Abstract: A reactor arrangement 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 in a continuous process. The arrangement comprises at least one reactor with a cylindrical reaction vessel (11) in which at least one reactor a transformation device (100) has been mounted. The vessel (11) comprises at least one inlet port (30) in the vicinity of its bottom wall (18) and at least one outlet port (40) arranged in the vicinity of its upper end portion. Each inlet port (30) is connected to a fluid supply member (300) configured to be submerged below the fluid surface level in a pool or a pond. The fluid supply member (300) comprises at least one inlet opening (301) configured to continuously supply a fluid from the pool or the pond to the vessel (11). Each outlet port (40) is configured to continuously let out the fluid from the vessel (11) to the pool or the pond via the outlet port (40).

Abstract: The invention refers to a flow-promoting device (100; 100; 100?) for performing a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic medium. The flow-promoting device (100; 100; 100?) comprises a ferromagnetic material (5) and a retaining structure (1; 1; 1?), the retaining structure having a compartment (9; 9?) defined by a permeable material (11; 11?). The retaining structure (1; 1; 1?) comprises a top wall (3; 3?) and a circumferential side wall (4; 4?), wherein the top wall (3; 3?) and the circumferential side wall (4; 4?) is formed mainly by said permeable material (11; 11?). The compartment (9; 9?) of the retaining structure (1; 1; 1?) is arranged to contain at least one fluid-permeable solid reaction member.

Abstract: The invention refers to a flow-promoting device (100; 100; 100?) for performing a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic medium. The flow-promoting device (100; 100; 100?) comprises a ferromagnetic material (5) and a retaining structure (1; 1; 1?), the retaining structure having a compartment (9; 9?) defined by a permeable material (11; 11?). The retaining structure (1; 1; 1?) comprises a top wall (3; 3?) and a circumferential side wall (4; 4?), wherein the top wall (3; 3?) and the circumferential side wall (4; 4?) is formed mainly by said permeable material (11; 11?). The compartment (9; 9?) of the retaining structure (1; 1; 1?) is arranged to contain at least one fluid-permeable solid reaction member.