Advanced sewage treatment device

Abstract

The invention discloses an advanced sewage treatment device which comprises a suction pump, an electric flocculation device and an ozone-flat plate ceramic membrane filtering device, wherein the electric flocculation device and the ozone-flat plate ceramic membrane filtering device are arranged side by side; the electric flocculation device comprises a flocculation tank, an anode plate group, a cathode plate group and a sludge precipitation unit, wherein the anode plate group, the cathode plate group and the sludge precipitation unit are arranged in the flocculation tank; the anode plate group and the cathode plate group are connected with positive and negative electrodes of a power supply respectively to form a loop with the power supply; the sludge precipitation unit is arranged at the bottom of the flocculation tank and is used for collecting generated precipitates; a water inlet is formed in the lower part of the tank wall of one side, far away from the ozone-flat plate ceramic membrane filtering device, of the flocculation tank; a flow guide pipeline is arranged at the upper end of the tank wall, close to one side of the ozone-flat plate ceramic membrane filtering device, of the flocculation tank; the ozone-flat plate ceramic membrane filtering device is used for blowing ozone into water, treating the water through aeration and filtering the water through a flat plate membrane; and the suction pump is used for pumping out water filtered by the flat plate membrane. The device can well remove suspended solids, TP, ammonia nitrogen, turbidity and chromaticity in water, and ensures that bacteria in effluent reach the standard.

Description

technical field [0001] The invention relates to the field of advanced sewage treatment, in particular to a sewage advanced treatment device for removing phosphorus, removing COD, turbidity and meeting the requirements of effluent bacteria. [0002] technical background [0003] With the gradual progress of society, people's requirements for living standards and living environment have gradually increased. Especially in recent years, the country has gradually increased the comprehensive improvement of the water environment, resulting in a significant improvement in the water environment. In our domestic sewage treatment process, the original sewage treatment plant effluent standard has been raised from Class I B in the Discharge Standard of Pollutants for Urban Sewage Treatment Plants (GB8918-2002) to the current Class A A. With the country's comprehensive improvement of the environment and gradually stricter requirements on the water environment, the index has been raised fr...

AI Technical Summary

Problems solved by technology

The existing sewage treatment plants in large and medium-sized cities are basically saturated, mainly facing the problem of upgrading and upgrading for advanced treatment, while small sewage treatment plants or sewage treatment stations guarantee the effectiveness and long-term quality of effluent water or the improvement of water quality indicators There are still some problems, mainly related indicators such as COD (chemical oxygen demand), ammonia nitrogen, chroma, and total phosphorus (TP) in the effluent are not up to standard

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