Abstract: A reactor for biological purification of waste water includes a reactor vessel having a substantially flat or a round bottom, at least one supply pipe arranged in a lower region of the reactor vessel for feeding the waste water to be purified into the reactor, at least one fluid discharge pipe for discharging purified waste water from the reactor, at least one solid matter discharge pipe arranged in the lower region of the reactor vessel for discharging solid matter from the reactor and at least one diverting means including at least one diagonally extending section. The at least one diverting means is designed and/or arranged so that solids sinking to the bottom of the reactor from the upper region of the reactor are deflected so that the solids settle in a region of the at least one solid matter discharge pipe and are discharged from the reactor through the at least one solid matter discharge pipe.

Abstract: The invention relates to a reactor for anaerobically purifying waster water, especially waste water from the paper industry, comprising a reactor vessel, several inlets arranged in the bottom region of the reactor vessel to feed waste water to be purified into the reactor, at least one outlet for discharging purified water, and at least one sediment drain. One or more inlets are fed by a supply pipe, and several supply pipes are fed by a collecting supply pipe. In order to ensure that waste water to be purified is fed as regularly as possible at the bottom of the reactor vessel, at least the majority of the supply pipes of a collecting supply pipe supply waste water to be purified to a maximum of 10 inlets, and at least the majority of said supply pipes each have a control valve.

Abstract: The invention relates to a reactor for anaerobically purifying waster water, especially waste water from the paper industry, comprising a reactor vessel, several inlets arranged in the bottom region of the reactor vessel to feed waste water to be purified into the reactor, at least one outlet for discharging purified water, and at least one sediment drain. One or more inlets are fed by a supply pipe, and several supply pipes are fed by a collecting supply pipe. In order to ensure that waste water to be purified is fed as regularly as possible at the bottom of the reactor vessel, at least the majority of the supply pipes of a collecting supply pipe supply waste water to be purified to a maximum of 10 inlets, and at least the majority of said supply pipes each have a control valve.

Abstract: A reactor for biological purification of waste water includes a reactor vessel having a substantially flat or a round bottom, at least one supply pipe arranged in a lower region of the reactor vessel for feeding the waste water to be purified into the reactor, at least one fluid discharge pipe for discharging purified waste water from the reactor, at least one solid matter discharge pipe arranged in the lower region of the reactor vessel for discharging solid matter from the reactor and at least one diverting means including at least one diagonally extending section. The at least one diverting means is designed and/or arranged so that solids sinking to the bottom of the reactor from the upper region of the reactor are deflected so that the solids settle in a region of the at least one solid matter discharge pipe and are discharged from the reactor through the at least one solid matter discharge pipe.

Abstract: The present invention relates to a method for cleaning waste water, particularly for the continuous cleaning of waste water in the paper industry, wherein oxygen or an oxygen-containing gas and waste water to be cleaned are delivered to an aerobic reactor, the waste water is brought into contact with aerobic microorganisms in an aerobic reactor in order to degrade impurities contained in the waste water, and the cleaned waste water is delivered out of the aerobic reactor. At least a part of the waste water undergoes a pressure release flotation step before being fed into or after being delivered out of the aerobic reactor for the purpose of at least partial softening. In addition, the present invention relates to a device suitable for carrying out the method according to the invention.