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Water treatment system based on aeration control

A water treatment system and aeration technology, applied in the direction of water/sludge/sewage treatment, water aeration, sustainable biological treatment, etc., can solve the problem of dynamic adjustment of air bubbles, increase of oxygen content in wastewater, and inability to change the fluidization of fillers Speed ​​and other issues, to avoid the effect of increasing energy consumption

Active Publication Date: 2018-12-18
乌海市倍杰特环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it uses an aeration tube with a single pore size, which can significantly increase the oxygen content of wastewater during the aeration process, but it cannot be used for special scenarios such as the fluidization of fillers required for moving bed biofilm reactors. The size of the bubbles is dynamically adjusted, and it is impossible to dynamically change the fluidization velocity of the filler while increasing the oxygen content

Method used

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  • Water treatment system based on aeration control
  • Water treatment system based on aeration control
  • Water treatment system based on aeration control

Examples

Experimental program
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Embodiment 1

[0051] figure 1 Shows a schematic diagram of the water treatment process based on the water treatment system. Such as figure 1 As shown, the water treatment system at least includes a pretreatment unit 1, an oxidation unit 2, a biochemical treatment unit 3, a deep treatment unit 4, and a dosing unit 5. The pretreatment unit reduces the hardness, COD, colloid content and turbidity of the feed water through physical and chemical reactions to improve the efficiency and operational stability of the oxidation unit. The oxidation unit adopts the ozone oxidation process to further degrade COD and improve the biodegradability of the influent water on the basis of ensuring the color removal rate. The biochemical treatment unit adopts the aerated biological filter process and the moving bed biofilm reactor to further degrade COD and ensure the water inlet stability of the advanced treatment unit. The advanced treatment unit is used to remove the salt in the influent water based on the m...

Embodiment 2

[0062] This embodiment is a further improvement of Embodiment 1, and the repeated content will not be repeated.

[0063] Such as image 3 with Figure 4 As shown, the present invention also provides an aerator used in the moving bed biofilm reactor. The aerator 6 is at least composed of an aeration membrane 601, a mounting plate 602 and an air inlet connector 603, wherein the shape of the mounting plate 603 is defined by a rectangular plate shape. At least one air inlet interface is provided on the first mounting surface of the mounting plate. The shape of the aeration diaphragm is defined by a circular arc-shaped curved surface with a certain arc, so that after the aeration diaphragm is fixed on the mounting plate, a gas cavity 604 can be formed between the two. Preferably, the shape of the aeration membrane may be defined by a semicircular arc. A through hole is provided at the position where the air inlet connector is fixed on the mounting plate so that the air inlet connect...

Embodiment 3

[0066] This embodiment is a further improvement of Embodiment 1 and Embodiment 2, and the repeated content will not be repeated.

[0067] The invention also provides an integrated use method of the aerator. Such as Figure 5 As shown, the moving bed biofilm reactor is configured as a working mode in which the anaerobic reaction zone and the aerobic reaction zone are arranged side by side. The wastewater after upstream treatment first enters the anaerobic reaction zone through its water inlet. The anaerobic reaction zone and the good The oxygen reaction zone is connected by pipelines so that the anaerobic treated wastewater can enter the aerobic reaction zone for the first time for reaction, and the wastewater treated by the aerobic reaction zone is discharged out of the moving bed biofilm reactor through the drain. Specifically, the moving bed biofilm reactor at least includes a reactor body 704 divided into an anaerobic reaction zone 702 and an aerobic reaction zone 703 by a par...

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Abstract

The invention relates to a water treatment system based on aeration control. The water treatment system at least comprises a biochemical treatment unit and a control unit used for performing aerationcontrol, wherein a plurality of aerators are built in the biochemical treatment unit in a mode of mutually parallel interval arrangement; the aerators are configured into a work mode of capable of rotating around a rotating shaft thereof so as to change the inclination angle with to the ground; under the condition that the inclination angle is reduced, a plurality of first size of bubbles generated by the aerators and other first size of bubbles are mutually blended in a proportion increase mode so as to form a plurality of second size of bubbles; the mutual ratio of the number of the first size of bubbles and the number of the second size of bubbles is increased along with the increase of the inclination angle. The water treatment system has the advantages that the mixed proportion of different sizes of bubbles is regulated by changing the inclination angle of the aerators; fillers can be maintained at the set fluidization movement speed; meanwhile, the sufficient dissolved oxygen isprovided for microbial growth.

Description

Technical field [0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a water treatment system based on aeration control. Background technique [0002] Moving bed biofilm reactor is also called suspended filler bioreactor, which is used in wastewater biological treatment process with biofilm method as the main process. The moving bed biofilm reactor has the advantages of both the biological fluidized bed and the biological contact oxidation process, and has a good effect of nitrogen and phosphorus removal. In recent years, it has received more and more attention, and the process has been applied Reports in the treatment of industrial wastewater and domestic sewage. In order to enhance the mass transfer efficiency of the biofilm reactor, the experimental design is to fill the biological suspended filler in the biofilm reactor. The specific gravity of the biological suspended filler is close to that of water. It is easy to move fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00
CPCC02F7/00Y02W10/10
Inventor 张建飞元西方周辉鲁喜平
Owner 乌海市倍杰特环保有限公司
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