Treatment of waste water using differentiated internal cycle strategies

摘要

Process treats waste water using differentiated internal cycle strategies. In the process, the waste water enters a buffer vessel (2) with circulator. This divides the influx, transferring it to - 1 sequential biological reactor (6 or 7), having - 2 internal cycles. One of these is filled from the buffer with preclarified waste water, forming a slightly-loaded supernatant liquid. During this phase at least, a smaller quantity of concentrated waste water is pumped as sediment from the buffer vessel into the reactor. With circulation shut off, preclarified water is extracted from the top of the buffer.