Saturday, November 5, 2016 front page Company Domestic water Sewage Projects Current affairs Contact information Links You are here: Home Projects Central cleaning plant Kalajoki Valley Central Treatment Plant Project Last updated on 04.04.2016 | | In 2008, Vesikolmio Oy acquired the wastewater treatment plants in the Kalajoki Valley. The purpose of the company is to centralize the wastewater treatment of Jokilaakso in Kalajoki. In this case, the treated wastewater is discharged from the Central Treatment Plant directly into the sea north of Kalajoki. The wastewater discharge has been done with a pipe at a distance of about 1.5 km from the shore to a water depth of about 5 m. The purpose of the project is to improve the water quality of the Kalajoki River. In addition to wastewater from agglomerations, wastewater from sparsely populated riverside can also be taken into the transfer sewer leaving the Haapajärvi treatment plant. Closed wastewater equalization basins will be built in connection with the existing treatment plants, with the exception of the Kalajoki treatment plant. They compensate for intra-day fluctuations in wastewater volumes and can also act as back-up basins in the event of a disruption. The current treatment plants were built in the 1970s. When their equipment is 30 years old, they would need a thorough overhaul. In the future, wastewater treatment requirements will be tightened. The new Central Treatment Plant will find it easier to meet these tightening treatment requirements than the old treatment plants. To date, a transfer sewer between Sievi and Ylivieska and a Sievi equalization basin, a transfer sewer between Alavieska and Kalajoki, an Alavieska equalization basin and a transfer sewer between Haapajärvi and Nivala have been built. In 2013, the Haapajärvi treatment plant was converted into an equalization basin. In 2015, the transfer sewer from the current treatment plant in Kalajoki to the planned Central Treatment Plant and the discharge pipe leading to the sea were completed. Construction of the transfer sewer from Ylivieska to the Central Treatment Plant in Kalajoki has started at the end of 2015. The central treatment plant will be built on Kalajoki along Road 8. The treatment plant will become a modern biochemical plant, utilizing the experience gained from wastewater treatment plants over 40-50 years. Vesikolmio Oy has an environmental permit for the discharge of the Central Treatment Plant and the associated composting field, as well as treated wastewater, into the Gulf of Bothnia. The treatment plant is scheduled for completion in 2017. In the first phase, it will treat wastewater from the cities of Kalajoki and Ylivieska and the municipalities of Alavieska and Sievi, on average 6,600 m 3 / d. In the second phase in the 2020s, wastewater from the cities of Haapajärvi and Nivala will also be discharged to the treatment plant. To date, 75 km of sewers have been built. There are still 77 km of transmission sewers under construction, with a total construction cost of about 20 M €. The combined costs of the treatment plant and the unloading sewer are approximately 20 M €. State involvement in the construction of sewers has been a very significant issue. It is important for the progress of the project that the state continues to be involved in the implementation of transmission sewers. For more information, please contact: Risto Bergbacka, President and CEO, tel. +358 44 0890 777 Read the brochure about the project Vesikolmio Oy Vesitie 7, 85500 Nivala | Tel. (08) 440 266 Fax (08) 440 252 Emergency telephone 2 4 h / day 0 4 4 0 8 9 0 2 1 9