The Jenfelder Au quarter, a new residential area in the Wandsbek district, is being built on the former site of the Lettow-Vorbeck military barracks. In Jenfelder Au, the HAMBURG WATER Cycle® will be implemented in over 800 newly constructed housing units.
Further background information on Jenfelder Au can be found here.
HAMBURG WATER Cycle®
Closed-loop Wastewater Management
Water is both part of our lives and essential for our lives, both at the present and in the future. The innovative HAMBURG WATER Cycle® demonstrates how water can be handled in an economical and environmentally responsible way. Please read the following pages to learn about the separate handling of household water flows and about how toilets are the starting point for renewable energy.
HAMBURG WATER Cycle
The Jenfelder Au quarter
Wastewater Management: New Methods
Why is it important to develop new technologies that conserve energy, nutrients and water? Which events have shaped today’s wastewater and sewage management practices?
Answers to these questions and further information on conventional wastewater practices can be found here.

HAMBURG WASSER

HAMBURG WASSER is the water and wastewater specialist in the hanseatic city of Hamburg, providing both water and wastewater services through one company. In addition to providing safe water and wastewater disposal at the highest quality for the residents of Hamburg, the company also uses its know-how to provide customized solutions for the water supply and waste management needs of the surrounding cities and municipalities in the metropolitan region.
More information can be found at www.hamburgwasser.de
Latest News
Results Resident Survey 2021
Feedback from the residents of Jenfelder Au is important to us. For this reason, another survey was conducted in Jenfelder Au at the beginning of the year as part of the European project SENSE. We have summarized the results of this year's two-stage survey - first online and then in interviews - for you here (German only). We would like to thank you for your numerous participation and the interesting feedback.
Guided tour for residents
On 22.09.2021, a guided tour for the residents took place at the work yard in the Jenfelder Au - in compliance with the hygiene concept developed for this purpose. This year 53 residents participated. During the tour, new residents of the Jenfelder Au can learn how the separation system from black and grey water works and how energy can be generated from the black water.
We thank you for your interest and the numerous questions asked and wish you all the best for the future in Jenfelder Au.
Television reports on the HWC
In the ARTE program Xenius, the HWC in the Jenfelder Au was used to explain how wastewater can be used as a resource in the future. The show from 26.10.2020 is available in the ARTE-Mediathek until the end of January 2021.
HWC @ Xenius: "Toiletten - wie wir unsere Ausscheidungen nutzen können"
The ZDF series plan b explores new ways of dealing with (drinking) water as a resource in its program of September 12, 2020. Of course, the HAMBURG WATER Cycle® is an essential part of this topic. The HWC report begins after 5 minutes.
HWC @ plan b: "Die Wasserretter - Kampf gegen die Trockenheit"
In the WDR knowledge program Quarks on 08.09.2020 it was about toilets. HAMBURG WASSER employee Bernd Bieniek presents the innovative concept and explains how energy can be generated using wastewater.
HWC @ Quarks: "Energie aus Scheiße"
Watch the long-term documentation now!
The HAMBURG WATER Cycle® is an innovative and sustainable project. The planning and construction of this closed-loop system is now almost complete. With this in mind, HAMBURG WASSER produced a long-term documentation video (only in German) which takes a closer look at the realisation of the project and provides exciting insights.