Device for treating and recycling high-concentration organic waste liquid

Abstract

A high-concentration organic waste liquid treating and recycling device relates to the technical field of chemical equipment and comprises a high-concentration wastewater pool, a cold water pool, a gas stripping tower, a condensing tower and an ammonia washing tower, and the high-concentration wastewater pool is connected with the gas stripping tower through a pipeline; the top end of the stripping tower is connected with a condensing tower through a pipeline; the condensing tower is connected with a cold water tank through a cooling water pipeline; the upper part of the condensing tower is connected with a cooling tower through a pipeline; the cooling tower is connected with the cold water tank through a pipeline; the middle of the ammonia washing tower is connected with a cooling water pipeline through a pipeline, the bottom of the ammonia washing tower is connected with the upper portion of the ammonia washing tower through a circulating pipeline, the ammonia washing tower is further connected with a cooling tower through a pipeline, and a fresh water outlet pipe is arranged at the top end of the ammonia washing tower. According to the high-concentration organic waste liquid treating and recycling device, through the gas stripping tower, the condensing tower and the ammonia washing tower, strong basicity of high-concentration organic waste water is effectively removed, ammonia components are removed, and ammonia water is recycled in an environment-friendly mode.

Description

Technical Field:

[0001] The utility model relates to the technical field of chemical equipment, and particularly relates to a device for treating and recycling high-concentration organic waste liquid. Background Art:

[0002] With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. Due to the more complex composition of industrial wastewater and some of it being toxic, the treatment of industrial wastewater is more difficult and important than that of urban sewage. In the ultra-high-concentration organic wastewater generated by industry, there are many acids and alkalis, and it often has strong acidity or alkalinity. First, the aerobic hazard: Due to biodegradation, high-concentration organic wastewater will cause the receiving water body to be oxygen-deficient or even anaerobic, and most aquatic organisms will die, resulting in a foul smell and deteriorating water quality and the environment. Second, the sensory pollution: High-concentration organic wastewater not only makes the water body lose its use value, but also seriously affects the normal life of people near the water body. Third, the toxic hazard: Ultra-high-concentration organic wastewater contains a large amount of toxic organic substances, which will accumulate and store in natural environments such as water bodies and soils, and finally enter the human body, endangering human health. Therefore, there is an urgent need for a device for effectively treating high-concentration organic wastewater. Content of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned existing technologies, and provide a device for treating and recycling high-concentration organic waste liquid, which mainly solves the problem of strong alkalinity of high-concentration organic wastewater, that is, treating the ammonia component in high-concentration organic wastewater.

[0004] To solve the problems in the background art, the utility model adopts the following technical scheme: It includes a high-concentration wastewater tank, a cold water tank, a stripping tower, a condensation tower, and a ammonia washing tower. The high-concentration wastewater tank is connected to the stripping tower through a pipeline; a steam pipeline is provided at the bottom end of the stripping tower, a Roots blower is installed on the steam pipeline, and there is also an outlet pipeline at the bottom end of the stripping tower. The top end of the stripping tower is connected to the condensation tower through a pipeline. The condensation tower is connected to the cold water tank through a cooling water pipeline. The upper part of the condensation tower is connected to a cooling tower through a pipeline, and the cooling tower is connected to the cold water tank through a pipeline. The lower part of the condensation tower is connected to the ammonia washing tower through a pipeline. The middle part of the ammonia washing tower is connected to the cooling water pipeline through a pipeline. The bottom of the ammonia washing tower is connected to the upper part of the ammonia washing tower through a circulation pipeline, and a circulation pump is installed on the circulation pipeline. The ammonia washing tower is also connected to the cooling tower through a pipeline, and a fresh water outlet pipe is provided at the top end of the ammonia washing tower.

[0005] A lift pump one and a flow meter are provided on the pipeline connecting the high-concentration wastewater tank and the stripping tower.

[0006] The outlet pipeline is connected to the next section.

[0007] A lift pump two is installed on the cooling water pipeline.

[0008] An absorption solution pipeline is provided on the pipeline connecting the described condensation tower and the ammonia washing tower.

[0009] A chemical dosing tank is also provided on the pipeline connecting the described high-concentration wastewater tank and the stripping tower.

[0010] The beneficial effects of the present utility model are safety and reliability. Through the stripping tower, the condensation tower and the ammonia washing tower, the strong alkalinity of the high-concentration organic wastewater is effectively removed, the ammonia component is removed, and ammonia water is recycled environmentally friendly. Description of the drawings:

[0011] Figure 1 It is a schematic structural diagram of the present utility model. Specific implementation manners:

[0012] Referring to Figure 1 , the present utility model specifically adopts the following implementation manners: It includes a high-concentration wastewater tank 1, a cold water tank 10, a stripping tower 4, a condensation tower 6 and an ammonia washing tower 8. The high-concentration wastewater tank 1 is connected to the stripping tower 4 through a pipeline; a steam pipeline 3 is provided at the bottom of the stripping tower 4, a Roots blower 2 is installed on the steam pipeline 3, and there is also an outlet pipeline 5 at the bottom of the stripping tower 4. The top of the stripping tower 4 is connected to the condensation tower 6 through a pipeline. The condensation tower 6 is connected to the cold water tank 10 through a cooling water pipeline 15. The upper part of the condensation tower 6 is connected to a cooling tower 16 through a pipeline. The cooling tower 16 is connected to the cold water tank 10 through a pipeline. The lower part of the condensation tower 6 is connected to the ammonia washing tower 8 through a pipeline. The middle part of the ammonia washing tower 8 is connected to the cooling water pipeline 15 through a pipeline. The bottom of the ammonia washing tower 8 is connected to the upper part of the ammonia washing tower 8 through a circulation pipeline, and a circulation pump 9 is installed on the circulation pipeline. The ammonia washing tower 8 is also connected to the cooling tower 16 through a pipeline. A fresh water outlet pipe 14 is provided at the top of the ammonia washing tower 8. A lift pump one 12 and a flow meter 13 are provided on the pipeline connecting the high-concentration wastewater tank 1 and the stripping tower 4. The outlet pipeline 5 is connected to the next section. A lift pump two 17 is installed on the cooling water pipeline 15. An absorption solution pipeline 7 is provided on the pipeline connecting the condensation tower 6 and the ammonia washing tower 8. A chemical dosing tank 11 is also provided on the pipeline connecting the high-concentration wastewater tank 1 and the stripping tower 4.

[0013] This high-concentration organic waste liquid treatment and reuse device mainly treats the strong alkalinity of high-concentration organic wastewater, that is, mainly treats the ammonia component in high-concentration organic wastewater to ensure the recovery of pure ammonia water. When the device works, the high-concentration organic wastewater is uniformly stored in the high-concentration wastewater tank 1. The lift pump 12 is turned on to lift the wastewater in the high-concentration wastewater tank 1 into the stripping tower. During the lifting process, chemicals are added through the chemical dosing tank 11. After entering the stripping tower 4, the wastewater enters the tower from the upper part of the stripping tower 4 and exits from the bottom. The desorbent enters the tower from the bottom of the tower, contacts the wastewater countercurrently in the tower, and exits the tower together with the stripped components at the top of the tower and enters the condenser through a pipeline. During the stripping process, the solute molecules need to be phase-changed into gas. The Roots blower 2 is turned on to discharge the gas through the steam pipeline 3, and the generated water is discharged through the outlet pipeline 5 to the next treatment process. The wastewater after stripping enters the condensation tower 6. The lift pump 2 17 is turned on, and the cooling water in the cold water tank 10 enters the condensation tower 6 through the cooling water pipeline 15. As a heat exchange device, the condensation tower 6 is used to cool the high-temperature wastewater, which not only prevents the scaling of the pipe wall, improves the heat exchange efficiency, but also effectively prevents the waste of resources. The application of the condensation tower 6 in treating high-concentration organic wastewater includes the condensation recovery of organic matter in the waste gas, that is, used to condense ammonia. The condensed ammonia enters the ammonia scrubbing tower 8 and absorbs ammonia through the gas-liquid mass transfer method. Its working principle is that the absorbent is sprayed into the ammonia scrubbing section through a nozzle to form tiny droplets and contact the wastewater, thereby absorbing the ammonia in the wastewater. This technology is suitable for treating high-concentration ammonia-nitrogen wastewater, especially when the ammonia-nitrogen content is relatively high. The ammonia scrubbing tower has become an effective treatment means. The structure design of the ammonia scrubbing tower is simple, easy to manufacture and clean, and has a large production capacity. The pure ammonia water is discharged through the fresh water outlet pipe 14, and other solutions are discharged through the absorbent solution pipeline 7.

[0014] The water used by the ammonia scrubbing tower 8 is provided by the cold water tank 10. The water after being used by the condenser 6 and the ammonia scrubbing tower 8 enters the cooling tower 16 through a pipeline for cooling, and then returns to the cold water tank 10 for continued use.

[0015] In summary, this high-concentration organic waste liquid treatment and reuse device is safe and reliable. Through the stripping tower, condensation tower and ammonia scrubbing tower, it effectively removes the strong alkalinity of high-concentration organic wastewater, removes the ammonia component, and environmentally recovers ammonia water.

Claims

1. A high-concentration organic waste liquid treatment and recycling device, characterized in that: The invention comprises a high-concentration wastewater pool (1), a cold water pool (10), a stripping tower (4), a condensing tower (6) and an ammonia washing tower (8). The high-concentration wastewater pool (1) is connected to the stripping tower (4) through a pipeline; a steam pipeline (3) is provided at the bottom of the stripping tower (4), a Roots blower (2) is installed on the steam pipeline (3), a water outlet pipeline (5) is also provided at the bottom of the stripping tower (4), the top of the stripping tower (4) is connected to the condensing tower (6) through a pipeline, the condensing tower (6) is connected to the cold water pool (10) through a cooling water pipeline (15), and the condensing tower (8) is connected to the cold water pool (10). 6) The upper part is connected to the cooling tower (16) through a pipeline, the cooling tower (16) is connected to the cold water tank (10) through a pipeline, the lower part of the condensing tower (6) is connected to the ammonia washing tower (8) through a pipeline, the middle part of the ammonia washing tower (8) is connected to the cooling water pipeline (15) through a pipeline, the bottom of the ammonia washing tower (8) is connected to the upper part of the ammonia washing tower (8) through a circulation pipeline, a circulation pump (9) is installed on the circulation pipeline, the ammonia washing tower (8) is also connected to the cooling tower (16) through a pipeline, and a fresh water outlet pipe (14) is provided at the top of the ammonia washing tower (8).

2. A high-concentration organic waste liquid treatment and recycling device according to claim 1, characterized in that: A lifting pump (12) and a flow meter (13) are provided on the pipeline connecting the high-concentration wastewater pool (1) and the gas stripping tower (4).

3. The high-concentration organic waste liquid treatment and recycling device according to claim 1 is characterized in that: The water outlet pipe (5) is then processed.

4. The high-concentration organic waste liquid treatment and recycling device according to claim 1 is characterized in that: A second lifting pump (17) is installed on the cooling water pipeline (15).

5. The high-concentration organic waste liquid treatment and recycling device according to claim 1 is characterized in that: An absorption solution pipeline (7) is provided on the pipeline connecting the condensation tower (6) and the ammonia washing tower (8).

6. The high-concentration organic waste liquid treatment and recycling device according to claim 1 is characterized in that: A drug adding box (11) is also provided on the pipeline connecting the high-concentration wastewater pool (1) and the gas stripping tower (4).

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