| 摘要 |
<p>A process for biological treatment of waste water is characterized by the following sequence of steps: mixing of the incoming raw waste water with activated sludge containing a first, chemoorganotrophic biocenosis in an anaerobic preliminary stage (APS); separation of the solution from the activated sludge in an intermediate settling basin (IS); nitrification of the separated solution by means of a second, chemolithotrophic biocenosis in a nitrification stage (NIR) with an aerobic medium; remixing of the nitrified solution with the activated sludge containing the first, chemoorganotrophic biocenosis; common denitrification of the mixture of solution and activated sludge in a denitrication stage (DER) with an anoxic medium; aeration to obtain an aerobic medium; separation of the purified waste water from the activated sludge in a resettling basin (RSB); recycling (C) of the activated sludge to the anaerobic preliminary stage (APS).</p> |
