Unpowered stirring hydrolytic acidification system

Abstract

The utility model relates to an unpowered stirring hydrolytic acidification system, which comprises a hydrolytic acidification pool, a pulse water distributor, a water collecting channel, a combined filler and a perforated sludge discharge system, the pulse water distributor is arranged at the top of the hydrolytic acidification pool and is connected with a pulse water distribution pipeline arranged in the hydrolytic acidification pool; the pulse water distributor is connected with a water inlet pipe, and a perforated sludge discharge pipeline is arranged above the pulse water distribution pipeline. The problem that a traditional hydrolytic acidification system is uneven in water distribution is solved, the traditional hydrolytic acidification system only adopts a water distribution pipe to conduct multi-point water distribution, water flow is slow, and sediment is prone to being deposited at the bottom of a pool, the pulse water distributor is adopted to conduct water distribution, meanwhile, the hydraulic stirring effect is achieved, sediment at the bottom of the pool is prevented from being deposited, and meanwhile the energy utilization rate is increased; hydraulic static pressure sludge discharge is adopted, power equipment is not needed for sludge discharge, and the overall energy consumption of the system is reduced; and the added combined filler increases the attachment effect of microorganisms and improves the hydrolytic acidification effect.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a non-powered stirring hydrolysis acidification system. Background Technology

[0002] In wastewater treatment processes, pretreatment, as an indispensable upstream treatment step, plays an irreplaceable role in the downstream biological and advanced treatment of wastewater. Pretreatment processes have a long history of development, evolving into various models through the collective efforts of countless water treatment engineers. However, due to the characteristics of pollutants in wastewater, hydrolysis acidification, as a treatment process that effectively improves the biodegradability of wastewater, is highly effective for pollutants that are difficult to biochemically treat. Therefore, hydrolysis acidification plays a crucial role in the pretreatment of recalcitrant wastewater.

[0003] Existing hydrolysis acidification processes mostly employ traditional multi-point or single-point water distribution, resulting in poor hydraulic flow and ineffective hydraulic stirring. Alternatively, stirring devices may be required within the tank to prevent sediment buildup in the hydrolysis acidification system, leading to high energy consumption during daily operation. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems. This application proposes a non-powered stirring hydrolysis acidification system, which uses a pulse water distributor to distribute water while also performing hydraulic stirring to prevent siltation at the bottom of the tank. This solves the problem of needing to add stirring equipment in traditional hydrolysis acidification processes and reduces energy consumption during the treatment process. For sludge in the hydrolysis acidification system, the sludge discharge method is hydraulic static pressure sludge discharge, which requires no additional power equipment and no additional energy consumption. The combined packing material used has good water and air distribution performance, is easy to form a film, and has a good hydrolysis acidification effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a non-powered stirring hydrolysis acidification system, comprising a hydrolysis acidification tank, a pulse water distributor, a water collection channel, a combined packing material, and a perforated sludge discharge system. The pulse water distributor is installed at the top of the hydrolysis acidification tank and is connected to a pulse water distribution pipe disposed within the hydrolysis acidification tank. The pulse water distributor is connected to an inlet pipe. The hydrolysis acidification tank is equipped with a perforated sludge discharge system, which includes perforated sludge discharge pipes and a main sludge discharge pipe. The perforated sludge discharge pipes are evenly distributed inside the hydrolysis acidification tank, and the main sludge discharge pipe connected to the perforated sludge discharge pipes is located outside the hydrolysis acidification tank. A solenoid valve is installed on the main sludge discharge pipe. The combined packing material is located in the middle of the hydrolysis acidification tank, in the upper area of ​​the pulse water distribution pipes and the perforated sludge discharge system, and in the lower area of ​​the water collection channel.

[0006] Furthermore: the hydrolysis acidification tank is provided in multiple sets, with two sets forming one tank. The entire structure is made of concrete or steel. The bottoms of the two sets of hydrolysis acidification tanks are connected, and the tops share a common water collection channel.

[0007] Furthermore: the water collection channel is located between the two sets of hydrolysis acidification tanks, and water collection weirs are provided on both sides of the water collection channel, with an outlet pipe at one end of the water collection channel.

[0008] Furthermore: the perforated sludge discharge pipe has a diameter of 30mm and is arranged at a 45° angle on both sides of the pipe with a spacing of 300mm. The perforated sludge discharge pipe is arranged according to the tank structure of the hydrolysis acidification tank.

[0009] Furthermore, the top of the hydrolysis acidification tank is provided with a manhole and an observation hole, and the hydrolysis acidification tank is also equipped with a mud level gauge.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention employs a pulse water distributor, solving the problem of uneven water distribution in traditional hydrolysis acidification systems. While distributing water, it also acts as a stirrer, preventing sludge accumulation at the bottom of the tank and improving energy efficiency. Perforated sludge discharge pipes are evenly distributed at the bottom of the hydrolysis acidification tank, using hydraulic static pressure for sludge discharge, eliminating the need for power equipment and reducing overall system energy consumption. A solenoid valve is installed on the main sludge discharge pipe, and a sludge level gauge is installed inside the hydrolysis acidification tank. The electric valve on the main sludge discharge pipe is adjusted according to the sludge volume to control the sludge concentration in the hydrolysis acidification tank. A combined packing material is installed in the middle of the hydrolysis acidification tank, providing excellent water and air distribution performance, facilitating biofilm formation, and enhancing the hydrolysis acidification effect. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for more clearly illustrating the technical solutions in the embodiments of this utility model or the prior art. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a top view of the overall structure of this utility model;

[0014] Figure 2 This is a plan view of the hydrolysis acidification tank of this utility model;

[0015] Figure 3 This is a plan view of the interior of the hydrolysis acidification tank of this utility model (top view).

[0016] Figure 4 This is a cross-sectional view of the main view of the hydrolysis acidification tank of the utility model.

[0017] In the diagram: 1-Hydrolysis acidification tank, 2-Pulse water distributor, 3-Pulse water distribution pipe, 4-Perforated sludge discharge pipe, 5-Water collection channel, 6-Combined packing, 7-Inlet pipe, 8-Manhole, 9-Observation hole, 10-Outlet pipe, 11-Solenoid valve, 12-Sludge discharge main pipe. Detailed Implementation

[0018] To enable those skilled in the art to better understand and implement the technical solution of this utility model, the present utility model will be further described below with reference to specific embodiments. However, the embodiments described are only for illustration and are not intended to limit the present utility model.

[0019] like Figures 1-4 As shown, the hydrolysis acidification tank 1 is divided into two groups, which are rectangular in shape and connected at the bottom. The top of the two groups of tanks is a water collection channel 5, and water collection weirs are provided on both sides of the water collection channel 5. The water collection weirs are adjusted to make the water output from the two tanks uniform. One end of the water collection channel 5 is provided with a water outlet pipe 10. The sewage in the hydrolysis acidification tank 1 is discharged from the tank through the water outlet pipe 10. The top of the hydrolysis acidification tank 1 is provided with a pulse water distributor 2. The pulse water distributor 2 is connected to the water inlet pipe 7. The sewage at the front end enters the pulse water distributor 2 through the water inlet pipe 7 and then enters the hydrolysis acidification tank 1. The pulse water distributor 2 is connected to the pulse water distribution pipe 3 located at the bottom of the hydrolysis acidification tank 1. The pulse water distribution pipe 3 is located below the perforated sludge discharge pipe 4 to avoid sludge accumulation at the bottom of the tank. The pulse water distribution pipe 3 and the pulse water distributor 2 are grouped to serve different ranges.

[0020] Perforated sludge discharge pipes 4 are installed at the bottom of the hydrolysis acidification tank 1. Like the pulse water distributor 2, the perforated sludge discharge pipes 4 are grouped to serve different ranges. The perforated sludge discharge pipes 4 in a single group of hydrolysis acidification tank 1 are connected to the sludge discharge main pipe 12 for sludge discharge. The sludge discharge action is completed by opening and closing the solenoid valve 11 installed on the outside of the hydrolysis acidification tank 1 on the sludge discharge main pipe 12. The perforated sludge discharge pipes 4 are evenly arranged at the bottom of the hydrolysis acidification tank 1, located above the pulse water distribution pipes 3. Through the sludge discharge main pipe 12, the sludge in the hydrolysis acidification system 1 is discharged from the hydrolysis acidification system by the action of hydraulic static pressure. No additional power is required for sludge discharge.

[0021] The top of the hydrolysis acidification tank 1 has a manhole 8 and an observation hole 9; the hydrolysis acidification tank 1 also has a sludge level gauge, and the electric valve on the sludge discharge main pipe 12 is adjusted according to the amount of sludge to control the sludge concentration in the hydrolysis acidification tank 1.

[0022] The perforated sludge discharge pipe 4 has a diameter of 30mm and is arranged at a 45° angle on both sides of the pipe with a spacing of 300mm. The perforated sludge discharge pipe 4 is arranged according to the pool structure of the hydrolysis acidification tank 1.

[0023] The combined packing material 6 is a pre-made packing material, which is installed in the main reaction zone in the middle of the hydrolysis acidification tank 1. It is located in the upper area of ​​the pulse water distribution pipe 3 and the perforated sludge discharge system and the lower area of ​​the water collection channel 5. It has good water and air distribution performance, is easy to form a film, and can increase the attachment area of ​​microorganisms, thereby enhancing the treatment effect of the hydrolysis acidification system.

[0024] This invention solves the problem of uneven water distribution in traditional hydrolysis acidification systems. Traditional systems only use water distribution pipes for multi-point water distribution, resulting in slow water flow and easy siltation at the bottom of the tank. However, by using a pulse water distributor, water distribution also serves as hydraulic stirring, preventing siltation at the bottom of the tank and improving energy efficiency. The hydraulic static pressure sludge removal system eliminates the need for power equipment, reducing the overall energy consumption of the system. The added combined packing material enhances the adhesion effect of microorganisms and improves the hydrolysis acidification effect.

[0025] By implementing and arranging this utility model, the hydrolysis acidification process in the biological pretreatment process can be improved in quality and efficiency, energy consumption can be reduced, and treatment efficiency can be improved through process optimization.

[0026] All content not described in detail in this utility model is prior art.

[0027] It should be noted that the above descriptions are all part of the structure of this utility model. Without departing from the technical principles of this application, those skilled in the art can combine the technical solutions in the above embodiments, or make equivalent changes or substitutions to the relevant technical features. Any changes or equivalent substitutions made within the technical concept and / or technical principles of this application will fall within the protection scope of this application.

Claims

1. A non-powered stirring hydrolysis acidification system, comprising a hydrolysis acidification tank (1), a pulse water distributor (2), a water collection channel (5), a combined packing material (6), and a perforated sludge discharge system, characterized in that: The pulse water distributor (2) is installed on the top of the hydrolysis acidification tank (1). The pulse water distributor (2) is connected to the pulse water distribution pipe (3) set in the hydrolysis acidification tank (1). The pulse water distributor (2) is connected to the inlet pipe (7). The hydrolysis acidification tank (1) is equipped with a perforated sludge discharge system. The perforated sludge discharge system includes a perforated sludge discharge pipe (4) and a sludge discharge main pipe (12). The perforated sludge discharge pipe (4) is evenly arranged inside the hydrolysis acidification tank (1). The sludge discharge main pipe (12) connected to the perforated sludge discharge pipe (4) is located outside the hydrolysis acidification tank (1). The sludge discharge main pipe (12) is equipped with a solenoid valve (11). The combined packing (6) is located in the middle of the hydrolysis acidification tank (1), in the upper area of ​​the pulse water distribution pipe (3), the perforated sludge discharge system and the lower area of ​​the water collection channel (5).

2. The non-powered stirring hydrolysis acidification system according to claim 1, characterized in that: The hydrolysis acidification tank (1) is provided in multiple sets, with two sets forming one tank. The whole tank is made of concrete or steel structure. The bottoms of the two sets of hydrolysis acidification tanks (1) are connected, and the tops of the two sets of hydrolysis acidification tanks share a common water collection channel (5).

3. The non-powered stirring hydrolysis acidification system according to claim 2, characterized in that: The water collection channel (5) is located between the two sets of hydrolysis acidification tanks (1). Water collection weir plates are provided on both sides of the water collection channel (5), and a water outlet pipe (10) is provided at one end of the water collection channel (5).

4. The non-powered stirring hydrolysis acidification system according to claim 1, characterized in that: The perforated sludge discharge pipe (4) has a diameter of 30 mm and is arranged at 45° above both sides of the pipe with a spacing of 300 mm. The perforated sludge discharge pipe (4) is arranged according to the pool structure of the hydrolysis acidification tank (1).

5. The non-powered stirring hydrolysis acidification system according to claim 1, characterized in that: The top of the hydrolysis acidification tank (1) is provided with a manhole (8) and an observation hole (9), and the hydrolysis acidification tank (1) is also provided with a mud level gauge.

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