PhD Defence Eva Kocbek

  • 05 Nov 2021
  • 09:30 - 11:30
  • Mekelweg 5, Senaatszaal
Western Europe
TU Delft & via Live Stream

On Friday 5 November 2021, the PhD Defence and Awarding Ceremony of Ms. Eva Kocbek from Slovenia, will take place. Professor Damir Brdjanovic is her promotor and Dr. Hector Garcia Hernandez her co-promotor.

The title of the thesis is

“A novel approach to sludge treatment using microwave technology”

The defence can also be viewed online via live stream.

09.30 – 09.45              Presentation

10.00 – 11.30              Public defence & Awarding ceremony

Research summary

Sludge transportation costs can represent a large fraction of the expenses associated with municipal and faecal sludge management. These costs can be mitigated through the use of thermal drying approaches to reduce the sludge volume. This thesis described the application of a novel microwave-based pilot-scale unit as an alternative technology for the sanitisation and drying of sludge from municipal wastewater treatment plants and on-site sanitation facilities. The potential economic benefits of volumetric heating, moisture levelling, and increased liquid and vapour migration from the interior to the surface of the product underpins the increasing interest in the use of microwave technology during sludge treatment processes. According to the findings of this study, these factors lead to faster processing times, improved drying rates, and a reduced physical footprint. Furthermore, microwave technology operates as a standalone treatment unit. When coupled with mechanical dewatering techniques and membrane separation technology, it can increase the reliability of the technology employed in the treatment of sludge while recovering valuable resources through an agricultural or thermochemical application such as (co-) combustion. The results of this work demonstrate the strong feasibility of applying microwave-based technology within initiatives designed to protect the environment and safeguard public health.


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