineering Drive 2, 117576, Singapore
| | - S L Ong
- Sembcorp-NUS Corporate Laboratory, National University of Singapore, Sembcorp-NUS Corporate Laboratory C/o FoE, Block E1A, #04-01, 1 Engineering Drive 2, 117576, Singapore; Department of Civil & Environmental Engineering, Faculty of Engineering, National University of Singapore, Block E1A, #07-01, 1 Engineering Drive 2, 117576, Singapore
| | - J Y Hu
- Sembcorp-NUS Corporate Laboratory, National University of Singapore, Sembcorp-NUS Corporate Laboratory C/o FoE, Block E1A, #04-01, 1 Engineering Drive 2, 117576, Singapore; Department of Civil & Environmental Engineering, Faculty of Engineering, National University of Singapore, Block E1A, #07-01, 1 Engineering Drive 2, 117576, Singapore.
| |
Collapse
|
22
|
He C, Wang J, Wang C, Zhang C, Hou P, Xu X. Catalytic ozonation of bio-treated coking wastewater in continuous pilot- and full-scale system: Efficiency, catalyst deactivation and in-situ regeneration. WATER RESEARCH 2020; 183:116090. [PMID: 32645581 DOI: 10.1016/j.watres.2020.116090] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/03/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
In this study, the performance of catalytic ozonation in the treatment of bio-treated coking wastewater (BCW) using pilot- and full-scale systems was investigated. Additionally, the removal efficiency of organic pollutants from BCW, the deactivation mechanism of MnxCe1-xO2/γ-Al2O3, and backflushing optimization for in-situ catalyst regeneration, which have not been previously investigated, were analysed. Results of the 12-month pilot scale experiments showed that catalytic ozonation resulted in the effective removal of organic pollutants when backflushing was applied as an in-situ catalyst regeneration strategy. The effluent chemical oxygen demand (COD) content decreased from 150 to 78 mg L-1, and remained below a discharge limitation of 80 mg L-1, and the stable COD removal efficiencies (from 56.0% to 47.9%) indicated that catalyst deactivation, which primarily resulted from the deposition of inorganic salts on the surface of the catalyst that limited interaction between ozone and active sites and/or prevented electrons transfer, was primarily inhibited by backflushing. The catalyst regeneration via in-situ air- and water-backflushing was attributed to the scrubbing, collision, and/or the loosing effect. Additionally, in the full-scale experiment, the catalytic ozonation process with in-situ alternative backflushing exhibited a stable COD removal efficiency (above 45.6%) for 885 days when water- and air-flushing strengths of 10 L m-2 s-1 and 15 L m-2 s-1, respectively, were applied with a 7-day regeneration interval. Therefore, the results of this study provide new insights into catalytic ozonation and support its engineering application in BCW treatment.
Collapse
Affiliation(s)
- Can He
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China; State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Jianbing Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China; State Key Laboratory of Coal Resource and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, PR China.
| | - Chunrong Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Chunhui Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Pin Hou
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Xieyang Xu
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| |
Collapse
|
23
|
Preparation of the Mn-Fe-Ce/γ-Al2O3 ternary catalyst and its catalytic performance in ozone treatment of dairy farming wastewater. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.01.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
|
24
|
Fang C, Gao X, Zhang X, Zhu J, Sun SP, Wang X, Wu WD, Wu Z. Facile synthesis of alkaline-earth metal manganites for the efficient degradation of phenolic compounds via catalytic ozonation and evaluation of the reaction mechanism. J Colloid Interface Sci 2019; 551:164-176. [DOI: 10.1016/j.jcis.2019.05.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 11/16/2022]
|
25
|
Li Y, Xu J, Qian M, Yu J, Pan J, Guan B. The role of surface hydroxyl concentration on calcinated alumina in catalytic ozonation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:15373-15380. [PMID: 30937738 DOI: 10.1007/s11356-019-04909-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
Alumina has been used as a catalyst for ozonation, surface hydroxyl on which is regarded as the active center for ozone attack, but the influences of hydroxyl generation are still vague. Here, we prepared alumina with different hydroxyl concentrations by adjusting calcination temperatures, of which the catalytic activity was evaluated with the mineralization degree of phenol, and then revealed the active sites of hydroxyl generation with characterization of XRD, Py-IR, and NH3-TPD. The results show that the greater the hydroxyl concentration, the higher the catalytic activity, demonstrating that surface hydroxyl contributes to its catalytic activity. The effect of calcination temperatures on hydroxyl concentration and catalytic activity is in accordance with the amount of weak Lewis acid sites on the surface of alumina, illustrating the surface hydroxyl derived from the decomposition of water adsorbed on weak Lewis acid sites. However, the catalytic performance of the alumina decreases slowly in a long-term reaction owing to the active center reduction resulted from the coverage by organic acids from phenol degradation. The present work reveals the influences of hydroxyl generation which are beneficial for adjusting surface hydroxyl regarded as active site for ozone attack and the reason of catalyst deactivation, which provides guideline for the rational design of catalyst.
Collapse
Affiliation(s)
- Yu Li
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jie Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Mengqian Qian
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jie Yu
- Faculty of Architectural Civil Engineering and Environment, Ningbo University, Ningbo, 315211, China
| | - Jian Pan
- Environmental Technology Innovation Center of Jiande, Hangzhou, 311600, China
| | - Baohong Guan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
26
|
Khani M, Mousavi SE, Pahlavanzadeh H, Ale Ebrahim H, Mozaffari A. Study of MoO 3-γAl 2O 3 catalysts behavior in selective catalytic reduction of SO 2 toxic gas to sulfur with CH 4. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9686-9696. [PMID: 30734256 DOI: 10.1007/s11356-019-04419-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 01/28/2019] [Indexed: 06/09/2023]
Abstract
In the present study, a detailed investigation was carried out on MoO3 alumina-supported catalysts behavior in selective catalytic reduction of SO2 to sulfur with CH4. At first, four different molybdenum catalysts with weight rates of 0, 5, 10, and 15 were impregnated on γ-alumina to be characterized using XRD, SEM, BET, BJH, and N2 adsorption. Then, to find the most active catalyst, temperature dependency test was performed on all of the prepared catalysts and the result representing Al2O3-Mo10 as the best catalyst. In next step, the effects of feed gas composition, space velocity, and long-term activity, as an important industrial factor, were tested on Al2O3-Mo10. It was revealed instantaneously from the beginning, MoO3 specie started to convert mainly into MoS2 and MoO2, and a minor part into Mo2C, which is terminated after 750 min achieving a stable condition. Thereafter, SO2 conversion and sulfur selectivity increased from 85.8 to 89.4% and 99.4 to 99.7%, respectively. XRD graph of the used catalyst and TPO thermogravimetric/mass-spectra proved possible happening of the proposed mechanism in long-term activity. At the end, mean activation energy was determined based on Arrhenius model in temperature range of 550 to 800 °C, with a value of 0.33 eV for Al2O3-Mo10.
Collapse
Affiliation(s)
- Masoud Khani
- Faculty of Chemical Engineering, Petrochemical center of Excellency, Amirkabir University of Technology, Tehran, Iran
| | | | | | - Habib Ale Ebrahim
- Faculty of Chemical Engineering, Petrochemical center of Excellency, Amirkabir University of Technology, Tehran, Iran
| | - Abbas Mozaffari
- Research and Development Unit, Sarcheshmeh Copper Complex, Kerman, Iran
| |
Collapse
|
27
|
Bai Z, Wang J, Yang Q. Iron doped fibrous-structured silica nanospheres as efficient catalyst for catalytic ozonation of sulfamethazine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10090-10101. [PMID: 29383642 DOI: 10.1007/s11356-018-1324-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 01/17/2018] [Indexed: 06/07/2023]
Abstract
Sulfonamide antibiotics are ubiquitous pollutants in aquatic environments due to their large production and extensive application. In this paper, the iron doped fibrous-structured silica (KCC-1) nanospheres (Fe-KCC-1) was prepared, characterized, and applied as a catalyst for catalytic ozonation of sulfamethazine (SMT). The effects of ozone dosage, catalyst dosage, and initial concentration of SMT were examined. The experimental results showed that Fe-KCC-1 had large surface area (464.56 m2 g-1) and iron particles were well dispersed on the catalyst. The catalyst had high catalytic performance especially for the mineralization of SMT, with mineralization ratio of about 40% in a wide pH range. With addition of Fe-KCC-1, the ozone utilization increased nearly two times than single ozonation. The enhancement of SMT degradation was mainly due to the surface reaction, and the increased mineralization of SMT was due to radical mechanism. Fe-KCC-1 was an efficient catalyst for SMT degradation in catalytic ozonation system.
Collapse
Affiliation(s)
- Zhiyong Bai
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing, 100084, People's Republic of China
- School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| | - Jianlong Wang
- Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing, 100084, People's Republic of China.
- Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing, 100084, People's Republic of China.
| | - Qi Yang
- School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
| |
Collapse
|
28
|
Chen Y, Wu Y, Liu C, Guo L, Nie J, Chen Y, Qiu T. Low-temperature conversion of ammonia to nitrogen in water with ozone over composite metal oxide catalyst. J Environ Sci (China) 2018; 66:265-273. [PMID: 29628094 DOI: 10.1016/j.jes.2017.04.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 04/26/2017] [Indexed: 05/27/2023]
Abstract
As one of the most important water pollutants, ammonia nitrogen emissions have increased year by year, which has attracted people's attention. Catalytic ozonation technology, which involves production of ·OH radical with strong oxidation ability, is widely used in the treatment of organic-containing wastewater. In this work, MgO-Co3O4 composite metal oxide catalysts prepared with different fabrication conditions have been systematically evaluated and compared in the catalytic ozonation of ammonia (50mg/L) in water. In terms of high catalytic activity in ammonia decomposition and high selectivity for gaseous nitrogen, the catalyst with MgO-Co3O4 molar ratio 8:2, calcined at 500°C for 3hr, was the best one among the catalysts we tested, with an ammonia nitrogen removal rate of 85.2% and gaseous nitrogen selectivity of 44.8%. In addition, the reaction mechanism of ozonation oxidative decomposition of ammonia nitrogen in water with the metal oxide catalysts was discussed. Moreover, the effect of coexisting anions on the degradation of ammonia was studied, finding that SO42- and HCO3- could inhibit the catalytic activity while CO32- and Br- could promote it. The presence of coexisting cations had very little effect on the catalytic ozonation of ammonia nitrogen. After five successive reuses, the catalyst remained stable in the catalytic ozonation of ammonia.
Collapse
Affiliation(s)
- Yunnen Chen
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science &Technology, Jiangxi 341000, China.
| | - Ye Wu
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science &Technology, Jiangxi 341000, China
| | - Chen Liu
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science &Technology, Jiangxi 341000, China
| | - Lin Guo
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science &Technology, Jiangxi 341000, China
| | - Jinxia Nie
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science &Technology, Jiangxi 341000, China
| | - Yu Chen
- Monash Centre for Electron Microscopy (MCEM), Monash University, 3800, VIC, Australia
| | - Tingsheng Qiu
- Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Jiangxi University of Science &Technology, Jiangxi 341000, China.
| |
Collapse
|
29
|
Li Z, Liu F, You H, Ding Y, Yao J, Jin C. Advanced treatment of biologically pretreated coal chemical industry wastewater using the catalytic ozonation process combined with a gas-liquid-solid internal circulating fluidized bed reactor. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:1931-1941. [PMID: 29676750 DOI: 10.2166/wst.2018.073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper investigated the performance of the combined system of catalytic ozonation and the gas-liquid-solid internal circulating fluidized bed reactor for the advanced treatment of biologically pretreated coal chemical industry wastewater (CCIW). The results indicated that with ozonation alone for 60min, the removal efficiency of chemical oxygen demand (COD) could reach 34%. The introduction of activated carbon, pumice, γ-Al2O3 carriers improved the removal performance of COD, and the removal efficiency was increased by 8.6%, 4.2%, 2%, respectively. Supported with Mn, the catalytic performance of activated carbon and γ-Al2O3 were improved significantly with COD removal efficiencies of 46.5% and 41.3%, respectively; however, the promotion effect of pumice supported with Mn was insignificant. Activated carbon supported with Mn had the best catalytic performance. The catalytic ozonation combined system of MnOX/activated carbon could keep ozone concentration at a lower level in the liquid phase, and promote the transfer of ozone from the gas phase to the liquid phase to improve ozonation efficiency.
Collapse
Affiliation(s)
- Zhipeng Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China E-mail: ; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China E-mail: ; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Hong You
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China E-mail: ; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Yi Ding
- Marine College, Shandong University at Weihai, Weihai 264209, China
| | - Jie Yao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China E-mail:
| | - Chao Jin
- Department of Systems Design Engineering, University of Waterloo, Waterloo N2 L 3G1, Canada
| |
Collapse
|
30
|
Ghuge SP, Saroha AK. Catalytic ozonation for the treatment of synthetic and industrial effluents - Application of mesoporous materials: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 211:83-102. [PMID: 29408086 DOI: 10.1016/j.jenvman.2018.01.052] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 01/15/2018] [Accepted: 01/17/2018] [Indexed: 06/07/2023]
Affiliation(s)
- Santosh P Ghuge
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Anil K Saroha
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| |
Collapse
|
31
|
Bai Z, Yang Q, Wang J. Catalytic ozonation of dimethyl phthalate using Fe 3O 4/multi-wall carbon nanotubes. ENVIRONMENTAL TECHNOLOGY 2017; 38:2048-2057. [PMID: 27748641 DOI: 10.1080/09593330.2016.1245360] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 10/01/2016] [Indexed: 06/06/2023]
Abstract
In this paper, Fe3O4/multi-wall carbon nanotubes composites were prepared, characterized and used as a catalyst for enhancing the ozonation of dimethyl phthalate (DMP) in aqueous solution. The experimental results showed that DMP degradation and mineralization increased by 26% and 20%, respectively, in catalytic ozonation compared with single ozonation, and more H2O2 and organic acids were produced during catalytic ozonation process than single ozonation. The effect of pH, ozone concentration and catalyst dosage on DMP degradation was determined. The addition of tert-butanol and phosphates showed a negative effect on DMP degradation, suggesting that the acidic sites on the catalyst is favorable to ozone decomposition to produce hydroxyl radicals. The possible mechanism for catalytic ozonation of DMP was tentatively proposed. The adsorption of ozone and organics onto the surface of catalyst could improve the DMP degradation.
Collapse
Affiliation(s)
- Zhiyong Bai
- a School of Water Resources and Environment , China University of Geosciences , Beijing , People's Republic of China
- b Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET , Tsinghua University , Beijing , People's Republic of China
| | - Qi Yang
- a School of Water Resources and Environment , China University of Geosciences , Beijing , People's Republic of China
| | - Jianlong Wang
- b Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET , Tsinghua University , Beijing , People's Republic of China
- c Beijing Key Laboratory of Radioactive Waste Treatment, INET , Tsinghua University , Beijing , People's Republic of China
| |
Collapse
|
32
|
Chen C, Li Y, Ma W, Guo S, Wang Q, Li QX. Mn-Fe-Mg-Ce loaded Al 2 O 3 catalyzed ozonation for mineralization of refractory organic chemicals in petroleum refinery wastewater. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.054] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
33
|
Comparison of Efficiencies and Mechanisms of Catalytic Ozonation of Recalcitrant Petroleum Refinery Wastewater by Ce, Mg, and Ce-Mg Oxides Loaded Al2O3. Catalysts 2017. [DOI: 10.3390/catal7030072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|