On the issue of the safety of reagents used for water treatment and purification
There was shown the actuality of the problem of the safety of reagents used for water treatment. There have been analyzed several composite reagents used in Russia in the Practice of Water-Supplying Treatment. In technical specifications for these reagents, there was no information on the origin, composition and properties of modifying additives 'M', the synthetic polyelectrolytes level (%). Up to date, there are no available analytical methods permitting to determine reliably the content of polymers and monomers at the levels actually present in water after application of synthetic polyelectrolytes. It is necessary to strengthen the control over the use of synthetic polyelectrolytes in water-supplying practice.