Horizontal turntable biological spraying deodorization process and device thereof

Abstract

The invention discloses horizontal turntable biological spraying deodorization process and device. The device comprises a horizontal turntable deodorization device, an aerobic aeration tank, a secondary sedimentation tank, a cyclone separator and a slurry dilution tank; wherein the aerobic aeration tank is sequentially connected with the cyclone separator, the slurry dilution tank and the horizontal turntable deodorization device; and the secondary sedimentation tank is respectively connected with the slurry diluting tank and the horizontal turntable deodorization device. The horizontal turntable deodorization device comprises a deodorization shell, a deodorization turntable, a rotating shaft and a driving motor, the deodorization turntable is internally provided with multiple layers of hanging type hammer ball anti-blocking fillers, which are radially and alternately arranged along the radial direction, the two sides of the turntable are respectively provided with a backwashing pipe,and effluent of the secondary sedimentation tank is used as slurry dilution water and backwashing water, so that self-loosening and desilting of the fillers in the turntable are realized, and finally,the aims of thorough blockage prevention of the fillers and efficient and stable deodorization of the system are achieved. The process and device have the advantages of simple configuration, small occupied area and low power consumption, and can effectively enhance the impact load resistance and environmental adaptability of the system.

Description

technical field [0001] The invention relates to the technical field of deodorization, in particular to a horizontal turntable biological spray deodorization system. Background technique [0002] In recent years, odor nuisance incidents have occurred frequently. In order to solve this problem, box-type biological filtration is currently used to remove odorous substances. This technology mainly uses the physiological metabolism of microorganisms to degrade odorous components, and is suitable for treating low-concentration odors. Since the growth and reproduction of microorganisms requires certain nutrient supply and suitable environmental conditions such as temperature, PH, and humidity, and the degradation process of odorous substances in the biofiltration reaction tank requires a certain space and time, this method also has the disadvantages of large area, micro Environmental monitoring facilities are difficult, dust removal / humidification / acid washing / alkali washing pretrea...

AI Technical Summary

Problems solved by technology

[0005] However, in addition to the activated sludge slurry with its own bacteria, the spray slurry also contains a large amount of suspended solids such as solid granular slurry

Traditional deodorization towers mostly use granular fillers. The filling method in the tower is generally piled up naturally according to the action of gravity. When the system is running, suspended solids such as pulp and slag will be sprayed into the tower together with the activated sludge slurry. The activated sludge slurry itself It is highly viscous, and under the joint action of pulp and slag suspended matter, if the concentration of sludge and suspended matter is too high and the anti-blocking design is not in place, bridging and silting will easily occur on the surface and inside of the filler, and then blockage The gas-liquid mass transfer channel causes the pressure drop of the packing layer to increase rapidly, resulting in channel flow, wall flow and odor short-circuit phenomenon, which seriously affects the deodorization effect, and the continuous and stable operation of the system is challenged

At present, the existing process adopts the front-end slurry filter to simply filter and remove the slag from the slurry, and then the slurry after filtering and removing the slag enters the vertical packed tower as a spray liquid, but this process does not consider the activated sludge and fine suspension in the slurry. The contribution proportion of solids in the deodorization process is not considered, and the key influence of the total concentration of sludge and suspended solids on the plugging of the packing layer is not considered.

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