Institute of Horticulture, Viticulture and Winemaking of Tbilisi offer biological method purification water surface from oil spill, various industrial, household and other sewage water and to create experimental purification device to get chemically clean water free from dissolved contaminated substances.

Based on our researches using mineral perlit as adsorbent (nozzle) and high active microorganisms in the water purification process we can clear all kind of polluted water. The only thing is to take into account the chemical structure of the sewage, to prepare microorganisms and its immobilization onto nozzle.