Device and method for continuously operation and reinforcement of biomembrane phosphate removing

Abstract

The invention relates to a device and a method for continuously operation and reinforcement of biomembrane phosphate removing. The device is composes of a water inlet tank, a middle water tank and a biological filter tank, which can realize the continuous biological phosphate removing. The biological filter tank adopts the anaerobic/aerobic alternative adhesion growth system, uses the quartz sandas a biological carrier, is formed with a mixed biomembrane flora composed of phosphate accumulating bacteria, common heterotrophic bacteria, nitrobacteria and denitrifying bacterium, applies an adjustable time program to control the water inlet and outlet direction of the reactor and the connection of the reactor and the atmosphere so as to expose the biomembrane alternatively in the anaerobic/aerobic environments and applies the phosphate accumulating bacteria to remove the phosphate in the waste water in the anaerobic phosphate releasing-aerobic phosphate accumulating circulation. The system can simultaneously denitrides and remove the organic matters in the waste water.

Description

technical field [0001] The invention belongs to the biotechnical field of sewage, aquatic biological denitrification and phosphorus removal, and in particular relates to a device and method for continuously operating and strengthening biofilm phosphorus removal. Background technique [0002] Existing biological phosphorus removal technologies mainly include activated sludge method and biofilm method. The activated sludge method has disadvantages such as large sludge output, sludge bulking, nitrate in the return sludge consumes influent organic matter and affects the phosphorus removal effect. In addition, the activated sludge system occupies a large area and has complex operation and management. It is not suitable for small-volume sewage treatment. The high-phosphorus excess sludge generated by the system must be disposed of in time, otherwise it will cause secondary phosphorus release problems. For occasions where the wastewater flow rate is small, it is suitable to use the...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a solution in the prior art because the anaerobic section of the reactor is not sealed, in the continuous operation of the alternating anaerobic / aerobic biological filter treatment system, anaerobic / aerobic alternate A device and method for continuous operation and enhanced biofilm phosphorus removal for the problem of substandard phosphorus content in effluent water

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