“Integrated water project for building Urban sewage treatment plant effluent Radnevo”

The project “Integrated water project for building Urban sewage treatment plant effluent Radnevo” provides construction of a new wastewater treatment plan as the existing isn’t able to perform the growing requirements to parameters of treatment water and mainly to remove the nutrients: nitrogen and phosphorus. The technology for biological elimination of nitrogen compounds includes emergency bioreactor and anoxic bioreactor. For nitrification can be used the classical highly loaded biofilters but available ones in current sewage treatment plant effluent. Radnevo do not have the requisite capacity. It is obsolete, and its reconstruction and modernization is very difficult and not appropriate. During its reconstruction the wastewater will have to pour for the time of its implementation straight in the receiver without purification. The new sewage treatment plant effluent is the powerful anoxic – aerobic treatment system of wastewater and maintenance of an optimal concentration the amount of activated sludge in the working reactors just like desinfection of treated water with UV. The same is designed as mechanical – biological with technology of continuous aeration with nitrification and denitrification. This technology ensure the necessary effectiveness for reduction of organic pollution and provides increased removal of nitrogen pollution. The requirement for increased phosphorus removal is decided to simultaneous chemical treatment in the activation tank with the help of solution of iron salt – iron trichloride. To assure the work flours the treatment plant is completed in a modular scheme which allows the parallel operation or temporarily turns off one of the modules of biological treatment while reducing the load on treatment equipments. The measurement of incoming water amounts is going through ultrasound device with analog display which account the current aggregated amounts and will be installed of the pipeline after the entry shaft.

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