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Changmai M, Pasawan M, Purkait M. Treatment of oily wastewater from drilling site using electrocoagulation followed by microfiltration. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.08.007] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Neta LSDF, Borges CP, Habert AC. Evaluation of mass transfer in a novel hollow fiber module design using an electrochemical technique. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2017. [DOI: 10.1590/0104-6632.20170343s20150452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ding Y, Maruf S, Aghajani M, Greenberg AR. Surface patterning of polymeric membranes and its effect on antifouling characteristics. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1201115] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yifu Ding
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, USA
| | - Sajjad Maruf
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Masoud Aghajani
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Alan R. Greenberg
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
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Elanchezhiyan SSD, Sivasurian N, Meenakshi S. Enhancement of oil recovery using zirconium-chitosan hybrid composite by adsorptive method. Carbohydr Polym 2016; 145:103-13. [DOI: 10.1016/j.carbpol.2016.02.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 01/21/2016] [Accepted: 02/15/2016] [Indexed: 11/16/2022]
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Pawlowski S, Geraldes V, Crespo JG, Velizarov S. Computational fluid dynamics (CFD) assisted analysis of profiled membranes performance in reverse electrodialysis. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.11.031] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Paixão SM, Silva TP, Arez BF, Alves L. Advances in the Reduction of the Costs Inherent to Fossil Fuels' Biodesulfurization towards Its Potential Industrial Application. APPLYING NANOTECHNOLOGY TO THE DESULFURIZATION PROCESS IN PETROLEUM ENGINEERING 2016. [DOI: 10.4018/978-1-4666-9545-0.ch013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biodesulfurization (BDS) process consists on the use of microorganisms for the removal of sulfur from fossil fuels. Through BDS it is possible to treat most of the organosulfur compounds recalcitrant to the conventional hydrodesulfurization (HDS), the petroleum industry's solution, at mild operating conditions, without the need for molecular hydrogen or metal catalysts. This technique results in lower emissions, smaller residue production and less energy consumption, which makes BDS an eco-friendly process that can complement HDS making it more efficient. BDS has been extensively studied and much is already known about the process. Clearly, BDS presents advantages as a complementary technique to HDS; however its commercial use has been delayed by several limitations both upstream and downstream the process. This study will comprehensively review and discuss key issues, like reduction of the BDS costs, advances and/or challenges for a competitive BDS towards its potential industrial application aiming ultra low sulfur fuels.
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Affiliation(s)
| | | | - Bruno F. Arez
- Laboratório Nacional de Energia e Geologia, Portugal
| | - Luís Alves
- Laboratório Nacional de Energia e Geologia, Portugal
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Elanchezhiyan SSD, Sivasurian N, Meenakshi S. Efficacy of La3+entrapped chitosan bio-polymeric matrix for the recovery of oil from oil-in-water emulsion. J Appl Polym Sci 2015. [DOI: 10.1002/app.43218] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- S. SD. Elanchezhiyan
- Department of Chemistry; The Gandhigram Rural Institute-Deemed University; Gandhigram 624 302 Tamil Nadu India
| | - N. Sivasurian
- Department of Chemistry; The Gandhigram Rural Institute-Deemed University; Gandhigram 624 302 Tamil Nadu India
| | - Sankaran Meenakshi
- Department of Chemistry; The Gandhigram Rural Institute-Deemed University; Gandhigram 624 302 Tamil Nadu India
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Tai MH, Juay J, Sun DD, Leckie JO. Carbon–silica composite nanofiber membrane for high flux separation of water-in-oil emulsion – Performance study and fouling mechanism. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fouladitajar A, Zokaee Ashtiani F, Dabir B, Rezaei H, Valizadeh B. Response surface methodology for the modeling and optimization of oil-in-water emulsion separation using gas sparging assisted microfiltration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:2311-2327. [PMID: 25182429 DOI: 10.1007/s11356-014-3511-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
Response surface methodology (RSM) and central composite design (CCD) were used to develop models for optimization and modeling of a gas sparging assisted microfiltration of oil-in-water (o/w) emulsion. The effect of gas flow rate (Q G ), oil concentration (C oil ), transmembrane pressure (TMP), and liquid flow rate (Q L ) on the permeate flux and oil rejection were studied by RSM. Two sets of experiments were designed to investigate the effects of different gas-liquid two-phase flow regimes; low and high gas flow rates. Two separate RSM models were developed for each experimental set. The oil concentration and TMP were found to be the most significant factors influencing both permeate flux and rejection. Also, the interaction between these parameters was the most significant one. At low Q G , the more the gas flow rate, the higher the permeate flux; however, in the high gas flow rate region, higher Q G did not necessarily improve the permeate flux. In the case of rejection, gas and liquid flow rates were found to be insignificant. The optimum process conditions were found to be the following: Q G = 1.0 (L/min), C oil = 1,290 (mg/L), TMP = 1.58 (bar), and Q L = 3.0 (L/min). Under these optimal conditions, maximum permeate flux and rejection (%) were 115.9 (L/m(2)h) and 81.1 %, respectively.
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Affiliation(s)
- Amir Fouladitajar
- Department of Chemical Engineering, Amirkabir University of Technology, No. 424, Hafez Ave., Tehran, Iran
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Feng C, Sun H, Li S, Camarillo MK, Stringfellow WT, Liang Y. Treatment of oil-water emulsion from the machinery industry by Fenton's reagent. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 71:1884-1892. [PMID: 26067510 DOI: 10.2166/wst.2015.145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An oil-water emulsion from the machinery industry was treated using Fenton's reagent. The objective was to reduce the high chemical oxygen demand (COD) of this waste stream so that it would meet the COD effluent limit of Chinese Standard JS-7740-95. The optimal [H2O2]/[Fe2+] ratio for COD removal was 3. An orthogonal experimental design was developed based on the optimal [H2O2]/[Fe2+] ratio to evaluate the significance of four parameters relevant to the treatment process, namely, H2O2 dosage, initial pH, oxidation time and coagulation pH. The influence of the four parameters on COD removal efficiency decreased as follows: H2O2 dosage>oxidation time>coagulation pH>initial pH. The COD removal efficiency was further investigated based on the most important single-factor parameter, which was H2O2 dosage, as discovered in the orthogonal test. A well-fitted empirical correlation was obtained from the single-factor analysis and up to 98% COD removal was attained using 50 mM H2O2. Using the doses and conditions identified in this study, the treated oil-water emulsion can be discharged according to Chinese Standard JS-7740-95.
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Affiliation(s)
- Chao Feng
- Pacific Resources Research Center, School of Engineering and Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA E-mail:
| | - Henghu Sun
- Pacific Resources Research Center, School of Engineering and Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA E-mail: ; Green Construction Materials and Circulation Economy Center, Architectural Design and Research Institute of Tsinghua University Co., Ltd, Haidian District, Beijing 100084, China
| | - Suqin Li
- Ecological Engineering Department, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Mary Kay Camarillo
- Pacific Resources Research Center, School of Engineering and Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA E-mail:
| | - William T Stringfellow
- Pacific Resources Research Center, School of Engineering and Computer Science, University of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, USA E-mail: ; Earth Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Yangyang Liang
- Ecological Engineering Department, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
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Zhou K, Zhang QG, Li HM, Guo NN, Zhu AM, Liu QL. Ultrathin cellulose nanosheet membranes for superfast separation of oil-in-water nanoemulsions. NANOSCALE 2014; 6:10363-10369. [PMID: 25073443 DOI: 10.1039/c4nr03227f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Oily wastewater is generated in diverse industrial processes, and its treatment has become crucial due to increasing environmental concerns. Herein, novel ultrathin nanoporous membranes of cellulose nanosheets have been fabricated for separation of oil-in-water nanoemulsions. The fabrication approach is facile and environmentally friendly, in which cellulose nanosheets are prepared by freeze-extraction of a very dilute cellulose solution. The as-prepared membranes have a cellulose nanosheet layer with a cut-off of 10-12 nm and a controllable thickness of 80-220 nm. They allow ultrafast water permeation and exhibit excellent size-selective separation properties. A 112 nm-thick membrane has a water flux of 1620 l m(-2) h(-1) bar(-1) and a ferritin rejection of 92.5%. These membranes have been applied to remove oil from its aqueous nanoemulsions successfully, and they show an ultrafast and effective separation of oil-in-water nanoemulsions. The newly developed ultrathin cellulose membranes have a wide application in oily wastewater treatment, separation and purification of nanomaterials.
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Affiliation(s)
- Ke Zhou
- Department of Chemical & Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China.
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Separation Properties of Wastewater Containing O/W Emulsion Using Ceramic Microfiltration/Ultrafiltration (MF/UF) Membranes. MEMBRANES 2013; 3:87-97. [PMID: 24958621 PMCID: PMC4021936 DOI: 10.3390/membranes3020087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 06/06/2013] [Accepted: 06/10/2013] [Indexed: 11/18/2022]
Abstract
Washing systems using water soluble detergent are used in electrical and mechanical industries and the wastewater containing O/W emulsion are discharged from these systems. Membrane filtration has large potential for the efficient separation of O/W emulsion for reuses of treated water and detergent. The separation properties of O/W emulsions by cross-flow microfiltration and ultrafiltration were studied with ceramic MF and UF membranes. The effects of pore size; applied pressure; cross-flow velocity; and detergent concentration on rejection of O/W emulsion and flux were systematically studied. At the condition achieving complete separation of O/W emulsion the pressure-independent flux was observed and this flux behavior was explained by gel-polarization model. The O/W emulsion tended to permeate through the membrane at the conditions of larger pore size; higher emulsion concentration; and higher pressure. The O/W emulsion could permeate the membrane pore structure by destruction or deformation. These results imply the stability of O/W emulsion in the gel-layer formed on membrane surface play an important role in the separation properties. The O/W emulsion was concentrated by batch cross-flow concentration filtration and the flux decline during the concentration filtration was explained by the gel- polarization model.
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Yan L, Hong S, Li ML, Li YS. Application of the Al2O3–PVDF nanocomposite tubular ultrafiltration (UF) membrane for oily wastewater treatment and its antifouling research. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2008.12.015] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Tir M, Moulai-Mostefa N. Optimization of oil removal from oily wastewater by electrocoagulation using response surface method. JOURNAL OF HAZARDOUS MATERIALS 2008; 158:107-115. [PMID: 18313208 DOI: 10.1016/j.jhazmat.2008.01.051] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2007] [Revised: 01/11/2008] [Accepted: 01/14/2008] [Indexed: 05/26/2023]
Abstract
Electrocoagulation process with sacrificial aluminium anode was used to separate oil from oily wastewater emulsion. A preliminary experimental study was performed to evaluate the most accurate operating parameters, which are then used for the determination of oil removal efficiency. An experimental design using response surface method (RSM) was then applied and oil separation was estimated by measuring turbidity and chemical oxygen demand (COD). An optimal region characterised with low values of turbidity and COD was found. As part of the optimized process, the main effects of the operational parameters were also investigated. The experimental results indicated that electrocoagulation was very efficient and able to achieve 99% turbidity and 90% chemical oxygen demand (COD) in less than 22 min and current density of 25 mA cm(-2). Analysis of variance (ANOVA) showed a high variance coefficient (R(2)) value of 0.998, thus ensuring a satisfactory adjustment of the second-order regression model with the experimental data.
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Affiliation(s)
- Mohamed Tir
- Laboratoire de synthèse pétrochimique, Faculté des Hydrocarbures et de la Chimie, Université M'hamed Bougara, Avenue de l'Indépendance, 35000 Boumerdès, Algeria
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Influence of membrane material and corrugation and process conditions on emulsion microfiltration. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.02.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ohtake H, Yamashita S, Kato J. Development of a New Biotechnological Basis for Improving Industrial Sustainability in Japan. Eng Life Sci 2006. [DOI: 10.1002/elsc.200620124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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The separation of oil from an oil–water–bacteria mixture using a hydrophobic tubular membrane. Biochem Eng J 2005. [DOI: 10.1016/j.bej.2004.11.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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