Reactor with nitrification and denitrification function

Abstract

The invention relates to a reactor with nitrification and denitrification function. The reactor comprises an inner barrel, an outer barrel, a sewage inlet, a water inlet, a water outlet, an inner tube, a circular seal head, a flat seal head, a sludge discharging hopper, a filler, an aerating apparatus, a microfiltration membrane separator and an ozone device, wherein the circuit seal head is connected at the upper end of the inner barrel, and the sludge discharging hopper is connected at the lower end of the inner barrel; the inner tube is arranged in the inner barrel, and the aerating apparatus is connected under the inner barrel; the filler is filled in a cavity outside the inner tube; one side of the inner barrel is provided with the sewage inlet, while the other side is provided with the water inlet; the inner barrel is connected with the outer barrel through the water inlet; the upper end of the outer barrel is connected with the flat seal head; the microfiltration membrane separator is arranged in the inner barrel; the upper end of the microfiltration membrane separator is connected with the water outlet, while the lower end is provided with the ozone device; and the lower end of the outer barrel is connected with the sludge discharging hopper. Compared with the prior art, the reactor facilitates biological reaction, has high volume loading and small volume, solves the problem of organic matter blockage of the filtering membrane, and simultaneously sterilizes sewage.

Description

technical field [0001] The invention relates to a reactor, in particular to a reactor with nitrification and denitrification functions. Background technique [0002] The traditional methods of treating difficult sewage are generally activated sludge method, biofilm method, biological fluidized bed and membrane bioreactor. These methods have limited treatment effects on refractory industrial wastewater and fecal sewage, mainly in Reactor design and operation. The activated sludge process occupies a large area, requires high sludge control, and is prone to sludge bulking. The biofilm method uses fixed packing, which is easy to clog and requires frequent backwashing of the packing. The installation of the packing requires a fixed bracket, which is difficult to maintain. The biological fluidized bed uses small particles and relatively high density fillers, which have the disadvantages of high energy consumption and difficulty in uniform distribution of particles. Membrane bio...

AI Technical Summary

Problems solved by technology

[0002] The traditional methods of treating difficult sewage are generally activated sludge method, biofilm method, biological fluidized bed and membrane bioreactor. These methods have limited treatment effects on refractory industrial wastewater and fecal sewage, mainly in Reactor design and operation

The activated sludge process occupies a large area, requires high sludge control, and is prone to sludge bulking

The biofilm method uses fixed packing, which is easy to clog and requires frequent backwashing of the packing. The installation of the packing requires a fixed bracket, which is difficult to maintain

The biological fluidized bed uses small particles and relatively high density fillers, which have the disadvantages of high energy consumption and difficulty in uniform particle distribution.

Membrane bioreactor relying on recoil technology cannot completely solve the problem of derivation and clogging of organic pollutants, and the investment cost and operation and maintenance cost are relatively high

In short, the above-mentioned reactors are basically in a completely aerobic state, and the treatment effect on industrial wastewater and fecal sewage that is difficult to be degraded by aerobic biodegradation is not good.

Furthermore, these reactors all need a secondary settling tank for mud-water separation, which increases the floor area, investment costs and operating costs

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