Closed type aeration reactor

Abstract

The invention relates to a closed type aeration reactor. The closed type aeration reactor mainly comprises a reactor, and is creatively characterized in that the reactor has a closed type pool structure, a water inlet is arranged at one end of a pool in the direction of a long axis, and a water outlet is arranged at the other end of the pool; the pool is provided with an emptying valve and a dosing pipe with a valve; a plurality of aeration micropores are distributed on the side wall of the pool and positioned at the side wall of the pool, and the air intake direction of the aeration micropores is perpendicular to the direction of the long axis of the pool; and a suspended filler is arranged in the pool. The closed type aeration reactor has the advantages that by adopting the closed type pool structure, the device is pressurized in the aeration pool, so that the dissolved oxygen in the treated water and the retention time of oxygen can be increased, the utilization efficiency of the dissolved oxygen in the device can be improved so as to achieve the purposes of achieving energy conservation and increasing the economic benefits. The suspended fillers are evenly distributed in the pool, and bubbles are continuously cut, so that the oxygen utilization rate can be improved, the power efficiency can be enhanced, and the removal rate of the COD (Chemical Oxygen Demand) in the sewage can be obviously improved.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to an aeration reactor. Background technique [0002] The aeration tank is a structure that uses the activated sludge method for sewage treatment. A certain sewage residence time is provided in the pool to meet the oxygen required by aerobic microorganisms and the mixing conditions for full contact between sewage and activated sludge. The aeration tank is mainly composed of the tank body, the aeration system and the inlet and outlet Shuikou It consists of three parts. [0003] The current aeration methods mainly include blast aeration and mechanical aeration, and the aeration tank is generally an open structure with a large amount of aeration, and there are common problems such as low dissolved oxygen in aeration and low utilization rate of oxygen. The direct impact of this situation is that the energy consumption is too large, and the operating costs required for general sewage trea...

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Problems solved by technology

[0003] The current aeration methods mainly include blower aeration and mechanical aeration, and the aeration tank is generally an open structure with a large amount of aeration, and there are common problems such as low dissolved oxygen in aeration and low utilization rate of oxygen.

The direct impact of this situation is that the energy consumption is too large, and the operating costs required for general sewage treatment plants will increase accordingly

Faced with today's increasingly high electricity bills, it will directly increase the capital investment in wastewater treatment, causing enterprises to be unable to afford the cost of wastewater treatment projects, or shutting down, or secretly polluting the environment

[0004] Therefore, in view of the common problems of low aeration dissolved oxygen (DO) in domestic aeration tanks, large amount of oxygen required, high power requirements for air supply pipes, pumps and fans, and easy damage, a new type of aeration system was designed and studied. An aeration reactor with high dissolved oxygen and low energy consumption is imperative

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