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Sung Jae Kim

1-1-5 Project Director

Project : Desalination of ultrahigh concentrated brine by nano-electrokinetics
Purpose ■ The objective of this research is to desalt a ultrahigh concentrated brine using a nanoelectrokinetic phenomena and to develop the technology for efficient removal of oil-contaminant from the source waste.
■ Detailed objective is as follows.
- Develop a desalting technology of the ultrahigh concentrated brine (1~2M) at >90% removal efficiency and <10Wh/L power consumption using an ion concentration polarization phenomena.
- Develop a separation technology of the oil-contaminated brine at >90% removal efficiency using an ion concentration polarization phenomena.
- Develop a strategy to enhancing throughput over 100mL/min by the massive parallelization of an unit micro/nanofluidic system
Contents ■ ○ 1st year (‘13.09.~’14.08) develop low cost nanostructure fabrication method and design and analysis of unit desalting system
- Controlling a nanostructure and surface potential to obtain ion concentration polarization at ultrahigh electrolyte concentration
- Develop numerical model to simulate flow field/electric field/concentration field.
- Design and optimization of the micro/nanostructure for >90% desalting efficiency

■ 2nd year (‘14.09.~’15.08) Optimizing a performance and throughtput of the desalter
- Enhancing the power consumption and desalting efficiency
- Removing micro oil-droplets from soruce waster
- Increasing throughput using ultra-thin PDMS device
Expected Contribution ■ This novel nanotechnology can be used for resolving the environmental impact due to the ultrahigh concentrated brine coming with a shale gas extraction so that it can contribute to create new intellectual properties and niche markets.
■ This ion control mechanism can also be applied to high energy efficient membrane system for a novel water purification system or ion/protein preconcentration system
Publication
No Title Year Phase
3 Experimental Verification of Overlimiting Current by Surface Conduction and Electro-osmotic Flow in Microchannels 2015.03. Phase 2
2nd year
2 Sub-10nm Transparent All-Around-Gated Ambipolar Ionic Field Effect Transistor 2015.01. Phase 2
2nd year
1 Overlimiting current through ion concentration polarization layer: hydrodynamic convection effects 2014.03. Phase 2
1st year
1
Patent
No Title Country Date Phase
1 미세 유적 분리 방법 KR 2014-09-12 Phase 2
2nd year
1
Conference
No title Conference Name Date Phase
9 Ambipolar ionic field effect transistor Advances in Microfluidics and Nanofluidics 2014 2014-05-21 Phase 2
1st year
8 Nano-electrokinetical separation of oil and water using ultrasonication and ion concentration polarization Advances in Microfluidics and Nanofluidics 2014 2014-05-21 Phase 2
1st year
7 Electrokinetical Ion Preconcentration by Feed-Batch Multiplexed Droplet Generator KMEMS 2014 2014-04-03 Phase 2
1st year
6 Analysis of Ion Concentration Polarization in Highly Concentrated Electrolyte KMEMS 2014 2014-04-03 Phase 2
1st year
5 The Filtration of Ions in Highly Concentrated Colloidal Suspensions Based on Ion Concentration Polarization KMEMS 2014 2014-04-03 Phase 2
1st year
4 Nano-Electrokinetical Water Purification by Ion Concentration Polarization International Union of Materials Research Society International Conferences in Asia 2013 2013-12-16 Phase 2
1st year
3 Overlimiting Current through Ion Concentration Polarization Layer : Experimental Verifications of the Surface Conduction Mechanism 66th Annual Meeting of Division of Fluid Dynamics, The American Physical Society 2013-11-24 Phase 2
1st year
2 Overlimiting Current through Ion Concentration Polarization Layer : Hydrodynamic Convection Effects 66th Annual Meeting of Division of Fluid Dynamics, The American Physical Society 2013-11-24 Phase 2
1st year
1 Electrokinetically Preconcentrated Sample Encapsulation by Droplet Generator using Ion Concentration Polarization Conference of the Korean Sensor Society 2013 2013-11-12 Phase 2
1st year
1
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