EFFECTIVENESS OF DOMESTIC WATER FILTERS IN REMOVING SUSPENDED SOLIDS, RESIDUAL CHLORINE AND COLIFORM BACTERIA

  • Chong Chee Kheong Hospital Cameron Highlands, 39000 Tanah Rata, Pahang.
  • G. Vijayakumar Hospital Cameron Highlands, 39000 Tanah Rata, Pahang.
  • Teoh Leong Hooi Hospital Cameron Highlands, 39000 Tanah Rata, Pahang.
  • Siti Zubaidah AR Hospital Cameron Highlands, 39000 Tanah Rata, Pahang.
  • Moliamed Sapian M Hospital Cameron Highlands, 39000 Tanah Rata, Pahang.
  • Abdul Rahim A Hospital Cameron Highlands, 39000 Tanah Rata, Pahang.
Keywords: Water filters, suspended solids, residual chlorine, coliform bacteria

Abstract

Water filters are being increasingly promoted and used in the home. There are many types of commercial water filters available for domestic use but almost all of them employ a physical filter media and an activated substance. The study showed that water filters effectively removed suspended solids and residual chlorine. However, as far as removing coliform bacteria is concemed, in 22 .5% of the cases, bacteria were in fact introduced into the water. And in 20% of the cases, the amount of bacteria introduced was "too numerous to count (TNTC)" Furthermore, water filters can lose their ability to filter bacteria without losing their ability to filter suspended solids and residual chlorine. This highlights the necessity of some authorized body looking into the claims made by these water filter manufacturers and impose certain standards to ensure that at the very least, the water quality of the filtered water is not worse than the unfiltered water.

References

1. Annual Report Pejabat Kesihatan Cameron Highlands 2001.

2. Rancangan Tempatan Cameron Highlands 1998-2010

3. National Standard for Drinking Water Quality - Ministry of Health Malaysia, Dec 2000.

4. Daschner FO, Ruden 1-l, Sinon R, Clotten J. Microbiological contamination of drinking water in a commercial household water filter system. Eur J Clin Microbial Infect Dis 1996; 15(3 ): 233-7.

5. Studies on microbial quality of filtered water inhouseholds of a university community in Nigeria. J Hygiene 1986; 96(2): 239-48.
Published
2003-09-01
How to Cite
Chong Chee Kheong, G. Vijayakumar, Teoh Leong Hooi, Siti Zubaidah AR, Moliamed Sapian M, & Abdul Rahim A. (2003). EFFECTIVENESS OF DOMESTIC WATER FILTERS IN REMOVING SUSPENDED SOLIDS, RESIDUAL CHLORINE AND COLIFORM BACTERIA . Malaysian Journal of Public Health Medicine, 3(2), 38-40. Retrieved from https://mjphm.org/index.php/mjphm/article/view/1306
Section
Articles