CN211521715U

CN211521715U - COD (chemical oxygen demand) and ammonia nitrogen removing device for wastewater treatment

Info

Publication number: CN211521715U
Application number: CN201921281629.2U
Authority: CN
Inventors: 崔玉祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-09-18
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a COD and ammonia nitrogen removing device for wastewater treatment, which comprises a stirring box, a support rod, a stirring plate and a sleeve, wherein the stirring box is integrally of a cylindrical structure, the stirring box is hollow and is provided with a stirring cavity, the upper part of the stirring cavity is opened, and the support rod is arranged in the stirring cavity; the support rod is arranged at the center of the stirring cavity and is overlapped with the central axis of the stirring cavity; the sleeve is sleeved on the supporting rod, a plurality of sleeves are arranged, and the stirring plate is arranged on the sleeve through a connecting rod; the supporting rod is hollow and provided with an air transmission channel, the side surface of the supporting rod is provided with an aeration port, and the aeration port is communicated with the air transmission channel; the gas transmission channel is connected with a gas pump through a gas pipe, and the gas pump is connected with a controller; the utility model discloses a sleeve rotates and drives the stirring board and rotate to stir the water in the agitator tank, cod, ammonia nitrogen reaction in the acceleration waste water, thereby be convenient for get rid of.

Description

COD (chemical oxygen demand) and ammonia nitrogen removing device for wastewater treatment

Technical Field

The utility model relates to a waste water treatment technical field specifically is a COD, ammonia nitrogen remove device for waste water treatment.

Background

Water is the most valuable natural resource and is a necessary condition for human survival. The conservation, utilization and research of water resources have become one of the hottest topics in the world today. The Chemical Oxygen Demand (COD) is the amount of reducing substances needing to be oxidized in a water sample measured by a chemical method. The oxygen equivalent of the species that can be oxidized by the strong oxidizing agent in the wastewater, wastewater treatment plant effluent, and contaminated water. In the research of river pollution and the property of industrial wastewater and the operation management of wastewater treatment plants, it is an important and relatively fast measurable organic pollution parameter, often denoted by the symbol COD.

In the waste water in the existing factory, the COD content is higher, and if the waste water is directly discharged without being treated, the waste water can damage the environment and pollute water resources.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a COD, ammonia nitrogen remove device for waste water treatment to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a COD (chemical oxygen demand) and ammonia nitrogen removal device for wastewater treatment comprises a stirring tank, a support rod, a stirring plate and a sleeve, wherein the stirring tank is integrally of a cylindrical structure, the stirring tank is hollow and is provided with a stirring cavity, the upper part of the stirring cavity is provided with an opening, and the support rod is arranged in the stirring cavity; the support rod is arranged at the center of the stirring cavity and is overlapped with the central axis of the stirring cavity; the sleeve is sleeved on the supporting rod, a plurality of sleeves are arranged, and the stirring plate is arranged on the sleeve through a connecting rod; the supporting rod is hollow and provided with an air transmission channel, the side surface of the supporting rod is provided with an aeration port, and the aeration port is communicated with the air transmission channel; the gas transmission channel is connected with a gas pump through a gas pipe, the gas pump is connected with a controller, and a water outlet is formed in the lower side of the stirring box.

Preferably, the air pipe of the air pump is provided with a one-way valve, the aeration ports are uniformly arranged along the support rod, and the aeration ports and the sleeve barrel are staggered.

Preferably, the sleeve is provided with an installation groove, and the support rod is arranged in the installation groove in a matching manner; the side surface of the supporting rod is provided with an annular clamping block, the side surface of the mounting groove is provided with an annular clamping groove, and the clamping block is arranged in the clamping groove in a matched mode.

Preferably, the upper surface and the lower surface of each clamping block are provided with driving grooves, driving gears are installed in the driving grooves, and the driving gears are installed in the driving grooves through driving shafts; toothed belts are arranged on the upper groove wall and the lower groove wall of the clamping groove and are meshed with the driving gear; the driving shaft is connected with a driving motor, and the driving motor is electrically connected with the controller.

Preferably, six groups of stirring plates are correspondingly arranged on one sleeve, and the included angle between every two adjacent stirring plates is 60 degrees; the stirring plate is provided with a plurality of strip-shaped through holes on the surface, and the through holes are uniformly arranged.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model drives the stirring plate to rotate through the rotation of the sleeve, thereby stirring the water in the stirring tank, accelerating the cod and ammonia nitrogen reaction in the wastewater, and facilitating the removal; meanwhile, the air pump is used for filling air into the aeration port, so that the oxidation efficiency is improved, and the purification treatment effect is better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the supporting rod structure of the present invention;

fig. 3 is a schematic view of the driving gear arrangement of the present invention;

reference numbers in the figures: 1. a stirring box; 11. a stirring chamber; 12. a water outlet; 2. a support bar; 21. an aeration opening; 22. a gas transmission channel; 23. a clamping block; 24. a drive gear; 3. a stirring plate; 31. a connecting rod; 32. through holes; 4. a sleeve; 41. mounting grooves; 42. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 3, the present invention provides a technical solution: a COD (chemical oxygen demand) and ammonia nitrogen removal device for wastewater treatment comprises a stirring tank 1, a support rod 2, a stirring plate 3 and a sleeve 4, wherein the stirring tank 1 is integrally of a cylindrical structure, the stirring tank 1 is hollow and is provided with a stirring cavity 11, the upper part of the stirring cavity 11 is provided with an opening, and the support rod 2 is arranged in the stirring cavity 11; the support rod 2 is arranged at the center of the stirring cavity 11 and is overlapped with the central axis of the stirring cavity 11; the sleeve 4 is sleeved on the support rod 2, a plurality of sleeves 4 are arranged, and the stirring plate 3 is arranged on the sleeve 4 through a connecting rod 31; the support rod 2 is hollow and provided with an air transmission channel 22, the side surface of the support rod 2 is provided with an aeration opening 21, and the aeration opening 21 is communicated with the air transmission channel 22; the gas transmission channel 22 is connected with a gas pump through a gas pipe, the gas pump is connected with a controller, and a water outlet 12 is arranged below the side of the stirring box 1.

Furthermore, a one-way valve is arranged on an air pipe of the air pump, the aeration openings 21 are uniformly arranged along the support rod 2, and the aeration openings 21 and the sleeve 4 are staggered.

Further, the sleeve 4 is provided with an installation groove 41, and the support rod 2 is fittingly arranged in the installation groove 41; an annular clamping block 23 is arranged on the side surface of the support rod 2, an annular clamping groove 42 is arranged on the side surface of the mounting groove 41, and the clamping block 23 is arranged in the clamping groove 42 in a matching mode.

Further, the upper surface and the lower surface of the clamping block 23 are provided with driving grooves, driving gears 24 are installed in the driving grooves, and the driving gears 24 are installed in the driving grooves through driving shafts; toothed belts are arranged on the upper groove wall and the lower groove wall of the clamping groove 42 and are meshed with the driving gear 24; the driving shaft is connected with a driving motor, and the driving motor is electrically connected with the controller.

Furthermore, six groups of stirring plates 3 are correspondingly arranged on one sleeve 4, and the included angle between every two adjacent stirring plates 3 is 60 degrees; the surface of the stirring plate 3 is provided with a plurality of strip-shaped through holes 32, and the through holes 32 are uniformly arranged.

The working principle is as follows: when the water stirring device is used, the controller controls the driving shaft motor of the driving gear 24 to work and rotate, so that the driving gear 24 is driven to rotate and is meshed with the toothed belts on the upper side and the lower side of the clamping groove 42, the sleeve 4 is driven to rotate, the sleeve 4 drives the stirring plate 3 to rotate around the supporting rod 2, and water in the stirring cavity 11 is stirred; meanwhile, the controller controls the air pump to work, and air is filled into the aeration port 21, so that the oxidation efficiency is increased, and the cleaning of the cod is promoted.

Example 1: when the clean water is coking wastewater of a coal washing plant, the COD value of biochemical effluent is 581ppm, the pH value of raw water is 7.6, 500-1000 ppm of powdered activated carbon is added, 1000-2000 ppm of 30% hydrogen peroxide is added after the stirring of the stirring plate 3 is uniform, 1000-2000 ppm of anion activator sodium bicarbonate is added after the stirring is uniform, an air pump is inflated, an aeration port 21 is aerated for reaction for 0.5-1.0 hour, 1000-2000 ppm of magnesium sulfate heptahydrate is added, the pH value of the raw water is adjusted to 10.0 by calcium hydroxide, magnesium hydroxide is generated to adsorb organic matters in a water body, and the organic matters in the water body are further removed. And adding 5-10 pmm of flocculating agent for flocculation and precipitation, adjusting the pH of the raw water back to 6.0-9.0 of the comprehensive discharge standard by using dilute sulfuric acid for effluent, wherein the COD value detected by the effluent is 50ppm, and the removal rate of the COD is 91.4%.

Example 2: when the clean water is biochemical effluent of papermaking wastewater, the COD value of the effluent after deep Fenton treatment is 210ppm, the PH value of the raw water is 7.4, 200-400 ppm of powdered activated carbon is added, 200-400 ppm of 30% hydrogen peroxide is added after the stirring plate 3 is uniformly stirred, 200-400 ppm of sodium bicarbonate as an anion activator is added after the stirring is uniformly carried out, the aeration port 21 is used for aeration reaction for 0.5-1 hour after the stirring is uniformly carried out, and 5-10 pmm of flocculant is added for flocculation and precipitation. The COD value of the effluent is 10ppm, and the removal rate of COD is 95.2%.

Example 3: when the water to be cleaned is the wastewater containing lubricating oil of a coking plant, the COD value is 2650ppm, the PH value of the raw water is 7.2, 3000-5000 ppm of powdered activated carbon is added, after the stirring plate 3 is uniformly stirred, 3000-5000 ppm of 30% hydrogen peroxide is added, after the stirring is uniform, 3000-5000 ppm of anion activator sodium bicarbonate is added, after the stirring is uniform, an aeration port 21 is aerated for reaction for 1.0-2.0 hours, and after the reaction is finished, 5-10 pmm of flocculant is added for flocculation and precipitation. The COD value of the effluent is 260ppm, and the removal rate of COD is 90.2%.

Example 4: pouring analytically pure ammonium chloride solid into a deionized water sample, uniformly stirring by a stirring plate 3, sampling, testing water quality, testing ammonia nitrogen content, wherein the ammonia nitrogen content is 830ppm, weighing 2-4 times of ammonia nitrogen content powder activated carbon, uniformly stirring, adding 2-4 times of ammonia nitrogen content hydrogen peroxide, uniformly stirring, adding 2-4 times of sodium bicarbonate, uniformly stirring, carrying out 21-time aeration reaction at an aeration port for 2.0 hours, adding 5-10 ppm of flocculant, after flocculation and sedimentation, taking supernatant to detect the ammonia nitrogen content of the water, detecting the ammonia nitrogen content, wherein the ammonia nitrogen removal rate is 50.6%.

The wastewater is stirred by the device, different chemicals are added in different processes, aeration reaction is assisted, and the oxidation efficiency of the reaction system is improved by introducing air, because carbon dioxide in the air can activate hydrogen peroxide; oxygen in the air is activated by catalyst active carbon or metal oxide to generate hydroxyl free radicals, so that the number of the hydroxyl free radicals is increased, the oxidation efficiency is improved, and the removal ratio of COD is further improved.

After the stirring is finished, water is discharged through the water outlet 12; the through holes 32 are formed in the stirring plate 3, so that water flows through the through holes in the stirring process, the resistance borne by the stirring plate 3 is reduced, and the stirring plate 3 is prevented from being damaged due to overlarge resistance. Set up the check valve on the trachea, guarantee the air current flow direction, avoid liquid backward flow to the air pump in, influence the normal use of air pump.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a COD, ammonia nitrogen remove device for waste water treatment which characterized in that: the stirring device comprises a stirring box (1), a supporting rod (2), a stirring plate (3) and a sleeve (4), wherein the stirring box (1) is integrally of a cylindrical structure, the stirring box (1) is hollow and provided with a stirring cavity (11), the upper part of the stirring cavity (11) is provided with an opening, and the supporting rod (2) is arranged in the stirring cavity (11); the support rod (2) is arranged at the center of the stirring cavity (11) and is overlapped with the central axis of the stirring cavity (11); the sleeve (4) is sleeved on the supporting rod (2), a plurality of sleeves (4) are arranged, and the stirring plate (3) is arranged on the sleeve (4) through a connecting rod (31); the support rod (2) is hollow and provided with an air transmission channel (22), an aeration port (21) is arranged on the side surface of the support rod (2), and the aeration port (21) is communicated with the air transmission channel (22); the gas transmission channel (22) is connected with a gas pump through a gas pipe, the gas pump is connected with a controller, and a water outlet (12) is arranged below the side of the stirring box (1).

2. The COD and ammonia nitrogen removing device for wastewater treatment according to claim 1, characterized in that: the air pump is characterized in that a one-way valve is arranged on an air pipe of the air pump, the aeration openings (21) are uniformly arranged along the support rod (2), and the aeration openings (21) and the sleeves (4) are staggered.

3. The COD and ammonia nitrogen removing device for wastewater treatment according to claim 1, characterized in that: the sleeve (4) is internally provided with an installation groove (41), and the support rod (2) is arranged in the installation groove (41) in a matching manner; an annular clamping block (23) is arranged on the side surface of the supporting rod (2), an annular clamping groove (42) is arranged on the side surface of the mounting groove (41), and the clamping block (23) is arranged in the clamping groove (42) in a matched mode.

4. The COD and ammonia nitrogen removing device for wastewater treatment according to claim 3, characterized in that: the upper surface and the lower surface of each clamping block (23) are provided with driving grooves, driving gears (24) are installed in the driving grooves, and the driving gears (24) are installed in the driving grooves through driving shafts; toothed belts are arranged on the upper groove wall and the lower groove wall of the clamping groove (42), and the toothed belts are meshed with the driving gear (24); the driving shaft is connected with a driving motor, and the driving motor is electrically connected with the controller.

5. The COD and ammonia nitrogen removing device for wastewater treatment according to claim 1, characterized in that: six groups of stirring plates (3) are correspondingly arranged on one sleeve (4), and the included angle between every two adjacent stirring plates (3) is 60 degrees; the surface of the stirring plate (3) is provided with a plurality of strip-shaped through holes (32), and the through holes (32) are uniformly arranged.