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Sarentuya, Bai H, Amurishana. Synthesis of Bi2S3-TiO2 nanocomposite and its electrochemical and enhanced photocatalytic properties for phenol degradation. INT J ELECTROCHEM SC 2023. [DOI: 10.1016/j.ijoes.2023.100071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Mu H, Qiu Q, Cheng R, Qiu L, Xie K, Gao M, Liu G. Adsorption-Enhanced Ceramic Membrane Filtration Using Fenton Oxidation for Advanced Treatment of Refinery Wastewater: Treatment Efficiency and Membrane-Fouling Control. MEMBRANES 2021; 11:membranes11090651. [PMID: 34564468 PMCID: PMC8467550 DOI: 10.3390/membranes11090651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 11/16/2022]
Abstract
With the development of the refining industry, the treatment of refinery wastewater has become an urgent problem. In this study, a ceramic membrane (CM) was combined with Fenton-activated carbon (AC) adsorption to dispose of refinery wastewater. The effect of the combined process was analyzed using excitation-emission matrix (EEM), ultraviolet-visible (UV-vis) and Fourier transform infrared spectroscopies (FTIR). Compared with direct filtration, the combined process could significantly improve the removal of organic pollution, where the removal rate of the COD and TOC could be 70% and the turbidity removal rate was above 97%. It was found that the effluent could meet the local standards. In this study, the membrane fouling was analyzed for the impact of the pretreatment on the membrane direction. The results showed that Fenton-AC absorption could effectively alleviate membrane fouling. The optimal critical flux of the combined process was increased from 60 to 82 L/(m2·h) compared with direct filtration. After running for about 20 d, the flux remained at about 55 L/(m2·h) and the membrane-fouling resistance was only 1.2 × 1012 m-1. The Hermia model revealed that cake filtration was present in the early stages of the combined process. These results could be of great use in improving the treatment efficiency and operation cycle of refinery wastewater.
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Affiliation(s)
- Haotian Mu
- School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; (H.M.); (R.C.); (K.X.); (M.G.)
| | - Qi Qiu
- School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China;
| | - Renzhen Cheng
- School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; (H.M.); (R.C.); (K.X.); (M.G.)
| | - Liping Qiu
- School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; (H.M.); (R.C.); (K.X.); (M.G.)
- Research Center for Functional Material & Water Purification Engineering of Shandong Province, Jinan 250022, China
- Correspondence: (L.Q.); (G.L.)
| | - Kang Xie
- School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; (H.M.); (R.C.); (K.X.); (M.G.)
- Research Center for Functional Material & Water Purification Engineering of Shandong Province, Jinan 250022, China
| | - Mingchang Gao
- School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; (H.M.); (R.C.); (K.X.); (M.G.)
| | - Guicai Liu
- School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China; (H.M.); (R.C.); (K.X.); (M.G.)
- Research Center for Functional Material & Water Purification Engineering of Shandong Province, Jinan 250022, China
- Correspondence: (L.Q.); (G.L.)
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Ultra-fast spill oil recovery using a mesoporous lignin based nanocomposite prepared from date palm pits (Phoenix dactylifera L.). Int J Biol Macromol 2019; 130:139-147. [DOI: 10.1016/j.ijbiomac.2019.02.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 02/06/2019] [Accepted: 02/06/2019] [Indexed: 11/22/2022]
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Pitfalls of Wastewater Treatment in Oil Refinery Enterprises in Kazakhstan—A System Approach. SUSTAINABILITY 2019. [DOI: 10.3390/su11061618] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The present article is an assessment of wastewater treatment processes in the oil refinery sector in Kazakhstan by comparing relevant experience of developed and developing countries. The legislation in this sphere, the treatment methods, the discharge process and the effect on the environment were evaluated following international and national regulations. In our study, the wastewater systems in three factories in Kazakhstan were assessed. Results show that, even though the environmental regulation in Kazakhstan promotes the polluter pays principle and follows the World Health Organization (WHO) recommendations, the oil refinery plants in Kazakhstan still contain exceeding concentrations of pollutants in their effluents. One issue is that the local legislation allows disposal of wastewater to natural or artificial ponds as long as the concentrations of pollutants in effluents are less than the already existing concentrations in the pond. Consequently, the factories can use ponds with an initially high concentration of contaminants. The high initial concentration of pollutants in the pond water is due to wastewater discharged before the implementation of current environmental regulations. This issue in the current legislation leads to the situation where there is no incentive for efficient wastewater treatment. The national law also lacks regulations regarding which methodology should be used to assess the pollutants in the wastewater. Thus, the control by national environmental office for each enterprise is negotiated separately between the factory and the governmental body. This gives the factory a strong position to define the parameters assessing the effluents. This has led to none of the factories measuring, e.g., heavy metals in discharged wastewater. Total petroleum hydrocarbons (TPH) concentration in wastewater is often exceeded at each factory and there is no analysis done for different hydrocarbon fraction. To overcome the issues described in the present study, we strongly recommended a unified and transparent methodology for the country’s oil refinery industry to assess important pollutants in discharged wastewater.
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Liu L, Wang L, Song W, Yang L, Yin L, Xia S, Wang H, Strong PJ, Song Z. Crude oil removal from aqueous solution using raw and carbonized Xanthoceras sorbifolia shells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:29325-29334. [PMID: 30121766 DOI: 10.1007/s11356-018-2895-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Fruit shell residue from Xanthoceras sorbifolia was investigated as a potential biosorbent to remove crude oil from aqueous solution. The shell powder and its carbonized material were compared while assessing various factors that influenced oil removal capacity. The structure and sorption mechanism were characterized using scanning electron microscopy and Fourier-transform infrared spectroscopy. The oil removal capacity of the raw material (75.1 mg g-1) was better than the carbonized material (49.5 mg g-1). The oil removal capacity increased with greater saponin content, indicating that hydrophobic and lipophilic surface characteristics of the saponins improved adsorption by the raw X. sorbifolia shell. An orthogonal experimental design was used to optimize the adsorption. Using 4 g L-1 of raw X. sorbifolia shell (particle size of < 0.15 mm), the highest crude oil removal efficiency was obtained using an initial oil concentration of 400 mg L-1, adsorption temperature of 30 °C, adsorption time of 10 min at a shaking speed of 150 rpm. The adsorption of crude oil onto X. sorbifolia shell was best described using a pseudo-second-order kinetic model. Raw X. sorbifolia shell material was more efficient than the carbonized material at crude oil removal from aqueous solution. This was attributable to the functional groups of saponins in raw X. sorbifolia shell. This study highlights that some agricultural and forest residues could be a promising source of low-cost biosorbents for oil contaminants from water-without requiring additional processing such as carbonization.
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Affiliation(s)
- Linan Liu
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China
| | - Lihua Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China.
| | - Wenhong Song
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China
| | - Liang Yang
- College of Land and Environment, Shenyang Agricultural University, Shenyang, 110866, China
| | - Liming Yin
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning Province, 110016, People's Republic of China
| | - Shaopan Xia
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Hailong Wang
- School of Environment and Chemical Engineering, Foshan University, Foshan, 528000, Guangdong, China
- School of Environmental and Resource Sciences, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China
| | - Peter James Strong
- Queensland University of Technology, GPO Box 2432, 2 George St, Brisbane, QLD, 4001, Australia
| | - Zhaoliang Song
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China.
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Osin OA, Yu T, Cai X, Jiang Y, Peng G, Cheng X, Li R, Qin Y, Lin S. Photocatalytic Degradation of 4-Nitrophenol by C, N-TiO 2: Degradation Efficiency vs. Embryonic Toxicity of the Resulting Compounds. Front Chem 2018; 6:192. [PMID: 29915782 PMCID: PMC5994427 DOI: 10.3389/fchem.2018.00192] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 05/14/2018] [Indexed: 12/03/2022] Open
Abstract
The photocatalytic activity of TiO2 based photocatalysts can be improved by structural modification and elemental doping. In this study, through rational design, one type of carbon and nitrogen co-doped TiO2 (C, N-TiO2) photocatalyst with mesoporous structure was synthesized with improved photocatalytic activity in degrading 4-nitrophenol under simulated sunlight irradiation. The photocatalytic degradation efficiency of the C, N-TiO2 was much higher than the anatase TiO2 (A-TiO2) based on absorbance and HPLC analyses. Moreover, using zebrafish embryos, we showed that the intermediate degradation compounds generated by photocatalytic degradation of 4-nitrophenol had higher toxicity than the parent compound. A repeated degradation process was necessary to render complete degradation and non-toxicity to the zebrafish embryos. Our results demonstrated the importance of evaluating the photocatalytic degradation efficiency in conjunction with the toxicity assessment of the degradation compounds.
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Affiliation(s)
- Oluwatomiwa A Osin
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, Shanghai, China.,UN Environment-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai, China
| | - Tianyu Yu
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, Shanghai, China.,UN Environment-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai, China
| | - Xiaoming Cai
- Center for Genetic Epidemiology and Genomics, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Yue Jiang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, Shanghai, China
| | - Guotao Peng
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, Shanghai, China
| | - Xiaomei Cheng
- Institute for Translational Nanomedicine, Shanghai East Hospital, Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, China
| | - Ruibin Li
- School for Radiological and Interdisciplinary Sciences (RAD-X), Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Medical College of Soochow University, Suzhou, China
| | - Yao Qin
- Institute for Translational Nanomedicine, Shanghai East Hospital, Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, China
| | - Sijie Lin
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Shanghai Institute of Pollution Control and Ecological Security, Biomedical Multidisciplinary Innovation Research Institute, Shanghai East Hospital, Tongji University, Shanghai, China.,UN Environment-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai, China
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