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Short Presentation

Dr.-Ing. Habil. J. Maćkowiak is executive director of ENVIMAC Engineering GmbH in Oberhausen since 1989. The company is designing and building turnkey plants, apparatuses and components for thermal separation tasks and sells their products worldwide.

Since 2004 Dr.-Ing. Habil. J. Maćkowiak is assistant lecturer at the laboratory of fluid separations at TU Dortmund University.

© Prof. Dr.-Ing. Jerzy Maćkowiak

Professional career

1970-1976 Study of mathematics at university Wrocław

1975 Ph.D. at the chair of Prof. Ziołkowski –  „Vater der polnischen Verfahrenstechnik “– 

1976 -1984 Scientific staff member at the chair of Prof. Dr.-Ing. R. Billet "Thermische Stofftrennverfahren" at the Ruhr-Universität-Bochum

1984 Academic director  at this chair with the main task of teaching and research; supervisor of more than 60 Diplom theses and involved in the development of the chair since its establishment in 1976

1989 Executive Director ENVIMAC Engineering GmbH ( former ENVICON)

1991 Habilitation at technical univesity Wrocław.

2010 Nomination as honorary professor of TU Dortmund University


  • Fluiddynamics and mass transfer in tray and packed columns for distialltion, absorption, desorption and gas cooling
  • Humidification and liquid/liquid extraction
  • Thermodynamics of mixtures
  • Behaviour of contactors in non-isobaric processes
  • Heat transfer in packed columns
  • Biological waste gas treatment in biofilters and biological waste water treatment in dived fixed bed reactors


Selected articles and presentations

[1] R. Billet, J. Maćkowiak

“New Method for Design of Packed Column with Random and Stacked Packings for Liquid-Liquid Extraction Processes”

Germ.-Chem.-Eng. 9 (1986) Nr. 1, S. 48-64

[2] R. Billet, Z. Ługowski, J. Maćkowiak

"Optimaler Arbeitsdruck bei der Rektifikation "

Chemie Technik (Heidelberg) 12 (1983), Nr. 11 S. 69 - 76

[3] J. Fischer, U. Heinbuch, V. Landau, J. Maćkowiak

"Dampf-Flüssigkeits-Phasengleichgewichte nach der Gruppenbeitragstheorie von Kehiaian"

Chemie Technik 13 (1983), Heft 6, S. 59 - 64

[4] R. Billet, J. Maćkowiak

"Hydraulic and Mass Transfer Model for High Capacity Liquid-Liquid-Extractors Filled with Stacked Packings "

Int. Solvent Extraction Conf. Proc. Denver (1983), 26. August - 2. September;

ISEC 83, AIChE (ISBN 0-8169-0254-2), Band I, S. 110 - 112;

Selected Papers from ISEC 83, AIChE Symp. Series 1984, Vol. 80, Nr. 238, S. 54 - 64

[5] R. Billet, J. Maćkowiak

"How to Use the Absorption Data for Design and Scale-up of Packed Columns"

Fette, Seifen, Anstrichmittel 86 (1984), Nr. 9, S. 349 - 358

[6] R. Billet, V. Landau, J. Maćkowiak

"Rückvermischung der kontinuierlichen Phase in Rohrkolonnen "

Chemie Technik 13 (1984), Nr. 10, S. 88 – 94

DOI: 10.1021/ie2014982

[7] J. Maćkowiak

"Einsatz von modernen Füllkörpern zur Reduzierung von Schadstoffen aus Abluft und Abwasser "

Staub - Reinhaltung der Luft 50 (1990), S. 221 - 227 

[8] A. Kozioł, J. Maćkowiak

"A new Method for Determining the Efficiency of Tray Columns with Downcomers"

Chem.-Eng. Technolog. Bd. 15( 1992) S. 103-113

[9] A. Kozioł, J. Maćkowiak

"Determination of equilibrium data for sulphur dioxide-water systems in the range of low concentrations of SO2"

International Chemical Engineering, vol. 33, July 1993, No. 3, S. 442 – 449

[10] J. Maćkowiak

"Untersuchungen des gas- und flüssigkeitsseitigen Stoffüberganges in Kolonnen mit strukturierten Packungen "

CIT 71(1999) Nr.: 1+2,  S. 100-104

[11] J. Maćkowiak

"Modellierung des flüssigkeitsseitigen Stoffüberganges in Kolonnen mit klassischen und gitterförmigen Füllkörpern"

CIT 80 (2008) Nr.1+2 S. 57-77

[12] J. Maćkowiak

"Neue Aspekte der Modellierung bei der Fluiddynamik von Packungskolonnen"

CIT 78 (2006) Nr. 8, S.1079-1086


Location & approach

The campus of TU Dort­mund University is located close to interstate junction Dort­mund West, where the Sauerlandlinie A 45 (Frankfurt-Dort­mund) crosses the Ruhrschnellweg B 1 / A 40. The best interstate exit to take from A 45 is “Dort­mund-Eichlinghofen” (closer to South Campus), and from B 1 / A 40 “Dort­mund-Dorstfeld” (closer to North Campus). Signs for the uni­ver­si­ty are located at both exits. Also, there is a new exit before you pass over the B 1-bridge leading into Dort­mund.

To get from North Campus to South Campus by car, there is the connection via Vogelpothsweg/Baroper Straße. We recommend you leave your car on one of the parking lots at North Campus and use the H-Bahn (suspended monorail system), which conveniently connects the two campuses.

TU Dort­mund University has its own train station (“Dort­mund Uni­ver­si­tät”). From there, suburban trains (S-Bahn) leave for Dort­mund main station (“Dort­mund Hauptbahnhof”) and Düsseldorf main station via the “Düsseldorf Airport Train Station” (take S-Bahn number 1, which leaves every 20 or 30 minutes). The uni­ver­si­ty is easily reached from Bochum, Essen, Mülheim an der Ruhr and Duisburg.

You can also take the bus or subway train from Dort­mund city to the uni­ver­si­ty: From Dort­mund main station, you can take any train bound for the Station “Stadtgarten”, usually lines U41, U45, U 47 and U49. At “Stadtgarten” you switch trains and get on line U42 towards “Hombruch”. Look out for the Station “An der Palmweide”. From the bus stop just across the road, busses bound for TU Dort­mund University leave every ten minutes (445, 447 and 462). Another option is to take the subway routes U41, U45, U47 and U49 from Dort­mund main station to the stop “Dort­mund Kampstraße”. From there, take U43 or U44 to the stop “Dort­mund Wittener Straße”. Switch to bus line 447 and get off at “Dort­mund Uni­ver­si­tät S”.

The AirportExpress is a fast and convenient means of transport from Dortmund Airport (DTM) to Dortmund Central Station, taking you there in little more than 20 minutes. From Dortmund Central Station, you can continue to the university campus by interurban railway (S-Bahn). A larger range of international flight connections is offered at Düsseldorf Airport (DUS), which is about 60 kilometres away and can be directly reached by S-Bahn from the university station.

The H-Bahn is one of the hallmarks of TU Dort­mund University. There are two stations on North Campus. One (“Dort­mund Uni­ver­si­tät S”) is directly located at the suburban train stop, which connects the uni­ver­si­ty directly with the city of Dort­mund and the rest of the Ruhr Area. Also from this station, there are connections to the “Technologiepark” and (via South Campus) Eichlinghofen. The other station is located at the dining hall at North Campus and offers a direct connection to South Campus every five minutes.

The facilities of TU Dortmund University are spread over two campuses, the larger Campus North and the smaller Campus South. Additionally, some areas of the university are located in the adjacent “Technologiepark”.

Site Map of TU Dortmund University (Second Page in English).