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Energy efficient use of domestic waste water

02.10.2014

Urban district meets half of its energy requirement through local generation

The faeces contained in domestic sewage, so-called black water, can be used for producing biogas. Until now this has been mostly conducted at the end of the sewage channels at the waste water treatment plant.


The former barracks buildings have been refurbished and preserved. (© HAMBURG WASSER)

The BINE-Projektinfo brochure “Energy from waste water supplies urban district” (09/2014) presents an alternative concept for the new Jenfelder Au district in Hamburg. Here the individual domestic waste water flows are no longer mixed but are drained separately.

This enables the concentrated black water to be utilised in a particularly efficient manner in a decentralised biogas plant. The separately discharged rainwater is used to fill a pond.

In the new urban quarter of Jenfelder Au, which is located in Hamburg’s Wandsbek district, a total of 770 residential units for approximately 2,000 people are being created across 35 hectares of land. In addition to two restored former army barrack buildings, more than 80 per cent of the buildings will be new-build schemes. All homes will be equipped with vacuum toilets that require comparatively little flushing water.

The waste water concept entails the separate capture and drainage of the three partial water flows consisting of grey water from the kitchen and bath, rainwater and black water. The biogas produced during the fermentation of the black water will be converted via a micro gas turbine into electricity and heat.

This will enable about 40 per cent of the heating requirement and 50 per cent of the electricity requirement to be met by local production in the district. A new district is therefore being created in Jenfeld that combines waste water and energy generation on a large scale.

Construction work is currently underway and the first residents will move into the new district in 2015. HAMBURG WASSER is responsible for managing the scheme in collaboration with the municipal administration.

The BINE-projectinfobrochure, which can be obtained free of charge from the BINE Information Service at FIZ Karlsruhe, is available online at www.bine.info or by calling +49 (0)228 92379-0.

Press contact
Uwe Milles
presse(at)bine.info

About BINE Information Service

Energy research for practical applications

The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.

About FIZ Karlsruhe

FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
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FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.

Weitere Informationen:

http://www.bine.info/en/press/press-releases/press/pressemitteilung/haeusliche-a... - Download cover, press release and info-pdf
http://www.bine.info/en - BINE Informationsdienst english

Rüdiger Mack | idw - Informationsdienst Wissenschaft

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