Reconstruction of Typical Radial Settling Tanks with the Use of a Scraper System Finnchain

Summary

Difficulties of the operation of radial primary and secondary settling tanks with typical equipment for sludge removal (sludge disposal trucks IBR and sludge scrapers IPR) are stated. The scraper system Finnchain (Finland) devoids these shortcomings. A principle of operation of this equipment is described; basic operation data and its distinctions from analogues are presented.

Key words

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UDC 628.334.5.004.69

Pakhomov A. N., Streltsov S. A., Belov N. A. , Mukhin V. A., Kouryatnikov A. A.

Upgrading primary settler

Summary

Upgrading 54 m diameter primary settler at the Kouryanovo wastewater treatment facilities in Moscow with the installation of a newly designed IL-54 sludge scraper is discussed. The specifications and advantages of the new design of the sludge scraper are described. Industrial tests of the sludge scraper complete with a floating covering section on the primary settler at the Novo-Kouryanovo wastewater treatment facilities showed high process efficiency and operating reliability. As part of the integrated program of the Novo-Kouryanovo wastewater treatment facilities upgrade it was decided to equip all the 54 m diameter settlers with IL-54 sludge scrapers and floating coverings.

Key words

sludge scraper , domed covering , treatment facilities , primary settler , scraper system

Reconstruction of Typical Radial Settling Tanks with the Use of a Scraper System Finnchain

Summary

Upgrading primary settler

Summary

Authorization

Magazine VST