NOVELTY - A wastewater treatment process involves providing a discrete acclimation bioreactor system in selectively interruptible fluid flow connection with a discrete effluent hydrolysis system, such that the flow of desired microorganisms from the bioreactor system to the hydrolysis system is regulated independently from an effluent feed flow through the hydrolysis system via an integrated process-controlled intermediate membrane bioreactor system; and providing, into the hydrolysis system, a regulated supply of acclimated inoculum to maintain sufficient levels of a desired microbial population.    USE - The wastewater treatment process is used for removing undesired impurities from an effluent feed. (Claimed)    ADVANTAGE - The wastewater treatment process provides enhanced process efficiency due to less process variability. The process facilitates significant improvements in the enhancement of microbial population adaptability and performance efficiency as well as drastically decreasing the usual acclimation time necessary by 75% when compared with activated sludge wastewater treatment processes.    DETAILED DESCRIPTION - A wastewater treatment process for removing undesired impurities from an effluent feed, comprises:    (A) providing a discrete acclimation bioreactor system for developing a desired acclimated microbial population inoculum, where the bioreactor system is in selectively interruptible fluid flow connection with a discrete effluent hydrolysis system, such that the flow of desired microorganisms from the bioreactor system to the effluent hydrolysis system is regulated independently from an effluent feed flow through the hydrolysis system via an integrated process-controlled intermediate membrane bioreactor system; and    (B) providing, into the hydrolysis system, a regulated supply of acclimated inoculum from the acclimation bioreactor system to maintain sufficient levels of a desired microbial population to effect COD removal of 50-100% from the supply of effluent flow from which undesired impurities are to be removed within the hydrolysis system.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of a membrane bioreactor operating configuration.    Stripped gas liquor feed tank (1)    Membrane bioreactor recirculation tank (2)    Membrane bioreactor receiving tank (3)    Membrane modules (4)