CN205024023U - Cyanide wastewater advanced oxidation treatment reactor - Google Patents

Abstract

The utility model discloses a reactor for advanced oxidation treatment of cyanide-containing wastewater, which is composed of a reactor shell, an ozone aeration tube, an ultraviolet lamp tube, an ultrasonic generating system and an ozone generator, wherein the reactor shell is provided with a liquid inlet The end of the ozone aeration tube is connected to the ozone generator, the front end extends into the lower end of the reactor shell, and is connected to the ozone aeration branch pipe and the microporous aerator. The ultraviolet lamp tube is a long cylindrical tube. There is a quartz glass casing outside the ultraviolet lamp tube, which is fixed on the lamp holder. The ultrasonic generating system is composed of an ultrasonic horn probe, an ultrasonic transducer and an ultrasonic generator. The utility model combines ozone oxidation, ultraviolet photocatalytic oxidation and ultrasonic treatment together to realize multiple high-level oxidation reactions synergistically, and can realize effective removal of cyanide, complexes and other refractory organic substances, and has the advantages of small footprint, integrated It has the advantages of high degree of chemicalization and good treatment effect.

Description

A reactor for advanced oxidation treatment of cyanide-containing wastewater

technical field

The utility model relates to the technical field of industrial wastewater treatment, in particular to a reactor for oxidation treatment of cyanide-containing wastewater.

Background technique

At present, most domestic gold mines still use the cyanide leaching process, which causes a large amount of cyanide tailings slurry to be produced during the production process, and a large amount of cyanide-containing leachate and leaching will be produced during the accumulation of the cyanide tailings slurry in the tailings pond. Solution, this part of the cyanide-containing wastewater has a low cyanide concentration, and the recycling cost is high. Once the concentrator is saturated with water, if it is not treated, it will always be a hidden danger to the environmental protection of gold mining enterprises. At present, the treatment methods of cyanide-containing wastewater in gold mines include alkali chlorine method, inco method, hydrogen peroxide oxidation method, ozone method, biological method, etc. Some of these methods are incomplete, some have low treatment efficiency, and some will cause secondary pollution, etc. The reason is that they have certain defects in the treatment of cyanide-containing wastewater, which affects their application and promotion. The advanced oxidation method can effectively remove the free cyanide and complex in cyanide-containing wastewater by generating highly active free radicals in the reaction. The rapid degradation and removal of pollutants such as cyanide and thiocyanate has the advantages of high reaction efficiency, fast reaction speed, thorough pollutant degradation, and wide application range. It has broad prospects in the field of cyanide-containing wastewater treatment. However, the current advanced oxidation treatment equipment generally has problems such as low integration, large footprint, and low ozone utilization rate, which limits the promotion and application of advanced oxidation technology.

Contents of the invention

The purpose of this utility model is to solve the above problems and provide an advanced oxidation reactor for oxidation treatment of cyanide-containing wastewater.

The utility model is composed of a reactor shell, an ozone aeration tube, an ultraviolet lamp tube, an ultrasonic generating system and an ozone generator, wherein the reactor shell is cylindrical, and the upper and lower ends are closed. There is a liquid outlet pipe on the side of the reactor shell, and the inner wall of the reactor shell is coated with nano-titanium dioxide photocatalyst coating; the end of the ozone aeration tube is connected to the ozone generator, and the front end extends into the lower end of the reactor shell to aerate with ozone The branch pipe is connected to the microporous aerator; the ultraviolet lamp tube is a cylindrical long tube, which is evenly erected inside the reactor shell, and the ultraviolet lamp tube is fixed on the lamp holder on the upper part of the reactor shell, and the outer layer of the ultraviolet lamp tube is equipped with quartz Glass casing; the ultrasonic generating system consists of an ultrasonic horn probe, an ultrasonic transducer and an ultrasonic generator. The ultrasonic horn probe is evenly and vertically arranged in the upper area of the reactor shell. The transducer is connected, and the top of the ultrasonic transducer is connected with the ultrasonic generator.

Both sides of the front end of the ozone aeration pipe are vertically provided with ozone aeration branch pipes at equal intervals, and microporous aerators are arranged at equal intervals on each ozone aeration branch pipe.

The ultraviolet lamps are arranged in a circular array inside the reactor shell, the total length of each vertical ultraviolet lamp is 1/2-1 of the height of the reactor shell, and the wavelength of the ultraviolet lamps is between 180-750nm.

The diameter of the ultrasonic horn probes is adjustable, and the number of ultrasonic horn probes is greater than or equal to one, which are evenly distributed below 30 mm of the liquid surface of the waste water.

The material of the ozone microporous aerator is 316L stainless steel, titanium alloy or ceramics, and the reactor shell, ozone aeration pipe, ozone aeration branch pipe and ultrasonic horn probe are made of stainless steel.

The beneficial effects of the utility model:

The utility model combines ozone oxidation, ultraviolet photocatalytic oxidation and ultrasonic treatment together to realize multiple high-level oxidation reactions synergistically, and can realize effective removal of cyanide, complexes and other refractory organic substances, and has the advantages of small footprint, integrated It has the advantages of high degree of chemicalization and good treatment effect, and has a good application prospect.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is the top view of the ozone aeration pipe, the ozone aeration branch pipe and the microporous aerator of the utility model.

Fig. 3 is a top view of the ultraviolet lamp tube of the present invention.

Among them, 1—reactor shell; 11—liquid inlet pipe; 12—liquid outlet pipe; 13—nano titanium dioxide photocatalyst coating; 2—ozone aeration pipe; 21—ozone aeration branch pipe; 22—microporous aerator; 3—ultraviolet lamp tube; 31—quartz glass sleeve; 32—lamp holder; 4—ultrasonic generating system; 41—ultrasonic horn probe; 42—ultrasonic transducer; 43—ultrasonic generator; 5—ozone generator .

detailed description

See also shown in Fig. 1, present embodiment is made up of reactor housing 1, ozone aeration tube 2, ultraviolet lamp tube 3, ultrasonic generating system 4 and ozone generator 5, wherein reactor housing 1 is cylindrical, up and down Both ends are closed, the lower part of the reactor shell 1 is provided with a liquid inlet pipe 11, the upper part of the reactor shell 1 is provided with a liquid outlet pipe 12, and the inner wall of the reactor shell 1 is coated with a nano-titanium dioxide photocatalyst coating 13; the end of the ozone aeration pipe 2 It is connected with the ozone generator 5, and the front end extends into the lower end of the reactor shell 1, and is connected with the ozone aeration branch pipe 21 and the microporous aerator 22; the ultraviolet lamp tube 3 is a cylindrical long tube, which is evenly erected in the reactor Inside the shell 1, the ultraviolet lamp tube 3 is fixed on the lamp holder 32 on the upper part of the reactor shell 1, and the outer layer of the ultraviolet lamp tube 3 is provided with a quartz glass sleeve 31; the ultrasonic generating system 4 is composed of an ultrasonic horn probe 41, an ultrasonic transducer The ultrasonic horn probe 41 is evenly and vertically arranged in the upper area inside the reactor shell 1, the upper part of the ultrasonic horn probe 41 is connected with the ultrasonic transducer 42, and the upper part of the ultrasonic transducer 42 is It is connected with the ultrasonic generator 43.

As shown in FIG. 2 , ozone aeration branch pipes 21 are vertically arranged at equal intervals on both sides of the front end of the ozone aeration pipe 2 , and microporous aerators 22 are arranged at equal intervals on each ozone aeration branch pipe 21 .

As shown in Figure 3, the ultraviolet lamp tubes 3 are arranged in a circular array inside the reactor shell 1, and the total length of each vertical direction ultraviolet lamp tube 3 is 1/2～1 of the height of the reactor shell 1, and the wavelength of the ultraviolet lamp tube 3 Between 180 and 750nm.

The diameter of the ultrasonic horn probe 41 is adjustable, and the number of the ultrasonic horn probe 41 is greater than or equal to one, and is evenly distributed at a position 30 mm below the liquid surface of the waste water.

The microporous aerator 22 is made of 316L stainless steel, titanium alloy or ceramics, and the reactor shell 1, ozone aeration pipe 2, ozone aeration branch pipe 21 and ultrasonic horn probe 41 are made of stainless steel.

When the utility model is processing cyanide-containing wastewater, the wastewater enters the reactor from the liquid inlet pipe 11, the ozone generator 5 is opened, ozone is passed into the microporous aerator 22, and the ultraviolet lamp 3 and the ultrasonic generator are opened. 43. Perform advanced oxidation treatment on cyanide-containing wastewater through ozone oxidation, ultraviolet lamp catalysis and ultrasonic waves, and the treated wastewater flows out from the outlet pipe 12.

Claims (5)

1. a cyanide wastewater advanced oxidation treatment reactor, it is characterized in that: be made up of shell of reactor (1), ozonation aerated pipe (2), ultraviolet lamp tube (3), ultrasonic wave generation systems (4) and ozonizer (5), wherein shell of reactor (1) is cylindric, upper and lower closed at both ends, shell of reactor (1) bottom of leaning to one side is provided with liquid-inlet pipe (11), shell of reactor (1) top of leaning to one side is provided with drain pipe (12), and shell of reactor (1) inwall scribbles nano-titania photocatalyst coating (13); Ozonation aerated pipe (2) end is connected with ozonizer (5), and the lower end that front end extend into shell of reactor (1) is inner, is connected with micro-hole aerator (22) with ozonation aerated arm (21); Ultraviolet lamp tube (3) is round shape long tube, evenly be erected at the inside of shell of reactor (1), ultraviolet lamp tube (3) is fixed on the lamp socket (32) on shell of reactor (1) top, and ultraviolet lamp tube (3) skin is provided with quartz glass sleeve (31); Ultrasonic wave generation systems (4) is made up of ultrasonic variable amplitude bar probe (41), ultrasonic transducer (42) and ultrasonic generator (43), ultrasonic variable amplitude bar probe (41) uniform vertical is arranged on the inner upper area of shell of reactor (1), ultrasonic variable amplitude bar probe (41) top is connected with ultrasonic transducer (42), and ultrasonic transducer (42) top is connected with ultrasonic generator (43).

2. a kind of cyanide wastewater advanced oxidation treatment reactor according to claim 1, it is characterized in that: the both sides, front end of described ozonation aerated pipe (2) are equidistantly vertically provided with ozonation aerated arm (21), each ozonation aerated arm (21) is equidistantly provided with micro-hole aerator (22).

3. a kind of cyanide wastewater advanced oxidation treatment reactor according to claim 1, it is characterized in that: described ultraviolet lamp tube (3) circular array is in the inside of shell of reactor (1), the overall length of each vertical direction ultraviolet lamp tube (3) is 1/2 ~ 1 of shell of reactor (1) height, and the wavelength of ultraviolet lamp tube (3) is between 180 ~ 750nm.

4. a kind of cyanide wastewater advanced oxidation treatment reactor according to claim 1, it is characterized in that: the diameter of described ultrasonic variable amplitude bar probe (41) is adjustable, the quantity of ultrasonic variable amplitude bar probe (41) is more than or equal to one, is evenly distributed on waste water below liquid level 30mm and locates.

5. a kind of cyanide wastewater advanced oxidation treatment reactor according to claim 1, it is characterized in that: the material of described micro-hole aerator (22) is 316L stainless steel, titanium alloy or pottery, shell of reactor (1), ozonation aerated pipe (2), ozonation aerated arm (21) and ultrasonic variable amplitude bar probe (41) are stainless steel.