Ozone and membrane module combined wastewater treatment reaction device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to an ozone and membrane module combined wastewater treatment reaction device. Comprising a shell, a first membrane assembly, a second membrane assembly, a gas cavity, a reaction cavity and a water purification cavity, the gas cavity, the reaction cavity and the water purification cavity are isolated in the shell through pore plates, the gas cavity and the water purification cavity are located on the inner side and the outer side of the reaction cavity, and a water inlet, a gas inlet, a water outlet and a slag outlet are formed outside the shell; the second membrane component is attached to the outer side of the water purification cavity. Compared with an existing ozone oxidation technology and an existing membrane treatment technology, the technical scheme has the remarkable advantages that solid-liquid separation can be achieved on products obtained after wastewater treatment, the product treatment cost is greatly reduced, meanwhile, the utilization efficiency of ozone is improved through the arranged membrane assembly, and great application and popularization value is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely relates to a kind of ozone and membrane assembly combined wastewater treatment reaction device. BACKGROUND

[0002] With advanced oxidation technology such as ozone technology etc. for wastewater treatment field, wastewater advanced treatment obtains great popularization and use, but how to improve the utilization efficiency of ozone and product separation is a thorny matter.

[0003] The utilization rate of traditional ozone aeration technology is low, the system is unstable, which leads to low mass transfer efficiency between ozone, catalyst and pollutants in wastewater, not only limits the ability of treating wastewater with ozone, but also wastes a lot of ozone. SUMMARY

[0004] In view of the above technical deficiencies, the utility model aims at providing a kind of ozone and membrane assembly combined wastewater treatment reaction device to improve the utilization efficiency of ozone, and the decomposition product can be effectively separated.

[0005] In order to achieve the above purpose, the utility model provides a kind of ozone and membrane assembly combined wastewater treatment reaction device, including shell, gas cavity, reaction cavity, clean water cavity, first membrane assembly, second membrane assembly, water inlet, gas inlet, drain and discharge port, the water inlet, gas inlet, drain and discharge port are arranged at the outside of shell, the gas cavity, reaction cavity, clean water cavity are arranged in the inside of shell, the first membrane assembly is pasted on the outside of reaction cavity, the second membrane assembly is pasted on the outside of clean water cavity.

[0006] The hole plate in the application refers to the plate with holes, such as punched stainless steel or glass steel, mainly used to isolate the shell to form chamber, and support the first membrane assembly and the second membrane assembly, the first membrane assembly is located on the hole plate isolating the gas cavity and the reaction cavity and leans towards the reaction cavity, and the second membrane assembly is located on the hole plate isolating the clean water cavity and the reaction cavity and leans towards the side of the reaction cavity.

[0007] The reaction device of the application works as follows: wastewater enters into the reaction cavity through the water inlet; ozone enters into the gas cavity through the gas inlet; because the first membrane assembly is installed between the gas cavity and the reaction cavity, by controlling the pressure difference, only gas is allowed to pass through, wastewater cannot enter into the inside of the gas cavity, so as to ensure that ozone can enter into the reaction cavity through the membrane assembly to react with wastewater, so as to remove ammonia nitrogen and other substances in wastewater; the first membrane assembly plays the role of uniform distribution of ozone, so as to increase the contact area of wastewater and ozone, and then increase the oxidation reaction time, so as to efficiently utilize ozone; in addition, the second membrane assembly arranged outside the clean water cavity isolates the clean water cavity and the reaction cavity, the second membrane assembly can effectively intercept large particle substances through the micropores thereon, so that the clean water entering into the clean water cavity can be recycled.

[0008] As a preferred solution, for the stability of the equipment, the shell, gas chamber, reaction chamber and water purification chamber are all welded together to avoid equipment cracking caused by excessive gas or wastewater pressure.

[0009] As a preferred option, in order to increase the contact area between wastewater and ozone, improve the reaction speed, and prevent wastewater from entering the gas cavity, the first membrane component can choose a conventional structure on the market, such as corrosion-resistant materials such as metal, which are low-priced and easy to purchase.

[0010] As a preferred solution, in order to reduce the cost of the shell, the shell, reaction chamber and water purification chamber adopt a conventional round tank shape.

[0011] As a preferred solution, in order to facilitate intelligent control of the system, the slag discharge port is provided with an electric valve.

[0012] As a preferred solution, in order to facilitate the discharge of water after the reaction, the drain port is located at the bottom of the water purification chamber.

[0013] The device using the technical solution of this utility model has the following technical effects:

[0014] (1) This device uses a combination of ozone and membrane components to treat wastewater, achieving the effect of 1+1>2. The purified water can be recycled, making full use of the advantages of ozone and membrane.

[0015] (2) The waterproof and breathable first membrane components of the reaction device are evenly distributed on the outside of the reaction chamber. While blocking wastewater from entering the gas chamber, a large area of ​​ozone can be allowed to enter the reaction chamber from the gas chamber, thereby increasing the contact area between ozone and wastewater and increasing the contact time between ozone and wastewater, thereby greatly improving the utilization efficiency of ozone, reducing the content of pollutants, achieving efficient reaction, and reducing costs.

[0016] (3) The microporous structure of the second membrane component coated on the outside of the water purification chamber can effectively intercept large particles, reduce or intercept all products entering the water purification system, and improve the purity of the water recovered after the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the reaction device in Example 1 of the present invention.

[0018] Figure Number

[0019] Shell 1, gas chamber 2, reaction chamber 3, water purification chamber 4, first membrane assembly 5, second membrane assembly 6, water inlet 7, air inlet 8, drain outlet 9, slag discharge outlet 10. DETAILED DESCRIPTION

[0020] The following is further described in detail through specific implementation methods:

[0021] Example 1

[0022] like Figure 1 As shown, this embodiment provides a reaction device for combined treatment of wastewater by ozone and membrane assembly, comprising a shell 1, a gas chamber 2, a reaction chamber 3 and a clean water chamber 4. The shell 1 is a round tank made of carbon steel. A water inlet 7, an air inlet 8, a drain port 9 and a slag discharge port 10 are installed on the shell 1. The gas chamber 2, the reaction chamber 3 and the clean water chamber 4 are separated by a orifice plate. The orifice plate is connected to the shell 1 by welding. The gas chamber 2 is circumferentially arranged on the inner wall of the shell 1 and is formed by a combination of the inner wall of the shell 1 and the orifice plate. The clean water chamber 4 is cylindrical and is separated by the orifice plate in the middle of the shell 1. A reaction chamber 3 is formed between the gas chamber 2 and the clean water chamber 4. The orifice plate can be made of corrosion-resistant materials such as stainless steel and fiberglass. In order to prevent wastewater from entering the gas chamber 2, the preferred solution is to attach a circle of first membrane assembly 5 to the outside of the reaction chamber 3. The first membrane assembly 5 plays a waterproof and breathable role. The innovative configuration of the first membrane assembly 5 can effectively prevent the wastewater in the reaction chamber 3 from entering the gas chamber 2, ensuring the purity and safety of the ozone in the gas chamber 2. The first membrane assembly 5 can be made of a metal membrane that is cheap and easy to purchase on the market. At the same time, in order to prevent the waste after the reaction from entering the clean water chamber 4, the preferred solution is to set a second membrane assembly 6 that can intercept large particles. Specifically, the second membrane assembly 6 can be wrapped around the outside of the clean water chamber 4 to reduce or avoid waste salt and other products from entering the water purification system, thereby ensuring that the clean water enters the clean water chamber 4 and improving the purity of the recycled water. This embodiment uses three independent chambers for reaction, which not only improves the reaction efficiency but also improves the purity of the clean water.

[0023] The operation process of this device is as follows: first, open the air inlet 8, introduce ozone, and fill the gas chamber 2 with ozone. At the same time, the ozone passes through the first membrane component 5 and fills the reaction chamber 3. At the same time, open the water inlet 7 and introduce wastewater into the reaction chamber 3. The wastewater reacts under the action of ozone to remove pollutants such as COD and ammonia nitrogen. The reacted substances enter the slag discharge port 10 at the bottom of the reaction chamber 3 and are discharged from the system. The purified water enters the water purification chamber 4 and is discharged from the system through the drain port 9 for recycling. Figure 1 The arrows in the figure indicate the flow direction of the main substances in each chamber.

[0024] Preferably, under the action of a high-pressure blower, high-pressure ozone is sprayed into the gas chamber 2 through the air inlet 8, enters the reaction chamber 3 through the first membrane assembly 5, and is fully mixed and reacted with the wastewater entering the reaction chamber 3 through the water inlet 7. Under high-pressure conditions, ozone will form tiny bubbles with the wastewater, react with the wastewater, remove organic matter such as COD, and the wastewater will meet the discharge standards.

[0025] Preferably, the water inlet 7, air inlet 8, drain outlet 9 and slag discharge outlet 10 are all controlled by electric valves, wherein the valve body is made of carbon steel and the valve plate is made of stainless steel. The use of electric valves can reduce labor costs and improve efficiency on the one hand, and on the other hand, after judging by relevant indicators, it can timely control the discharge of qualified wastewater.

[0026] It should be noted in advance that, in this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A wastewater treatment reaction device using ozone and membrane modules, characterized by: It includes a shell and a gas chamber, a reaction chamber and a water purification chamber formed in the shell by means of a perforated plate. The gas chamber and the water purification chamber are located on the inner and outer sides of the reaction chamber. The shell is provided with a water inlet, an air inlet, a water outlet and a slag outlet. The gas cavity is used to contain ozone, the air inlet is connected to the gas cavity, and a first membrane assembly is provided outside the gas cavity; The reaction chamber is used to provide a place for ozone and wastewater to react, and the water inlet and the slag discharge port are connected to the reaction chamber; The water purification chamber is used to accommodate treated water, the drain port is connected to the water purification chamber, and a second membrane assembly is provided outside the water purification chamber.

2. The wastewater treatment reaction device for combined ozone and membrane assembly according to claim 1, characterized in that: The shell is in the shape of a round can.

3. The wastewater treatment reaction device of ozone and membrane assembly combined with wastewater treatment according to claim 1 or 2, characterized in that: The gas cavity is circumferentially arranged on the inner side wall of the shell.

4. The wastewater treatment reaction device for combined ozone and membrane assembly according to claim 1 or 2, characterized in that: The water purification chamber is cylindrical and is arranged in the middle of the shell.

5. The wastewater treatment reaction device for combined ozone and membrane assembly according to claim 1, characterized in that: The first membrane assembly is in direct contact with the water in the reaction chamber and is used to separate ozone and wastewater, so that ozone can pass through the first membrane assembly and wastewater is prevented from entering the gas chamber.

6. The wastewater treatment reaction device for combined ozone and membrane assembly according to claim 1, characterized in that: The second membrane assembly is in direct contact with the water in the reaction chamber, and is used to filter the water in the reaction chamber and intercept large particles after the reaction.

7. The wastewater treatment reaction device for combined ozone and membrane assembly according to claim 1, characterized in that: The slag discharge port is provided with a valve for intermittent slag discharge.

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