Fused connecting lines made of HDPE in Düsseldorf

Autor: Alexander Schuir / Hanjo Kanne / Kai Büßecker
Themenbereich: 3R

Home to about 600,000 inhabitants, the state capital of North Rhine-Westphalia Düsseldorf, like any other city, is constantly endeavouring to provide its citizens, commuters, and guests with a fully functional infrastructure to meet the demands of ...

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Quality Assurance and modern data management

Autor: Jörg Sebastian
Themenbereich: 3R

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Rehabilitation of large profiles lacking long-term stability

Autor: Dietmar Beckmann / Heinz Doll / Vladimir Lacmanović
Themenbereich: 3R

Many large interceptor sewers, predominantly installed under public roads, have been in use for over 100 years. They are made of brickwork or compressed concrete and often show serious damage, so that it would seem that long-term stability can no ...

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From the Millennium Development to the Sustainable Development Goals for Drinking Water and Sanitation

Autor: Roland Werchota / Mark Oelmann / Claudia Freimuth
Themenbereich: gwf - Wasser|Abwasser

According to the UN the Millennium Development Targets with respect to drinking water and sanitation were achieved far ahead of schedule. When taking a closer look, however, this does not reflect the overall picture. In Sub-Saharan Africa, for ...

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A low Cost GNSS Surveying System for Water Distribution System Modelling

Autor: Nicolai Guth / Philipp Klingel
Themenbereich: gwf - Wasser|Abwasser

The most time consuming part of modelling a water distribution system is the collection and digitizing of data, especially when pipe network data is not available. This is often the case, for example, in developing countries. This paper describes a ...

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Ceramic Hollow Fiber Membranes as new Filter Media and their Application in Oil/Water Separation Processes

Autor: Steffen Schütz / Frank Ehlen / Ina Unger / Sreenath Kariveti / Can Wang / Mehrdad Ebrahimi / Steffen Kerker / Peter Czermak
Themenbereich: gwf - Wasser|Abwasser

Ceramic membranes become continuously attractive for separation applications with fluids at increased temperatures, at high or low pH levels and in contact with critical chemical species as solvents or other organic components when polymeric ...

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Small Scale Plants for Resource Efficiency Training in the Indian Metal Industry

Autor: Miriam Sartor / Pavel Ivashechkin / Frank Rögener / Malini Balakrishnan / Hans-Jürgen Rapp / Thorsten Schneiker / Marc Enders
Themenbereich: gwf - Wasser|Abwasser

Metal industry in India employs about 1 300 000 people in approximately 12 000 organized units. These small and medium sized companies (SMEs) are either specialized coaters or fabricators with metal finishing as one of their operations. Less than 5 ...

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Advanced Wastewater Treatment with Ultrafiltration

Autor: Lena Causemann / Stefan Krause
Themenbereich: gwf - Wasser|Abwasser

Ultrafiltration membranes have attracted wastewater treatment technologies worldwide during the past 15 years. Within a first research project, “post-filtration (polishing) for advanced wastewater treatment by membrane operation” (NAWAMem) ...

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Approach to determine Particle Density for Modelling Purposes in Water Treatment and Supply

Autor: Irene Slavik / Andreas Korrenz / Klaus Ripl / Wolfgang Uhl
Themenbereich: gwf - Wasser|Abwasser

In this study a standardised evaluation routine was developed to determine real particle density in form of a particle density distribution from sedimentation analysis. Sedimentation analysis was performed to determine particle settling velocity as ...

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gwf – Wasser|Abwasser – Special 2 2015

Alles Wasserwissen was Sie wissen müssen. Die Fachzeitschrift rund um die Wasser- und ...

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Vom Kennzahlenvergleich zur betrieblichen Verbesserung – 10 Jahre Benchmarking Fernwasserversorgung in Deutschland

Autor: Daniel Zipperer, Peter Graf, Dr. Katrin Fäcks, Burkhard Danz, Matthias Weiß
Themenbereich: Wasser & Abwasser

Die Relevanz und Ausgestaltung des Benchmarkings in der Wasserwirtschaft werden immer wieder kontrovers diskutiert. Der vorliegende Beitrag verdeutlicht, dass Benchmarking bei konsequenter Anwendung ein wirksames Managementinstrument ist. Der ...

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Freisetzung von Silberionen aus Silber-Nanopartikeln und deren Verteilung in modellierten Gewässersystemen

Autor: Claus Wasmuth
Themenbereich: Wasser & Abwasser

Die Freisetzung von Silberionen aus Silber-Nanopartikeln ist ein zentraler Bestandteil der Nanopartikel-Forschung der letzten Jahre. Um die Mechanismen der Kontamination von Gewässern mit Silber-Nanopartikeln besser zu verstehen, wurde diese Studie ...

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