| 摘要 |
<p>The present invention relates to a process for making a filter block cum sediment filter, suitable for use in gravity-fed filtration units, which provides for filtering particulate contaminants and also have relatively high flow rates and life. According to another aspect,the present invention relates to filter blocks cum sediment filter obtained by such process. It is an object of present invention to provide a bound filter block with a sediment filter integrally fitted on its outer surface for use in gravity-fed filtration units. It has been found that when a hemispherical carbon filter block having a sediment filter integrally fitted to its external surface is used for removal of particulate contaminants in the gravity fed-filtration devices,it provides relatively high flow rates and enhanced life.</p> |
