scholarly journals Preparation and application of low-cost ceramic membranes for separation of oil-water emulsion

2021 ◽  
Vol 2070 (1) ◽  
pp. 012076
Author(s):  
Pooja Gopinath ◽  
Murali Pujari ◽  
Tirumala Rao Kotni
Keyword(s):  
Low Cost ◽  
Ceramic Membranes ◽  
Ftir Analysis ◽  
Water Emulsion ◽  
Membrane Performance ◽  
Membrane Characterization ◽  
Dead End ◽  
Oil Water ◽  
The Impact ◽  
Compaction Method

Abstract This work presents the impact of fabricating pressure on the performance of ceramic membranes during the dead-end microfiltration of an oil-water emulsion. The membranes used in this study were fabricated at a pressure of 40 kN and 100 kN using the dry compaction method. The membrane characterization was done using XRD and FTIR analysis. The membrane performance was evaluated by carrying dead-end microfiltration experiments using synthetic oil-water emulsion as a feed at a trans-membrane pressure of 30 psi. The experimental results confirmed that the membrane fabricated at higher fabricating pressure (100 kN) gives better performance in terms of maximum oil rejection of 95.7% with the maximum flux of 2.04x10−3 m3/m2.s.

β-SiAlON ceramic membranes modified with SiO2 nanoparticles with high rejection rate in oil-water emulsion separation

2019 ◽  
Vol 45 (4) ◽  
pp. 4237-4242 ◽  
Author(s):  
Dong-Shuai Zhang ◽  
Hamidreza Abadikhah ◽  
Jun-Wei Wang ◽  
Lu-Yuan Hao ◽  
Xin Xu ◽  
...  
Keyword(s):  
Rejection Rate ◽  
Sio2 Nanoparticles ◽  
Ceramic Membranes ◽  
Water Emulsion ◽  
Sialon Ceramic ◽  
Emulsion Separation ◽  
Oil Water ◽  
High Rejection Rate ◽  
High Rejection

Cross flow microfiltration of oil–water emulsions using kaolin based low cost ceramic membranes

Desalination ◽  
2014 ◽  
Vol 341 ◽  
pp. 61-71 ◽  
Author(s):  
Sriharsha Emani ◽  
Ramgopal Uppaluri ◽  
Mihir Kumar Purkait
Keyword(s):  
Low Cost ◽  
Cross Flow ◽  
Ceramic Membranes ◽  
Oil Water

scholarly journals Development of Polyvinylidene Fluoride Membrane via Assembly of Tannic Acid and Polyvinylpyrrolidone for Filtration of Oil/Water Emulsion

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 976
Author(s):  
Normi Izati Mat Nawi ◽  
Syasya Ong Amat ◽  
Muhammad Roil Bilad ◽  
Nik Abdul Hadi Md Nordin ◽  
Norazanita Shamsuddin ◽  
...  
Keyword(s):  
Tannic Acid ◽  
Membrane Fouling ◽  
Polyvinylidene Fluoride ◽  
Ecological Impact ◽  
Mean Flow ◽  
Water Emulsion ◽  
Emulsion Separation ◽  
Oil Water ◽  
The Impact ◽  
Enhanced Surface

Wastewater containing oil/water emulsion has a serious ecological impact and threatens human health. The impact worsens as its volume increases. Oil/water emulsion needs to be treated before it is discharged or reused again for processing. A membrane-based process is considered attractive in effectively treating oil/water emulsion, but progress has been dampened by the membrane fouling issue. The objective of this study is to develop polyvinylidene fluoride (PVDF) membranes customized for oil/water emulsion separation by incorporating assembly of tannic acid (TA) and polyvinylpyrrolidone (PVP) in the polymer matrix. The results show that the assembly of TA/PVP complexation was achieved as observed from the change in colour during the phase inversion and as also proven from the characterization analyses. Incorporation of the TA/PVP assembly leads to enhanced surface hydrophilicity by lowering the contact angle from 82° to 47°. In situ assembly of the TA/PVP complex also leads to enhanced clean water permeability by a factor of four as a result of enhanced mean flow pore size from 0.2 to 0.9 µm. Owing to enhanced surface chemistry and structural advantages, the optimum hydrophilic PVDF/TA/PVP membrane poses permeability of 540.18 L/(m2 h bar) for oil/water emulsion filtration, three times higher than the pristine PVDF membrane used as the reference.

scholarly journals Mussel-Inspired Fabrication of PDA@PAN Electrospun Nanofibrous Membrane for Oil-in-Water Emulsion Separation

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3434
Author(s):  
Haodong Zhao ◽  
Yali He ◽  
Zhihua Wang ◽  
Yanbao Zhao ◽  
Lei Sun
Keyword(s):  
Separation Efficiency ◽  
Low Cost ◽  
Nanofibrous Membrane ◽  
Water Separation ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

Emulsified oily wastewater threatens human health seriously, and traditional technologies are unable to separate emulsion containing small sized oil droplets. Currently, oil–water emulsions are usually separated by special wettability membranes, and researchers are devoted to developing membranes with excellent antifouling performance and high permeability. Herein, a novel, simple and low-cost method has been proposed for the separation of emulsion containing surfactants. Polyacrylonitrile (PAN) nanofibers were prepared via electrospinning and then coated by polydopamine (PDA) by using self-polymerization reactions in aqueous solutions. The morphology, structure and oil-in-water emulsion separation properties of the as-prepared PDA@PAN nanofibrous membrane were tested. The results show that PDA@PAN nanofibrous membrane has superhydrophilicity and almost no adhesion to crude oil in water, which exhibits excellent oil–water separation ability. The permeability and separation efficiency of n-hexane/water emulsion are up to 1570 Lm−2 h−1 bar−1 and 96.1%, respectively. Furthermore, after 10 cycles of separation, the permeability and separation efficiency values do not decrease significantly, indicating its good recycling performance. This research develops a new method for preparing oil–water separation membrane, which can be used for efficient oil-in-water emulsion separation.

scholarly journals Effect of various oil/water emulsion concentration towards PVDF/HMO mixed matrix membrane performance

2020 ◽  
Vol 991 ◽  
pp. 012100
Author(s):  
N H Ismail ◽  
W N Wan Salleh ◽  
S Z N Ahmad ◽  
N A Mohd Razali ◽  
N Rosman ◽  
...  
Keyword(s):  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Water Emulsion ◽  
Membrane Performance ◽  
Oil Water ◽  
Emulsion Concentration

Japan's Aqua Renaissance '90 Project

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1573-1582 ◽  
Author(s):  
Shoji Kimura
Keyword(s):  
Waste Water ◽  
Water Reuse ◽  
Membrane Separation ◽  
Low Cost ◽  
Ceramic Membranes ◽  
Test Plant ◽  
Power Requirement ◽  
Membrane Performance ◽  
Treatment Processes ◽  
Cost Treatment

Aqua Renaissance' 90 is a six year R & D project for water reuse and energy recovery supported by the Japanese Ministry of International Trade and Industry. The objective is to develop low cost treatment processes utilizing bioreactors coupled with membrane separation units to produce reusable water from industrial waste water and sewage. Polymeric and ceramic membranes in capillary, hollow fiber, tubular and plate and frame modules have been tested in conjunction with bioreactors on a number of actual waste water and sewage streams. This paper will focus on membrane performance and power consumption. Recent results from test plant operation indicate that treatment of concentrated waste water by membrane separation units uses less than a third of the conventional power requirement.

scholarly journals Effect of Membrane Materials and Operational Parameters on Performance and Energy Consumption of Oil/Water Emulsion Filtration

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 370
Author(s):  
Nafiu Umar Barambu ◽  
Muhammad Roil Bilad ◽  
Nurul Huda ◽  
Nik Abdul Hadi Md Nordin ◽  
Mohamad Azmi Bustam ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Membrane Fouling ◽  
Membrane Material ◽  
Operational Parameters ◽  
Water Emulsion ◽  
Low Energy Consumption ◽  
Oil Concentration ◽  
Oil Water ◽  
The Impact ◽  
Emulsion Filtration

Membrane technology is one of reliable options for treatment of oil/water emulsion. It is highly attractive because of its effectiveness in separating fine oil droplets of <2 µm sizes, which is highly challenging for other processes. However, the progress for its widespread implementations is still highly restricted by membrane fouling. Most of the earlier studies have demonstrated the promise of achieving more sustained filtration via membrane material developments. This study addresses issues beyond membrane development by assessing the impact of membrane material (blend of polysulfone, PSF and polyethylene glycol, PEG), operational pressure, and crude oil concentration on the filtration performance of oil/water emulsion. The filtration data were then used to project the pumping energy for a full-scale system. Results show that fouling resistant membrane offered high oil/water emulsion permeability, which translated into a low energy consumption. The oil/water emulsion permeability was improved by three-fold from 45 ± 0 to 139 ± 1 L/(m2 h bar) for PSF/PEG-0 membrane in comparison to the most optimum one of PSF/PEG-60. It corresponded to an energy saving of up to ~66%. The pumping energy could further be reduced from 27.0 to 7.6 Wh/m3 by operation under ultra-low pressure from 0.2 to 0.05 bar. Sustainable permeability could be achieved when treating 1000 ppm oil/water emulsion, but severe membrane fouling was observed when treating emulsion containing crude oils of >3000 ppm to a point of no flux.

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