Patent ID: 6395182
Filing Date: 2002-05-28
Classification: B01D,C02F

Abstract:
A method for creating anaerobic conditions in a membrane filtration unit used for water purification, comprising the following steps:1) connecting the membrane filtration unit to a rinsing unit; then 2) passing a rinsing agent from the rinsing unit through the membrane filtration unit so as to create anaerobic conditions in the membrane filtration unit during the initial phase of the water purification process; and 3) passing the water to be purified through the membrane filtration unit, in which anaerobic conditions have thus been created in step 2), wherein the connection between the membrane filtration unit and the rinsing unit is then shut off so that the anaerobic conditions in the membrane filtration unit obtained in step 2) are maintained while the water to be purified is passed through the membrane filtration unit, contact between the water to be purified and outside air being prevented during the water purification process.