Mechanical Treatment of Wastewater at Sewage Pumping Stations

Summary

The most widespread methods of protection of pumping units against the ingress of large size garbage delivered to sewage pumping station with a wastewater flow are considered. An example of operation of the mechanized rake type screens RKE EKOTON® at the main sewage pumping station of the city of Seversk is made. The screens ensure the reliable removal of large size garbage from wastewater, owing to it the interrepair time of pumping unit operation increases. If before the reconstruction of the technological section 15–20 kg of garbage were removed from wastewater, after the adoption of new equipment this figure increased up to 50 kg/day. To compensate the costs of garbage evacuation the waste collected on screens is transported to the hydro-press for wringing that makes it possible to reduce it volume.

Key words

sewerage pumping station , mechanized rake type screen , filter fabric , discharge capacity

Enhancement of Treatment Efficiency of Wastewater of JSC Kaluzhskaya Poultry Factory

Summary

Features of the treatment of wastewater of meat-processing industry enterprises are described using the example of JSC Kaluzhskaya Poultry Factory purifying the mix of industrial wastewater of the enterprise and household sewage of the Lev Tolstoy village. An optimal flow chart with adoption of local sewage treatment facilities after the poultry factory’s slaughter floor making it possible to enhance the efficiency of treatment is offered and substantiated. A brief description of the flow chart offered is given.

Key words

treatment facilities , utilization , reagent , flotation , high concentrated wastewater , flotation slime , dehydrator

**Modernization and Reconstruction of Sewage Treatment Facilities of the Municipal Unitary Enterprise Vodokanal of the City-Resort of Anapa**

Summary

Features of the wastewater treatment in resort towns are described. The ways of enhancement of operation efficiency of sewage treatment facilities of the MUE Vodokanal of the city-resort of Anapa are considered. A brief characteristic of two variants of modernization of treatment facilities are presented. The first variant stipulating the partial replacement of equipment makes it possible to reduce expenditure and enhance efficiency of wastewater treatment at the most unsatisfactory operating parts of the flow chart. The second variant demands significant capital investments, changes in the flow chart and replacement of equipment, but at the same time economic efficiency and the required quality of wastewater treatment according to all the indicators are achieved.

Key words

disinfection , treatment facilities , biological treatment , sewerage , nitri-denitrification , flow chart , aftertreatment