A catalytic ozone oxidation integrated wastewater treatment device

Abstract

The present invention discloses a catalytic ozone oxidation integrated wastewater treatment device, comprising: a reaction tank, the reaction tank having a water inlet and a water outlet located on one side of the water inlet, and the height of the water outlet is higher than the height of the water inlet; a partition is provided inside the reaction tank for allowing water at the water inlet to flow to the water outlet in sequence; there are multiple partitions, and the partitions are arranged at intervals from the water inlet to the water outlet to form a reaction zone for water flow between any two adjacent partitions, and a catalytic bed is installed inside each reaction zone. The present invention divides the reaction tank into multiple reaction zones, so that the sewage can enter the reaction tank from the water inlet and pass through each reaction chamber in sequence before being discharged from the water outlet, thereby effectively increasing the residence time of the sewage in the reaction tank and improving the treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a catalytic ozone oxidation integrated wastewater treatment device. Background Art

[0002] With the rapid development of industry, a large amount of wastewater is generated while the economy grows, especially toxic and harmful organic wastewater that is difficult to degrade. Direct discharge causes great pollution to surface water. Conventional water treatment processes such as biological methods cannot degrade it to meet the corresponding emission standards. Therefore, advanced oxidation technology is considered to degrade such toxic and harmful organic wastewater, reduce its toxicity, and improve its biodegradability. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a catalytic ozone oxidation integrated wastewater treatment device.

[0004] The present invention proposes a catalytic ozone oxidation integrated wastewater treatment device, comprising: a reaction tank, wherein a plurality of reaction zones arranged in sequence and interconnected by overflow are provided inside the reaction tank, a catalytic bed is installed inside each reaction zone, and the first reaction zone has a water inlet, and the last reaction zone has a water outlet.

[0005] Preferably, the catalyst bed is made of microporous material, and a catalyst storage channel arranged in a serpentine shape along the height direction of the reaction tank is provided inside the catalyst bed.

[0006] Preferably, the top of the reaction tank is provided with a feeding port communicating with the top end of the catalyst storage channel, and the side wall thereof is provided with a discharge port communicating with the bottom end of the catalyst storage channel.

[0007] Preferably, a storage tower for storing the catalyst is provided on the top of the reaction tank, and the storage tower is connected to the feed inlet of each catalyst bed respectively.

[0008] Preferably, an exhaust port is opened at the top of the storage tower.

[0009] Preferably, rollers are installed at the bottom of the reaction tank.

[0010] Preferably, the reaction tank is provided with an air distribution plate for dividing its inner cavity into upper and lower chambers and an aeration disk located below the air distribution plate; the water inlet, water outlet, and catalyst bed are all located above the air distribution plate, and the height of the water outlet is higher than the height of the water inlet.

[0011] Preferably, the reaction tank comprises a base and a tank body, wherein the tank body is fixed to the base by threaded assembly and cooperates with the base to form a chamber therebetween.

[0012] Preferably, a plurality of partitions are provided inside the reaction tank, and the partitions cooperate with each other to divide the interior of the reaction tank into a plurality of regions to form reaction zones.

[0013] Preferably, the inner cavity of the reaction tank is a cylindrical cavity, and four partitions are provided. The four partitions are arranged in a cross shape to divide the inner cavity of the reaction tank into four reaction zones circumferentially arranged around its center line; the water inlet and the water outlet are respectively arranged on the side walls of two adjacent reaction zones, and the height of the partition between the reaction zone where the water inlet is located and the reaction zone where the water outlet is located is higher than the heights of the other partitions.

[0014] In the present invention, the reaction tank is arranged into a plurality of reaction zones, the water inlet is arranged in the first reaction zone, and the water outlet is arranged in the last reaction zone, so that the sewage enters the reaction tank from the water inlet and passes through each reaction chamber in sequence before being discharged from the water outlet, thereby effectively increasing the residence time of the sewage in the reaction tank and improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a catalytic ozone oxidation integrated wastewater treatment device proposed for the invention. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is described in detail below through specific embodiments.

[0017] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a catalytic ozone oxidation integrated wastewater treatment device proposed for the invention.

[0018] Reference Figure 1 The present invention proposes a catalytic ozone oxidation integrated wastewater treatment device, comprising: a plurality of reaction zones c arranged in sequence and interconnected by overflow are arranged inside the reaction tank 7, a catalytic bed 2 is installed inside each reaction zone c, and the first reaction zone c has a water inlet a, and the last reaction zone c has a water outlet b.

[0019] The present invention divides the reaction tank 7 into a plurality of reaction zones c, sets the water inlet a in the first reaction zone c, and sets the water outlet b in the last reaction zone c, so that the sewage enters the reaction tank 7 from the water inlet a and passes through each reaction chamber in sequence before being discharged from the water outlet b, thereby effectively increasing the residence time of the sewage in the reaction tank 7 and improving the treatment efficiency.

[0020] In addition, in this embodiment, the catalyst bed 2 is made of microporous material, and a catalyst storage channel arranged in a serpentine shape along the height direction of the reaction tank 7 is provided inside the catalyst bed 2, so that the catalyst storage channel forms a folded plate structure, which can increase the contact area between the catalyst and the sewage on the one hand, and complete the flow of the catalyst inside it by gravity on the other hand. And in order to facilitate the replacement of the catalyst in the catalyst storage channel, in this embodiment, a feeding port connected to the top of the catalyst storage channel is provided at the top of the reaction tank 7, and a discharge port d connected to the bottom of the catalyst storage channel is provided on its side wall. When replacing the catalyst, the discharge port d is opened to empty the inactive catalyst in the catalyst storage channel, and then the discharge port d is closed, and the material can be re-fed.

[0021] In this embodiment, a storage tower 3 for storing the catalyst is provided on the top of the reaction tank 7, and the storage tower 3 is respectively connected to the feeding port of each catalyst bed 2, so as to facilitate the simultaneous feeding of each catalyst bed 7. At the same time, taking full account of the pollution of the atmospheric environment by the unreacted ozone and volatile pollutants in the tail gas, an exhaust port is provided on the top of the storage tower 3 in this embodiment, so that the gas in the tank is discharged after being purified by the storage tower 3. This arrangement reduces the cost on the one hand, and can effectively remove pollutants in the tail gas through catalysis and adsorption on the other hand.

[0022] In this embodiment, rollers 4 are installed at the bottom of the reaction tank 7. The arrangement of the rollers 4 facilitates the movement without requiring on-site construction, thereby greatly reducing construction costs and time.

[0023] In this embodiment, the reaction tank 7 is provided with an air distribution plate 5 for dividing its inner cavity into upper and lower chambers and an aeration plate 6 located below the air distribution plate 5; the water inlet a, the water outlet b, and the catalytic bed 2 are all located above the air distribution plate 5, and the height of the water outlet b is higher than the height of the water inlet a, so as to further improve the sewage treatment effect.

[0024] In this embodiment, the reaction tank 7 includes a base 71 and a tank body 72, wherein the tank body 72 is fixed to the base 71 by threaded assembly and cooperates with the base 71 to form a chamber therebetween. This structural arrangement ensures that ozone does not leak to pollute the atmospheric environment, and facilitates maintenance or replacement of the aeration disk 6 and the air distribution plate 5.

[0025] In this embodiment, a plurality of partitions 1 are provided inside the reaction tank 7, and each partition 1 cooperates with each other to divide the interior of the reaction tank 7 into a plurality of areas to form a reaction zone c. The inner cavity of the reaction tank 7 is a cylindrical cavity, and four partitions 1 are provided. The four partitions 1 are arranged in a cross shape to divide the inner cavity of the reaction tank 7 into four reaction zones c which are circumferentially arranged around its center line, namely, the first reaction zone, the second reaction zone, the third reaction zone, and the fourth reaction zone; the water inlet a is provided on the side wall of the first reaction zone, the water outlet b is provided on the side wall of the fourth reaction zone, and the height of the partition 1 between the first reaction zone and the second reaction zone is higher than the height of the other partitions 1, so that after the sewage enters the first reaction zone where it is located through the water inlet a, it enters the second reaction zone, the third reaction zone, and the fourth reaction zone in turn by overflow, and flows out from the water outlet b of the fourth reaction zone.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A catalytic ozone oxidation integrated wastewater treatment device, characterized in that: include: A reaction tank (7), wherein a plurality of reaction zones (c) arranged in sequence and connected to each other by overflow are provided inside the reaction tank (7), a catalyst bed (2) is installed inside each reaction zone (c), and the first reaction zone (c) has a water inlet (a), and the last reaction zone (c) has a water outlet (b); The reaction tank (7) has a water inlet (a) and a water outlet (b), and the height of the water outlet (b) is higher than the height of the water inlet (a); a partition (1) is provided inside the reaction tank (7) for allowing water at the water inlet (a) to flow to the water outlet (b) in sequence; a plurality of partitions (1) are provided, and the partitions (1) are arranged at intervals in the direction from the water inlet (a) to the water outlet (b) so as to form a reaction zone (c) for water flow to flow between any two adjacent partitions (1), and a catalyst bed (2) is installed inside each reaction zone (c); A storage tower (3) for storing the catalyst is provided on the top of the reaction tank (7), and the storage tower (3) is respectively connected to the feeding port of each catalyst bed (2); an exhaust port is provided on the top of the storage tower (3) so that the gas in the tank can be discharged after being purified by the storage tower (3); The top of the reaction tank (7) is provided with a feeding port communicating with the top end of the catalyst storage channel, and the side wall thereof is provided with a discharge port (d) communicating with the bottom end of the catalyst storage channel; The reaction tank (7) is provided with an air distribution plate (5) for dividing its inner cavity into upper and lower chambers, and an aeration plate (6) located below the air distribution plate (5); the water inlet (a), the water outlet (b), and the catalyst bed (2) are all located above the air distribution plate (5), and the height of the water outlet (b) is higher than the height of the water inlet (a).

2. The catalytic ozone oxidation integrated wastewater treatment device according to claim 1 is characterized in that: The catalyst bed (2) is made of a microporous material, and a catalyst storage channel arranged in a serpentine shape along the height direction of the reaction tank (7) is provided inside the catalyst bed (2).

3. The catalytic ozone oxidation integrated wastewater treatment device according to claim 1 is characterized in that: A roller (4) is installed at the bottom of the reaction tank (7).

4. The catalytic ozone oxidation integrated wastewater treatment device according to any one of claims 1 to 3, characterized in that: The reaction tank (7) comprises a base (71) and a tank body (72), wherein the tank body (72) is fixed to the base (71) by means of threaded assembly and cooperates with the base (71) to form a chamber therebetween.

5. The catalytic ozone oxidation integrated wastewater treatment device according to claim 4 is characterized in that: The inner cavity of the reaction tank (7) is a cylindrical cavity, and four partitions (1) are provided. The four partitions (1) are arranged in a cross shape to divide the inner cavity of the reaction tank (7) into four reaction zones (c) circumferentially arranged around the center line thereof; the water inlet (a) and the water outlet (b) are respectively arranged on the side walls of two adjacent reaction zones (c), and the height of the partition (1) located between the reaction zone (c) where the water inlet (a) is located and the reaction zone (c) where the water outlet (b) is located is higher than the heights of the other partitions (1).

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