Pump units from Belgorod Hydromechanical Plant have found widespread application in the field of environmental protection and are used for efficient treatment of industrial and municipal wastewater. The design features of the screw equipment make it possible to separate up to 95% of insoluble impurities from wastewater.
Areas of application
- wastewater treatment at food industry enterprises;
- industrial effluents from enterprises in various industries;
- processing of liquid oil sludge at oil refineries;
- sewage pumping stations;
- pumping of sapropel;
- mobile treatment units;
- thermal waste utilization.
Wastewater treatment is one of the key issues for any manufacturing enterprise. This is due to the tightening of environmental legislation and increasing fines for discharges of untreated effluents.
To address these tasks, industrial treatment facilities are used, incorporating single-screw pump units of the SP-H (horizontal) and SP-V (vertical) series. The treatment complex includes four main stages, each of which employs BGMZ equipment.
Stages of wastewater treatment
Mechanical stage
The medium prepared for treatment is fed by a sludge or sapropel pump to screens, grit chambers, and septic tanks. The maximum gap width of the filtering devices typically does not exceed 16 mm. SP series screw pumps are capable of pumping liquid with soft inclusions up to 74 mm and solid fractions up to 50 mm, which guarantees uninterrupted supply even with large contaminants.
Biological stage
Using SP-H or SP-V pumps, the medium enters primary settling tanks, aeration tanks, or methane tanks, where mineralization of wastewater and removal of organic nitrogen and phosphorus take place. The primary settling tanks are followed by a line of radial settling tanks, where screw pumps are used for pumping activated sludge and sediment.
Physicochemical stage
At this stage, mechanical dewatering of the sludge is carried out using flocculants, coagulants, and other reagents. For dosing and feeding these substances, chemical pumps made of stainless steel with stator elastomers of NBR (nitrile), EPDM, or FKM (Viton) are used — depending on the aggressiveness of the medium.
Wastewater disinfection
The final stage is disinfection of the treated liquid with a chlorine or hypochlorite solution. SP series screw pumps in a chemical version effectively handle this task.
Non-standard solutions
Belgorod Hydromechanical Plant also develops pumps for solving non-standard tasks. Horizontal screw pumps of special SP-H series are included in mobile treatment units and are used in thermal waste utilization.
Advantages of BGMZ pumps in the environmental sector
- capability of integration into mobile units;
- high treatment efficiency — up to 95% of insoluble impurities;
- capability to pump media with large inclusions (up to 74 mm);
- resistance to aggressive media and chemical reagents;
- variety of materials of construction for specific tasks;
- reliability and durability in round-the-clock operation.