Removal of Microorganisms in Drinking Water using Pulsed High Voltage
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2013.45.1.1Abstract
A pulsed high voltage was used to remove microorganisms in drinking water. The effects of the pulsed high voltage on pH, conductivity, temperature and oxidation reduction potential (ORP) of the drinking water were investigated. The observed results show that the removal efficiency with respect to fecal coliforms and total coliforms increased with the increase of the pulsed high voltage. The removal efficiency for microorganisms such as fecal coliforms and total coliforms was in the range 25-100% and 44-100%, respectively, after the water was exposed to a pulsed high voltage of 5-10 kV for 60 minutes. An increase of the pulsed high voltage caused a decrease in the conductivity and ORP with operational time.Downloads
References
Desmiarti, R., Ellyta, S., Fadilla, H. & Laila, F., Ground Water and Surface Water Quality in Campus II Bung Hatta University Padang, Proceeding KonNas PBKL-2010, ISSN: 2087-6343, pp. 50-55, Padang 4-5 November 2010.
Devi, R., Alemayehu, E., Singh, V., Kumar, A. & Mengistie, E., Removal of Fluoride, Arsenic and Coliform Bacteria by Modified Homemade Filter Media from Drinking Water, Bioresource Technology, 99, pp. 2269-2274, 2008.
Aronino, R., Dlugy, C., Arkhangelsky, E., Shandalov, S., Oron, G., Brenner, A. & Gitis, V., Removal of Viruses from Surface Water and Secondary Effluents by Sand Filtration, Water Research, 43, pp. 87-96, 2009.
Chiemchaisri, W., Dumrongsukit, C., Threedeach, S., Ngo, H.H. & Vigneswaran, S., Removal of Water-Borne Microorganisms in Floating Media Filter-Microfiltration System for Water Treatment, Bioresource Technology, 102, pp. 3407-3416, 2011.
Lukes, P., Clupek, M., Sunka, P., Peterka, F., Sano, T., Negishi, N., Matsuzawa, S. & Takeuchi, K., Degradation of Phenol by Underwater Pulsed Corona Discharge in Combination with TiO2 photocatalysis, Res ChemIntermed, 31, pp. 285-294, 2005.
Krause, H., Schweiger, B., Schuhmacher, J., Scholl, S. & Steinfeld, U., Degradation of the Endocrine Disrupting Chemicals (EDCs) Carbamazepine, Clofibric Acid, and Iopromide by Corona Discharge Over Water, Chemosphere, 75, pp. 163-168, 2009.
Gerrity, D., Stanford, B.D., Trenholm, R.A. & Snyder,
S.A., An Evaluation of A Pilot-Scale Non Thermal Plasma Advanced Oxidation Process For Trace Organic Compound Degradation, Water Research, 44, pp. 493-504, 2010.
Clements, J.S., Sato, M. & Davis, R.H., Preliminary Investigation of Prebreakdown and Chemical Reaction Using a Pulsed High Voltage on Industrial Application, 1A-23(2), 1987.
Sato, M., Soutome, T., Mii, S., Ohshima, T. & Yamada, Y., Decomposition of Phenol in Water Using Water Surface Plasma In Wetted-Wall Reactor, International Journal of Plasma Environmental Science & Technology, 1, pp. 71-75, 2007.
Sugiarto, A.T., Electrical Discharge (Plasma) dalam Air, Widya Riset, 2003.
Li, J., Sato, M. & Ohshima, T., Degradation of Phenol in Water Using A Gas-Liquid Phase Pulsed Discharge Plasma Reactor, Thin Solid Film, 515, pp. 4283-4288, 2007.