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MSc. Marie Vojtíšková

20170923_143614 (edited 18.10.17 13:39:41)

Thesis topic:

Change of carbon and nitrogen oxidation state during post-aeration of digested sludge

Motivation

Wastewater treatment is inherently linked with sludge production. Although sludges represent only 1 to 2% of the volume of treated wastewater, they contain 50 to 80% of the original contamination (including toxic chemical compounds or heavy metals) and pathogenic micro-organisms (viruses, bacteria) that can return into the aquatic cycle and thus endanger the environment and also human health. Therefore, it is necessary to pay particular attention to sludges and to improve the stabilization processes.

Solution

Post-aeration of digested sludge is one option which combines the advantages and suppresses the disadvantages of commonly used aerobic and anaerobic stabilization. As some studies suggest by introducing the sludge to aerobic conditions the decomposition of organic matter hard to degrade in a single anaerobic stage is deepened. It is also possible to remove ammonia with a great efficiency and thereby reduce the amount of nitrogen recycled in the whole wastewater treatment process. Improvement of sludge properties, particularly dewaterability, is one of the most mentioned effects of post-aeration. Reduction of the amount of sludge that must be dewatered and disposed could be a huge advantage of this process and could make it attractive for countries where the sludge disposal costs are high.


Education

  • 2013-2015: Master study: UCT Prague, FTOP, Department of Water technology and environmental engineering, diploma thesis: „Biodegradability of selected sweeteners in the aquatic environment“
  • 2010-2013: Bachelor study: UCT Prague, FTOP, Department of Water technology and environmental engineering, bachelor thesis: “Comparison of basic methods determining biodegradability of organic substances in soil and aquatic environments“
  • 2007-2010: High school: Gymnázium Voděradská, graduation 2010

Participation on teaching

  • Laboratory of Water Analysis
  • Laboratory of Water technology

Publications

Presentations:

  • M. Vojtiskova, M. Di Marco, B. Satkova, P. Jenicek, Postaeration of the Digested Sludge and its Potential Benefits, in: ICETI 2018, Prague, November 2018, pp. 136-142.
  • Drechlser, M. Vojtiskova, Innovative technology for laundry wastewater reuse, in: Interclean Amsterdam 2018, May 2018, Netherlands.
  • Jenicek, B. Satkova, M. Vojtiskova, Post-aeration as a tool for improval of digested sludge quality, in: Sludge Management in Circular Economy, Rome, Italy, May 2018, pp. 277-279.

Posters:

  • Vojtiskova, P. Jenicek, Effect of post-aeration on the quality of digested sludge, in: 15th IWA World Conference of Anaerobic Digestion; October 2017, Beijing, China
Updated: 30.5.2019 13:02, Author: Lucie Pokorná

Information

Supervisor:
Prof. Ing. Pavel Jeníček, CSc.

Year of inscription:
2015

E-mail:
Marie.Vojtiskova@vscht.cz

Phone:
+420 220 443 230

Room:
BS 104

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