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Wastewater treatment solution
Wastewater treatment solution for the “Russian Versailles”
 untreated wastewater from the town of Petrodvorets is one of the major pollution point sources of pollution entering the Baltic sea.
the nutrients, phosphorus and nitrogen are contributing to the destructive impact on the aquatic environment.
Located about 20 km west and 6 km south of St. Petersburg and overlooking the Gulf of Finland, Petrodvorets (often called the “Russian Versailles” or Peterhof) has a unique water supply system.
The town’s hydraulic complex, a historic engineering monument dating back to the 18th century, provides almost 65,000 inhabitants, 150 fountains and 4 cascades with water.
The high pace of development in the Petrodvorets district means constant modernization of the water supply and sewerage systems. This is being carried out by the Southwest Vodokanal Company, a branch of SUI Vodokanal of St. Petersburg.
increasing the daily treatment capacity The Petrodvorets wastewater treatment plants were put into operation in 1976 and nowadays treat all of Petrodvorets’ wastewater and some of the sewage of the nearby town of Lomonosov.
A tentative status was initially: various elements were tested there for subsequent implementation in St. Petersburg’s wastewater treatment plants. Due to the heavy workload of the Petrodvorets wastewater treatment.
plant and the fact that it was wearing out, a reconstruction project was launched by the St. Petersburg Construction Committee at the end of 2006.
The major goal of the project, which is being implemented by ZAO Vodokanalstroy, is to increase the daily treatment capacity to 65,000 m³ during dry weather (and to 72,000 m³ during rain and snowmelt) using modern technologies that remove biogenic elements. The reconstruction of the wastewater treatment plant also promotes compliance with the requirements of the Helsinki Convention on the Protection of the Marine Environment of the Baltic Sea Area: the total phosphorus value will be reduced to < 1.5 mg/l, and the nitrogen value to < 10 mg/l.
 Previous experience
Polyethylene pipe Weholite is durable, corrosion resistant and leak proof, which naturally benefits the customer’s operations.
Reconstruction of the Petrodvorets wastewater treatment facilities is to be completed by the 3rd quarter 2008. It will ultimately improve the environmental situation in the Baltic region and achieve the status of a cost-effective water protection measure.
based on previous experience, Polyethylene pipe was able to offer a reliable and expedient engineering solution
Project Details
• Project : Reconstruction of the Petrodvorets Wastewater Treatment Plant
• Owner : SUI Vodokanal of St. Petersburg
• Application : Water outlet to the Gulf of Finland – Approx. 1,050 m, DN/ID 1,200 mm, SN4, Polyethylene Weholite
• Designer : GUP Lengiproinzhproekt
• General contractor : ZAO Vodokanalstroy
• Sub-contractor : Sprut
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