| 摘要 |
<p>This invention relates to a self-regulated apparatus and process for extracting biodegradable constituents from a fluid stream by the action of biomass which consumes or degrades such substances. The process comprises the steps of: a) introducing into a treatment zone at a first volumetric flow rate a liquid influent stream containing at least one constituent which may be reduced in concentration by a biodegradation treatment, the influent stream being characterized by a first mass flow rate of each of the constituents introduced; b) treating the influent stream in the treatment zone to reduce the concentration of the at least one constituent by biodegrading with an effective biomass; c) discharging from the treatment zone a liquid effluent stream at a second volumetric flow rate, the effluent stream being characterized by a second mass flow rate of each of the constituents or by-products thereof; d) making an on-line determination of the first mass flow rate of at least one constituent and the second mass flow rate of the constituent or a by-product thereof; and e) adjusting at least one of either the first mass flow rate or the second mass flow rate in reponse to the determination of step (d).</p> |
