STP TOLLEBEEK

Waste water treatment
STP TOLLEBEEK
Sewers transport waste water to sewage treatment plants (STPs). Together with four other
plants managed by the Zuiderzeeland Regional Water Authority, the Tollebeek STP treats
the water until it is clean enough to be pumped back into the surface water.
Urkerweg 32, Tollebeek, the Netherlands T +31(0)527 656 165 www.zuiderzeeland.nl
Major Pumping Stations
Emmeloord Noord 1.062 m3/hour
Emmeloord Zuid 180 m3/hour
Nagele 170 m3/hour
Espel 210 m3/hour
Tollebeek 100 m3/hour
Urk-Kern 647 m3/hour
Urk-Stortemelk 386 m3/hour
The Zuiderzeeland Regional Water Authority also
manages seven sewage pumping stations, which are
connected to the major pumping stations stated above.
1 Sludge Fermentation Tank
contents per tank
diameter gas production 2.000 m3
16 m
1.000 m3/day
Gasometer contents 300 m3
2 Homogenisation Tanks
diameter contents side depth
16 m
700 m3
3,5 m
Sludge Dewatering Pressure Pipes
number of centrifuges
capacity Roughly 92 km of pressure pipes in the
Noordoostpolder and Urk municipalities are managed
by the Zuiderzeeland Regional Water Authority.
2
23 m3/hour
Water Flow
Screezer rotating drum sieve
Treatment
capacity stave distance 3.600 m3/hour
7 mm
Plant Type
Activated sludge plant with FAST® dosing and sludge
fermentation. Nitrogen removal by pre-denitrification.
Primary Settling Tank
Capacity
2 Contact Tanks
Treats 79,500 resident equivalents on the basis of
Biochemical Oxygen Demand.
contents diameter 42,0 m
80 m3
2 Anaerobic Tanks
Receiving Surface Water
contents 770 m3
Urkervaart.
2 Denitrification Tanks (type: mixed tank)
Hydraulic Capacity
supply in dry weather supply in wet weather 865 m3/hour
3.150 m3/hour
contents per tank
2 Nitrification Tanks (type: batch flow)
contents Sludge Flow
465 m3
2.550 m3
2 Facultative Zones
contents 385 m3
1 Primary Thickener
diameter side depth 11 m
3,0 m
Surplus Sludge Thickener
number of sieve thickeners
capacity 1
25 m3/hour
Oxygen Input (2 blowers + 1 reserve)
capacity
4.002 Nm3/hour
240 kg O2 /hour
2 Secondary Settling Tanks
diameter side depth 46,0 m
2,0 m
2 Return Sludge Pumps
STP tollebeek
capacity 700 m3/hour

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