Patent ID: 6833074
Filing Date: 2004-12-21
Classification: C02F,Y02W

Abstract:
A method of treating a waste stream, the method comprising the steps of:a. conducting at least a portion of the waste stream to a treatment vessel for treatment comprising contact with a first biological population having a first-biological population profile; b. drawing off a portion of the waste stream to an off-line treatment area; c. controlling the drawn-off portion of the waste stream so as to maintain, in the drawn-off portion, a second biological population having a second-biological population profile different from the first-biological population profile, whereby the second-biological population profile is customized using a sequencing of growth conditions to provide a particular biological profile; and d. returning a fraction of the drawn-off portion to the treatment vessel following contact with the second biological population, the returned fraction including a portion of the second biological population.