CN219217769U

CN219217769U - Ammonia nitrogen wastewater treatment equipment

Info

Publication number: CN219217769U
Application number: CN202223253456.8U
Authority: CN
Inventors: 付耀光; 齐鑫山; 张锦东; 李晋枝; 李文杰
Original assignee: Zezhou County Hemei Environmental Protection Technology Co ltd
Current assignee: Zezhou County Hemei Environmental Protection Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-20
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to ammonia nitrogen wastewater treatment equipment. The novel ammonia nitrogen wastewater treatment equipment comprises a neutralization reaction tank and a stripping tank, wherein sodium hydroxide is added in the neutralization reaction tank, a neutralization water outlet and a stirring mechanism are arranged in the neutralization reaction tank, a stripping water inlet and a stripping water outlet are formed in the stripping tank, the neutralization water outlet of the neutralization reaction tank is communicated with the stripping water inlet of the stripping tank through a horizontal connecting pipeline, an aeration disc is arranged in the bottom of the stripping tank and is communicated with an external blower through an air pipeline, and an empty pipe check valve is arranged on the air pipeline. The equipment has compact treatment process, simple operation, low maintenance cost and small occupied area, has good practical application value and has important significance for cost reduction and synergy.

Description

Ammonia nitrogen wastewater treatment equipment

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to the technical field of ammonia nitrogen wastewater treatment, and specifically relates to ammonia nitrogen wastewater treatment equipment.

Background

Along with the rapid development of industries such as chemical fertilizers, petrochemical industry and the like, the amount of high ammonia nitrogen wastewater generated by the rapid development is increased, and how to treat the high ammonia nitrogen wastewater becomes one of the key problems of research in the industry. At present, the ammonia nitrogen wastewater treatment method mainly adopts a biological denitrification method, but when the ammonia nitrogen quantity is more than 100mg/L, the ammonia nitrogen wastewater enters a biochemical system to inhibit microbial production, so that the wastewater treatment effect is reduced, a large amount of carbon sources are required to be externally supplemented for improving the wastewater treatment effect in the biological denitrification process, the production treatment cost is increased by phase change, and the biological denitrification has the defects of large occupied area, multiple dosing agent types, high operation cost and the like.

Disclosure of Invention

The utility model aims to solve the problems of high production and treatment cost, large occupied area, multiple types of added medicaments and high operation cost of the traditional biological denitrification method, and provides novel ammonia nitrogen wastewater treatment equipment.

The utility model is realized by adopting the following technical scheme:

the utility model provides an ammonia nitrogen wastewater treatment equipment, including throwing in neutralization reaction pond, the stripping pond, neutralization reaction pond is equipped with the neutralization delivery port, be used for stirring the rabbling mechanism of sodium hydroxide and waste water (rabbling mechanism is for the person skilled in the art can obtain through conventional means, in the time of the concrete implementation, rabbling mechanism includes mixer and mount, the mount is fixed in the top pond mouth department of neutralization reaction pond, the mixer includes the motor and is fixed in the epaxial stirring vane of motor, the motor is fixed in on the mount, stirring vane stretches into in the neutralization reaction pond), the stripping pond is equipped with the stripping water inlet that is located the stripping pond upper portion and is located the stripping water gap of stripping pond lower part, neutralization delivery port and the stripping water inlet of stripping pond are through horizontal connecting pipeline intercommunication, the aeration dish has been arranged in the stripping pond bottom, the aeration dish passes through the air line intercommunication with external air-blower, be equipped with the air pipe check valve on the air pipe way.

When the wastewater treatment device is used, wastewater enters the neutralization reaction tank, sodium hydroxide is added into the neutralization reaction tank to react with the wastewater, the reacted wastewater enters the stripping tank from top to bottom through the horizontal connecting pipe from the stripping water inlet at the upper part of the stripping tank, the aeration disc arranged at the bottom in the stripping tank is utilized to perform aeration from bottom to top, the wastewater and the aeration are subjected to reaction in a mode of running in opposite directions, the reaction contact time of the wastewater and the aeration is increased, the wastewater after the reaction treatment flows out from the stripping water outlet at the lower part of the stripping tank (the reaction time is also increased when the wastewater in the stripping tank enters and exits), and the wastewater purification treatment effect is increased.

Further, this ammonia nitrogen wastewater treatment facility still includes the regulation pond that is used for storing waste water, and the neutralization reaction pond is equipped with the neutralization water inlet, and the high height of arranging that is higher than the neutralization delivery port of neutralization water inlet, and the neutralization water inlet of regulation pond and neutralization reaction pond passes through the inlet tube intercommunication, is equipped with the inlet adjustment valve on the inlet tube, conveniently adjusts the waste water inflow that gets into the neutralization reaction pond to avoid too much waste water to get into the neutralization reaction pond and lead to waste water in the neutralization reaction pond can not better reaction.

Further, the neutralization water outlet of the neutralization reaction tank is positioned at the upper part of the neutralization reaction tank, so that the contact reaction time of the wastewater and sodium hydroxide medicament is increased, the wastewater fully reacts with sodium hydroxide and then enters the stripping tank for treatment, and the ammonia nitrogen wastewater treatment effect is increased.

Further, be equipped with the steam heating pipe in the stripping pond, be equipped with the steam pipe check valve on the steam heating pipe, the effect of steam pipe heating pipe is promoted the stripping in-pond temperature, and then improves the stripping effect, installs the steam pipe check valve additional simultaneously and can avoid steam to stop when exporting, and waste water in the stripping pond enters into the steam heating pipe. The steam pipe is also provided with a steam pipe regulating valve, so that the steam output can be conveniently regulated according to the regulation.

Further, the sodium hydroxide put in the neutralization reaction tank is put in by the sodium hydroxide dosing pipe, the sodium hydroxide dosing pipe is vertically and downwards arranged at the top of one side wall of the neutralization reaction tank far away from the stripping tank, the water inlet pipe is horizontally arranged at the upper part of one side wall of the neutralization reaction tank far away from the stripping tank, and the sodium hydroxide dosing pipe and the water inlet pipe are vertically intersected and structurally arranged so that the wastewater can be in contact with the put sodium hydroxide fastest after entering the neutralization reaction tank, the reaction time of the sodium hydroxide dosing pipe and the neutralization reaction tank is prolonged, and therefore the wastewater treatment effect is improved.

The beneficial effects of the utility model are as follows: according to the utility model, ammonia nitrogen wastewater is treated by the neutralization reaction tank and the stripping tank, the neutralization reaction effect is increased by designing the stirring mechanism in the neutralization reaction tank, and the stripping effect is increased by adopting opposite gas flow direction and wastewater flow direction in the stripping tank, so that the wastewater treatment effect is improved as a whole; the equipment has compact treatment process, simple operation, low maintenance cost and small occupied area, has good practical application value and has important significance for cost reduction and synergy.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

In the figure: 1-neutralization reaction tank, 2-stripping tank, 3-stirring mechanism, 31-motor, 32-rotating shaft, 33-stirring blade, 34-fixing frame, 4-horizontal connecting pipe, 5-aeration disk, 6-air pipeline, 7-empty pipe check valve, 8-water inlet pipe, 9-water inlet regulating valve, 10-steam heating pipe, 11-sodium hydroxide dosing pipe, 12-empty pipe regulating valve, 13-liquid discharge pipe, 14-stop valve, 15-water outlet pipe and 16-water outlet regulating valve.

Detailed Description

As shown in fig. 1, an ammonia nitrogen wastewater treatment device comprises a neutralization reaction tank 1 into which sodium hydroxide is put, a stripping tank 2, wherein the neutralization reaction tank 1 is provided with a neutralization water outlet and a stirring mechanism 3 for stirring the sodium hydroxide and wastewater (the stirring mechanism 3 is available to a person skilled in the art through conventional means, in the specific implementation, the stirring mechanism 3 comprises a stirrer and a fixing frame 34, the fixing frame 34 is fixed at the top tank mouth of the neutralization reaction tank 1, the stirrer comprises a motor 31 and stirring blades 33 fixed on a rotating shaft 32 of the motor 31, the motor 31 is fixed on the fixing frame 34, the stirring blades 33 extend into the neutralization reaction tank 1), the stripping tank 2 is provided with a stripping water inlet positioned at the upper part of the stripping tank 2 and a stripping water outlet positioned at the lower part of the stripping tank 2, the neutralization water outlet of the neutralization reaction tank 1 is communicated with the stripping water inlet of the stripping tank 2 through a horizontal connecting pipe 4, an aeration disc 5 is arranged at the bottom in the stripping tank 2, the aeration disc 5 is communicated with an external blower through an air pipeline 6, and a hollow pipe check valve 7 is arranged on the air pipeline 6.

When the wastewater treatment device is used, wastewater enters the neutralization reaction tank 1, sodium hydroxide is added into the neutralization reaction tank 1 to react with the wastewater, the reacted wastewater enters the stripping tank 2 from top to bottom through the horizontal connecting pipe 4 from the stripping water inlet at the upper part of the stripping tank 2, the aeration disc 5 arranged at the bottom in the stripping tank 2 is utilized to aerate the wastewater from bottom to top, the wastewater and the aeration are subjected to reaction in a mode of opposite running, the reaction contact time of the wastewater and the aeration is increased, and then the reaction time is also increased when the wastewater after the reaction treatment flows out of the water in the stripping tank 2 from the stripping water inlet at the lower part of the stripping tank 2, so that the purification treatment effect of the wastewater is increased.

During specific implementation, the ammonia nitrogen wastewater treatment equipment further comprises a regulating and accumulating tank for storing wastewater, the neutralizing and reacting tank 1 is provided with a neutralizing water inlet, the arrangement height of the neutralizing water inlet is higher than that of a neutralizing water outlet, the regulating and accumulating tank is communicated with the neutralizing water inlet of the neutralizing and reacting tank 1 through a water inlet pipe 8, a water inlet regulating valve 9 is arranged on the water inlet pipe 8, and the wastewater inflow amount entering the neutralizing and reacting tank 1 is conveniently regulated, so that excessive wastewater cannot enter the neutralizing and reacting tank 1 to cause better reaction of wastewater in the neutralizing and reacting tank 1.

In the concrete implementation, the neutralization water outlet of the neutralization reaction tank 1 is positioned at the upper part of the neutralization reaction tank 1, so that the contact reaction time of the wastewater and sodium hydroxide is increased, the wastewater fully reacts with the sodium hydroxide and then enters the stripping tank 2 for treatment, and the ammonia nitrogen wastewater treatment effect is increased.

During specific implementation, the steam heating pipe 10 is arranged in the stripping tank 2, the steam heating pipe 10 is provided with a steam pipe check valve on a pipeline, the steam pipe serves to raise the temperature in the stripping tank 2, and further improve stripping effect, and meanwhile, when the steam pipe check valve is additionally arranged, waste water in the stripping tank 2 can be prevented from entering the steam heating pipe 10 when steam is stopped being output. The steam pipe is also provided with a steam pipe regulating valve, so that the steam output can be conveniently regulated according to the regulation.

During specific implementation, sodium hydroxide put in the neutralization reaction tank 1 is put in by the sodium hydroxide dosing pipe 11, the sodium hydroxide dosing pipe 11 is vertically and downwards arranged at the top of a side wall of the neutralization reaction tank 1, which is far away from the stripping tank 2, the water inlet pipe 8 is horizontally arranged at the upper part of the side wall of the neutralization reaction tank 1, which is far away from the stripping tank 2, and the sodium hydroxide dosing pipe 11 and the water inlet pipe 8 are vertically intersected and structurally arranged so that the wastewater can be in contact with the put sodium hydroxide for reaction fastest after entering the neutralization reaction tank 1, the reaction time of the wastewater and the put sodium hydroxide is increased, and thus the wastewater treatment effect is improved.

In the specific embodiment, the air pipeline 6 is also provided with an air-conditioning valve 12, so that the aeration rate can be conveniently adjusted. The bottom of the stripping tank 2 is also provided with a liquid outlet, the liquid outlet is connected with a liquid outlet pipe 13, and the liquid outlet pipe 13 is provided with a stop valve 14, so that the liquid at the bottom of the stripping tank 2 can be conveniently emptied. The water outlet pipe 15 is connected with the water outlet port of the stripping pool 2, and the water outlet pipe 15 is provided with a water outlet regulating valve 16, so that the treated wastewater water yield can be conveniently regulated. The arrangement height of the blowing-out water gap of the blowing-out tank 2 is higher than that of the liquid outlet of the blowing-out tank 2, and the bottom wastewater can be deposited with sundries and the like, so that the bottom wastewater in the blowing-out tank 2 is prevented from being directly discharged.

Claims

1. The utility model provides an ammonia nitrogen wastewater treatment equipment, a serial communication port, including throwing in neutralization reaction pond (1) of sodium hydroxide, blow-off pond (2), neutralization reaction pond (1) are equipped with the neutralization delivery port, be used for stirring rabbling mechanism (3) of sodium hydroxide and waste water, blow-off pond (2) are equipped with the blow-off water inlet that is located blow-off pond (2) upper portion and are located blow-off water gap of blow-off pond (2) lower part, neutralization reaction pond (1) neutralization delivery port and blow-off pond (2) blow-off water inlet pass through horizontal connecting pipe (4) way intercommunication, aeration dish (5) have been arranged in blow-off pond (2), aeration dish (5) are through air line (6) intercommunication with external air-blower, be equipped with air pipe check valve (7) on air line (6).

2. The ammonia nitrogen wastewater treatment device according to claim 1, further comprising a regulating reservoir for storing wastewater, wherein the neutralization reaction tank (1) is provided with a neutralization water inlet, the neutralization water inlet is higher than the neutralization water outlet, the regulating reservoir is communicated with the neutralization water inlet of the neutralization reaction tank (1) through a water inlet pipe (8), and the water inlet pipe (8) is provided with a water inlet regulating valve (9).

3. An ammonia nitrogen wastewater treatment device according to claim 2, wherein the neutralization water outlet of the neutralization reaction tank (1) is positioned at the upper part of the neutralization reaction tank (1).

4. An ammonia nitrogen wastewater treatment device according to claim 1, 2 or 3, wherein a steam heating pipe (10) is arranged in the stripping tank (2), and a steam pipe check valve is arranged on the steam heating pipe (10).

5. An ammonia nitrogen wastewater treatment device according to claim 4, wherein the steam pipeline is further provided with a steam pipe regulating valve.

6. The ammonia nitrogen wastewater treatment device according to claim 5, wherein sodium hydroxide put in the neutralization reaction tank (1) is put in by a sodium hydroxide dosing pipe (11), the sodium hydroxide dosing pipe (11) is vertically and downwardly arranged at the top of a side wall of the neutralization reaction tank (1) far away from the stripping tank (2), and the water inlet pipe (8) is horizontally arranged at the upper part of the side wall of the neutralization reaction tank (1) far away from the stripping tank (2).

7. An ammonia nitrogen wastewater treatment device according to claim 6, characterized in that the air pipeline (6) is also provided with an empty pipe regulating valve (12).

8. The ammonia nitrogen wastewater treatment device according to claim 7, wherein the bottom of the stripping tank (2) is also provided with a liquid outlet, the liquid outlet is connected with a liquid outlet pipe (13), and the liquid outlet pipe (13) is provided with a stop valve (14).

9. The ammonia nitrogen wastewater treatment device according to claim 8, wherein a water outlet pipe (15) is connected with a water outlet port of the stripping tank (2), and a water outlet regulating valve (16) is arranged on the water outlet pipe (15).

10. The ammonia nitrogen wastewater treatment device according to claim 9, wherein the arrangement height of the blow-off water gap of the blow-off tank (2) is higher than the arrangement height of the liquid discharge port of the blow-off tank (2).