| 摘要 |
An apparatus to purify water by filtration in granular filtration media filters that comprises one or several filter housings that are independent but hydraulically interconnected by pipes in series or parallel. Said housings are fastened to a rotating frame that allows the filter housings to be rotated, inverted and violently shaken in order to agitate, disaggregate and separate the granular media particles that are inside said housings to facilitate the cleaning by washing of said granular filtration beds. The apparatus receives the water from a source under pressure and discharges into an elevated tank or into a faucet. The apparatus has coagulant dosing at the entrance of the raw water, a flow limiter to ensure an adequate filtration velocity and disinfectant dosing at the filtered water exit. |
