With the help of a ventilator the polluted air gets in through the equipment bottom and immediately contacts the biological charge. The cleaned air rises and gets out through an aperture made at the top of the equipment. The experiments were carried out under laboratory conditions. An analysis of the biological air cleaning equipment efficiency was carried out with acetone, toluene and xilene changing their concentration in the air. During the experiment the changes of the equipment efficiency were analysed changing the height of the sludge charge.
Industrial plants emit into the atmosphere mixtures of different organic compounds.
Therefore, during the experiments mixtures of organic compounds were used. Dependence of the equipment cleaning efficiency on the charge aeration period was also analysed. The work is devoted to an analysis of ecological and economic parameters of diesel and biodiesel fuel. In the life-cycle of diesel fuel both the consumption of energy and emission of pollutants in the production of synthetic glycerin and soy oil cake are included. The energy consumption was calculated according to the European Union mean values of 1996.