Ugrading the Gifhorn waste water treatment plant,
New sewage sludge treatment plant

Country: The Federal Republic of Germany
Location: Gifhorn, Federal state of Lower Saxony
Client: ASG, the Sewage Water and Street Cleaning Operations of the city of Gifhorn
Project dimensions: The quantity treated by the Seaborne plant is dimensioned at 140 m³ of substrate per day.
Project timeline: 2003 - 2006
Investment volume: Total amount approx. 7 million EUR. Of that approx. 3.8 million EUR (engineering incl.) had to be invested to the Seaborne technology.
Project work:  Seaborne EPM AG did all planning services for the process and mechanical engineering components of the new treatment plant, including draft and execution planning and assistance in awarding contracts. During the construction period Seaborne was responsible of the construction supervision and documentation. Commissioning of the plant and test runs accompanied by chemical analyses were carried out by Seaborne. The Wittig Planning Office, Winsen (Aller), took responsibility of the work concerning hall construction, infrastructure and interfaces.
Process engineering: Seaborne technology will be used to solubise the thermophilically fermented sewage sludge. The heavy metals it contains will be separated and the nutrients of nitrogen and phosphorus will be recovered and converted to nonpolluted fertilisers. The biogas is desulphurised in the processing so that it can be safely converted into electricity in a combined heat and power station.

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