FORMATION POTENTIAL SCREENING TESTS FOR INDUSTRIAL CHEMICALS

Abstract

 Huge amount of the chemicals are used in industry. Although the chemicals are statutory restricted, formation and/or transformation of them to hazardous chemicals in urban water cycling have not been taken into consideration. This research was aimed at establishing the formation potential screening tests of eight N-nitrosamines, four aldehydes and four trihalomethanes from industrial chemicals during oxidation treatments, i.e. ozonation, chloramination or chlorination. Evaluation of the results was also discussed to quantify the molar yield of the formation. Among the chemicals registered in PRTR, six chemicals were selected as the potential precursors according to the high potential of exposure in wastewater (calculated concentration in wastewater). The chemicals were subjected to the tests and seventeen data sets of the formation were obtained quantitatively.