Afterpurification of the water polluted by organic substances by najas microdon

Techniques of photometric definition of phenol, o-cresol, m-aminophenol, pyrocatechin, hydroquinone, re-sorcin, aniline, toluidine, p-nitroaniline, sulphanilic acids, p-phenylenediamine, benzidine, sodium lauryl-sulphate in modelling samples of sewage are resulted. The opportunity and expediency of use of Najas mi-crodon for carrying out of effluent polishing is shown