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Publikācija: Modelling of the Biodegradation Processes in the Biofilters

Publication Type Full-text conference paper published in other conference proceedings
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Modelling of the Biodegradation Processes in the Biofilters
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Authors Kristīna Tihomirova
Sandis Dejus
Linda Mežule
Tālis Juhna
Keywords Natural organic matter, biofilter, mathematical model
Abstract Knowledge about degradation rates of biodegradable dissolved organic carbon (BDOC) is important in order to design, optimize and model the biofiltration processes for drinking water production.The necessary empty bed contact time in biofilters cannot be adequately determined, if the biodegradation rate is not known. This study describes the main proposals for the model optimization based on two year pilot and laboratory scale study results and literature data. The results showed that: (i) there is a positive effect of the temperature and negative effect of the ozonation on the biomass; (ii) biomass concentration decreases as a function of filter depth; (iii) the concentration of organic matter decreases exponentially and (iv) first order kinetic equation was applicable to the observed BDOC removal rates. The described parameters are significant for development of biofilter mathematical model.
Reference Tihomirova, K., Dejus, S., Mežule, L., Juhna, T. Modelling of the Biodegradation Processes in the Biofilters. In: Publications of the IWA 4th Eastern European Young and Senior Water Professionals Conference, Russia, Saint Petersburg, 4-5 October, 2012. Saint Petersburg: 2012, pp.446-454.
ID 17045