Animal waste for biodiesel fuel prmiuction should be specially prepared removing impurities and moisture. There was designed the principal technology of waste preparation, when waste churched, moisture and particulates removed. The researches of engine emissions were accomplished, using mixture of fossil diesel foci, Imseed oil and tallow fatty acid methyl esters, and these emissions were compared with emissions of rapeseed oil fatty acid methyl esters. It was determined ifrat fuel composition had no influence for engine work. The least amount of such pollution as NOx. CO, PAH (polycydic aromatic hydrocarbons) and smokeness index was obtained using multi-component fuel containing 30% of fatty acid methyl esters. Estimating multi-component fuel influence for environment it was determined that their environment protection effect was equal to RME.
