Anti-blocking high-nitrogen rectification wastewater treatment equipment

Abstract

The utility model relates to the technical field of high-nitrogen rectification wastewater, in particular to anti-blocking high-nitrogen rectification wastewater treatment equipment which is sequentially connected with a sedimentation tank, a primary filter tank, an adjusting tank, a stirring tank, a secondary filter tank, a nitrification tank, a denitrification tank and an adsorption tank through pipelines according to the treatment direction, a first filter screen is mounted in the primary filter tank, a stirring shaft and blades are mounted in the stirring tank, a second filter screen is mounted in the secondary filter tank, and the aperture of the first filter screen is larger than that of the second filter screen. Magnesium compounds and phosphides are added into the high-ammonia-nitrogen wastewater to react with ammonia nitrogen in the wastewater to form magnesium ammonium phosphate, so that the ammonia nitrogen in the wastewater is removed, the device is simple in structure, easy to operate, free of climate influence and high in ammonia nitrogen removal rate, and recycling of the ammonia nitrogen in the wastewater is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of high-nitrogen distillation wastewater, in particular to anti-clogging high-nitrogen distillation wastewater treatment equipment. Background Art

[0002] Ammonia nitrogen is a pollutant that has a serious impact on the water environment. It mainly causes eutrophication of water bodies, promotes algae reproduction, consumes a large amount of dissolved oxygen in water, causes death of aquatic organisms, and foul odor in water bodies. The treatment and disposal of high-concentration ammonia nitrogen-containing wastewater has always been a difficult problem in the wastewater treatment industry. It is widely used in the production fields of pharmaceuticals, petrochemicals, leather making, and synthetic ammonia. If high-ammonia nitrogen wastewater is directly discharged into the water without treatment, it will cause serious harm to the environment. Therefore, the treatment of high-concentration ammonia nitrogen wastewater has become an urgent problem to be solved in the wastewater treatment industry. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an anti-clogging high-nitrogen distillation wastewater treatment device to solve the above-mentioned problem.

[0004] The utility model solves the above technical problems through a technical solution: a blockage-resistant high-nitrogen distillation wastewater treatment device, which is connected with a sedimentation tank, a primary filter tank, a regulating tank, a stirring tank, a secondary filter tank, a nitrification tank, a denitrification tank and an adsorption tank in sequence through pipelines according to the treatment direction, a first filter screen is installed in the primary filter tank, a stirring shaft and blades are installed in the stirring tank, and a second filter screen is installed in the secondary filter tank.

[0005] As a preferred technical solution of the present utility model, the aperture of the first filter screen is larger than the aperture of the second filter screen.

[0006] As a preferred technical solution of the present utility model, the pH value in the regulating tank is 9-11.

[0007] As a preferred technical solution of the utility model, a heating plate is installed in the regulating tank, and the temperature is 28-30°C.

[0008] As a preferred technical solution of the utility model, the stirring tank is respectively connected with a phosphorus source feeding pipe and a magnesium source feeding pipe.

[0009] As a preferred technical solution of the utility model, a first air pipe and a second air pipe are respectively installed in the nitrification tank and the denitrification tank, and the gas outlet rate of the first air pipe and the second air pipe is (2-4):1.

[0010] As a preferred technical solution of the utility model, an ultrafiltration mechanism is connected to the right side of the adsorption tank, the pore size of the ultrafiltration membrane in the ultrafiltration mechanism is 10-15 nm, and the ultrafiltration pressure of the ultrafiltration membrane is 0.2-0.4 Mpa; the adsorption tank is filled with activated carbon or zeolite.

[0011] Since the utility model adopts such a structure, by adding magnesium compounds and phosphides into high ammonia nitrogen wastewater, they react with ammonia nitrogen in the wastewater to form magnesium ammonium phosphate, thereby removing ammonia nitrogen in the wastewater. The utility model has a simple structure, is easy to operate, is not affected by climate, has a high ammonia nitrogen removal rate, and realizes the resource utilization of ammonia nitrogen in the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model discloses a flow chart of an anti-clogging high-nitrogen distillation wastewater treatment device.

[0013] In the figure: 1 is a sedimentation tank, 2 is a primary filtration tank, 3 is a regulating tank, 4 is a stirring tank, 5 is a secondary filtration tank, 6 is a nitrification tank, 7 is a denitrification tank, 8 is an adsorption tank, and 9 is an ultrafiltration mechanism. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1 As shown, the utility model is a kind of anti-clogging high-nitrogen distillation wastewater treatment equipment, which is characterized by: according to the treatment direction, a sedimentation tank 1, a primary filter tank 2, a regulating tank 3, a stirring tank 4, a secondary filter tank 5, a nitrification tank 6, a denitrification tank 7 and an adsorption tank 8 are connected in sequence through pipelines, a first filter screen is installed in the primary filter tank 2, a stirring shaft and blades are installed in the stirring tank 4, and a second filter screen is installed in the secondary filter tank 5. Through the synergistic effect of the sedimentation tank 1, the primary filter tank 2, the regulating tank 3, the stirring tank 4, the secondary filter tank 5, the nitrification tank 6, the denitrification tank 7 and the adsorption tank 8, the high-nitrogen distillation wastewater can be treated thoroughly to avoid clogging, and it is convenient and efficient to use and has good practicality.

[0016] In the present invention, the aperture of the first filter screen is larger than the aperture of the second filter screen. By removing large particles of impurities through the primary filter pool 2, the filtering pressure of the secondary filter pool 5 can be reduced.

[0017] The present invention further provides that the pH value in the regulating tank 3 is 9-11. The pH value of the high-nitrogen wastewater is adjusted to 9-11 using lime or NaOH.

[0018] In the present invention, a heating plate is installed in the regulating tank 3, and the temperature is 28-30° C. Wastewater with a temperature of about 29° C. can have a good removal efficiency.

[0019] The utility model further comprises a stirring pool 4 which is connected to a phosphorus source feed pipe and a magnesium source feed pipe respectively. 2﹢ ):n(NH4 ﹢ ):n(P04 3- ) is (1-1.2):1:(1-1.2);

[0020] The reaction principle is as follows:

[0021] Mg 2﹢ +NH4 ﹢ +P04 3- =MgNH4P04. The high nitrogen wastewater is heated to 28-30°C in the regulating tank 3 and then pumped into the stirring tank 4. 2﹢ ):n(NH4 ﹢ ):n(P04 3- ) is (1-1.2): 1: (1-1.2) can be effectively treated. By introducing phosphorus source and magnesium source into wastewater, Mg 2﹢ 、P04 3- Can react with NH4 ﹢ Chemical reaction generates precipitation to remove NH4 in wastewater ﹢ Remove.

[0022] The utility model further comprises a first air pipe and a second air pipe installed in the nitrification tank 6 and the denitrification tank 7, respectively, and the gas outlet rates of the first air pipe and the second air pipe are (2-4): 1. The microorganisms in the nitrification tank 6 and the denitrification tank 7 are aerobic bacteria, and the introduction of air with different gas outlet rates can efficiently biochemically treat wastewater.

[0023] In the present invention, the right side of the adsorption tank 8 is connected to an ultrafiltration mechanism, the pore size of the ultrafiltration membrane in the ultrafiltration mechanism is 10-15 nm, and the ultrafiltration pressure of the ultrafiltration membrane is 0.2-0.4 Mpa; the adsorption tank 8 is filled with activated carbon or zeolite. Activated carbon or zeolite can further absorb impurities in the wastewater, thereby further preventing clogging.

[0024] The description and application of the utility model here are illustrative and are not intended to limit the scope of the utility model to the above-described embodiments. Variations and changes of the embodiments disclosed here are possible, and the actual replacement of the embodiments and the various components equivalent to those of ordinary skill in the art are well known. It should be clear to those skilled in the art that the utility model can be implemented in other forms, structures, arrangements, proportions, and with other elements, materials, and components without departing from the spirit or essential features of the utility model. Other variations and changes can be made to the embodiments disclosed here without departing from the spirit or essential features of the utility model.

Claims

1. An anti-clogging high nitrogen distillation wastewater treatment equipment, characterized by: A sedimentation tank (1), a primary filtration tank (2), a regulating tank (3), a stirring tank (4), a secondary filtration tank (5), a nitrification tank (6), a denitrification tank (7) and an adsorption tank (8) are connected in sequence through pipelines according to the treatment direction. A first filter screen is installed in the primary filtration tank (2), a stirring shaft and blades are installed in the stirring tank (4), and a second filter screen is installed in the secondary filtration tank (5).

2. The anti-clogging high-nitrogen distillation wastewater treatment equipment according to claim 1 is characterized in that: The pore size of the first filter screen is larger than the pore size of the second filter screen.

3. The anti-clogging high-nitrogen distillation wastewater treatment equipment according to claim 1 is characterized in that: The pH value in the regulating tank (3) is 9-11.

4. The anti-clogging high-nitrogen distillation wastewater treatment equipment according to claim 3 is characterized in that: A heating plate is installed in the regulating tank (3), and the temperature is 28-30°C.

5. The anti-clogging high-nitrogen distillation wastewater treatment equipment according to claim 1 is characterized in that: The stirring tank (4) is respectively connected to a phosphorus source feed pipe and a magnesium source feed pipe.

6. The anti-clogging high-nitrogen distillation wastewater treatment equipment according to claim 1 is characterized in that: A first air pipe and a second air pipe are installed in the nitrification tank (6) and the denitrification tank (7), respectively. The gas outlet rates of the first air pipe and the second air pipe are (2-4):

1.

7. The anti-clogging high-nitrogen distillation wastewater treatment equipment according to claim 1 is characterized by: The right side of the adsorption pool (8) is connected to an ultrafiltration mechanism (9), the pore size of the ultrafiltration membrane in the ultrafiltration mechanism (9) is 10-15 nm, and the ultrafiltration pressure of the ultrafiltration membrane is 0.2-0.4 Mpa; the adsorption pool (8) is filled with activated carbon or zeolite.

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