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Title: Removal of inorganic As [sup] 5+ from a small drinking water system Simonič, Marjana (Author) http://www.shd.org.rs/JSCS/Vol74/No1/09_4044_3811.pdf English Unknown () 1.01 - Original Scientific Article FKKT - Faculty of Chemistry and Chemical Engineering The drinking water from a small drinking water system contained arsenic in a concentration of about 50 ▫$mu$▫g/L. Chemical analyses showed that the pentavalent form of arsenic was present. Since the MCL value is 10 ▫$mu$▫g/L, it was necessary to implement a technological treatment to make the water suitable for drinking. In order to do so, two technologies were suggested: activated alumina and ▫$alpha$▫-FeOOH (TehnoArz, TA) adsorption media. Experiments using both adsorption media were performed on a laboratory scale. It was possible to remove arsenic to below 1 ▫$mu$▫g/L. The maximal adsorption capacity was found to be 12.7 mg of As5+ per gram of ▫$alpha$▫-FeOOH. Moreover, all the important physico- chemical parameters of the water remained practically unchanged after the treatment. Only a slight release of iron from the media was observed. The Fe-As bond was studied by means of chemical analysis and X-ray powder diffraction. Finally, in addition to showing the capability of arsenic removalby ▫$alpha$▫-FeOOH, a comprehensive optimization of the technological parameters of the selected technology is provided. drinking water, arsenic, activated alumina, goethite, adsorption 2009 628.1.033:546.73-188+541.183 0352-5139 12950550 URN:SI:UM:DK:1K49UI1X 1308 31 Misc.

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## Record is a part of a journal

Title: Journal of the Serbian Chemical Society J. Serb. Chem. Soc. Serbian Chemical Society 0352-5139 64535

## Secondary language

Language: Serbian Removal of inorganic As5+ from a small drinking water system