OPTIMIZATION OF TREATMENT FACILITIES OIL-CONTAINING WASTES OF ENTERPRISES ENGINEERING PROFILE
Waste waters generated at mechanical engineering enterprises are considered. The most common of them, formed from washing products and containing mechanical impurities and oils (petroleum products), are characterized. Russian experience of treating such effluents at mechanical engineering enterprises is presented, taking into account the best recommended available technologies. The analysis of the operation of the existing treatment facilities of the enterprise from oil products was carried out. The main problems were identified: an increase in the concentration of suspended solids after flotation, volley discharges of contaminants from filters, which may be due to failure to maintain the required filtration rate. As possible ways to improve the work of water treatment facilities, it is proposed to replace mechanical filters with sorption ones, using the existing equipment by replacing the load from expanded clay to activated carbons or other sorbents. It can help to reduce the number of filters in operation, leaving one or two sequentially operating devices in operation: one of the filters would be on regeneration and one - in reserve.