Interface convection inducing bioreactor and applications thereof

Abstract

The present invention discloses an interface convection inducing bioreactor and applications thereof. The interface convection inducing bioreactor comprises an inlet pipe, a water distribution device, a fermentation induction zone, a purified water outlet, a gas collection bag and a gas discharge pipe, wherein the water distribution device comprises a distributor and a structured filler, the fermentation induction zone is provided with a diversion belt and pulse pipes, the diversion belt is a helical and coiled metal member, the pulse pipe is introduced along the tangential direction of the inner wall of the fermentation induction zone, the included angle between any two pulse pipes is 90 DEG or 180 DEG, the diameter D5 of the diversion belt is equivalent to the inner diameter D1 of the induction zone, the belt width D6 is 10-20% of the D5, the height difference H4 between the layers formed through helical rotation of the diversion belt is 1/10-1/4 of the height H1 of the induction zone. According to the present invention, the regulation on the granular sludge interface morphology and the self-coagulation effect are utilized to reduce the biomass loss along with the liquid removing so as to reduce the use of the subsequent sedimentation tank, the aeration tank and the related equipment and the investment operating cost.

Description

technical field [0001] The invention specifically relates to an induced interface convection bioreactor and a sewage treatment process related thereto, belonging to the technical field of environmental protection equipment. Background technique [0002] In the process of sewage treatment, under the condition of high-load operation of the bioreactor, due to the strong turbulence of multiple convective flows, the high flocculation and high shear force generated by it destroy the structure of the activated granular sludge, causing the sludge to gradually Crack and disperse into small particles. The spallation of small particles increases the effective interface mass transfer area, but if effective control measures cannot be taken, the disordered splitting of particles will lead to being carried out with the water flow, resulting in the loss of biomass and the instability of bed operation . The efficiency of converting sewage into clean energy mainly depends on the effective b...

AI Technical Summary

Problems solved by technology

[0003] Most of such devices currently in operation need to add a secondary sedimentation tank process downstream, and recover the granular sludge brought out with the liquid through the external circulation reflux method. This method generally has a long process route, complicated operation control, and equipment investment and cost. high maintenance costs

There are also devices that use the so-called internal circulation method. The essence is still to connect the secondary settling tank in series outside the main device, but the split equipment is integrated. The main body of the reactor and the settling tank are still separated by a clear wall, and improper design and handling can easily cause Return mixed flow of water body before and after treatment, reducing treatment efficiency

The processing capacity of the batch fermentation devices currently in operation is limited, and the continuous fermentation devices are either inoperative or unstable, and the conversion of sewage and the output of energy and gas need to be improved

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