Pumping station/stormwater tank cleaning system WASTE WATER Retention soil filter plant at gravel pit -/

The largest filter station for pur- important station was commis- area initially discharge into a tank ifying stormwater in Germany is sioned in 2004. KSB supplied all where the dirt contained by the found on the river , one of of the mechanical equipment for water has a chance to settle. the streams feeding the Spree, the pumping stations, including From there, the pre-purified water where it greatly improves the the Amajet system, performed all is pumped into an intermediate quality of the river water and, installation work and finally storage reservoir by several consequently, is of great value for handed over the complete installa- Amacan pumps, from where it maintaining the quality of the tion to its owners after a flawless is supplied to the filter installation groundwater in the area. commissioning. situated on the west bank of the After a construction period lasting The stormwater outlet channels flooded gravel pit. a mere thirteen months, the from the 600 hectare catchment

Scope of supply and technical data

Customer: Scope of supply: Pumps: Included in our scope of supply 2 x Amacan were all mechanical equipment Berlin Water Authority, Berlin PB 4 700-470/1006XAG1 for the pumping stations, valves, 3

5 Q = 3,000 m /h, H = 7.3 m pipework, all installation and 0 / Total realisation period: 7

0 2 x Amacan assembly work as well as 16 weeks PB 4 600-350/604XAG1 commissioning. Total order value: Q = 1,500 m3/h, H = 7.3 m 0 1 -

6 ?

3 Approx. 300,000 0 2 x Amarex KRT 1 . 3 1

3 Commisioned: 2 x Amarex N 0 November 2004 4 x Amajet Pumping station/stormwater tank cleaning system WASTE WATER Retention soil filter plant at Biesdorf gravel pit Berlin-Marzahn/Germany

The filter installation, which meas- Our Amajets are used to clean the Berlin Water Authority was partly ures 16,000 square meters, is intermediate storage reservoir. financed by the EU. In the coming covered with a layer of mineral Depending on the amount of years it will be closely watched by substrate approximately one meter water remaining in the reservoir, a team of scientists who hope to thick and planted with reeds. The the pumps – either running con- gain the necessary experience to contaminants dissolved in the tinuously or in the low-energy develop the concept further at water, for example phosphorus, intermittent operation mode – are other sites in need of water puri- nitrogen, heavy metals and hydro- used to keep the solid dirt in fication. Also, a team of our more carbons, are absorbed by the suspension and prevent it from than 1,200 service specialists is substrate, but also by the plants, settling on the floor of the reser- ready to provide immediate to which these substances act as voir. Next, the homogeneous dirt assistance in emergencies when- nutrients. By the time the process is discharged via a pumping sta- ever needed. is complete, the water to be pur- tion equipped with our robust ified has lost up to 94 % of filtra- Amarex pumps which drain the For more information please con- ble substances, e.g. heavy-metal water into the sewer system at a tact us at Tel. +49 30 43578-5055, compounds, and up to 79 % of steady rate of flow. The retention [email protected] or the phosphorus contained by it. soil filter plant owned by the www.ksb.com.