CN212476355U

CN212476355U - Micro-nano ozone catalysis effluent treatment plant and system thereof

Info

Publication number: CN212476355U
Application number: CN202020514729.1U
Authority: CN
Inventors: 陈武峰
Original assignee: Suzhou Qingkun Environmental Protection Technology Co ltd
Current assignee: Suzhou Qingkun Environmental Protection Technology Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-02-05
Anticipated expiration: 2030-04-09

Abstract

The utility model provides a micro-nano ozone catalysis effluent treatment plant and system thereof, including the water supply chamber, the process chamber with retrieve the chamber, the process chamber is located the below of retrieving the chamber, the water supply chamber is located the below of process chamber, the water supply cavity surface is equipped with the water inlet of being connected with the external world, the water inlet passes through the intake pump and is connected with micro-nano bubble generator, micro-nano bubble generator's air inlet and ozone generator are connected, the process chamber is equipped with the catalyst, the process chamber top is equipped with the puddler, the upper portion of process chamber is passed through the pipeline and is retrieved the chamber and be connected, it is equipped with the separation catalyst membrane module to retrieve the intracavity, other materials in aquatic are discharged from the delivery port that is located the recovery chamber top after passing through the membrane module, the. The utility model discloses following technological effect has: the problem of rapid reduction of ozone transfer efficiency caused by scaling of the microporous aeration device is solved, the operation stability in high-salt and high-hardness wastewater treatment is outstanding, the operation management is simple, and the cost is low.

Description

Micro-nano ozone catalysis effluent treatment plant and system thereof

Technical Field

The utility model belongs to the technical field of sewage treatment technique and specifically relates to a micro-nano ozone catalysis effluent treatment plant and system thereof

Background

With the continuous concern of the state on the quality of ecological environment and the water pollution state caused by industrial production, the corresponding industrial wastewater discharge standard is continuously improved. The industrial wastewater contains a large amount of refractory organic matters, has the characteristics of complex components, stable chemical structure and strong biological toxicity, is difficult to effectively degrade in the traditional wastewater biochemical treatment process, becomes the main composition of residual organic matters in industrial tail water, and causes the industrial wastewater to be difficult to stably discharge up to the standard. Ozone advanced treatment is a rapid advanced treatment process developed in recent years, and utilizes the strong oxidizing property of ozone to oxidize, degrade and finally mineralize organic matters in wastewater. However, ozone has strong selectivity, the reaction rate is low for organic matters with certain specific chemical structures, and the treatment effect is difficult to stabilize under the condition that the water quality of wastewater is variable. Compared with ozone oxidation, the ozone catalytic oxidation technology promotes the decomposition of ozone to produce free radicals by introducing a catalyst, and can effectively remove organic matters which are difficult to oxidize and degrade by using the undifferentiated oxidation capability of the free radicals. The final reaction products of the technology are oxygen, carbon dioxide and water, no secondary pollution exists, the technology is an environment-friendly treatment technology, and the technology has good development prospect and market capacity in the field of treatment of various industrial wastewater.

However, the existing ozone catalytic oxidation technology has the following problems in practical engineering application: (1) the ozone transfer efficiency is sharply reduced along with the scaling of the microporous aeration device, the ozone utilization efficiency is extremely low, and the operating cost is greatly increased; (2) the fixed bed reactor is easy to have the condition of bed layer blockage or hardening, and the process is difficult to stably operate; (3) the ozone catalyst is difficult to replace and high in cost. The above problems have largely restricted the wide application of this technology.

SUMMERY OF THE UTILITY MODEL

The utility model provides a micro-nano ozone catalysis effluent treatment plant, includes water supply chamber, treatment chamber and retrieves the chamber, the treatment chamber is located the below of retrieving the chamber, the water supply chamber is located the below of treatment chamber, the water supply intracavity is equipped with intake pump, micro-nano bubble generator, ozone generator, the water supply cavity surface is equipped with the water inlet of being connected with the external world, the water inlet passes through the intake pump and is connected with micro-nano bubble generator, micro-nano bubble generator's air inlet is connected with ozone generator, the treatment chamber is equipped with the catalyst, the treatment chamber top is equipped with the puddler, the upper portion of treatment chamber is passed through the pipeline and is retrieved the chamber and be connected, it is equipped with the separation catalyst membrane module to retrieve the intracavity, other materials of aquatic are discharged from the delivery port that is located the recovery chamber top after passing through.

Further, a catalyst charging opening is formed in the top of the treatment cavity.

Furthermore, a concentration detector is arranged at the lower part of the recovery cavity.

Furthermore, a membrane component with selective permeability is arranged in the recovery cavity.

Further, the average particle size of the catalyst is 80-100 meshes.

Further, the separation catalyst membrane component is a ceramic membrane made of silicon carbide or aluminum oxide.

Further, the membrane aperture of the ceramic membrane is 0.02-0.2 um.

The utility model provides a micro-nano ozone catalysis waste water treatment, its characterized in that, includes foretell micro-nano ozone catalysis waste water treatment device, and the intake pond is connected with the water inlet, and the tank storage is connected with the delivery port.

Furthermore, the bottom of the water storage tank is also provided with a circulation port which is connected with the water inlet.

Adopt the technical scheme of the utility model, following technological effect has:

(1) this device and system contact with the catalyst after through micro-nano bubble generator, ozone generator with sewage mixture, and the catalyst returns the treatment chamber recycle under the effect of recycle pump, compares with the traditional ozone mode of throwing through micropore aeration device, does not have the ozone transfer efficiency that micropore aeration device scale deposit leads to and sharply reduces the problem, and operating stability is outstanding in high salt, high rigidity waste water treatment, and the operation management is simple, low cost.

(2) The utility model discloses used catalyst, carrier form, average particle diameter is 0.15 ~ 0.18mm (80 ~ 100 mesh), increases 4 ~ 8 times than traditional fixed bed catalyst (3 ~ 5mm) specific surface area, and the catalystThe surface area is large, the adsorption capacity is strong, and highly dispersed micro-nano ozone bubbles are enriched on the surface of the catalyst, so that the contact area of the ozone bubbles and liquid and the retention time of the ozone bubbles are greatly increased, and the ozone utilization rate is greatly improved; in the operation state, the catalyst used by the invention is in a completely mixed state with the wastewater and the ozone in the reactor, and the mass transfer rate of the organic matters and the ozone is greatly higher than that of a fixed bed reactor; on the catalytic activity, a novel active metal is loaded, compared with the traditional Fe²⁺、Co²⁺、Cu²⁺The catalyst has stronger catalytic effect, extremely high ozone utilization rate and can effectively remove refractory organic matters in various industrial wastewater.

(3) The utility model discloses a carborundum or alumina ceramic membrane separate catalyst and waste water, have solved the easy problem that runs off of powdered catalyst, have avoided adopting the flux decay problem that organic separation membrane leads to under ozone long-term attack simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus according to a first embodiment.

Fig. 2 is a schematic system structure diagram according to the first embodiment.

The device comprises a water supply cavity 1, a treatment cavity 2, a recovery cavity 3, a water inlet pump 11, a micro-nano bubble generator 12, an ozone generator 13, a water inlet 14, a catalyst 21, a stirring rod 22, a catalyst feed inlet 23, a catalyst separation membrane component 31, a water outlet 32, a recovery pump 33, a concentration detector 34, a water inlet pool 5, a water storage pool 6, a water discharge pump 7 and a water discharge outlet 8.

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.

The first embodiment is as follows:

the utility model provides a micro-nano ozone catalysis effluent treatment plant, includes water supply chamber 1, treatment chamber 2 and retrieves chamber 3, treatment chamber 1 is located the below of retrieving chamber 2, water supply chamber 3 is located the below of treatment chamber 2, is equipped with intake pump 11, micro-nano bubble generator 12, ozone generator 13 in the water supply chamber 1, and water supply chamber surface is equipped with the water inlet 14 of being connected with the external world, and water inlet 14 is connected with micro-nano bubble generator 12 through intake pump 11, through intake pump 11's effect, can inhale micro-nano bubble generator 12 with sewage from water inlet 14 in, micro-nano bubble generator 12's air inlet and ozone generator 13 are connected, and ozone generator 13 forms with the sewage mixture in inputing to micro-nano generator 12 with oxygen.

The water outlet of the micro-nano bubble generator 12 is connected with the treatment cavity 2, so that sewage containing micro-nano bubbles is transmitted into the treatment cavity 2, a catalyst 21 is arranged in the treatment cavity 2, and the average particle size of the catalyst 21 is 0.15-0.18 mm, namely 80-100 meshes. 2 tops in treatment chamber 2 are equipped with puddler 22, and the sewage of micro-nano bubble contacts with catalyst 21 in treatment chamber 2, and puddler 22 rotates and drives the rivers motion for sewage and catalyst fully contact carry out sewage treatment. The top of the processing chamber 2 is provided with a catalyst feed port 23, and when the catalyst in the processing chamber 2 is small, the catalyst can be fed through the feed port 23.

The top of the treatment cavity 2 is connected with the recovery cavity 3 through a pipeline, a separation catalyst membrane component 31 is arranged in the recovery cavity 3, the separation catalyst membrane component is a ceramic membrane made of silicon carbide or alumina, and the membrane aperture of the ceramic membrane is 0.02-0.2 um. When the treated water passes through the membrane module 31, other substances in the water pass through the membrane module and are discharged from the water outlet 32 positioned above the recovery chamber, and the catalyst is blocked by the membrane module 31 and is returned to the treatment chamber 2 for recycling under the action of the recovery pump 33. The lower part of the recovery cavity 3 is provided with a concentration detector 34 for detecting the concentration of water in the recovery cavity 3, when the concentration is higher than the threshold value, the controller controls the recovery pump 33 to work, the water and the catalyst in the recovery cavity are pumped back to the treatment cavity 2, when the concentration is lower than the threshold value, the recovery pump stops working, and the catalyst can be effectively recovered by controlling the working state of the recovery pump 33.

The utility model provides a wastewater treatment system, including above-mentioned micro-nano ozone catalysis effluent treatment plant A, wastewater treatment system still includes intake chamber 5 and tank 6, intake chamber 5 is connected with water inlet 14, thereby transmit the sewage in the intake chamber 5 to water inlet 14 and carry out sewage treatment, tank 6 is connected with delivery port 32, the log raft after micro-nano ozone catalysis effluent treatment plant A handles is discharged to tank 6, then the outlet through tank 6, tank 6 bottom still is equipped with the circulation mouth, the circulation mouth is connected with water inlet 14, when the circulation mouth is opened, the water of tank 6 can get into micro-nano ozone catalysis effluent treatment plant A at inferior and handle.

The technical scheme of the first embodiment has the following advantages:

1. this device and system contact with the catalyst after through micro-nano bubble generator, ozone generator with sewage mixture, and the catalyst returns the treatment chamber recycle under the effect of recycle pump, compares with the traditional ozone mode of throwing through micropore aeration device, does not have the ozone transfer efficiency that micropore aeration device scale deposit leads to and sharply reduces the problem, and operating stability is outstanding in high salt, high rigidity waste water treatment, and the operation management is simple, low cost.

2. The catalyst is used, the carrier shape has the average particle size of 0.15-0.18 mm (80-100 meshes), the specific surface area is increased by 4-8 times compared with the traditional fixed bed catalyst (3-5 mm), the catalyst is large in surface area and strong in adsorption capacity, highly dispersed micro-nano ozone bubbles are enriched on the surface of the catalyst, the contact area of the ozone bubbles and liquid is greatly increased, the retention time of the ozone bubbles is greatly prolonged, and the ozone utilization rate is greatly improved; in the operation state, the catalyst used by the invention is in a completely mixed state with the wastewater and the ozone in the reactor, and the mass transfer rate of the organic matters and the ozone is greatly higher than that of a fixed bed reactor; on the catalytic activity, a novel active metal is loaded, compared with the traditional Fe²⁺、Co²⁺、Cu²⁺The catalyst has stronger catalytic effect, extremely high ozone utilization rate and can effectively remove refractory organic matters in various industrial wastewater.

3. The silicon carbide or alumina ceramic membrane is adopted to separate the catalyst and the wastewater, so that the problem that the powdery catalyst is easy to run off is solved, and the flux attenuation problem caused by adopting an organic separation membrane under the long-term ozone attack is avoided.

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 micro-nano ozone catalysis effluent treatment plant, a serial communication port, including water supply chamber, treatment chamber and recovery chamber, the treatment chamber is located the below of retrieving the chamber, the water supply chamber is located the below of treatment chamber, the water supply intracavity is equipped with intake pump, micro-nano bubble generator, ozone generator, the water supply cavity surface is equipped with the water inlet of being connected with the external world, the water inlet passes through the intake pump and is connected with micro-nano bubble generator, micro-nano bubble generator's air inlet and ozone generator are connected, the treatment chamber is equipped with the catalyst, the treatment chamber top is equipped with the puddler, the upper portion of treatment chamber is passed through the pipeline and is retrieved the chamber and is connected, it is equipped with the separation catalyst membrane module to retrieve the intracavity, other materials in the aquatic discharge from the delivery port that is located recovery chamber top behind the membrane module.

2. The micro-nano ozone catalysis wastewater treatment device of claim 1, wherein a catalyst charging port is arranged at the top of the treatment cavity.

3. The micro-nano ozone catalysis wastewater treatment device of claim 1, wherein a concentration detector is arranged at the lower part of the recovery cavity.

4. The micro-nano ozone catalysis wastewater treatment device of claim 1, wherein a membrane module with selective permeability is further arranged in the recovery cavity.

5. The micro-nano ozone catalysis wastewater treatment device of claim 1, wherein the average particle size of the catalyst is 80-100 meshes.

6. The micro-nano ozone catalysis wastewater treatment device of claim 1, wherein the separation catalyst membrane component is a ceramic membrane made of silicon carbide or aluminum oxide.

7. The micro-nano ozone catalysis wastewater treatment device of claim 6, wherein the membrane aperture of the ceramic membrane is 0.02-0.2 um.

8. A micro-nano ozone catalysis wastewater treatment system is characterized by comprising the micro-nano ozone catalysis wastewater treatment device as claimed in any one of claims 1 to 5, wherein a water inlet tank is connected with a water inlet, and a water storage tank is connected with a water outlet.

9. The micro-nano ozone catalysis wastewater treatment system of claim 8, wherein the bottom of the water storage tank is further provided with a circulation port, and the circulation port is connected with the water inlet.