Bremen

Volume 12 Metal Microstructures in Zeolites. Preparation - Properties -Applications. Proceedings of a Workshop, Bremen, September 22-24,1982 edited by P.A. Jacobs, N.l. Jaeger, P. Jitu and G. Schulz-Ekloff... 

Bremer, a. Bremen, -blau, n. Bremen blue, -grtin, n. Bremen green. 

D-80333 Miinchen, Germany Fraunhofer-Institut fiir Angewandte Materialforschung, Lesumer Heerstr. 36, D-28717 Bremen, Germany... 

As indicated, pig iron production requires input of a reducing agent. Stahlwerke Bremen uses plastic waste as a substitute for fuel oil. Plastics are injected into the blast furnace in a similar way to coal powder or fuel oil. In order to remove fibres and metal particles a separation takes place. Large particles are separated via a screen of > 18 mm. The smaller plastic waste particles (< 18 mm) go to the injection vessel. There, an injection pressure of about 0.5 MPa is built up. Via a pneumatic process the plastics can be dosed and discharged into the blast furnace. The bulk density of the plastics has to be 0.3 tonnes/m. ... 

The permit allows Stahlwerke Bremen to use 500 tonne MPW per day with a chlorine content of up to 1.5% (= ca. 3% PVC) on a daily average. This level seems to be a balance between the need to allow for a reasonable PVC tolerance in MPW (lower values are rare in MPW), and the desire of Bremen Stahlwerke to use a material that is as free of impurities as possible. After all, chlorine has no added value in the process, and may only contribute to problems like corrosion in the blast furnace, etc. In sum, the 1.5% level seems to be a balance between commercial reality and a technical ideal. 

Chemical recycling is examined as a means for plastics waste management, and commercial developments by a number of West European companies are described. VEBA OEL RWE RHEINBRAUN AG BASF AG DSM NV BP CHEMICALS LTD. ENICHEM ELF ATOCHEM SA STAHLWERKE BREMEN PETROFINA SA... 

Chrislof M. Niemeyer Department of Biotechnology, University of Bremen, Bremen, Germany... 

The author thanks the International Office of the University of Bremen, Germany, for financial support from the DAAD program Ostpartnerschaften. 

Kurfurst U (1984) Untersuchungen uber die Schwermetallanalyse in Feststoffen mit der direk-ten Zeeman-Atomabsorptionsspektrometrie. Dissertation Univ. Bremen, FB Physik. 

In the 3rd Carbon Dioxide Utilisation Summit, October 2014 in Bremen, Germany, ETOGAS GmbH presented its turn-Key plan and technology Power-to-Gas for SNG through electrolysis processes [18]. 

Fig. 3.12 Model of an agglomerate consisting of many small interstellar dust particles. Each of the rod-shaped particles consists of a silicate nucleus surrounded by yellowish organic material. A further coating consists of ice formed from condensed gases, such as water, ammonia, methanol, carbon dioxide and carbon monoxide. Photograph Gisela Kruger, University of Bremen...

I thank my colleagues Gunter von Kiedrowski (Ruhr-Universitat Bochum), Wolfram Thiemann (Universitat Bremen) and Uwe Meierhenrich (Universite de Nice, Sophia Antipolis). Particular thanks go to my colleague Terry Mitchell from the Technische Universitat Dortmund for providing the translation and for accommodating all my changes and additions. 

I thank Dr. Gerda Horneck (DLR, Cologne) and my colleagues Clas Blomberg (Royal Institute of Technology, Stockholm), Johannes Feizinger (Ruhr University, Bochum), Niels G. Holm (University of Stockholm), Gunter von Kiedrowski (Ruhr University, Bochum), Wolfram Thiemann (University of Bremen) and Roland Winter (University of Dortmund). 

Institut fur Anorganische und Physikalische Chemie (Fb 2), Universitat Bremen, D-28334 Bremen, Germany... 

We thank Professor Dr. C. Silvestru from the Babes-Bolyai University (Cluj-Napoca, Romania) for helpful discussions and the University of Bremen for financial support. 

Vasylyeva T., Duka E, Kharitonov N., 1996. Rehabilitation effect of humus substances in ecopathological conditions 10th International Peat Congress, Bremen-Germany... 

Fig. 3. Dissolved REE data for waste water treatment plants in different countries Notice the orders of magnitude difference in Gd values. Data for Denver from Bau et al. (2006), Berlin from Bau Dulski (1996), Mackay from Lawrence et al. (2006) and Prague from Moller et al. (2002). Samples from Vienna and Bremen are from this study.

The other cities show varying but nevertheless significant amounts of anthropogenic Gd in their tapwater. With the exception of Bremen (20% anthropogenic Gd), all samples show more than half of total dissolved Gd to be of anthropogenic origin, with up to 95% for the Berlin sample. The anthropogenic... 

Acknowledgements We thank the staff of the Geochemistry Laboratory at Jacobs University Bremen, and Peter Dulski of GFZ Potsdam. This research is funded by the German Science Foundation. 

Figure 1.5. (a) Schematic of spray forming process (b) a pilot-plant scale facility for spray forming at University of Bremen, Germany. Top top view. Bottom side view (Courtesy of Prof. Dr.-Ing. Klaus Bauckhage at University of Bremen, Germany.)... 

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