A floating island sedimentation type ibr bioreactor

Abstract

A floating island sedimentation type IBR bioreactor, which relates to the technical field of sewage treatment devices, a biological reaction area is arranged in the center of the reactor, submersible mixers are evenly arranged inside the biological reaction area, a sedimentation area is arranged around the biological reaction area, and a water inlet pipe One end passes through the sedimentation area and is connected to the aeration pump platform, the other end of the water inlet pipe is provided with a vent pipe, and the center of the aeration pump platform is provided with a closed mud collection well. The invention makes the scale adaptability of the IBR process stronger. It also achieves the purpose of convenient equipment installation, management and maintenance, and uniform aeration in the aeration tank; in addition, to a certain extent, it realizes the flexible use of the settler, saves civil engineering costs, and can achieve uniform mud discharge; the separation efficiency and solid interception rate On the basis of the high IBR three-phase separator, the three-phase separator is further improved. While ensuring the treatment effect, it saves civil engineering units, saves pool capacity, and realizes modular installation.

Description

Technical field: [0001] The invention relates to the technical field of sewage treatment devices, in particular to a floating island sedimentation type IBR bioreactor. Background technique: [0002] 1) Compared with other traditional processes, such as A2O, oxidation ditch process, and IBR process (continuous flow integrated intermittent biological reaction sewage treatment device), the defect exists when the water volume is large: the number of shock wave mass transmitters is large, and the corresponding There are too many aeration pumps, the structure is scattered, and there are problems such as difficult installation, management, and maintenance. The aeration pipeline is long and complicated, with large head loss and high energy consumption. [0003] 2) The IBR biochemical process uses the three-phase separator and the precipitator in combination, and realizes the separation of water and sewage twice through the step-by-step action, so as to ensure the removal effect of s...

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Problems solved by technology

[0002] 1) Compared with other traditional processes, such as A2O, oxidation ditch process, and IBR process (continuous flow integrated intermittent biological reaction sewage treatment device), the defect exists when the water volume is large: the number of shock wave mass transmitters is large, and the corresponding There are too many aeration pumps, the structure is scattered, and there are problems such as difficult installation, management, and maintenance. The aeration pipeline is long and complicated, with large head loss and high energy consumption.

[0003] 2) The IBR biochemical process uses the three-phase separator and the precipitator in combination, and realizes the separation of water and sewage twice through the step-by-step action, so as to ensure the removal effect of suspended particles to the maximum extent, but the three-phase separator and the precipitator in the IBR process are independent It is separate and has the corresponding civil part of the sedimentation unit, but because of the special structure of the three-phase separator, there is useless space at the bottom, which wastes the tank capacity

[0004] 3) The sludge discharge method of the bioreactor is mostly to discharge the sludge in a certain direction of the pool after sedimentation, which belongs to local sludge discharge, and when the treatment scale is too large, the use of the bottom sludge discharge pipe to discharge the sludge will lead to insufficient uniformity

The water inflow into the reaction tank of the sewage treatment plant is not uniform, and it needs to be mixed in the reaction tank for a long time, which increases the kinetic energy, increases energy consumption to a certain extent, and affects the operating efficiency of the sewage plant

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