Location & approach

By Car

The campus of the Technical University of Dortmund is located near the freeway junction Dortmund West, where the Sauerland line A45 crosses the Ruhr expressway B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the South Campus, the Dortmund-Dorstfeld exit on the A40 leads to the North Campus. The university is signposted at both exits.

By bus and train

The "Dortmund Universität" S-Bahn station is located directly on the North Campus. From there, the S-Bahn line S1 runs every 15 or 30 minutes to Dortmund main station and in the opposite direction to Düsseldorf main station via Bochum, Essen and Duisburg. In addition, the university can be reached by bus lines 445, 447 and 462. Timetable information can be found on the homepage of the Rhine-Ruhr Transport Association, and DSW21 also offer an interactive route network map.

The H-Bahn

One of the landmarks of the TU Dortmund is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, while Line 2 commutes every 5 minutes between Campus North and Campus South. It covers this distance in two minutes.

By Airplane

From Dortmund Airport, the AirportExpress takes just over 20 minutes to Dortmund's main train station, and from there, the S-Bahn takes you to the university. A wider range of international flight connections is offered by Düsseldorf Airport, about 60 kilometers away, which can be reached directly by S-Bahn from the university's train station.

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Contrast

Location & approach

By Car

The campus of the Technical University of Dortmund is located near the freeway junction Dortmund West, where the Sauerland line A45 crosses the Ruhr expressway B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the South Campus, the Dortmund-Dorstfeld exit on the A40 leads to the North Campus. The university is signposted at both exits.

By bus and train

The "Dortmund Universität" S-Bahn station is located directly on the North Campus. From there, the S-Bahn line S1 runs every 15 or 30 minutes to Dortmund main station and in the opposite direction to Düsseldorf main station via Bochum, Essen and Duisburg. In addition, the university can be reached by bus lines 445, 447 and 462. Timetable information can be found on the homepage of the Rhine-Ruhr Transport Association, and DSW21 also offer an interactive route network map.

The H-Bahn

One of the landmarks of the TU Dortmund is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, while Line 2 commutes every 5 minutes between Campus North and Campus South. It covers this distance in two minutes.

By Airplane

From Dortmund Airport, the AirportExpress takes just over 20 minutes to Dortmund's main train station, and from there, the S-Bahn takes you to the university. A wider range of international flight connections is offered by Düsseldorf Airport, about 60 kilometers away, which can be reached directly by S-Bahn from the university's train station.

ServicePortal UniMail

New Publication available

07/19/2025

Graphical Abstract

The impact of process parameters on the performance of a wash column in an integrated suspension melt crystallization pilot plant  

Ronja Heming, Okan Yilmaz, Kerstin Wohlgemuth

https://doi.org/10.1016/j.seppur.2025.134411

The development of efficient and environmentally friendly industrial purification technologies is a key trend in the chemical industry. This study focuses on suspension melt crystallization (freeze concentration), which has garnered significant attention due to its exceptional purification efficiency and low energy consumption, particularly when utilizing renewable energy sources. This technology presents a promising alternative for dewatering processes such as desalination and wastewater treatment. To fully leverage the advantages of suspension melt crystallization, effective solid–liquid separation and crystal purification are crucial, typically achieved through continuously operated wash columns integrated with crystallization units. However, the intricate operation of these columns necessitates a comprehensive understanding of how various process parameters impact their operational range and purification efficiency. In this research, a systematic experimental approach using a binary aqueous model system with sodium chloride was employed to evaluate the performance of a mechanical piston-type wash column equipped with a melt loop. Three critical process parameters were investigated: wash front height, melt loop temperature, and compression time of the piston. Our findings indicate that within stable operating conditions these parameters significantly influence the purification efficiency by maintaining a constant production rate. Notably, optimizing the wash front height and melt loop temperature led to an impressive purification efficiency of approximately 99.9% at lower values for both parameters. These results highlight the potential for enhanced operational performance in industrial applications and underscore that the melt temperature is also a critical parameter for process control.