search innovation
BIOLOGICAL METHOD OF REDUCING EXCESSIVE GROWTH OF FILAMENTOUS BACTERIA IN ACTIVATED SLUDGE IN WASTEWATER TREATMENT PLANTS
keywords: sewage treatment plants, ecology, bacteria , clean water, environmental engineering,
offer number: 087 and 187
The subject of the offer is a biological method of reducing excessive growth of filamentous bacteria in activated sludge in wastewater treatment plants. The invention uses organisms naturally occurring in the activated sludge - rotifers, which eliminate filamentous bacteria that cause bulking of activated sludge - one of the most prevailing and most serious problems in sewage treatment plants.

The most common way of wastewater treatment is the biological method using organisms naturally occurring in the aqueous environment. They form an activated sludge, consisting mainly of bacteria, protozoa and metazoa representatives. The most important role in the removal of impurities play a bacteria, including filamentous, which uncontrolled growth leads to commonly occurring phenomenon which is foaming and bulking sludge.

This process is one of the most serious operating problems in sewage treatment plants worldwide. Currently used methods of reducing excessive growth of filamentous bacteria consist mainly in dispensing of chemicals (such as synthetic organic polymers and coagulants), and are not always effective. Other disadvantages of chemical methods include the necessity to implement significant changes in the treatment process, the relatively high cost of application, increasing weight of the sediment and the harmful impact on the environment.

However, despite numerous studies aimed at developing new ways of eliminating the uncontrolled growth of activated sludge, the optimal method is still required.

The solution to this problem may be a biological method of filamentous bacteria growth control with use of Lecane rotifers - naturally occurring organisms in activated sludge that feed on bacteria. The offered invention includes both the method of mass culture of rotifers and the method of their use in the reduction of foaming and bulking of activated sludge. The invention may be applied in various types of sewage. Moreover the method allows an analysis of the effectiveness of rotifers in relation to specific deposits.

 

Other advantages of the invention include:

  • high efficiency in elimination of filamentous bacteria, particularly bacteria that are a major cause of activated sludge foaming and bulking - Microthrix parvicella, N. limicola, Type 21N;
  • the applicability of the method in different types of sewage, due to the high resistance of Lecane rotifers to adverse environmental conditions;
  • lack of harmful effects on the environment;
  • improvement of sedimentation properties of sludge;
  • low cost of implementation and application of the method.


The offered solution is covered with two patent applications. Further development of the invention is performed at the Faculty of Biology and Earth Sciences of the Jagiellonian University. Currently, the Centre for Technology Transfer CITTRU is looking for entities interested in licensing and application of the technology described above.

commercial utility: sewage treatment plants
field of science: ecology, environmental engineering, environmental protection
forms of protection: patent
technological maturity: demanding R & D
property rights: Jagiellonian University
variants of cooperation: license, consulting, spin-off company, comercial contract research

information / broker of Jagiellonian University

name and surname: Renata Bartoszewicz, PhD
phone number: +48 12 664 42 08, +48 515 493 518
NEWS
latest information
JU scientists to develop biological agricultural support solutions
The project “Interactions between plants and microorganisms in response to the presence of potentially toxic metals, metalloids and silicon (Si)” by Prof. Katarzyna Turnau from the JU Faculty of Biology won a grant from the Polish National Agency for Academic Exchange. The study aimed at replacing the widespread use of agrochemicals with biological agricultural support solutions will also involve researchers from Slovakia and Austria.
JU students will help people suffering from depression
Therapify is a mobile application designed to help depressed people. It was first conceived by Łukasz Pstrong, a graduate of the AGH University of Science and Technology in Kraków, and developed over the course of the last two years with collaborators from his university, the Jagiellonian University, and SWPS University of Social Sciences and Humanities in Warsaw.
Plakaty Demo Day II +
In January, we complete the project managed by CTT CITTRU as part of the program of the Ministry of Science and Higher Education - Incubator of Innovation +. We supported, among others, 18 research teams selected in the competition, that develop innovative technologies. Thanks to the funds granted by CTT CITTRU and hard work of technology transfer officers, pre-implementation research was financed, which increased the attractiveness of these inventions and investors interest in them. Take look at the gallery of posters for technologies, developed as part of the project. What do you think about it
CITTRU team
Our employees
PARTNERS
Innovation Forum KrakówKlaster Lifescience KrakówWolves SummitPACTTJagiellońskie Centrum Innowacji
Contact
GET IN TOUCH WITH US
Centre for Technology Transfer CITTRU
Jagiellonian University in Kraków - POLAND
ul. Bobrzyńskiego 14,
30-348 Kraków

PHONE:
+48 12 664 42 00
E-MAIL:
cittru@uj.edu.pl
Fundusze EuropejskieMNiSWInkubator InnowacyjnościUnia Europejska