| 摘要 |
<p>An apparatus for an ozone-based treatment of polluted water is disclosed. Th e apparatus generally comprises three stages. The first stage is an ozone treatment stag e wherein the polluted water is treated with ozone gas. The second stage is a degassing stage wherein excess undissolved gases are removed from the water whereby the water exitin g the degassing stage is essentially saturated with gases. The last stage of the apparatus is a membrane filtration stage wherein the gas-saturated water generally undergoe s micro--filtration or ultra-filtration. Microbubbles formed during this final stage generally prevent the accumulation of particles and pollutants on the surface of the membranes and/or inside the openings or pores thereof; thereby acting as a self-cleani ng mechanism for the membrane filter.</p> |
