RESEARCH AND AUTOMATION OF BIOLOGICAL REACTORS OF EFFLUENT WITH THE OXYGEN CONCENTRATION CONTROL

Authors

  • A. P. Safonyk National University of Water and Environment Management, Rivne, Ukraine
  • M. I. Klepach National University of Water and Environment Management, Rivne, Ukraine
  • I. M. Targoniy National University of Water and Environment Management, Rivne, Ukraine

DOI:

https://doi.org/10.15588/1607-3274-2017-3-21

Keywords:

Mathematical model, biological treatment, the opposite effect, control of oxygen, automated control.

Abstract

Context. The actual problem of development of mathematical models of processes of wastewater treatment, subject to automatic control was resolved.

Objective to develop a mathematical model of the process of wastewater treatment from biological substances immobilized microorganisms in multistage anaerobic-aerobic method of purification which takes into account the oxidation of organic matter, reproduction and death of bacteria as a set of interaction of various factors, depending on the concentration of dissolved oxygen and pollutants organic matter.

Method. We used the methods of mathematical physics and hydrodynamics to build mathematical models of processes of cleaning fluids, common approaches to building model problems in which some components dominate over others. The mathematical model of biological wastewater treatment was built. It takes into account the changes in the concentrations of pollution, sludge and oxygen in reproduction and the withering away of the bacteria in biological reactors of various types.

Results. The solution of corresponding model problem was found by using functions pdepe environment MatLab. The results of calculations of concentration distribution of contamination, sludge and oxygen cleaning fluid over time were shown. It takes into account the ability of bacteria to multiply and dying.

Conclusions. The experiments confirmed the adequacy of the constructed model. Based on the results, the automated control system was developed. It controls permissible concentration of pollution in wastewater, which provides energy-saving principles of installation.

Author Biographies

A. P. Safonyk, National University of Water and Environment Management, Rivne

Dr. Sc., Associate Professor, Professor of Department of Automation, Electrical and Computer-Integrated Technologies

M. I. Klepach, National University of Water and Environment Management, Rivne

PhD, Associate Professor, Associate Professor of Department of Automation, Electrical and Computer-Integrated Technologies

I. M. Targoniy, National University of Water and Environment Management, Rivne

Postgraduate Student, Department of Automation, Electrical and Computer-Integrated Technologies

References

Sablii L. A. Bahatostupeneva anaerobno-aerobne ochyshchennia vysokontsentrovanykh stichnykh vod, Visnyk Natsionalnoho universytetu vodnoho hospodarstva ta pryrodokorystuvannia, 2009, Vyp. 4, pp. 185–192.

Safonyk A. P., Tarhonii I. M. Kompiuterne modeliuvannia protsesu aerobnoho ochyshchennia stichnykh vod, Problemyi mashinostroeniya, 2016, Vol. 19, No. 2, pp. 31–36.

Kozachek A. V., Avdashin I. M., Luzgachev V. A. Isledovanie matematicheskoy modeli protsessa aerobnoy ochistki stochnyih vod kak stadiya otsenki kachestva okruzhayuschey vodnoy sredyi, Vestn. Tambovskogo gosudarstvennogo tehnicheskogo universiteta, 2014, Tom 19, Vyp. 5, pp. 1683–1685.

Ponkratova S. A., Emelyanov V. M., Sirotkin A. S., Shulaev M. V. Matematicheskoe modelirovanie i upravlenie kachestvom ochistki stochnyih vod, Vestn. Kazanskogo tehnologicheskogo universiteta, 2010, No. 5–6, pp. 76–85.

Bomba A. Ya., Havryliuk V. I., Safonyk A. P., Fursachyk O. A. Neliniini zadachi typu filtratsiia-konvektsiia-dyfuziia-masoobmin za umov nepovnykh danykh. Rivne, Natsionalnyi universytet vodnoho hospodarstva ta pryrodokorystuvannia, 2011, 276 p.

Bomba A., Safonyk A. Mathematical modeling of aerobic wastewater treatment in porous medium, Zeszyty Naukowe WSInf, 2013, Vol. 12, Nr 1, pp. 21–29.

Adetola V., Lehrer D., Guay M. Adaptive estimation in nonlinearly parameterized nonlinear dynamical systems, American Control Conf. on O’Farrell Street. San Francisco, USA, 2011, pp. 31–36.

Andrii Safonyk Mathematical design of process of water treatment by filter-clarifier with layer of hanging up sediment, Communications in Applied Analysis, 2016, 20, pp. 467–478.

Brun R., Kiihni M., Gujer W. et al. Practical idcntifiability of ASM2d parameters-systematic selection and tuning of parameter subsets, Water Research, 2002, No. 36, pp. 4113-4127.

Brune D. Optimal control of the complete-mix activated sludge process, Environmental Technology, 1985, No. 6:11, pp. 467– 476.

Dochain D., Vanrolleghem Р. Dynamical modelling and estimation in wastewater treatment processes. London, IWA Publishing, 2001, 342 p.

Safonyk A. P. Modelling the filtration processes of liquids from multicomponent contamination in the conditions of authentication of mass transfer coefficient, International Journal of Mathematical Models and Methods in Applied Sciences, 2015, Vol. 9, pp. 189–192.

Ilenze M., Gujer W., Mino T. et al. Task group on mathematical modelling for design and operation of biological wastewater treatment, Activated sludge models ASM1, ASM2, ASM2d and ASM3. Scientific and Technical Report 9, IWA, London, IWA Publishing, 2000, 122 p.

Knightes G. D., Peters G. A. Statistical analysis of nonlinear parameter estimation for monod biodegradation kinetics using bivariate data, Biotechnol. Biocng. 69, 2000, No. 2, pp. 160– 170.

Ghai Q. Modeling, estimation and control of biological wastewater treatment plants, Doctoral Theses at NTNU 2008:108 at IliT, Porsgrunn. Telemark University College, 2008, 187 p.

How to Cite

Safonyk, A. P., Klepach, M. I., & Targoniy, I. M. (2017). RESEARCH AND AUTOMATION OF BIOLOGICAL REACTORS OF EFFLUENT WITH THE OXYGEN CONCENTRATION CONTROL. Radio Electronics, Computer Science, Control, (3), 192–197. https://doi.org/10.15588/1607-3274-2017-3-21

Issue

Section

Control in technical systems