THEORETICAL AND EXPERIMENTAL STUDY OF THE PROCESSES 
OF WATER PURIFICATION IN A BIOFILTER

I. G. Duecka and S. V. Pyl'nikb 

UDC 628.353.153:519.67

This paper presents the results of experimental measurements 
of substrate concentrations characterizing the efficiency of polluted 
water purification by a drop biofilter. A model describing the process 
of purification based on the diffusion-kinetic approach is presented. 
A good agreement between the experimental and theoretically calculated 
characteristics of the purification process has been shown. A simple 
semiempirical relation for estimating the operation of the drop biofilter 
is given.

Keywords: biofilter, modeling, film erosion, approximate 
estimates, experiment.
 
aErlangen-Nuremberg University, Erlangen, D-91052, Germany; email: 
Johann.Dueck@uvt.cbi.uni-erlangen.de; bTomsk University, 36 Lenin Ave., 
Tomsk, 634050, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 82, 
No. 2, pp. 273-282, March-April, 2009. Original article submitted July 17, 2007; 
revision submitted June 24, 2008.