An auxiliary reactor for biological or chemical transformation

An auxiliary reactor for performing, by means of at least one solid reaction member(s), a biological or chemical transformation, or physical or chemical trapping from or release of agents to a fluidic media, said auxiliary reactor being adapted for being connected to a main reactor, said auxiliary reactor comprising a cylindrical reaction vessel having a first end part, a second end part, and an outer wall comprising an outer surface and an inner surface between these parts, in which auxiliary reactor a transformation device has been mounted, said transformation device comprising

• a flow distributor having an essentially cylindrical shape, a first essentially flat surface, a second essentially flat surface, and a peripheral wall having an essentially circular cross-section, at least one fluid medium inlet located in vicinity of the center of said first and/or second surface, said inlet being adapted for receiving fluid medium and optionally being adapted for receiving initially suspended solid reaction members, at least one fluid medium outlet permeable for said fluid medium but impermeable for solid reaction members, said outlet(s) being located on said peripheral wall, a driving shaft located on said first surface for enabling rotation or oscillation of the flow distributor, and at least one confinement wherein said solid reaction member(s) can be trapped and said transformation is performed;
• and
• a means for rotating and/or oscillating the device;
• characterized in that said auxiliary reactor further comprises:
• a) a feed conduit adapted for being connected to an outlet port of said main reactor;
• and
• b) a return conduit adapted for being connected to an inlet port of said main reactor.