Biological rotating disk sewage treatment equipment

Abstract

The invention discloses biological rotating disk sewage treatment equipment, which belongs to the technical field of sewage treatment equipment. The treatment equipment comprises aerobic biological rotating disk treatment equipment, anaerobic biological rotating disk treatment equipment and a filtering device, wherein the water outlet of the aerobic biological rotating disk treatment equipment is connected with the water inlet of the anaerobic biological rotating disk treatment equipment; and the filtering device is arranged at the tail end of the anaerobic biological rotating disk treatment equipment. In the embodiment of the invention, the biological rotating disk sewage treatment equipment having an integrated structure is formed by organically combing the aerobic biological rotating disk treatment equipment, the anaerobic biological rotating disk treatment equipment and the filtering device and performs aerobic, anaerobic, precipitation and filtration treatment on sewage in a segmented way, so that multiple functions such as removal of organic pollutants, denitrification, precipitation, filtration and the like can be realized at the same time, high quality of discharged water is ensured and chemical oxygen demand (COD), total nitrogen and suspended matters are stable and meet standards; and the treatment equipment has the advantages of small floor area, small investment in capital construction, easy management and low operating cost.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a biological turntable sewage treatment equipment used for sewage treatment. Background technique [0002] The biological turntable currently used in the field of sewage treatment is a wall-moistening rotary sewage treatment equipment. Through the slow rotation of the rotating shaft, the disc made of special material is driven to contact with air and sewage alternately, so that a layer of growth bacteria is attached to the disc. A large number of microbial biofilms, organic pollutants and nitrogen and phosphorus in sewage are adsorbed and degraded by biofilms. The biological turntable is mainly composed of a driving device, an oxidation tank, a disc, a rotating shaft and a top cover. The biological turntable process has the advantages of high microbial concentration, impact load resistance, low power consumption, less sludge production, and simple operation and maintena...

AI Technical Summary

Problems solved by technology

[0011] A large number of theoretical studies and engineering practice have proved that the biological turntable process has unique advantages in the removal of organic pollutants and ammonia nitrogen. However, due to the insignificant denitrification effect of the existing biological turntable equipment, the removal efficiency of total nitrogen is limited; During the process, the aging biofilm will continue to fall off and flow out with the water body, which will easily cause the problem of increased suspended solids in the effluent

The existing solution is to install a sedimentation device after the biological turntable, which directly leads to an increase in the area occupied by the treatment equipment, infrastructure investment and operating costs

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