Our company is a developer and manufacturer of hydrodynamic cavitation equipment and devices based on ultrasonic technologies. Biodiesel is an alternative fuel derived from vegetable oils. The main advantage of biodiesel, which makes it `attractive` for replacement of present fuels, is its ecological purity as well as the relative cheapness. In contrast to fuels derived from petroleum and petroleum products biodiesel by coming in soil or water biodegrades fully and the emission of carbon dioxide by combustion of biodiesel is much lower than to compare with petrodiesel. Furthermore, the use of biodiesel allows its consumers not to depend on world petroleum and petroleum products prices.