Sustainable Water Treatment and Nutrient Reuse Options

German Cluster

Scientific Representative: Mr. Mirko Hänel
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Abwasserverbandes Braunschweig (AVBS)

The wastewater-association Braunschweig was founded in 1954. The association started to irrigate wastewater – from the beginning until 1979 untreated raw wastewater – on agricultural areas. Nowadays the water is treated in a large wastewater treatment plant. This plant was constructed for about 350.000 inhabitant’s equivalents. The average amount of influx is about 60.000 m³/d and about 21 Mill. m³/y. 15 m³/y were reused by sprinkler irrigation in the area of the Association and 6 Mill. m³/y has an biological after-treatment in a surface-flooding-area. The sprinkler irrigation area comprise of about 3.000 ha. The water demand for agricultural purpose was calculated with 300 mm/y additional sprinkler irrigation amounts annually. 150 mm/y were calculated in the vegetation period. Experience has shown in the following decades that the additional water quantity could be increased up to 500 mm/y.

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HYDRO-AIR international irrigation systems GmbH (HYDRO-AIR)

Hydroair is an independent manufacturer of highly innovative and advanced module technology for irrigation systems and the company is the market leader in Eastern Germany. Besides standard irrigation technologies, they offer distribution systems for manure and industrial liquid wastes for agricultural purposes. Ranges from single components up to complete irrigation management systems are available. The company was founded in 1991, certified 1999 with DIN EN ISO 9001 and has currently 20 employees including management staff, skilled workers and administration staff operating the R&D and production facilities.

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Stadt Braunschweig - Abteilung Umweltschutz (StadtBS)

The regional water authority within the Environmental department of the city of Braunschweig together with the Environmental Protection Agency of the City Braunschweig has the task of implementing a modern and effective environmental protection program. The Agency is responsible for water-,soil- and forest protection and nature conservation and one of its main tasks is to evaluate and issue permits and approvals for enterprises and private sector alike on projects, buildings, etc.

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Verein zur Förderung des Technologietransfers an der Hochschule Bremerhaven e. V. (TTZ)

TTZ is a private non-profit organization established in 1987 in Bremerhaven, Germany specialized in the fields of environment technology, biomass production, conversion and use, waste and wastewater management and energy efficiency. It is an innovative provider of technology transfer services and conducts customer-oriented training, research and development. TTZ carries out applied research and has been or is involved in several European projects dealing with waste and wastewater management, sustainable biomass and biogas production and use. Overall, TTZ has 85 highly skilled academic employees (scientists and engineers). Since its foundation, TTZ has successfully co-operated with SME’s at regional, national and EU level in more than 2,500 R&D projects. It carried out successfully, either as coordinator or partner, more than 125 projects of FP5, FP6 and FP7.

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