Gold standard for utility performance

The section of the Danube just under Budapest between the Csepel Island, Ráckeve, and Szigetszentmiklós is called the southern water resource and covers about 30% of Budapest’s water needs.

The Csepel Island – wells and water treatment plants

The pump house in Szigetszentmiklós – which got the water from 6 shaft  wells – was built to supply the Wekerle plant in Kispest. 11 large diameter special horizontal wells were also established in 1948 as an expansion. When “Big Budapest” got its shape in 1950, we took over the facilities of the southern area in such conditions. The pump house proved to be scarcer and scarcer to meet the ever increasing water demand, therefore, between 1994 and 1996 a new modern pump house was built.

In the meantime, the pump house in Csepel was closed down in 1972, because a manufacturing plant settled in the area, thus the pump house in Szigetszentmiklós was renamed to Csepel Main Plant.

The Szentendre Island “filled up” after the construction of the wells in Kisoroszi. Therefore, the construction of the special horizontal wells became only possible in the Csepel Island, however, it was known that the quality of the produced water there will be objectionable. On the southern section of the Danube under Budapest, significant wastewater load can be detected. Therefore, significant iron and manganese contamination appeared in the wells of Csepel and in those in Halásztelek and Tököl built for the ever increasing water demand. For the removal of these, two water treatment plants were built, one in Csepel and one in Ráckeve.

Clean – without manganese and iron

The contamination is dissolved and its removal is carried out by iron and manganese ion oxidation, because after than it is no longer soluble and precipitates, thus it can be filtered. For this purpose the most radical oxidizer, ozone is used that is produced from the air by slow electric bursts in Ráckeve and locally from liquid oxygen in Csepel. Due to the technology, contamination precipitates from the water, thus it can be filtered by sand filters. Adsorption activated carbon filters were also installed in Csepel in order to remove unwanted odour and taste, and sludge treatment is different as well. The sludge is delivered into infiltration reservoirs in Ráckeve, while in Csepel the wash water is settled and returned to the beginning of the system, where the settled sludge is compressed and expressed. The residual small sludge amount can be handled as waste.

 

 

 

 

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