WASTEWATER ADVANCED TREATMENT APPARATUS AND METHOD OF SEQUENCING BATCH SOIL ACTIVATED SLUDGE PROCESS UTILIZING SLUDGE BUFFER TANK

摘要

In order to supplement the limitation of the time division of the continuous batch activated sludge process, the apparatus for treating wastewater according to the present invention installs a semi-bath (anaerobic-anoxic tank) in front of the batch reactor to treat nitrogen and phosphorus with time. Two parallel batch reactors are installed to continuously treat organic matter and nitrogen oxides. The sludge buffer tank is arranged in a direction parallel to the semi-tank, and the sludge collected after the discharging process of the batch tank is collected by the sludge collector, and then divided into the semi-tank and the sludge buffer tank by the tank. In the semi - batch, the initial high concentration of anaerobic sludge is mixed with the influent of the anaerobic tank to efficiently improve the release of phosphorus. The nitrified water and the sludge are transported to the semi-batch and stirred by the continuous conveyance to improve the denitrification efficiency. The sludge (microorganism) transferred to the sludge buffer tank is introduced into the batch reactor for the balance of the microorganism amount in the batch reactor after it is ignited by the microorganism incubator to the soil microorganism. Thus, the chelating reaction of the soil microorganisms collects odor-inducing substances such as nitrogen and sulfur, which are malodorous substances, to reduce odor. In addition, the apparatus for treating wastewater according to the present invention is provided with a supersonic discharge device utilizing a minimum head difference to avoid an ineffective dead space of a treatment plant structure.