TREATMENT OF WASTEWATER, ESPECIALLY MINE WATER CONTAINING SULFATE AND/OR HEAVY METAL

摘要

The invention relates to a method for treating wastewater, especially mine water containing sulfate and/or heavy metal. The invention proceeds from a device for treating wastewater, comprising a reactor chamber (2), a recirculating device (60) which is substantially arranged in the reactor chamber (2) and is intended for recirculating the recirculation flow (46) of wastewater (10) present in the reactor chamber (2), and a support material (41) arranged in the reactor chamber (2), biomass (45) of a biofilm (44) being immobilized on said support material, and a separator through which the recirculation flow (46) flows and which is arranged in the reactor chamber (2). According to the method of the invention, the quantity of (micro-)organisms competing with the micro-organisms (44) and/or of decomposition products (81) of the (micro-)organisms (180, 181, 182) competing with the micro-organisms (44) in the wastewater (10) present in the reactor chamber (2) and/or in the treated wastewater (17) is determined. A treatment environment of the wastewater (10) in the reactor chamber (2), especially a biofilm (44) is controlled (185, 184) using the quantity of (micro-)organisms competing with the micro-organisms (44) and/or of decomposition products (81) of the (micro-)organisms competing with the micro-organisms (44).