WORK GROUP “MATHEMATICAL MODELLING AND COMPUTER SCIENCES”

Head: Assoc. Professor Ivan Simeonov, PhD

Contacts: +359 2 979 36 14

e-mail: issim@microbio.bas.bg

More information

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STAFF:

[gallery link="file" columns="1" size="medium" targetsize="medium" ids="771"] Assist. Professor Elena Chorukova                                     +359 2  979 31 88              elena@microbio.bas.bg More information Assist. Professor Venelin Hubenov                                      +359 2 979 31 05               vhubenov7@gmail.com More information Researcher Snezhanka Mihaylova                                      + 359 2  979 31 05             snejanka11@avb.bg Researcher Georgi Valevski, Dipl. Eng.                               +359 2) 979 31 21              g.valevski@gmail.com Researcher Vasil Lakov, Dipl. Eng.                                      +359 2  979 31 88              supervas220@gmail.com

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CURENT RESEARCH TOPICS:

• The main research field of the group is the mathematical modeling and optimization of different microbiological processes. The main studied process is the anaerobic biodegradation (ABD) of organic materials and especially organic wastes from different sources. The studied raw materials are from agriculture (energy crops, animal manure, algae and others), food industry (fruits, vegetables, meat, milk byproducts and others), and urban waste (activated sludge). The main area of interest of the team is production of biogas (methane and hydrogen) from organic wastes by ABD in different types of bioreactors and searching for the factors that influence the ABD processes. Best values of these factors are searched after that.
• Another topic that is examined by the group is developing of technologies for ABD of organic wastes along with the ways of intensification of the processes by different pretreatment methods and additives. The laboratory results are used for mathematical modelling and optimization of the ABD processes. On the basis of these models, software sensors are developed in collaboration with French colleagues.
• The group has developed a small pilot-scale biogas plant, where software sensors and sophisticated strategies for bioreactor control are tested. The plant has SCADA system based on PC and industrial PLC controller. An upgrade of pilot-scale biogas plant is planned to make it a two-phase cascade system for simultaneously production of biohydrogen and biomethane.
• The team holds one patent (№ 110699) and one utility model (№ 1814) since 2010 and 2014 respectably.

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PROJECTS:.

1. “New Eco technologies for biodegradation of organic waste with hydrogen and methane production”

Grant DFNI-E02/13 from 12.12.2014 with the National Science Fund, Republic of Bulgaria. Project leader: Assoc. Professor Ivan Simeonov, PhD

1. “ERASMUS+”

Project collaborators: University of Lille, France. Project leader: Assoc. Professor Ivan Simeonov, PhD

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SELECTED PUBLICATIONS:

• Simeonov,, Denchev, D., Kabaivanova, L., Kroumova, E., Chorukova, E., Hubenov, V., Mihailova, S. Different Types of Pretreatment of Lignocellulosic Wastes for Methane Production, Bulgarian Chemical Communications, 2016 (in press).

• Borisov,, Dimitrova, N., Simeonov, I. Mathematical modelling of anaerobic digestion with hydrogen and methane production, Preprints of the 6th IFAC Conference on Foundations of Systems Biology in Engineering, The International Federation of Automatic Control, Magdeburg, Germany, October 9-12, 2016, IFAC-PapersOnLine, Volume 49, Issue 26, 2016, pp. 231–238.

• Chorukova, E., Diop, S., Simeonov, I., Tebbani, S. Modeling and software sensors design for anaerobic digestion process. Ecological Engineering and Environment Protection, 2, 2016, ISSN:1311-8668, 62-72

• Akivanov, Lakov, V., Simeonov, I. Automation of anaerobic biodigestion of organic waste processes with production of hydrogen and methane, Automation and Informatics, 1/2016, pp. 3–8.

• Hubenov, , Denchev, D., Simeonov, I. Influence of C/N ratio on anaerobic digestion of animal manure, Ecological Engineering and Environment Protection, No 3, 2015, pp. 65–73.

• Hubenov V. N., Mihaylova S. N., Simeonov I. S. Anaerobic co-digestion of waste fruits and vegetables and swine manure in a pilot-scale bioreactor. Bulgarian Chemical Communications 47, 3, 2015, 788-792. ISI IF:0.349

• Simeonov,, Hubenov, V., Mihaylova, S. Comparative studies of the anaerobic digestion of fruits and vegetables waste at mesophilic and thermophilic temperatures. C.R. de BAS, 67(5), 2014, pp. 687–692.

• Wang, P., Tian, Y., Kalchev, B., Simeonov, I., Christov, N. Pilot-scale Biogas Plant: Description, Modelling and Composed Recursive Control, Journal of control engineering and applied informatics 15 (2), 2013, pp. 38–45.

• Denchev,, Hubenov, V., Simeonov, I. Microbial diversity in anaerobic digestion of cellulose material at different temperature, Proc. of Int. Conf. “Ecology – interdisciplinary science and practice”, Sofia, 2012, pp. 94–99.

• Simeonov, I., Denchev, D., Kabaivanova, L., Kroumova, E., Chorukova, E., Hubenov, V., Mihailova, S. Different Types of Pretreatment of Lignocellulosic Wastes for Methane Production.