Myanmar Health Sciences Research Journal
Volume 25, Number 1
TITLE: Effect of Potash Alum on arsenic content in drinking water sources in Mingyan Township.
AUTHOR: Nilar Win; Htun Naing Oo; Wai-Mie- Aung; May Theingi Minn; Khin Win Swe
SOURCE: Myanmar Health Sciences Research Journal(Golden Jubilee Publication). 2013; 25(1): 56-61
ABSTRACT: This study was done to develop an innovative method for reducing arsenic content of drinking water sources. Total 63 drinking water sources in 5 villages and a ward in Myingyan Township were primarily tested by using arsenator and arsenic test kit. All water samples were transported to Biochemistry Research Laboratory of Department of Medical Research (Central Myanmar) where arsenic levels were confirmed by atomic absorption spectrometer. Ten drinking water sources out of 63 (15.87%) exceeded Myanmar arsenic standard of 0.05 mg/l while 44 water samples (69.84%) exceeded WHO guideline value of 0.01 mg/l. All drinking water sources were found to be shallow tube wells. Local people did not use any water treatment method apart from overnight keeping before consumption. Commercial-grade potash alum, 450 mg/l, was used to remove arsenic from drinking water sources in the study. After adding potash alum, mean water arsenic levels fell from 0.0242Ã‚Â±0.003 mg/l to 0.0154Ã‚Â±0.002 mg/l at 1 hour and 0.0087Ã‚Â±0.001 mg/l at 2 hours and the arsenic contents were statistically significant. Water arsenic content cannot be removed by filtration using cotton filter. Temperature, pH, oxidative reductive potential (ORP), total dissolved solids (TDS), and aluminium levels of the water samples were monitored throughout the study. Aluminium levels in the water samples were within WHO recommended level. Potash alum is cheap, safe, effective, and suitable for both rural and urban community.
SUBJECT HEADINGS: Potash Alum.Arsenic.Drinking Water