Szukana fraza: [Abstract = "The dissolved forms of organic substances are the most problematic with regard to water treatment because major concern is the formation of disinfection by products resulting from reactions between dissolved organic matter fractions and disinfectants. The aim of this study was to evaluate the effectiveness of precursors of disinfection by\-products removal using highly alkaline polyaluminium chlorides that had different alkalinity and iron content."]

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