The comprehensive analysis results of sediment, containing heavy metal ions using standardless methods of X-ray phase (XRD) and X-ray spectral (XRD) analyzes to determine the elemental and phase composition of sediment samples, obtained during reagent treatment of industrial wastewater are shown. The analytical results of the processes that take place in these precipitation under the influence of certain temperature regimes are presented, which contributes to a change in the physicochemical properties of these precipitates and allows the most accurate qualitative and quantitative analysis of these precipitation. The obtained results are further used to determine the hazard class of precipitation and to develop a modern scheme for processing and disposal of precipitation, which makes it possible to reduce the technogenic load on the environment.

Рассмотрен один из способов повышения эффективности обезвоживания осадков городских сточных вод-механическое обезвоживание с применением флокулянтов. Работа посвящена подбору наиболее эффективно действующего флокулянта и проводилась на натурных осадках правобережных очистных сооружений г. Красноярска и канализационных очистных сооружений п. Емельяново. Эксперимент показал, что наибольшей эффективностью действия обладают флокулянты Praestol 851BC и Zetag 7485 в дозе 3 кг/т сухого вещества осадка. Urban wastewater sludge is highly humid, large and poorly dehydrated. Dehydration of sludge in natural conditions has a number of shortcomings: low effi ciency, sludge areas require huge land areas, worsen the ecological situation, pollute groundwater, soil, etc. One way to eliminate the problem and improve the effi ciency of sludge dewatering in urban wastewater is to switch to mechanical dehydration using fl occulants. The work is devoted to the selection of the most eff ective fl occulant and was carried out on the natural sediments of the right-bank treatment facilities in Krasnoyarsk and the sewage treatment plants in the sett lement of Emelyanovo. The experiment showed that fl occulants Praestol 851BC and Zetag 7485 at a dose of 3 kg / t dry matt er of the precipitate have the greatest eff ectiveness.