1
|
Synergistic Effect of Alternating Current-based Electric and Acoustic Fields on Flux Recovery in Crossflow Microfiltration of Synthetic Wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
2
|
Shen Y, Badireddy AR. A Critical Review on Electric Field-Assisted Membrane Processes: Implications for Fouling Control, Water Recovery, and Future Prospects. MEMBRANES 2021; 11:membranes11110820. [PMID: 34832048 PMCID: PMC8618152 DOI: 10.3390/membranes11110820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022]
Abstract
Electrofiltration, an electric field-assisted membrane process, has been a research topic of growing popularity due to its ability to improve membrane performance by providing in situ antifouling conditions in a membrane system. The number of reports on electrofiltration have increased exponentially over the past two decades. These reports explored many innovations, such as novel configurations of an electric field, engineered membrane materials, and interesting designs of foulant compositions and membrane modules. Recent electrofiltration literature focused mainly on compiling results without a comprehensive comparative analysis across different works. The main objective of this critical review is to, first, organize, compare and contrast the results across various electrofiltration studies; second, discuss various types of mechanisms that could be incorporated into electrofiltration and their effect on membrane system performance; third, characterize electrofiltration phenomenon; fourth, interpret the effects of various operational conditions on the performance of electrofiltration; fifth, evaluate the state-of-the-art knowledge associated with modeling efforts in electrofiltration; sixth, discuss the energy costs related to the implementation of electrofiltration; and finally, identify the current knowledge gaps that hinder the transition of the lab-scale observations to industry-scale electrofiltration as well as the future prospects of electrofiltration.
Collapse
|
3
|
Chen P, Xu J, Meng G, Zhao W, Wang H, Zhang L. Influence of oil droplet behavior in electrochemical micromembrane cells on treating oil/water emulsions with low-salt concentrations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 781:146633. [PMID: 33798875 DOI: 10.1016/j.scitotenv.2021.146633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Although flow-through electrode has demonstrated its potential in treating oily wastewater, few studies noted influence of oil droplet behavior on treating oil/water emulsions. In order to explore the influence of oil droplet behavior in a flow-through electrode cell on treating oil/water emulsions with low-salt concentrations, an electrochemical micromembrane cell was applied to treat oil/water emulsions with 0-0.8 g/L NaCl. High chemical oxygen demand (COD) reduction (80-90%) was obtained in treating Sodium dodecylbenzene sulfonate (SDBS) or Tween 80 emulsion by flow-through electrode, while the later had the higher permeate flux (900 mL/min around). The low salt concentration (0.5 g/L NaCl) achieved high COD reduction (87%) and good permeate flux (600 mL/min). Observations using optical microscopy revealed severe deformation of the shape of the charged oil droplet at the flow-through electrode interface. The wetting of oil droplets at the electrode interface occurred when the membrane acted as an anode, which resulted in flow-through electrode fouling, and subsequently, the reduction in permeate flux and treatment efficiency. The results of this study offer an attractive option when using flow-through electrode to treat oil-in-water emulsions under low-salinity conditions.
Collapse
Affiliation(s)
- Peng Chen
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China
| | - Jiali Xu
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China
| | - Guangyuan Meng
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China
| | - Wei Zhao
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China
| | - Hualin Wang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China; State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Lehua Zhang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, China; State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| |
Collapse
|
4
|
Wanke D, da Silva A, Costa C. Modification of PVDF hydrophobic microfiltration membrane with a layer of electrospun fibers of PVP-co-PMMA: Increased fouling resistance. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
5
|
Zare M, Hashemabadi SH, Sheikhi M. Heat Transfer at a Particle‐Tube Wall Contact Point: Impact of Catalyst Configuration on Hot Spots. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mahdi Zare
- Iran University of Science and Technology School of Chemical, Petroleum and Gas Engineering, Computational Fluid Dynamics Research Laboratory 1684613114 Narmak Iran
| | - Seyed Hassan Hashemabadi
- Iran University of Science and Technology School of Chemical, Petroleum and Gas Engineering, Computational Fluid Dynamics Research Laboratory 1684613114 Narmak Iran
| | - Mohammad Sheikhi
- Iran University of Science and Technology School of Chemical, Petroleum and Gas Engineering, Computational Fluid Dynamics Research Laboratory 1684613114 Narmak Iran
| |
Collapse
|
6
|
Soliman EM, Ahmed SA, Fadl AA. Adsorptive removal of oil spill from sea water surface using magnetic wood sawdust as a novel nano-composite synthesized via microwave approach. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:79-90. [PMID: 32399222 PMCID: PMC7203394 DOI: 10.1007/s40201-019-00440-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 12/30/2019] [Indexed: 06/02/2023]
Abstract
Water pollution by oil is a serious environmental problem. Developing new generation of benign adsorbents satisfying several criteria required for real practical application is of great need. This work introduces an effort in this direction, by utilizing a facile synthesis of wood sawdust coated magnetite nanoparticles functionalized stearic acid (WSD@Fe3O4NPs/SA) as a novel nano composite along with its precursor WSD@Fe3O4NPs. SA was covalently bonded to the precursor by amide bond formation via the interaction with the silylating agent 3-aminopropyltrimethoxysilane (3-APTS). This mode of binding is more stronger than the conventional ester bond. Fourier transform infrared (FT-IR), X- ray powder diffraction (XRD), Scanning electron microscope (SEM) and Transmittance electron microscope (TEM) were employed for characterization and follow up the synthesis process. Application of the newly synthesized magnetic nano composite adsorbent under optimized parameters of contact time (min) and composite dosage (g) reveal high removal capacity values (g/g) evaluated to be 28.32 g/g, 5 min and 0.1 g for used motor oil removal and 41.22 g/g, 10 min and 0.1 g for crude oil. The high removal efficiency exhibited by WSD@Fe3O4NPs/SA was mainly argued to the long hydrocarbon chain of SA moiety and additional ـــ (CH2)3 ـــ groups incorporated 3-ATPS. Moreover, Analysis of the oil adsorption experimental equilibrium data were well fitted with Freundlish model with correlation coefficients r2 = 0.9788 and 0.9896 for used motor oil and crude oil, respectively. The kinetic data were correlated using two kinetic models and the results were in harmony with pseudo-second order.
Collapse
Affiliation(s)
- Ezzat M. Soliman
- Chemistry Department, Faculty of Science, Minia University, Minia, Egypt
| | - Salwa A. Ahmed
- Chemistry Department, Faculty of Science, Minia University, Minia, Egypt
| | - Aliaa A. Fadl
- Chemistry Department, Faculty of Science, Minia University, Minia, Egypt
| |
Collapse
|
7
|
Ouyang W, Chen T, Shi Y, Tong L, Chen Y, Wang W, Yang J, Xue J. Physico-chemical processes. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1350-1377. [PMID: 31529571 DOI: 10.1002/wer.1231] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/05/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
The review scans research articles published in 2018 on physico-chemical processes for water and wastewater treatment. The paper includes eight sections, that is, membrane technology, granular filtration, flotation, adsorption, coagulation/flocculation, capacitive deionization, ion exchange, and oxidation. The membrane technology section further divides into six parts, including microfiltration, ultrafiltration, nanofiltration, reverse osmosis/forward osmosis, and membrane distillation. PRACTITIONER POINTS: Totally 266 articles on water and wastewater treatment have been scanned; The review is sectioned into 8 major parts; Membrane technology has drawn the widest attention from the research community.
Collapse
Affiliation(s)
- Weihang Ouyang
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Tianhao Chen
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Yihao Shi
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Liangyu Tong
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Yangyu Chen
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Weiwen Wang
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Jiajun Yang
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Jinkai Xue
- School of Civil Engineering, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
- Environmental Systems Engineering, University of Regina, Saskatchewan, Canada
| |
Collapse
|