Lake Constance Water Supply

Water Works Sipplinger Berg

Every year Lake Constance Water takes more than 130 million cubic metres of water from a depth of 60 metres. EVERZIT® N plays an important role that this valuable commodity from Europe’s biggest drinking water reservoir is brought in clear and pure quality to four million people.

In the filter hall 27 multi-layer filters with a total surface of approx. 3000 square metres retain turbidity completely and guarantee microbiological protection. The high-rate filters consist of 40 centimetres of EVERZIT® N and 60 centimetres of quartz sand. Thus the coarse EVERZIT®N guarantees a high filtration efficiency. At the same time the holding times of the filters are extended by optimized volume filtration which results in a cost reduction for rinsing water and energy. The EVERZIT® N  multi-layer filters are cleaned in a rinsing sequence of air and water.

 

Filter layout:

EVERZIT® N:	0,8 - 1,6 mm:	400 mm
Quartzsand:	0,3 - 0,7 mm:	600 mm
Support layer:		400 mm

 

Technical Data:

Capacity:	approx. 15,000 m³/h
Number of multi-layer filters:	27
Total surface:	3,000 m²
Filter velocity:	approx. 5 m/h