CN202438260U - Compound biology deodorization device - Google Patents

Abstract

A compound biological deodorization device relates to a biological deodorization device. The utility model aims to solve the problem that the existing biological deodorization device has poor treatment effect on mixed malodorous substances. The composite biological deodorization device includes a biological washing system and a biological adsorption system. The upper end of the bottom cylinder is connected to the lower end of the lower cylinder through a flange, the lower end of the bottom cylinder is connected to the outlet pipe, and one end of the air inlet pipe passes through the side wall of the bottom cylinder. It is connected with the air distribution head placed inside the bottom cylinder, the lower sieve plate is arranged above the air distribution head, the lower sieve plate is installed at the bottom of the lower cylinder, the upper sieve plate is installed at the bottom of the upper cylinder, and the bio-ceramic filler is filled in the In the upper cylinder, one end of the water inlet pipe is connected to the spray pipe, the lower end of the upper cylinder is connected to the upper end of the lower cylinder through a flange, and the three-dimensional elastic filler attached to the biofilm is arranged in the lower cylinder, and the three-dimensional elastic filler attached to the biofilm The filler is fixed between the upper sieve plate and the lower sieve plate. The utility model is used in waste gas treatment.

Description

A compound biological deodorization device

technical field

The utility model relates to a biological deodorization device, in particular to a composite biological deodorization device, which belongs to the technical field of waste gas treatment equipment.

Background technique

In recent years, the country has paid more and more attention to environmental issues, and built a large number of urban sewage treatment plants, industrial wastewater treatment stations and landfills. Due to the continuous expansion of cities, these factories are gradually approaching densely populated areas, and the odorous substances released during the production process have a great impact on the health of residents. At present, there are industrial devices in operation for adsorption and absorption technology and bioreactors for purifying malodorous gases, but there are still many problems in the current technology. For example, adsorption and absorption technologies have good deodorization effects and high deodorization precision, but such technologies have complex processes and high operating costs. The biological deodorization method has the characteristics of simple process, low operating cost, and convenient operation, and is often used for the removal of odorous substances in the environment. According to the existing form of microorganisms in the deodorization device, the biological method can be divided into three types: biological washing method, biological filtration method, and biological trickling method. Pollutants tend to adopt the biological washing method, which is suitable for the simultaneous treatment of waste water and waste gas, but the impact load resistance is poor, the aeration intensity should not be too large, and it is difficult to increase the volume load of odorous substances; Henry's coefficient is high (Hc>1 ), the pollutants that are insoluble in water are suitable for biological filtration. The filter tower is filled with active fillers. The malodorous substances need to be pre-wetted before entering the tower for biodegradation. Therefore, the process is long and the operation is complicated; the solubility is between the two The malodorous gas in between can be treated by the biological trickling filtration method. Although this method has a large concentration of odor and high efficiency, it has disadvantages such as high equipment cost, complicated operation process, and continuous inoculation of nutrients. Most of the above-mentioned biological deodorization devices are designed and used for one main odorous substance, but there are many kinds of odorous substances released during the operation of urban sewage treatment plants, industrial wastewater treatment stations and landfills, including sulfur compounds, Hydrophilic and hydrophobic substances such as nitrogen-containing compounds, halogen-containing compounds and various hydrocarbons, and changes in environmental factors and operating parameters also affect the release concentration and types of odorous substances. If the removal efficiency of mixed odors is not fully considered, It will affect the stable operation of the deodorization system, and ultimately affect the deodorization effect.

Utility model content

The purpose of the utility model is to solve the problem that the existing biological deodorization device has poor treatment effect on mixed malodorous substances, and further provide a composite biological deodorization device.

The technical scheme of the utility model is: a composite biological deodorization device includes a biological washing system and a biological adsorption system, and the biological washing system includes a lower cylinder, a bottom cylinder, an air inlet pipe, an air inlet valve, an outlet pipe, an outlet valve, The air distribution head, the lower sieve plate, the liquid level gauge and the three-dimensional elastic packing attached to the biofilm, the upper end of the bottom cylinder and the lower end of the lower cylinder are connected by a flange, the lower end of the bottom cylinder is connected with the outlet pipe, and the lower part of the bottom cylinder is Conical structure, the water outlet valve is installed on the water outlet pipe, one end of the air inlet pipe passes through the side wall of the bottom cylinder and is connected to the air distribution head placed inside the bottom cylinder, the air inlet valve is installed on the air inlet pipe, and the lower sieve plate is arranged on the cloth Above the gas head, and the lower sieve plate is installed at the bottom of the lower cylinder, one end of the liquid level gauge is installed in the lower cylinder, and the installation position of the liquid level gauge is located at the upper part of the lower cylinder, and the other end of the liquid level gauge passes through the lower cylinder The side wall of the body is connected with the water outlet valve through a wire;

The biosorption system includes an upper cylinder, an upper sieve plate, an air outlet pipe, a water inlet pipe, a spray pipe, a detection tube, a detection port valve, a liquid flow meter, a water inlet valve, and biological ceramsite packing; the upper sieve plate is installed on the At the bottom of the cylinder, bio-ceramic filler is filled in the upper cylinder. One end of the water inlet pipe passes through the side wall of the upper cylinder and communicates with the spray pipe placed inside the upper cylinder. The liquid flow meter and water inlet valve are installed in the inlet On the water pipe, the outlet pipe is installed on the top of the upper cylinder, and the outlet pipe is connected with the upper cylinder, the detection pipe is installed on the side wall of the upper cylinder, and the detection pipe is connected with the upper cylinder, and the detection port valve is installed in the detection On the pipe, the installation position of the spray pipe is lower than the installation position of the detection pipe;

The lower end of the upper cylinder and the upper end of the lower cylinder are connected by a flange, the three-dimensional elastic packing with biofilm attached is arranged in the lower cylinder, and the three-dimensional elastic packing with biofilm is fixed between the upper sieve plate and the lower sieve plate.

Compared with the prior art, the utility model has the following effects: the composite biological deodorization device of the utility model combines a biological washing system and a biological adsorption system, the biological washing system mainly removes hydrophilic malodorous substances, and the biological adsorption system mainly Degradation of hydrophobic malodorous substances realizes efficient removal of mixed malodorous substances, and the removal rate of mixed malodorous substances reaches more than 94%. In addition, the utility model also has the advantages of small occupied area, low operating cost, simple process and convenient operation. The composite biological deodorizing device of the utility model can be used independently or in combination with other equipment. Since the device is easy to monitor, it can also be used as a model for laboratory research on the mechanism of biodegradable odorous gases, and is easy to popularize and apply.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the composite biological deodorization device of the present invention (the hollow arrows in the figure are the water flow direction, and the solid arrows are the air flow direction).

Detailed ways

Specific Embodiment 1: This embodiment is described in conjunction with FIG. 1. A composite biological deodorization device in this embodiment includes a biological washing system and a biological adsorption system. The biological washing system includes a lower cylinder 15, a bottom cylinder 16, and an air intake pipe. 2. Air intake valve 17, water outlet pipe 1, water outlet valve 18, air distribution head 12, lower sieve plate 19, liquid level gauge 10 and three-dimensional elastic packing 11 with biofilm attached, the upper end of the bottom cylinder 16 and the lower cylinder 15 The lower end is connected by a flange, the lower end of the bottom cylinder 16 is connected with the outlet pipe 1, the lower part of the bottom cylinder 16 is a tapered structure, the water outlet valve 18 is installed on the outlet pipe 1, and one end of the air inlet pipe 2 passes through the side of the bottom cylinder 16. The wall is connected with the air distribution head 12 placed inside the bottom cylinder 16, the intake valve 17 is installed on the air intake pipe 2, the lower sieve plate 19 is arranged above the air distribution head 12, and the lower sieve plate 19 is installed on the bottom of the lower cylinder 15. At the bottom, one end of the liquid level gauge 10 is installed in the lower cylinder body 15, and the installation position of the liquid level gauge 10 is located at the top of the lower cylinder body 15, and the other end of the liquid level gauge 10 passes through the side wall of the lower cylinder body 15 through the wire and The water outlet valve 18 is connected;

The biosorption system includes an upper cylinder body 14, an upper sieve plate 20, an air outlet pipe 6, a water inlet pipe 21, a spray pipe 22, a detection pipe 5, a detection port valve 23, a liquid flow meter 7, a water inlet valve 24, a bioceramic Granular filler 25; the upper sieve plate 20 is installed at the bottom of the upper cylinder 14, the biological ceramsite filler 25 is filled in the upper cylinder 14, and one end of the water inlet pipe 21 passes through the side wall of the upper cylinder 14 and is placed on the upper cylinder The spray pipe 22 inside 14 is connected, the liquid flow meter 7 and the water inlet valve 24 are installed on the water inlet pipe 21, the air outlet pipe 6 is installed on the top of the upper cylinder 14, and the air outlet pipe 6 is connected with the upper cylinder 14, and the detection pipe 5 is installed on the side wall of the upper cylinder 14, and the detection pipe 5 is connected with the upper cylinder 14, the detection port valve 23 is installed on the detection pipe 5, and the installation position of the spray pipe 22 is lower than that of the detection pipe 5 ;

The lower end of the upper cylinder 14 is connected to the upper end of the lower cylinder 15 through a flange, and the three-dimensional elastic filler 11 attached to the biofilm is arranged in the lower cylinder 15, and the three-dimensional elastic filler 11 attached to the biofilm is fixed on the upper sieve plate 20 and the upper end of the lower cylinder 15. Between the lower sieve plates 19.

Embodiment 2: This embodiment is described with reference to FIG. 1 . The ratio of the filling height of the biological ceramsite filler 25 to the height of the upper cylinder 14 in this embodiment is 1:2 to 3:5. Such setting can reduce the air resistance and make the malodorous gas pass through smoothly. Other compositions and connections are the same as in the first embodiment.

Specific Embodiment Three: This embodiment is described with reference to FIG. 1 . The height ratio of the upper cylinder 14 and the lower cylinder 15 in this embodiment is 5:3. With this setting, the space volume of the cylinder is the best to avoid the loss of filler. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

Embodiment 4: This embodiment is described with reference to FIG. 1 . The sieve hole diameters of the upper sieve plate 20 and the lower sieve plate 19 of this embodiment are 2mm to 4mm, and the distance between two adjacent sieve holes is 6mm to 8mm. With this setting, the air distribution effect is better. Other compositions and connections are the same as those in Embodiment 1, 2 or 3.

Specific embodiment five: This embodiment is described in conjunction with Fig. 1. The composite biological deodorization device of this embodiment also includes a temperature control system. The temperature control system includes a heating wire 9 and a temperature control switch 4, and the heating wire 9 is sequentially arranged from bottom to top. Winding on the outer walls of the lower cylinder 15 and the upper cylinder 14 , the tail end of the heating wire 9 is connected with a temperature control switch 4 . In this way, in the northern region, the winter is cold and the temperature is low, and the processing facilities are mostly built outdoors. When the ambient temperature is lower than 15°C, the temperature control switch 4 is activated to keep the temperature of the lower cylinder 15 and the upper cylinder 14 at 25°C to Between 30°C, the influence of too low temperature on the operation effect of the biological deodorization device is eliminated, and the deodorization efficiency of microorganisms is maintained. Other compositions and connections are the same as those in Embodiment 1, 2, 3 or 4.

Specific Embodiment Six: This embodiment is described in conjunction with FIG. 1. The composite biological deodorization device of this embodiment also includes a backwash system, and the backwash system includes an overflow pipe 8, a compressed air pipe 3, an overflow port valve 26 and Compressed air valve 27, overflow pipe 8 is installed on the outer wall of upper cylinder 14, and overflow pipe 8 is positioned at the top of biological ceramsite filler 25, overflow pipe 8 communicates with the inside of upper cylinder 14, overflow pipe 8 The installation position is lower than the installation position of the water inlet pipe 21, the overflow valve 26 is installed on the overflow pipe 8, and one end of the compressed air pipe 3 passes through the side wall of the upper cylinder 14 and is buried in the biological ceramsite filler 25, The compressed air valve 27 is installed on the compressed air pipe 3 . Such setting solves the problem of stuffing clogging. Other compositions and connections are the same as those in Embodiment 1, 2, 3, 4 or 5.

The working principle of the utility model: the working principle of the utility model is illustrated in conjunction with Fig. 1. The exhaust gas containing the malodorous substance enters the biological washing system from the air inlet pipe 2 at the bottom of the lower cylinder 15 under the action of the air pump, and the malodorous substance passes through against the direction of the water flow. Through the gaps of the three-dimensional elastic filler 11 attached to the biofilm, the hydrophilic malodorous substance in the biological washing system is converted from the gas phase to the liquid phase, and is degraded by the microorganisms on the surface of the three-dimensional elastic filler attached to the biofilm. Removal, reducing the volume load of subsequent processing units. The pretreated waste gas enters the biosorption system through the upper sieve plate 20 at the bottom of the upper cylinder 14 , passes through the bio-ceramic filler 25 , and is finally discharged from the outlet pipe 6 at the top of the upper cylinder 14 . When the malodorous gas passes through the biological ceramsite filler 25, it is adsorbed on the surface of the filler, and the adsorbed odor components are decomposed by the metabolism of microorganisms growing on the filler surface. In order to provide the water and nutrients needed for the growth and reproduction of microorganisms, and to wash away the products of biological metabolism, etc., the water from the sedimentation tank of the sewage treatment plant and the wastewater treatment station is used as the spray liquid, and the spray pipe is continuously sprayed. The liquid passes through the biological adsorption system and the biological scrubbing system in sequence against the airflow direction, and finally is discharged from the water outlet pipe 1 at the bottom of the lower cylinder 15 .

When the ambient temperature is lower than 15°C, start the temperature control switch 4 to keep the temperature of the composite biological deodorization device at 25°C-30°C.

When backwashing, close the liquid level gauge 10, increase the spray volume of the spray pipe 22 so that the bio-ceramic filler 25 in the biosorption system is completely submerged in the water, open the compressed air valve 27, and the compressed air passes through the compressed air pipe 3 After entering the biosorption system, the blocking substances in the filter material are washed away, and the backwashed water is discharged through the overflow pipe 8 on the upper cylinder 14 .

Claims (6)

1. A compound biological deodorization device is characterized in that: a kind of compound biological deodorization device comprises a biological washing system and a biological adsorption system, and the biological washing system comprises a lower cylinder (15), a bottom cylinder (16), an inlet Trachea (2), air inlet valve (17), water outlet pipe (1), water outlet valve (18), air distribution head (12), lower sieve plate (19), liquid level gauge (10) and three-dimensional body attached to biofilm Elastic packing (11), the upper end of the bottom cylinder (16) is connected with the lower end of the lower cylinder (15) through a flange, the lower end of the bottom cylinder (16) is connected with the outlet pipe (1), and the bottom of the bottom cylinder (16) It is a tapered structure, the water outlet valve (18) is installed on the water outlet pipe (1), and one end of the air inlet pipe (2) passes through the side wall of the bottom cylinder (16) and the air distribution head ( 12) connection, the intake valve (17) is installed on the intake pipe (2), the lower sieve plate (19) is arranged above the air distribution head (12), and the lower sieve plate (19) is installed on the lower cylinder (15) One end of the liquid level gauge (10) is installed in the lower cylinder (15), and the installation position of the liquid level gauge (10) is located at the upper part of the lower cylinder (15), and the other end of the liquid level gauge (10) wears The side wall of the lower cylinder (15) is connected with the water outlet valve (18) by a wire; The biosorption system includes an upper cylinder body (14), an upper sieve plate (20), an air outlet pipe (6), a water inlet pipe (21), a spray pipe (22), a detection pipe (5), a detection port valve (23 ), liquid flow meter (7), water inlet valve (24), biological ceramsite filler (25); the upper sieve plate (20) is installed at the bottom of the upper cylinder (14), and the biological ceramsite filler (25) is filled in In the upper cylinder (14), one end of the water inlet pipe (21) passes through the side wall of the upper cylinder (14) to communicate with the spray pipe (22) placed inside the upper cylinder (14), and the liquid flow meter (7 ) and the water inlet valve (24) are installed on the water inlet pipe (21), the air outlet pipe (6) is installed on the top of the upper cylinder (14), and the air outlet pipe (6) is connected with the upper cylinder (14), and the detection pipe (5) Installed on the side wall of the upper cylinder (14), and the detection tube (5) is connected with the upper cylinder (14), the detection port valve (23) is installed on the detection tube (5), the spray pipe The installation position of (22) is lower than the installation position of detection tube (5); The lower end of the upper cylinder (14) is connected to the upper end of the lower cylinder (15) by a flange, and the three-dimensional elastic packing (11) attached to the biofilm is arranged in the lower cylinder (15), and the three-dimensional elastic packing attached to the biofilm (11) is fixed between the upper sieve plate (20) and the lower sieve plate (19). 2. A composite biological deodorizing device according to claim 1, characterized in that the ratio of the filling height of the biological ceramsite filler (25) to the height of the upper cylinder (14) is 1:2 to 3:5. 3. A composite biological deodorization device according to claim 2, characterized in that the height ratio of the upper cylinder (14) to the lower cylinder (15) is 5:3. 4. A compound biological deodorization device according to claim 1, 2 or 3, characterized in that: the sieve apertures of the upper sieve plate (20) and the lower sieve plate (19) are 2 mm to 4 mm, and two adjacent The spacing of each screen hole is 6mm to 8mm. 5. A composite biological deodorization device according to claim 4, characterized in that: the composite biological deodorization device also includes a temperature control system, and the temperature control system includes a heating wire (9) and a temperature control switch (4) , the heating wire (9) is wound on the outer walls of the lower cylinder (15) and the upper cylinder (14) sequentially from bottom to top, and the tail end of the heating wire (9) is connected with a temperature control switch (4). 6. A kind of composite biological deodorization device according to claim 4, characterized in that: the composite biological deodorization device also includes a backwash system, and the backwash system includes an overflow pipe (8), a compressed air pipe (3 ), the overflow valve (26) and the compressed air valve (27), the overflow pipe (8) is installed on the outer wall of the upper cylinder (14), and the overflow pipe (8) is located in the biological ceramsite filler (25) The overflow pipe (8) communicates with the inside of the upper cylinder (14), the installation position of the overflow pipe (8) is lower than the installation position of the water inlet pipe (21), and the overflow valve (26) is installed on the overflow On the flow pipe (8), one end of the compressed air pipe (3) passes through the side wall of the upper cylinder (14) and is buried in the biological ceramsite filler (25), and the compressed air valve (27) is installed in the compressed air pipe ( 3) on.

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