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Helgoland, Germany

Noggerath® Compact Unit Combi

Noggerath® Compact Unit Combi 1400FF - Wastewater Treatment on the Island of Helgoland, Germany

Situation

The high seas island of Helgoland has had its own sewage treatment plant since the late 1980s, which was operated as a continuous flow reactor. The plant was no longer able to meet all requirements of a modern wastewater treatment plant and also had severe structural defects.
In addition, large seasonal fluctuations have to be covered, as the island receives approx. 350,000 visitors per annum - mainly during the summer season. In 2019, after the clearance of explosive ordnance, the construction of the new wastewater treatment plant on the island of Helgoland began with a capacity of 6,150 PE. The mechanical pre-treatment has been realized by the Noggerath® Compact Unit. The pre-treatment was put into operation in December 2020.

 

Customer

Bremer Pro Aqua Wasser– u. Abwassertechnik GmbH

 

User

AZV Südholstein

Operator

Karl Meyer Inselentsorgung GmbH

Commissioning

December 2020

 

Solution

The solution is the Noggerath® Compact Unit made of stainless steel, which has been installed above ground in modular design and covers all cleaning steps of a mechanical pre-treatment within one machine.
2 Passavant® Fine Screens with subsequent screenings treatment including dewatering and transport are installed on the grit trap. Due to a grit trap aeration, the grease enters the integrated grease trap and is collected separately. The sedimented grit is conveyed to a Noggerath® Grit Washer, which separates the organic matter from the grit, dewaters the grit and discharges it.

 

Technical Data

2 x Passavant® Fine Screens
Type:                                                       Step Screens in redundant
                                                                 installation
Max. Flowrate:                                     50 l/s at 40% blinding per screen
Gap width:                                             3 mm

Noggerath® Screenings Wash Press
Type:                                                       NWP 250
Dry substance of the treated screenings 35-45%.

Grit Trap walkable
Length:                                                   5,200 mm
Width:                                                    1,400 mm
Grit removal capacity:                        50 l/s: 90% for particle size >0.2 mm

Grease Trap walkable
Length:                                                   5,200 mm
Width:                                                    400 mm with separate grease trap

Noggerath® Grit Washer, dry fed
Type:                                                      GW 400
Throughput capacity:                        400 l/h washed grit
Loss on ignition < 3%, Dry matter content > 90%

Overall dimensions of the Compact Unit
Length approx.:                                   7,900 mm
Width approx.:                                     2,450 mm
Height approx.:                                    4,350 mm
Total weight approx.:                         4,660 kg
Operating weight approx.:                19,260 kg

 

Are you interested in more details or do you have any further requests?

Therefore, please get in touch via our general contact form and refer to this specific case study.

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