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UDC 628.311

Rublevskaya O. N., Leonov L. V., Mishukov B. G., Vasil’eva E. E., Solov’eva E. A.

Evaluating the flow rate and composition of wastewater in St. Petersburg


The wastewater disposal system of St. Petersburg and its suburbs is specified by receiving and handling large amounts of surface run-off (both stormwater and melted snow) as well as infiltration flows that result from the high ground water level. Regulating the incoming surface run-off is very expensive, whereas investments into the wastewater treatment technologies are used more efficiently. Monitoring the quality of effluent discharged into the surface water bodies is carried out in compliance with the recommendations of Helsinki Commission on Baltic Marine Environment Protection. Basing on the results of three years operating St. Petersburg advanced wastewater treatment plants graph (probability density of the measured parameter values) of the flow rate and composition of the incoming wastewater and treated effluents were developed. Separate assessment of the measurement results in dry and rainy weather was suggested. The necessity of limiting the capacity of the treatment facilities and setting the maximum permissible inflow at the wastewater treatment plants is shown; the excess flow shall be bypassed and treated according to the emergency flood protection plans.

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  1. Karmazinov F. V., et al. [St. Petersburg wastewater removal and treatment]. – St. Petersburg: Novyi Zhurnal, 2002. (In Russian).
  2. Karmazinov F. V., et al. [Water supply and wastewater disposal in St. Petersburg]. – St. Petersburg: Novyi Zhurnal, 2008. (In Russian).

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