Integrated reactor for biological cleaning of wastewater

摘要

An integrated reactor for biological cleaning of all sorts of wastewater with biologically removable pollution is compactly designed in one tank. A V - shaped settling chamber (2) is located between a denitrification zone (1) and a nitrification zone (3), which separates the mentioned zones and is used to separate biological sludge from cleaned water by countercurrent sedimentation. The wastewater is fed into the denitrification zone (1), in which a stirrer (10) is installed, designated for thorough mixing of the activated reverse sludge with the wastewater. From there, the mixture of the denitrificated sludge and water flows through a pipe (8) to the opposite wall of the reactor, into the nitrification zone (3). The required amount of oxygen is supplied by an aeration system (9) to the nitrification. The nitrification zone (3) is linked with the settling chamber (2) through a stabilising zone (4), whose lower part at the same time serves as a place for cumulating of the settled sludge. In this part, there is a device (7) installed for draining of the sludge, to which a pump (16) of the reverse sludge is connected, whose delivery ends directly above the level of the denitrification zone (1). The cleaned water mixed with the activated sludge, free of oxygen, flows into the settling area, where the sludge settles and at the same time a lifted layer of sludge is formed, throughout which the cleaned water is strained. The cleaned water flows out through a discharge channel. Where appropriate, it is possible to use the broken scumboards to intensify the whole process.