In the northern capital of the complex started to remove phosphorus in wastewater


 Photo source:mr7.ru

The event was attended by the President of Finland, Tarja Halonen, the vice-governor of St. Petersburg Mikhail Oseevsky and Alexei Sergeev, the chairman of the Legislative Assembly Vadim Tulips, head RPN Vladimir Kirillov, Deputy Minister of Regional Development Anatoly Popov.

The "Clean Baltic", launched in 2005, aims to wastewater treatment Petersburg of phosphorus. Yesterday, a closing event of the project — run by Northern WWTP permanent installation of automated chemical dosing for phosphorus removal.

As explained MR7 the press service of "Vodokanal", from this point on the phosphorus content in the total wastewater discharge of the city will be less than 0.5 mg / l. It phosphorus promotes the rapid growth of blue-green algae. "Flowering" of the water makes the Baltic Sea unfit for swimming and recreation, resulting in the deaths of many sea creatures and threatens the future of the unique ecosystem of the Baltic Sea.


 Photo source:mr7.ru


Helsinki Convention on the Protection of the Marine Environment of the Baltic Sea, which was signed by Russia, was adopted in the 90s of the 20th century. According to the recommendations of the Helsinki Commission, the phosphorus content should not exceed more than 0.5 mg / l. This is twice harder than the norm of the European Union, which is the phosphorus of 1 mg / l.

According to the "Water canal", today in St. Petersburg every day from the wastewater is removed about 10 tons of phosphorus. Over the past five years, an annual discharge of phosphorus in the Gulf of St. Petersburg decreased by more than 1,000 tons. International experts estimate that as a huge contribution to improving the state of the Baltic Sea.

Finnish ecologists last summer noted that in the eastern part of the Gulf of Finland was much less than the blue-green algae than in the past — and this result is they are directly linked to improving the quality of wastewater treatment in St. Petersburg. A Finnish President Tarja Halonen last fall during a meeting with Russian President Dmitry Medvedev called the results "world-class achievement."


 Photo source:mr7.ru


 Photo source:mr7.ru


 Photo source:mr7.ru


 Photo source:mr7.ru


 Photo source:mr7.ru

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