| 摘要 |
<p>In a raw water, in particular waste water purification system, preferably in a pre-purified state, raw water flows through reactors (5, 12) in which biological processes occur. Waste water is led after being pre-purified through a floating grain filter (6) known per se designed as closed filter containers (5, 12) mounted in series, in parallel or in alternation in an exchangeable manner according to the desired purification process. In order to adapt the filters to varying operation conditions, a measurement and control device (48) adjusts the way in which the various filter containers are mounted, continuously or intermittently supplies auxiliary media for the process and/or adjusts the pressure in the filter containers.</p> |
