Russian and Japanese specialists discussed innovations in the field of water supply and sewerage


Russian-Japanese technical workshop “Exchange of experience in the field of water supply and sewerage” took place today at the territory of the Information Educational Centre of SUE “Vodokanal of St.Petersburg”.

E.I. Tselikov, Deputy Director General of Vodokanal, and Satoshi Fukui, Director General of the Construction Bureau of Osaka City Government, welcomed workshop participants. Welcoming words were followed by reports of Vodokanal specialists and Japanese delegation representatives (it worth noting that Japanese guests presentations were in Russian, and ones of the Vodokanal specialists were in Japanese).

O.N. Rublevskaya, Vodokanal Deputy Director for Development, described Vodokanal activity towards reduction of untreated wastewater discharge (nowadays 98.5% of all St.Petersburg wastewater is treated), improvement of wastewater treatment quality and surface wastewater treatment. Enhanced phosphorus and nitrogen removal technology is implemented at all municipal wastewater treatment plants. This is associated with the obligations incurred by the Russian Federation within the Helsinki Convention for the Protection of the Baltic Sea framework. O.N. Rublevskaya also informed that sewage sludge utilization challenge is completely solved in St.Petersburg (sludge is incinerated at three plants). E.D. Nefedova, Deputy Director for Production, reported regarding the water supply system of St.Petersburg and existing water treatment technologies. A unique integrated system of tap water disinfecting is used in St.Petersburg. It involves the application of chemical (chemicals addition - sodium hypochlorite and ammonium sulphate) and physical (UV water treatment) methods. E.D. Nefedova emphasized that all St.Petersburg drinking water is guaranteed safe and harmless. The company currently is actively engaged in the water supply management system development. In the near future, such system will be operated across the so-called Southern water supply zone.

Toshiharu Sazaki, Chief Secretary, Director for Water Environment, Public Works Bureau, the City of Osaka, at the beginning of his presentation showed pictures of Osaka City taken fifty years ago and today. Photos of the city's past exemplified that the environmental situation was depressing. However, the situation was reversed, and now Osaka impresses with clean water and clean air. The city has accumulated a range of management know-how that could be useful, in particular, for those involved in water supply and sanitation. Masao Ayukawa, General Manager of the design and development department of one of the Japanese companies, outlined the approximate range of issues in which technology transfer cooperation can develop. In water supply those are, for example, improving energy efficiency in water supply system and reducing environmental load, pipelines modernization projects. As for wastewater treatment - rainwater collecting and recycling technologies, sewage sludge processing and efficient use technologies.

Workshop participants noted that the experts meeting was of great practical importance. It is impossible to achieve the objective of quality services provision without the technology development and water supply and sewerage innovations implementation.

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