Development and Evaluation of Nano Electret Filters for Household Water Treatment

Article Preview

Abstract:

Korea is expected to one of countries with water shortages, and thus must secure high-quality water resources and strictly maintain them. However, water is frequently polluted and there is still a lack of water treatment technologies and facilities to provide safe water. To remove pollutants, membrane-based methods are being widely used for water treatment. It needs high pressure and energy to capture the pollutants by pore size. In this study, electrostatic force is used to increase the efficiency of filtration and decrease pressure loss. By electro spinning, nanoelectret filter is made with 100 nm in diameter and positive charge potential. Surface potential is measured by electrostatic voltmeter system with nanoelectret filter by three conditions of applied voltage. For the filtration performance, filtration efficiency is measured by filter test system with 0.5 and 1.0 PSL. Also pressure loss of nanoelectret filter is measured by comparing PC membrane.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

767-772

Citation:

Online since:

January 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Lee, J. K., An Experimental study of particulate retention by microporous membranes in liquid filtration, KSME Journal, Vol. 8, (1994) 69-77.

DOI: 10.1007/bf02953245

Google Scholar

[2] M. Echegaray, Membrane Filtration and Water Desalination, Wexford, (2008).

Google Scholar

[3] ASTM F316-03, Standard Test Methods for Pore Size Characteristics of Membrane Filters by Bubble Point and Mean Flow Pore Test, American Society for Testing and Materials, (2011).

DOI: 10.1520/f0316-03

Google Scholar

[4] ANSI/ASHRAE 52. 2, Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size, American Society of Heating, Refrigerating and Air-conditioning Engineering, (1999).

Google Scholar