CN209890288U

CN209890288U - Zeolite based nitrogen removal device

Info

Publication number: CN209890288U
Application number: CN201920473278.9U
Authority: CN
Inventors: 刘艳娟; 司亚康; 韩永艳; 孟丽聪
Original assignee: Tangshan University
Current assignee: Tangshan University
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-03
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a nitrogen removal device based on zeolite, which comprises a tank body, wherein a water inlet is formed on the side wall of the tank body, a water outlet is formed on the tank body opposite to the water inlet, 2 upper clapboards are fixedly arranged in the tank body between the water inlet and the water outlet, a lower clapboard is arranged between the 2 upper clapboards, and a zeolite layer is fixedly arranged between the lower clapboard and each upper clapboard; a punching and discharging port is formed on the tank body, and the punching and discharging port is positioned between the 2 upper partition plates and above the 2 zeolite layers; the water inlet is respectively communicated with the sewage inlet pipe and the first pipeline, the water outlet is respectively communicated with the discharge pipe and the second pipeline, and the first pipeline and the second pipeline are communicated with the purified water source. The utility model discloses a nitrogen removal device can wash the internal zeolite layer of jar under the prerequisite that need not dismantle zeolite layer, gets into the running water simultaneously from water inlet and delivery port and washes the internal zeolite layer of jar, improves the washing efficiency to zeolite layer.

Description

Zeolite based nitrogen removal device

Technical Field

The utility model belongs to the waste water treatment field relates to a nitrogen removal device based on zeolite particularly.

Background

Nitrogen is an important oxygen consuming substance in the water body and is a pollutant causing eutrophication of the water body. In recent years, the emission of nitrogen has been increasing with the increase of social production level. As water pollution events frequently occur, daily production work of society is seriously threatened, for areas with serious water pollution, stricter standards are gradually implemented to control the emission of nitrogen in sewage, and a sewage treatment plant faces a severe current situation with improved standards. Therefore, improvement of the treatment efficiency under the economic condition has been the key point of research.

At present, the blow-off method, the biological method and the ion exchange method are mainly used for solving the high-concentration nitrogen pollution in China. Wherein, the blow-off method is easy to cause secondary pollution, the requirements of the biological method are high, the reaction is slow, and the ion exchange method is easy to control. Natural zeolite is a hydrous alkali or alkaline earth metal aluminosilicate mineral, is a framework silicate consisting of silicon-oxygen tetrahedron and aluminum-oxygen tetrahedron, and has the characteristics of large specific surface area, good adsorption performance, strong ion exchange capacity, stable chemical performance and the like. The zeolite has a good effect on removing nitrogen, has universality on concentration, and is a water treatment mode with prospect due to abundant reserves and low cost of zeolite resources in China, so that the zeolite has more attention on nitrogen adsorption. Research shows that the form and structure of zeolite before and after nitrogen adsorption does not change, but the specific surface area, pore volume and pore diameter are obviously reduced, so that nitrogen ions enter zeolite pore channels to occupy partial space of the pore channels. The adsorption capacity of zeolite is limited, so that the dirt accumulated in the pores of zeolite day by day is required to be removed immediately, and the water quality filtering efficiency of zeolite can be maintained only by cleaning regularly and 'regenerating' regularly.

Disclosure of Invention

To prior art's not enough, the utility model aims to provide a nitrogen removal device based on zeolite, this nitrogen removal device removes nitrogen to water based on zeolite, washes zeolite after using a period of time, improves the life of zeolite.

The purpose of the invention is realized by the following technical scheme.

A nitrogen removal device based on zeolite comprises a tank body, wherein a water inlet is formed in the side wall of the tank body, a water outlet is formed in the tank body opposite to the water inlet, 2 upper partition plates are fixedly arranged in the tank body between the water inlet and the water outlet, the top end of each upper partition plate is fixedly mounted with the inner wall of the top surface of the tank body, the side edge of each upper partition plate is fixedly mounted with the inner side wall of the tank body, and a gap is formed between the bottom end of each upper partition plate and the inner wall of the bottom surface of the tank body; a lower partition plate is arranged between the 2 upper partition plates, the bottom end of the lower partition plate is fixedly mounted with the inner wall of the bottom surface of the tank body, the side edge of the lower partition plate is fixedly mounted with the inner side wall of the tank body, and a gap is formed between the top end of the lower partition plate and the inner wall of the top surface of the tank body;

a zeolite layer is fixedly arranged between the lower partition plate and each upper partition plate, so that water entering from the water inlet is filtered by 2 zeolite layers before being discharged from the water outlet;

a flushing and discharging port is formed on the tank body, and the flushing and discharging port is positioned between the 2 upper partition plates and above the 2 zeolite layers;

the water inlet is respectively communicated with the sewage inlet pipe and the first pipeline, the water outlet is respectively communicated with the discharge pipe and the second pipeline, and the first pipeline and the second pipeline are communicated with the purified water source.

In the above technical solution, the first pipe is provided with a first valve.

In the above technical solution, the second pipeline is provided with a second valve.

In the above technical solution, a third valve is installed on the sewage inlet pipe.

In the above technical solution, a fourth valve is installed on the discharge pipe.

In the technical scheme, an arc surface is formed on the inner wall of the bottom surface of the tank body below the zeolite layer, and a sewage discharge outlet is formed at the lowest part of the arc surface.

In the technical scheme, the sewage draining outlet is communicated with the sewage collecting container through a third pipeline.

In the above technical scheme, the observation window is installed to the lateral wall of the jar body.

In the technical scheme, the discharge pipe is communicated with the sedimentation tank.

In the technical scheme, a feeding opening is formed in the tank body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the nitrogen removal device of the utility model can clean the zeolite layer in the tank body without disassembling the zeolite layer;

2. tap water simultaneously enters from the water inlet and the water outlet to flush the zeolite layer in the tank body, so that the flushing efficiency of the zeolite layer is improved;

3. the sewage draining exit and the cambered surface around the sewage draining exit can further improve the cleaning effect on the zeolite layer;

4. according to the actual needs, the nitrogen removal device can be designed into one nitrogen removal device or a plurality of nitrogen removal devices in series.

Drawings

FIG. 1 is a schematic structural view of a nitrogen removal device of the present invention;

FIG. 2 is a schematic structural view of the nitrogen removal device of the present invention;

fig. 3 is a schematic structural view of the nitrogen removal device of the present invention.

Wherein, 1 is the discharge pipe, 2 is the filth collecting container, 3 is the third pipeline, 4 is the drain, 5 is the upper baffle, 6 is the zeolite layer, 7 is the water inlet, 8 is for advancing dirty pipe, 9 is the third valve, 10 is first valve, 11 is first pipeline, 12 is the input mouth, 13 is clean water source, 14 is for dashing the mouth of arranging, 15 is lower baffle, 16 is the second pipeline, 17 is the second valve, 18 is the sedimentation tank, 19 is the delivery port, 20 is the fourth valve.

Detailed Description

The nitrogen removal device of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

As shown in the attached figure 1, the water-saving tank comprises a tank body, wherein a water inlet 7 is formed in the side wall of the tank body, a water outlet 19 is formed in the tank body opposite to the

water inlet

7, 2 upper partition plates 5 are fixedly arranged in the tank body between the water inlet 7 and the water outlet 19, the top end of each upper partition plate 5 is fixedly arranged on the inner wall of the top surface of the tank body, the side edge of each upper partition plate 5 is fixedly arranged (in seamless connection) with the inner side wall of the tank body, and a gap capable of passing water is formed between the bottom end of each upper partition plate 5 and the inner wall of the; a lower clapboard 15 is arranged between 2 upper clapboards 5, the bottom end of the lower clapboard 15 is fixedly installed with the inner wall of the bottom surface of the tank body, the side edge of the lower clapboard 15 is fixedly installed (in seamless connection) with the inner side wall of the tank body, and a gap which can pass through water is formed between the top end of the lower clapboard 15 and the inner wall of the top surface of the tank body;

a zeolite layer 6 is fixedly arranged between the lower partition plate 15 and each upper partition plate 5, the zeolite layer 6 is zeolite particles fixed by a metal net, and the thickness of the zeolite layer 6 is 10-15 cm, so that water entering from the water inlet 7 is filtered by 2 zeolite layers 6 before being discharged from the water outlet 19;

a punching and discharging port 14 is formed on the tank body, and the punching and discharging port 14 is positioned between the 2 upper partition plates 5 and above the 2 zeolite layers 6;

the water inlet 7 is respectively communicated with the sewage inlet pipe 8 and the first pipeline 11, the water outlet 19 is respectively communicated with the discharge pipe 1 and the second pipeline 16, and the first pipeline 11 and the second pipeline 16 are communicated with the purified water source 13.

A first valve 10 is attached to the first pipe 11, a second valve 17 is attached to the second pipe 16, a third valve 9 is attached to the sewage inlet pipe 8, and a fourth valve 20 is attached to the discharge pipe 1.

The utility model discloses a denitrogenation device's working process as follows:

and (3) nitrogen removal process: the third valve 9 and the fourth valve 20 are opened and the first valve 10 and the second valve 17 are closed. The wastewater to be denitrified enters the tank body from the water inlet 7 through the sewage inlet pipe 8, then passes through the 2 zeolite layers 6 in sequence, and finally is discharged from the discharge pipe 1 through the water outlet 19.

Cleaning the zeolite layer: and (3) closing the third valve 9 and the fourth valve 20, opening the first valve 10, the flushing and discharging port 14 and the second valve 17, discharging tap water into the tank body from the clean water source 13 through the first pipeline 11 and the second pipeline 16, flushing the zeolite layer by the tap water, and finally discharging the zeolite layer through the flushing and discharging port 14.

Example 2

On the basis of embodiment 1, be formed with the cambered surface on the jar body bottom surface inner wall that is located zeolite layer 6 below, be formed with drain 4 in the lowest department of cambered surface, drain 4 passes through third pipeline 3 and communicates with filth collection container 2. When the objects which cannot be discharged from the flushing and discharging port are discharged into the dirt collecting container 2 from the third pipeline 3 through the dirt discharging port 4 along the arc surface. As shown in FIG. 1, the number of the sewage discharge outlets 4 is 2, and the number of the sewage discharge outlets is 1 on each side of the lower partition 15.

Preferably, an observation window (not shown) is mounted on the side wall of the tank body, and the observation window can be made of glass and used for observing the condition in the tank body.

Example 3

On the basis of embodiment 2, as shown in fig. 2, when the nitrogen removal device is used, not only the discharge pipe 1 can be directly communicated with the sedimentation tank 18, but also a plurality of nitrogen removal devices of the present invention can be connected in series, as shown in fig. 3. For example, when 2 nitrogen removal devices are connected in series, the discharge pipe 1 of the first nitrogen removal device communicates with the sewage inlet pipe 8 of the second nitrogen removal device, and a pump may be attached to the sewage inlet pipe 8 of the second nitrogen removal device. The 2 nitrogen removing devices can share one purified water source 13, and can also independently use the respective purified water sources 13.

Preferably, an inlet 12 is formed in the tank, and after the zeolite layer is cleaned, solid salt or tap water in which salt is dissolved is introduced into the tank through the inlet 12, and the zeolite layer is soaked for 24 hours, so that the ions in the salt can absorb the fine impurities accumulated in the porous pores of the zeolite and which cannot be cleaned, thereby improving the filtration effect in the later stage of the zeolite.

The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.

Claims

1. A nitrogen removal device based on zeolite is characterized by comprising a tank body, wherein a water inlet (7) is formed in the side wall of the tank body, a water outlet (19) is formed in the tank body opposite to the water inlet (7), 2 upper partition plates (5) are fixedly arranged in the tank body between the water inlet (7) and the water outlet (19), the top end of each upper partition plate (5) is fixedly arranged on the inner wall of the top surface of the tank body, the side edge of each upper partition plate (5) is fixedly arranged on the inner wall of the tank body, and a gap is formed between the bottom end of each upper partition plate (5) and the inner wall of the bottom surface of the tank body; a lower partition plate (15) is arranged between the 2 upper partition plates (5), the bottom end of the lower partition plate (15) is fixedly mounted with the inner wall of the bottom surface of the tank body, the side edge of the lower partition plate (15) is fixedly mounted with the inner wall of the tank body, and a gap is formed between the top end of the lower partition plate (15) and the inner wall of the top surface of the tank body;

a zeolite layer (6) is fixedly arranged between the lower partition plate (15) and each upper partition plate (5), so that water entering from the water inlet (7) is filtered by 2 zeolite layers (6) before being discharged from the water outlet (19);

a punching and discharging port (14) is formed on the tank body, and the punching and discharging port (14) is positioned between the 2 upper partition plates (5) and above the 2 zeolite layers (6);

the water inlet (7) is respectively communicated with the sewage inlet pipe (8) and the first pipeline (11), the water outlet (19) is respectively communicated with the discharge pipe (1) and the second pipeline (16), and the first pipeline (11) is communicated with the second pipeline (16) and the water purifying source (13).

2. Nitrogen removal device according to claim 1, characterized in that a first valve (10) is mounted on the first conduit (11).

3. Nitrogen removal device according to claim 2, characterized in that a second valve (17) is fitted on the second conduit (16).

4. Nitrogen removal device according to claim 3, wherein a third valve (9) is mounted on the sewage inlet pipe (8).

5. Nitrogen removal device according to claim 4, wherein a fourth valve (20) is mounted on the discharge pipe (1).

6. The nitrogen removal device as claimed in claim 5, wherein an arc surface is formed on the inner wall of the bottom surface of the tank body below the zeolite layer (6), and a sewage discharge outlet (4) is formed at the lowest part of the arc surface.

7. Nitrogen removal device according to claim 6, wherein the waste outlet (4) is in communication with a dirt collection container (2) via a third conduit (3).

8. The nitrogen removal device of claim 7, wherein the side wall of the tank body is provided with a viewing window.

9. Nitrogen removal device according to claim 8, wherein the discharge pipe (1) is in communication with a settling basin (18).

10. Nitrogen removal device according to claim 9, characterized in that a dosing opening (12) is formed in the tank.