HUITTISTEN PUHDISTAMO OY front page Company frequently asked Contact information frequently asked Why has a wastewater cooperation project been started? Wastewater treatment is constantly under increasing environmental pressure. More efficient cleaning results are required from treatment plants. Extensive refinery renovations were coming to the area, as the operation of the treatment plants built in the 1970s and 1980s had to be brought into line with modern requirements. After many studies, centralized wastewater treatment was found to have many advantages. In addition to more efficient and environmentally friendly wastewater management, a parallel sewer to be built in connection with water supply lines would secure water supply in sparsely populated areas. When will the project be implemented? Implementation planning for the Huittinen central treatment plant has begun in March 2013. The contract documents will be completed by the end of 2014. Construction work on the treatment plant will begin at the beginning of 2014 and the entire project will be completed by the end of 2015. The transmission sewer lines will be built in stages by 2015. Punkalaidun's Huittinen water supply line will be completed in autumn 2013. Will the old Pappilanniemi treatment plant be demolished? Some of the old buildings are being demolished. A new building will be built on the site, where the main activity will focus. Some of the functions will be renovated. The wastewater treatment process is maintained throughout the renovation. How much does the project cost and who pays for it? The total cost estimate of the project is about 30 million, of which 14 million are sewers. As a result of the wastewater cooperation, a limited liability company called Huittisten Puhdistamo Oy has been established, of which Huittinen owns 48%, Sastamala 47% and Punkalaidun 5%. The transmission sewer line between Punkalaitumen and Huittinen will be built as state water supply work. Receiving support from the Ministry of the Environment is justified: the project is regionally significant, it implements the strategy of the environmental authorities, it is economically sensible, it guarantees the best possible cleaning result and it crosses the provincial borders. State support is sought for the construction of transmission sewers. Millaisia hajuhaittoja uusi keskuspuhdistamo aiheuttaa ympäristöön? Huittisten puhdistamolla käsiteltävä jätevesimäärä ja lietemäärät kasvavat, jolloin hajunmuodostumispotentiaalia on enemmän. Suuressa yksikössä hajut voidaan kuitenkin hallita ja puhdistaa nykyistä tehokkaammin, jolloin hajuhaitat eivät lisäänny vaan pikemminkin vähenevät vanhaan verrattuna. Miten ylimaakunnallisesti keskitetty jätevedenpuhdistus vaikuttaa ympäristöön? Keskittämällä jäteveden käsittely yhteen suureen yksikköön vesistön kokonaiskuormitus vähenee ja häiriötilanteisiin varautuminen on helpompaa kuin pienissä yksiköissä. Samalla myös purkupisteiden määrä vähenee. Puhdistamon päästöt ilmaan ovat ja tulee olemaan vähäisiä eikä niistä aiheudu yleiseen viihtyisyyteen vaikuttavaa haittaa. Puhdistamotoiminnasta aiheutuva liikenne syntyy puhdistamon huollosta ja käytöstä. Puhdistamon laajentamisen ja tehostamisen yhteydessä aiheutuu rakennustöiden ajaksi ylimääräistä liikennettä. The operation does not cause noise that is harmful to the environment. Aeration compressors are the largest source of noise and are located indoors. The new designed aeration compressors are fairly quiet. The operation does not cause vibration. What is done with the dried surplus sludge? The dried sludge is transported to a competitive biogas plant for further processing. How does a wastewater treatment plant work during a power outage? The wastewater passes through by gravity, but the cleaning efficiency decreases slightly during the break. Huittinen | Punkalaidun | Sastamala