International Issue 2009

- Trickle-Flow Biotechnology
- Domestic Wastewater Recycling
- Water Characteristics of Brazil
- ...


Raw water quality prognosis
Dr. Carsten Hansen, Dr. Tina Seebode, Dr. Axel Bergmann, Roland Schindler, Prof. Dr. Wolfgang van Berk
Hydrogeochemical modelling of raw water quality – a planning and forecasting tool
Water Characteristics of Brazil: The Need for Local Action
Dr. Dipl.-Ing. Mag. Wolfgang K. Walter, Univ. Prof. Dr.-Ing. Wolfgang GĂĽnthert
Brazil’s perception as a water nation, not meaning a national waterborne strategy, although the Brazilian fleet aims for a substantial upgrade in order to demonstrate Brazilian petrol interests most recently, is widely covered in the literature. Even up to 16 per cent of the world’s freshwater resources are said to be located on Brazilian territory.
Long term experience with Germany’s largest membrane filtration plant for drinking water production (7,000 m3/h)
Dr.-Ing. Stefan Panglisch, Dipl.-Ing. Walter Dautzenberg, Andreas Holy
Currently, around 100 membrane filtration plants are in operation in Germany, of which 85 % are operated with low pressure porous microfiltration (MF) and ultrafiltration (UF) membranes. About 90 % of the total number of plants uses spring and well water as a raw water resource and just 7 % are fed with reservoir water. However, related to the total capacity of roughly 325,000 m3 produced drinking water per day by porous membranes in Germany about 60 % is from reservoir water, meaning a lot of water is produced by a small number of large plants.
Treatment of Waters Containing Humates with Ozone Biofiltration
Dipl.-Ing.(FH) Manfred Brugger
In recent years, ozone biofiltration has established itself successfully in drinking water treatment applications. Practical examples in Germany, Scandinavia and the USA illustrate that with ozone biofiltration, it is possible to realise reliable and economical drinking water treatment plants. In addition to the fundamental basics, the results from an operational plant in Norway will also be outlined in this article.
CPF Cast Surfaces Prove their Worth in Drinking Water Reservoirs
Ltd. Akad. Dir. PD Dr.-Ing. Gerhard Merkl
According to EN 1508 [1], “Service reservoirs shall be designed, constructed and operated to prevent contamination or other chemical, physical and biological changes that are detrimental to the water quality”. Only approved materials shall be used in the surfaces in contact with the stored water. “ In order to facilitate subsequent cleaning and avoid bacterial growth, internal surfaces shall be as smooth and pore-free as possible.
Innovative Multibore® UF Technology in a Municipal Wastewater re-use Plant
Ralf Krueger, Hu Shaohua, Zhang Ruijin
The expansion of the Beijing Capital International Airport made it necessary to open up new sources for the water supply to the new facilities. The decision for reuse of effluent water from a municipal wastewater plant was mainly based on two reasons. The major reason is to save scarce groundwater. In addition, the idea of providing water using an innovative and economically friendly water re-use plant was strongly supported by the fact that the expansion of the Beijing Capital Airport coincided with the 2008 Olympic Games in Beijing.
Trickle-Flow Biotechnology for Waste Water Treatment / Abwasserbehandlung
Dr. Lutz Haldenwang, Kerstin Ilgen, Dr. Horst Reichardt, Mathias Kasek, Dr. Edith Armanetti
A modern process for highly efficient wastewater treatment
Domestic Wastewater Recycling
Dipl.-Ing. Mathias Antholz, Dr.-Ing. Joachim Behrendt, Dipl.-Ing. Torsten Bettendorf, Dipl.-Biol. Ulrich Braun, Dipl. Ing. Ulrike Gayh
„Toilet-to-toilet“ and „tap-to-tap“, instead of „toilet-to-tap“ – a new approach
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