Full Description

The effects of polydiallyldimethylammonium chloride (polyDADMAC) dose, epichlorohydrindimethylamine(Epi-DMA) dose, and chlorine residual on NDMA formation in thecoagulation/flocculation/sedimentation drinking water treatment process were studied usingsingle-factor experiments. Influent water to a water treatment plant was used to conduct theexperiments. The goal was to determine whether the relationship between the tested factors andNDMA yields followed linear or more complex relationships. It was found that an increase inpolymer dose resulted in a linear increase in NDMA formation. The addition of chlorine dosesexceeding the breakpoint resulted in a reduction in NDMA formation that followed empirically afirst-order reaction. Includes 25 references, tables, figures.

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Edition: Vol. - No. Published: 06/15/2003 Number of Pages: 14File Size: 1 file , 280 KB