Novel micro-aerobic hydrolysis acidification reactor and sewage treatment system

Abstract

The utility model relates to the technical field of sewage treatment, and provides a novel micro-aerobic hydrolysis acidification reactor and a sewage treatment system. The water distribution system, the mixed liquid collection reflux system and the water outlet system are arranged at the upper part of the hydrolysis acidification pool; the precipitable coupling reaction system is arranged in the middle of the hydrolysis acidification pool; the sludge collecting and discharging system and the micro-aerobic system are arranged at the lower part of the hydrolysis acidification pool; wherein the micro-aerobic system can be used for supplying oxygen to the water body in the hydrolysis acidification pool. The anaerobic environment in a traditional hydrolytic acidification system is changed, a micro-aerobic environment is formed, microbial communities in the traditional hydrolytic acidification system are richer, and the activity of hydrolase is higher, so that the hydrolytic acidification efficiency is improved, and the application cost is reduced; and meanwhile, in the application process, the device also has relatively high stability and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a novel micro-oxygen hydrolysis acidification reactor and a sewage treatment system, which can be widely used in the treatment of difficult-to-degrade industrial wastewater. Background Art

[0002] Hydrolysis acidification is the process of using biodegradable enzymes produced by hydrolytic bacteria and acid-producing bacteria in an anaerobic environment to convert large organic matter into small molecules, thereby improving the biodegradability of difficult-to-degrade wastewater. It is widely used in the treatment of difficult-to-degrade industrial wastewater. However, there are disadvantages in the hydrolysis acidification system, such as low biological richness and diversity, and low hydrolase activity, which limit the effectiveness of the hydrolysis acidification system. In order to break through this technical bottleneck, research and development of high-efficiency technology is the key to the further widespread application of the hydrolysis acidification system. Utility Model Content

[0003] The utility model provides a solution to the technical problems of low biological richness and diversity, low hydrolase activity and the like in traditional hydrolysis acidification systems.

[0004] In a first aspect, the utility model provides a novel micro-oxygen hydrolysis acidification reactor, comprising:

[0005] Hydrolysis acidification tank 1;

[0006] A water distribution system, a mixed liquid collection and reflux system and a water outlet system are arranged on the upper part of the hydrolysis and acidification tank 1;

[0007] A precipitable coupled reaction system disposed in the middle of the hydrolysis acidification tank 1; and,

[0008] A sludge collection and discharge system and a micro-aerobic system are provided at the bottom of the hydrolysis and acidification tank 1;

[0009] Among them, the micro-oxygen system can be used to supply oxygen to the water in the hydrolysis acidification tank 1.

[0010] Preferably, the water distribution system comprises a water inlet pipe 2, a water distributor 3 and a water distribution pipe 4 which are connected in sequence; wherein a jet water distribution head 31 is provided at the water outlet of the water distributor 3, and the water distribution pipe 4 extends to the bottom of the hydrolysis acidification tank 1.

[0011] Preferably, the mixed liquid collection reflux system includes a reflux pipe 5 and a reflux pump 6 ; wherein the reflux pump 6 is connected to the water distributor 3 via a pipeline.

[0012] Preferably, the water outlet system includes a water outlet trough 7 and a water outlet pipe 8 which are connected in sequence; wherein the water outlet pipe 8 extends to the outside of the hydrolysis acidification tank 1 .

[0013] Preferably, the precipitable coupled reaction system comprises a packing rack 9, wherein the packing rack 9 is of a frame type.

[0014] Preferably, the sludge collection and discharge system comprises a sludge discharge pipe 10 ; wherein the sludge discharge pipe 10 extends to the outside of the hydrolysis acidification tank 1 .

[0015] Preferably, the micro-oxygen system comprises an aerator 11, wherein the aerator 11 is a liftable microporous aerator.

[0016] Preferably, it also includes a monitoring absorption system arranged on the upper part of the hydrolysis acidification tank 1.

[0017] Preferably, the monitoring absorption system includes a DO monitor 12 , a methane monitor 13 and a methane absorption device 14 .

[0018] In a second aspect, the utility model provides a sewage treatment system for measuring sludge specific resistance, comprising the novel micro-aerobic hydrolysis acidification reactor described in the first aspect.

[0019] In view of the deficiencies in the prior art, the beneficial effects that can be achieved by the utility model are as follows:

[0020] The utility model changes the anaerobic environment in the traditional hydrolysis acidification system by setting up a micro-aerobic system, forms a micro-aerobic environment, makes the microbial community in the traditional hydrolysis acidification system richer, and makes the hydrolase activity higher, thereby improving the hydrolysis acidification efficiency and reducing the application cost.

[0021] Furthermore, the utility model can also greatly improve the stability and safety of the reactor by setting up a monitoring absorption system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of a new type of micro-oxygen hydrolysis acidification reactor.

[0024] In the accompanying drawings, the same reference numerals are used to denote the same components or structures, wherein:

[0025] 1-hydrolysis acidification tank; 2-water inlet pipe; 3-water distributor, 31-jet water distributor; 4-water distribution pipe; 5-reflux pipe; 6-reflux pump; 7-water outlet trough; 8-water outlet pipe; 9-filling rack; 10-sludge discharge pipe; 11-aerator; 12-DO monitor; 13-methane monitor; 14-methane absorption device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0028] In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In order to solve the technical problems of low biological richness and diversity, low hydrolase activity and other shortcomings in the traditional hydrolysis acidification system, this embodiment provides a new type of micro-aerobic hydrolysis acidification reactor, such as Figure 1 As shown, it includes: a hydrolysis acidification tank 1, a water distribution system, a mixed liquor collection and reflux system and a water outlet system arranged at the upper part of the hydrolysis acidification tank 1; a precipitable coupled reaction system arranged in the middle part of the hydrolysis acidification tank 1; and a sludge collection and discharge system and a micro-oxygen system arranged at the lower part of the hydrolysis acidification tank 1; wherein the micro-oxygen system can be used to supply oxygen to the water in the hydrolysis acidification tank 1.

[0030] In this embodiment, by setting up a micro-aerobic system, the anaerobic environment in the traditional hydrolysis acidification system is changed to form a micro-aerobic environment, so that the microbial community in the traditional hydrolysis acidification system is richer and the hydrolase activity is higher, thereby improving the hydrolysis acidification efficiency and reducing the application cost.

[0031] As some preferred implementations, the water distribution system includes an inlet pipe 2, a water distributor 3 and a water distribution pipe 4 connected in sequence; wherein, a jet water distribution head 31 is provided at the outlet of the water distributor 3, and the water distribution pipe 4 extends to the bottom of the hydrolysis acidification tank 1; the mixed liquid collection reflux system includes a reflux pipe 5 and a reflux pump 6; wherein, the reflux pump 6 is connected to the water distributor 3 pipeline, and the reflux pump 6 can make the sewage to be treated have a higher flow rate, and cooperate with the jet water distribution head 31, hydraulic stirring can be completed without external energy consumption; the outlet system includes an outlet trough 7 and an outlet pipe 8 connected in sequence; wherein, the outlet pipe 8 extends to the outside of the hydrolysis acidification tank 1, and the sewage can be discharged from the outlet pipe 8 to the next treatment process after treatment; the precipitable coupled reaction system includes a filler rack 9, the filler rack 9 is filled with fillers, and the fillers can be used as carriers of microorganisms. When the water body in the hydrolysis acidification tank 1 immerses the filler rack 9, the microorganisms on the filler can complete the filtering function of the water body; wherein, the filler frame 9 is a frame type, and during installation, an overall hoisting method can be adopted, and the installation and maintenance are simple and quick; the sludge collection and discharge system includes a sludge discharge pipe 10; wherein, the sludge discharge pipe 10 extends to the outside of the hydrolysis acidification tank 1, and the sludge, aged microorganisms and some impurities in the mixed water will freely settle to the bottom of the hydrolysis acidification tank 1 due to gravity, and can be regularly discharged from the sludge discharge pipe 10 to the next sludge treatment process for disposal under the action of the sludge discharge pump; the micro-oxygen system includes an aerator 11. In specific applications, preferably, the aerator 11 is a liftable microporous aerator. Compared with conventional aerators, the liftable microporous aerator has good aeration effect, saves energy, can be repaired without draining water, is flexible and rotatable, and the aeration head of the aerator 11 can be moved to the water surface for cleaning and replacement.

[0032] In order to ensure the stability and safety of the reactor, this embodiment provides a novel micro-oxygen hydrolysis acidification reactor, such as Figure 1 As shown, it also includes a monitoring and absorption system arranged on the upper part of the hydrolysis acidification tank 1. When implemented specifically, the monitoring and absorption system includes a DO monitor 12, a methane monitor 13 and a methane absorption device 14. The probe part of the DO monitor 12 can extend into the water body in the hydrolysis acidification tank 1. The DO monitor 12 is used to measure the DO (dissolved oxygen) content in the water body in real time. The methane monitor 13 is used to measure the methane concentration in the hydrolysis acidification tank 1 in real time. The methane monitor 13 includes a probe part and a PLC touch part. The probe part is located above the water body in the hydrolysis acidification tank 1. The operation of the reactor can be controlled by manipulating the PLC touch part. The methane absorption device 14 is used to absorb methane.

[0033] Based on the same technical concept as above, this embodiment provides a sewage treatment system for measuring sludge specific resistance, including the above-mentioned novel micro-oxygen hydrolysis acidification reactor, which also has the technical advantages of high hydrolysis acidification efficiency and low application cost.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel micro-oxygen hydrolysis acidification reactor, characterized in that: include: Hydrolysis acidification tank (1); A water distribution system, a mixed liquid collection and reflux system and a water outlet system are arranged at the upper part of the hydrolysis and acidification tank (1); A precipitable coupled reaction system located in the middle of the hydrolysis acidification tank (1); and, A sludge collection and discharge system and a micro-aerobic system are provided at the bottom of the hydrolysis and acidification tank (1); The micro-aerobic system can be used to supply oxygen to the water in the hydrolysis acidification tank (1).

2. The novel micro-oxygen hydrolysis acidification reactor according to claim 1 is characterized in that: The water distribution system comprises a water inlet pipe (2), a water distributor (3) and a water distribution pipe (4) which are connected in sequence; wherein a jet-type water distribution head (31) is provided at the water outlet of the water distributor (3), and the water distribution pipe (4) extends to the bottom of the hydrolysis acidification tank (1).

3. The novel micro-oxygen hydrolysis acidification reactor according to claim 2 is characterized in that: The mixed liquid collection reflux system comprises a reflux pipe (5) and a reflux pump (6); wherein the reflux pump (6) is connected to the water distributor (3) through a pipeline.

4. The novel micro-oxygen hydrolysis acidification reactor according to claim 1 is characterized in that: The water outlet system comprises a water outlet trough (7) and a water outlet pipe (8) which are connected in sequence; wherein the water outlet pipe (8) extends to the outside of the hydrolysis acidification tank (1).

5. The novel micro-oxygen hydrolysis acidification reactor according to claim 1 is characterized in that: The precipitable coupling reaction system comprises a packing frame (9); wherein the packing frame (9) is of frame type.

6. The novel micro-oxygen hydrolysis acidification reactor according to claim 1 is characterized in that: The sludge collection and discharge system comprises a sludge discharge pipe (10); wherein the sludge discharge pipe (10) extends to the outside of the hydrolysis acidification tank (1).

7. The novel micro-oxygen hydrolysis acidification reactor according to claim 1 is characterized in that: The micro-oxygen system comprises an aerator (11), wherein the aerator (11) is a liftable microporous aerator.

8. The novel micro-oxygen hydrolysis acidification reactor according to claim 1 is characterized in that: It also includes a monitoring absorption system arranged on the upper part of the hydrolysis acidification tank (1).

9. The novel micro-oxygen hydrolysis acidification reactor according to claim 8 is characterized in that: The monitoring absorption system comprises a DO monitor (12), a methane monitor (13) and a methane absorption device (14).

10. A novel micro-oxygen hydrolysis acidification sewage treatment system, characterized in that: The invention comprises the novel micro-oxygen hydrolysis acidification reactor as described in any one of claims 1 to 9.

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