CN110803811A - A device for the synergistic removal of H2S and S= by turbulent air flotation and electrosorption - Google Patents

Abstract

The invention discloses a device for removing H ₂ S and S ⁼ by turbulent air flotation and electric adsorption, comprising a treatment tank, an air storage tank, an air compressor and a lift pump; the inlet of the lift pump is connected to a sewage source through a pump liquid inlet pipe , the outlet of the lift pump is connected to the treatment tank through the tank liquid inlet pipe; the liquid inlet pipe is connected to the air outlet pipe of the air storage tank through the gas filling pipe, and the air inlet pipe port of the air storage tank is connected to the air outlet pipe of the air compressor through the air source pipe. Connection; the exhaust of the treatment tank is connected to the sewage collection tank through the exhaust pipe, and the effluent of the treatment tank is connected to the inlet of the water storage tank through the water outlet pipe or to the inlet of the next-level treatment device. In the operation process of the invention, only air is added without adding medicine, which is not only environmentally friendly, safe and pollution-free, but also small in volume, low in gas consumption, low in energy consumption, and low in operating cost, and it is more effective in removing H ₂ S and S ⁼ , and can be widely used Treatment to remove _H2S and S ⁼ in water.

Description

A device for the synergistic removal of H2S and S= by turbulent air flotation and electrosorption

technical field

The invention relates to the technical field of oily sewage treatment, in particular to a device for removing H _{2 S and S = by turbulent air flotation and electro-adsorption synergistically, which is used for the treatment of removing H 2} ^{S and S =} _in ^the treatment of sewage containing S ⁼ .

Background technique

At present, the output water of oil fields contains a lot of H ₂ S. Due to the great harm of H ₂ S to the human body in the process of sewage treatment, the international control of its H ₂ S index is becoming more and more strict. The chemical method is used to remove S ⁼ , in order to control the release of H ₂ S. Due to the large amount of chemical added and the large amount of sludge formed, the subsequent sludge treatment cost is high, and the final treatment effect is poor.

In order to solve this problem, the treatment method is simple and easy to operate, safe and reliable in operation, thorough and clean, and reduces operating costs. The developed turbulent air flotation and electro-adsorption synergistically remove H ₂ S and S ⁼ device, through the test, we have seen good removal of H ₂ S and S ⁼ effect (S ⁼ ≤ 0.2mg/L), solving the problem of removing H ₂ without chemical treatment S and S ⁼ technical difficulties.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a turbulent air flotation and electro-adsorption synergistic removal of H ₂ S and S ⁼ device to solve the problems raised in the above background technology.

In order to achieve the above object, the present invention adopts the following technical solutions: a turbulent air flotation and electro-adsorption synergistically remove H ₂ S and S ⁼ device, including a treatment tank, an air storage tank, an air compressor, and a lift pump; the inlet of the lift pump passes through the pump. The liquid inlet pipe is connected with the sewage source, and the outlet of the lift pump is connected with the treatment tank through the tank inlet pipe; The air outlet of the air compressor is connected; the exhaust of the treatment tank is connected to the sewage collection tank through the exhaust pipe, and the effluent of the treatment tank is connected to the inlet of the water storage tank through the water outlet pipe or to the inlet of the next-level treatment device.

As a further solution of the present invention, the treatment tank is a vertical circular tank, the center of the bottom of the treatment tank is provided with a water outlet pipe, the water outlet pipe port is connected with the water outlet pipe, the upper part of the treatment tank is provided with an exhaust pipe port, and the exhaust pipe port is connected to the discharge pipe. The gas pipe is connected, the center of the top of the treatment tank is provided with a liquid inlet pipe, the liquid inlet pipe is connected with the liquid inlet pipe, the liquid inlet pipe is provided with a gas filling pipe port, and the gas filling pipe port is connected with the gas filling pipe.

As a further solution of the present invention, the center of the tank top in the treatment tank is provided with a liquid inlet conduit, the lower end of the liquid inlet conduit is connected with a turbulence generator, and the periphery of the bottom plate of the turbulence generator is annularly provided with a guide orifice plate, which is connected to the The inner wall of the tank is connected, the lower part of the bottom plate of the turbulence generator is connected with a fixed and diversion dual-purpose cylinder section, a bracket is annularly arranged around the lower part of the dual-purpose cylinder section, and the bracket is connected with the inner wall of the tank, and an electric adsorber is installed on the bracket .

As a further solution of the present invention, a power supply box is installed on one side of the treatment tank, and the power supply box is connected with the electro-adsorber to provide power.

Compared with the prior art, the beneficial effects of the present invention are: the turbulent air flotation of the present invention reduces the H ₂ S dissolved in the water to S ⁶⁺ with the O ₂ of the air, so as to eliminate the pollution and air pollution caused by the release of the H ₂ S. Injury to human body; select electro-adsorption and utilize anode to adsorb and reduce its S ⁼ to S and then coalesce on the anode plate, and remove S through electrode plate reversal; during the operation of the present invention, only air is added without adding medicine, which is not only environmentally friendly , safe and pollution-free, and small size, less gas consumption, low energy consumption, low operating costs, it is more effective to remove H ₂ S and S ⁼ , and can be widely used in the treatment of water to remove H ₂ S and S ⁼ .

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the internal structure diagram of the treatment tank of the present invention;

In the picture 1. Treatment tank, 2. Water outlet pipe, 3. Exhaust pipe, 4. Liquid inlet pipe, 5. Gas filling pipe, 6. Air storage tank, 7. Air source pipe, 8. Air compressor, 9. Pump Liquid inlet pipe, 10. Lifting pump, 11. Air filling pipe, 12. Water outlet port, 13. Exhaust pipe port, 14. Liquid inlet port, 15. Liquid inlet conduit, 16. Turbulence generator, 17. Guide Ring plate, 18. Dual-purpose barrel section, 19. Bracket, 20. Electro-adsorber, 21. Power box.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

A turbulent air flotation and electro-adsorption synergistic removal of H ₂ S and S ⁼ device, including a treatment tank 1, an air storage tank 6, an air compressor 8, and a lift pump 10; the inlet of the lift pump 10 passes through the pump inlet pipe 9 and sewage The outlet of the lift pump 10 is connected to the treatment tank 1 through the tank liquid inlet pipe 4; the liquid inlet pipe 4 is connected to the gas outlet pipe of the gas storage tank 6 through the gas filling pipe 11, and the air inlet pipe of the gas storage tank 6 is connected through the air source. The pipe 7 is connected with the air outlet of the air compressor 8; the exhaust of the treatment tank 1 is connected with the sewage collection tank through the exhaust pipe 3, and the water outlet of the treatment tank 1 is connected with the inlet of the water storage tank through the water outlet pipe 2 or with the next stage treatment Inlet connection of the device.

The treatment tank 1 is a vertical circular tank. The center of the bottom of the treatment tank 1 is provided with a water outlet port 12, and the water outlet port 12 is connected with the water outlet pipe 2. The upper part of the treatment tank 1 is provided with an exhaust port 13. The exhaust port 13 is connected to the outlet pipe 2. The exhaust pipe 3 is connected, the center of the top of the treatment tank 1 is provided with a liquid inlet port 14, the liquid inlet port 14 is connected with the liquid inlet pipe 4, the liquid inlet pipe 4 is provided with a gas filling pipe port 5, and the gas filling pipe port 5 is connected with the gas filling pipe 11 Connections.

The center of the tank top in the treatment tank 1 is provided with a liquid inlet conduit 15, the lower end of the liquid inlet conduit 15 is connected with a turbulence generator 16, and the periphery of the bottom plate of the turbulence generator 16 is annularly provided with a guide orifice 17. The inner wall of the tank is connected, and the lower part of the bottom plate of the turbulence generator 16 is connected with a fixed diversion dual-purpose cylinder section 18. The lower part of the dual-purpose cylinder section 18 is annularly provided with a bracket 19, and the bracket 19 is connected with the inner wall of the tank. The bracket 19 is equipped with an electro-adsorber 20.

A power supply box 21 is installed on one side of the processing tank. The power supply box 21 is connected to the electro-adsorber 20 to provide power. The electro-adsorber 20 is composed of cylindrical cathodes and anodes. The power supply can be automatically reversed during operation.

Operation process and reaction principle of the present invention:

Containing H ₂ S and S ⁼ sewage is lifted and pressurized by the lift pump and then pressure-dissolved on the pump outlet pipe.

Enter the air, the dissolved air containing H ₂ S and S ⁼ water, enter the turbulator in the treatment tank to carry out turbulent air flotation, during the air flotation process, the dissolved O ₂ reduces the H ₂ S in the water to S ^{6 +} . The reaction process is as follows:

H ₂ S → HS ^- + H ⁺ (in water);

2HS ^- + 2O ₂ → S ₂ O ₃ ⁼ + H ₂ O;

2S ⁼ + 2O ₂ → S ₂ O ₃ ⁼ + 2 OH ^- ;

S₂O₃ ⁼ + 2O₂+ 2 OH^- → 2SO₄ ⁼ + H₂O;

The remaining S ⁼ ions in the water flow down into the electro-adsorber, where the

The anode adsorbs its S ⁼ and reduces it to S to coalesce on the anode plate, and the adsorption process is as follows:

S ⁼ - 2e → S↓(anode);

Then it falls off and flows away with the water after commutating the power supply. The dissolved H ₂ S and S in the water ⁼

In the operation process of the present invention, only air is added without adding medicine, which is not only environmentally friendly, safe and pollution-free, but also small in volume, low in gas consumption, low in energy consumption, and low in operating costs, and has a good effect of removing H ₂ S and S ⁼ . It can be widely used in the treatment of removing H ₂ S and S ⁼ from water.

The above are preferred embodiments of the present invention. For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, Substitutions and modifications still fall within the scope of the present invention.

Claims (4)

1. A turbulent air flotation and electro-adsorption synergistic removal of H ₂ S and S ⁼ device, characterized in that, comprising a treatment tank (1), an air storage tank (6), an air compressor (8), a lift pump (10) ; The inlet of the lift pump (10) is connected to the sewage source through the pump inlet pipe (9), and the outlet of the lift pump (10) is connected to the treatment tank (1) through the tank inlet pipe (4); the inlet pipe (4) The air filling pipe (11) is connected with the air outlet pipe port of the air storage tank (6), and the air inlet pipe port of the air storage tank (6) is connected with the air outlet pipe port of the air compressor (8) through the air source pipe (7); The exhaust of the tank (1) is connected to the sewage collection tank through the exhaust pipe (3), and the effluent of the treatment tank (1) is connected to the inlet of the water storage tank through the water outlet pipe (2) or to the inlet of the next-level treatment device. 2. a kind of turbulent air flotation and electro-adsorption synergistic removal of H ₂ S and S ⁼ device as claimed in claim 1, it is characterized in that, treatment tank (1) is vertical circular tank, treatment tank (1) bottom center A water outlet pipe port (12) is provided, the water outlet pipe port (12) is connected with the water outlet pipe (2), the upper part of the treatment tank (1) is provided with an exhaust pipe port (13), and the exhaust pipe port (13) is connected with the exhaust pipe (3) Connection, the top center of the treatment tank (1) is provided with a liquid inlet pipe port (14), the liquid inlet pipe port (14) is connected with the liquid inlet pipe (4), and the liquid inlet pipe (4) is provided with a gas filling pipe port (5), the gas filling pipe port (5) is connected with the gas filling pipe (11). 3. a kind of turbulent air flotation and electro-adsorption synergistic removal of H ₂ S and S ⁼ device as claimed in claim 1, is characterized in that, the center of the tank top in the treatment tank (1) is provided with a liquid inlet conduit (15), The lower end of the liquid inlet conduit (15) is connected with a turbulence generator (16). The periphery of the bottom plate of the turbulence generator (16) is annularly provided with a guide orifice plate (17), and the guide orifice plate (17) is connected with the inner wall of the tank. The lower part of the bottom plate of the turbulence generator (16) is connected with a fixed diversion dual-purpose cylinder section (18), and a bracket (19) is annularly arranged around the lower part of the dual-purpose cylinder section (18), and the bracket (19) is connected to the tank cylinder. The inner wall is connected, and an electro-adsorber (20) is installed on the bracket (19). 4. A kind of turbulent air flotation and electro-adsorption synergistic removal of H ₂ S and S ⁼ device as claimed in claim 1, it is characterized in that, a power supply box (21) is installed on one side of the treatment tank, and the power supply box (21) is installed with the power supply box (21). The electro-adsorber (20) is connected to provide power, and the electro-adsorber (20) is composed of cylindrical cathodes and anodes, and the power can be automatically reversed during operation.

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