CLEANING OF WASTEWATER GALVANIC PRODUCTION WITH COMPLEX COAGULANTS
The largest contribution to the processes of entry of heavy metals into the hydrosphere is made by the wastewater of electroplating. As a result of experiments in the processes of purification of wastewater of electroplating production, samples of complex coagulants obtained using modernized technology for processing titanium-containing (ilmenite) raw materials were tested. The solutions obtained in the process of sulfuric acid opening containing sulfates of iron and titanium were corrected by the ratio of components. The obtained samples of complex coagulants showed high purification efficiency of model and real water of electroplating production. It has been established that the introduction of titanium compounds into the coagulants makes it possible to increase the filtration rate of the precipitates obtained by 25-40%.