CN104803551A - Device for removing synthetic musk in sewage - Google Patents

Abstract

The invention provides a device for removing synthetic musk in sewage, comprising: an aerobic treatment device and a precipitation device, the aerobic treatment device includes: a plurality of microbial pellets filled in the aerobic treatment device, vertically arranged A plurality of partitions in the treatment device, an aeration device at the bottom of the aerobic treatment device, a carrier separator and an outlet weir at the water outlet of the aerobic treatment device. Under the blocking effect of aeration and partitions, the sewage passes through the bottom and top of adjacent partitions in turn, forming up and down reciprocating baffles, prolonging the contact time with multiple microbial pellet units; microbial pellets contain subtilis spores Bacteria and a sphere of solidified embedding agent, use the solidified embedding agent to adsorb the synthetic musk in the sewage, and use Bacillus subtilis to degrade the adsorbed synthetic musk; the sewage that has undergone the degradation treatment is precipitated in the sedimentation device The supernatant is the treated effluent.

Description

A device for removing synthetic musk in sewage

technical field

The invention relates to a device for removing synthetic musk in sewage, belonging to the field of environmental protection.

Background technique

Because the production of natural musk is limited by its production method and cannot keep up with people's increasing demand for musk, so people have found a method to utilize chemical means to synthesize musk, that is, to replace natural musk with synthetic musk. As a cheap substitute for natural musk, synthetic musk is widely used in the daily chemical industry because of its excellent fragrance-fixing ability, typical musk fragrance and low price. Synthetic musks can be divided into three categories according to their chemical structures: Nitro musks, Polycyclic musks and Macrocyclic musks. Nitromusk has been phased out due to its potential carcinogenicity. Macrocyclic musks are not widely used due to their high production costs; polycyclic musks are currently the most widely used synthetic musk substances.

Synthetic musk is added to cosmetics (such as perfumes, soaps, shampoos and face creams, etc.) and detergents (softeners, shower gels, shampoos, etc.) as fragrances. was released into sewage. Due to the extensive use of these compounds, synthetic musk enters the environment along with sewage. Synthetic musk has been detected in surface water, sewage, sludge, air, and aquatic organisms, and artificial musk has even been detected in human adipose tissue, blood, and breast milk. Several studies have found that synthetic musk has bioaccumulated in aquatic animals, including fish and shellfish, and in human breast milk. In addition, polycyclic musks have certain estrogen activity and have potential endocrine disrupting effects.

Synthetic musk substances belong to the category of pharmaceuticals and personal care products (PPCPs) in persistent pollutants (POPs). At present, due to the fact that my country's wastewater discharge standards have not stipulated discharge limits for synthetic musk substances, there is no domestic treatment process specifically for the removal of synthetic musk in sewage, and the general activated sludge process has a low removal rate for synthetic musk. . However, due to the pollution and harmfulness of synthetic musk, there have been researches in the world using advanced oxidation technologies such as ozone oxidation to remove synthetic musk pollutants in the advanced treatment unit of conventional sewage treatment, but the cost of producing ozone is relatively high, and Ozone itself is also an air pollutant, which can easily cause secondary pollution.

The present invention uses the aerobic treatment device filled with microbial pellets to carry out advanced treatment on domestic sewage after conventional biochemical treatment to achieve the purpose of removing synthetic musk in sewage, and has the advantages of low operating cost, one-time investment, and high treatment effect. The process is simple and easy, and there is no secondary pollution.

Contents of the invention

The present invention aims at the defects existing in the existing technology for removing synthetic musk in sewage, and provides a device for removing synthetic musk in sewage. The device of the present invention is used to carry out advanced treatment of sewage, and the content of synthetic musk in the treated effluent is low, and the removal rate is low. high.

For realizing the purpose of the present invention, the present invention provides a kind of device for removing synthetic musk in sewage, it is characterized in that, comprises:

Aerobic treatment device for microbial degradation and adsorption treatment of sewage;

The sedimentation device is used to settle the sewage that has undergone microbial degradation and adsorption treatment, and obtain and discharge the supernatant;

Wherein, the aerobic treatment device includes:

A plurality of microbial pellet units filled in the aerobic treatment device, each microbial pellet unit is composed of a plurality of microbial pellets, each microbial pellet is a sphere containing Bacillus subtilis and solidified embedding agent, Each microbial pellet utilizes the solidified embedding agent to adsorb the synthetic musk in the sewage, and utilizes the Bacillus subtilis to degrade the adsorbed synthetic musk;

A plurality of partitions vertically arranged in the aerobic treatment device are used to isolate the plurality of microbial pellet units, so that each microbial pellet unit is isolated from each other;

The aeration device located at the bottom of the aerobic treatment device is used to make the microbial spheres perform microbial degradation and adsorption treatment on the sewage in a suspended state;

By forming aeration at the bottom of the aerobic treatment device, the sewage in the aerobic treatment device is forced to pass through the bottom and top of the adjacent partitions in sequence under the blocking action of the plurality of partitions, forming an up and down reciprocating baffle , thereby prolonging the contact time between the sewage containing synthetic musk and the plurality of microbial pellet units.

The deflection can make the sewage flow in the horizontal direction and mix more evenly in the vertical direction, which is beneficial for each microbial pellet to fully contact with the sewage. Under the joint action of water flow and aeration, the microbial pellets will Into a suspension state. Generally, during operation, the height of the suspended microbial pellets is 1.1-1.3 times of the initial filling height.

Wherein, the microbial pellets include:

Adsorb the solidified embedding agent of the synthetic musk in the said sewage;

Bacillus subtilis that degrades adsorbed synthetic musk;

Additives that support the globule structure of the fouling microorganisms.

The invention adopts Bacillus subtilis as the degradation strain in the sludge-based microbial pellets. Bacillus subtilis has a good reaction removal effect on micro-pollutants (POPs substances, synthetic musk is one of POPs).

Wherein, the solidified embedding agent includes activated sludge and activated carbon.

In particular, the mass ratio of the activated sludge to the activated carbon is 80-90:10-20.

In particular, the mass ratio of the activated sludge to the activated carbon is preferably 85:15.

In particular, the activated sludge is aerobic activated sludge concentrated in a sludge concentration tank in a sewage plant, with a moisture content of 80-85%. Other types of aerobic activated sludge are also suitable for the present invention.

In particular, the activated carbon is lignite-based activated carbon.

In particular, the lignite-based activated carbon is powdered lignite-based activated carbon, moisture content: 38.5-52.6%; ash content: 1.68-10.32%; volatile content: 37.98-54.65%; fixed carbon: 28.20-33.80%; total sulfur content: 0.38-0.75%.

The particle diameter of the powdered lignite activated carbon: 50-80 mesh; pore diameter: 2-50nm.

Aerobic activated sludge is a floc formed by bacteria, micro-animal-based microorganisms mixed with suspended matter and colloidal matter, which can be used as a good solidification material and embedding material. There are a large number of mycolloid bacteria and filamentous bacteria in the aerobic activated sludge. These flora can first assist Bacillus subtilis degrading bacteria to degrade pollutants in wastewater. At the same time, the secretions of these bacteria are deposited in the microbial pellets, which can strengthen the flocculation and adsorption of pollutants, and improve the sedimentation adsorption efficiency and removal efficiency of synthetic musk substances in wastewater.

Powdered lignite activated carbon can not only play a cross-linking role, but also improve the properties of microbial pellets and improve the strength and other properties of microbial pellets.

Wherein, the additives are selected from cellulose, 101 support and 6201 support.

In particular, the mass ratio of the cellulose, 101 support and 6201 support is 35-45:35-45:10-30.

In particular, the mass ratio of the cellulose, 101 support and 6201 support is preferably 40:40:20.

The microbial pellets form a stable environment inside to protect the Bacillus subtilis growing inside; the synthetic musk in the sewage is adsorbed, absorbed, and enriched through the outer layer of solidified embedding agent, and then absorbed and absorbed by the Bacillus subtilis , The enriched synthetic musk is degraded and removed.

Wherein, the microbial pellet is prepared by the following method:

(1) Inoculate the Bacillus subtilis bacterial classification in the solid-state culture medium, and carry out expanded cultivation;

(2) centrifuging the dominant Bacillus subtilis that has completed the expanded culture to obtain wet thallus;

(3) Adding additives to the wet thalline, stirring evenly to obtain a suspension;

(4) Add the solidified embedding agent into the mixed suspension, stir evenly, and prepare the mixed raw material;

(5) The mixed raw materials are agglomerated into spherical microbial pellets, fermented in the dark, and white hyphae are formed on the surface of the microbial pellets.

In particular, the Bacillus subtilis strains are inoculated in a solid-state medium, and the expanded culture package is carried out

Prepare solid medium: beef extract 5g, peptone 10g, NaCl 5g, agar powder 15g, add water to 1000mL;

Sterilization: Sterilize the solid medium at 121°C for 30 minutes;

Inoculation: Turn on the ultraviolet lamp in the sterilization box and sterilize for 30 minutes; then turn on the fluorescent lamp, burn the inoculation needle red on the alcohol lamp, dip in the water sample of Bacillus subtilis, and inoculate it by streaking on the flat medium and inclined medium, Incubate for 24 h in a constant temperature incubator.

The dominant Bacillus subtilis that has completed the expanded culture is centrifuged to obtain wet bacteria; the concentration of the wet bacteria is 5.0×10 ⁵ -3.0×10 ⁷ CFU/mL.

Add the additive cellulose, 101 support and 6201 support to the wet bacteria, and after stirring evenly, add the solidified embedding agent to it, stir evenly to obtain a viscous mixed raw material, and then agglomerate the mixed raw material into spherical microorganisms The balls are fermented in the dark, and the white hyphae are formed on the surface of the microbial balls.

Wherein, the mass ratio of the wet bacteria to the additive is 80-90:10-20, and the mass ratio of the wet bacteria to the solidified embedding agent is 20-40:60-80.

Wherein, the dark fermentation is to ferment the prepared spherical microbial pellets in a dark place at constant temperature and humidity, and place the prepared spherical microbial pellets in a constant temperature and constant humidity drying box for constant temperature and dark fermentation. The white hyphae are formed on the surface of the microbial pellets.

In particular, the fermentation temperature is 25-30°C.

Especially, the fermentation humidity is 20-25%.

In particular, the fermentation time is 3-5d.

Wherein, the diameter of the microbial pellets is 8-12 mm, and the filling rate in the aerobic treatment device is 15-20 mg/L water.

Wherein, the partition includes a plurality of upper partitions and lower partitions.

In particular, the staggered arrangement of the upper partitions and the lower partitions isolates each microbial pellet unit from each other.

Wherein, the aeration device includes a fan and a plurality of aeration distribution devices connected thereto.

In particular, the aeration and distribution device includes a plurality of aeration heads distributed in rows.

In particular, the plurality of aeration heads are longitudinally distributed on one side of the lower partition, during operation, the sewage in the aerobic treatment device is forced to rise along one side of the partition through aeration, and pass through the adjacent upper partition in turn. The bottom of the partition and the top of the lower partition form up and down reciprocating baffles, thereby prolonging the contact time between the sewage containing synthetic musk and the plurality of microbial pellet units.

In particular, the aeration and distribution device is a ceramic membrane material.

Wherein, the aerobic treatment device also includes:

The carrier separator located at the water outlet of the aerobic treatment device is used to separate the effluent treated by the aerobic treatment device and the microbial pellets, and retain the microbial pellets in the aerobic treatment device.

The sewage that has undergone the degradation treatment is introduced into the sedimentation device for sludge sedimentation treatment. After the sedimentation treatment, the pollutants in the sewage sink to the bottom of the tank, and the supernatant is the treated effluent.

Principle of the present invention and working process are as follows:

First, the sewage containing synthetic musk is introduced into the aerobic treatment device, which is filled with a plurality of microbial pellets composed of Bacillus subtilis and solidified embedding agent, and the upper and lower partitions in the aerobic treatment device Multiple microbial pellets are isolated into multiple microbial pellet units, and multiple aeration devices distributed in rows are arranged on one side of each lower partition to form aeration in the aerobic treatment device, and the sewage containing synthetic musk After entering the aerobic treatment device, under the force of aeration, it rises along one side of the partition, and passes through the bottom of the adjacent upper partition and the top of the lower partition in turn, forming up and down reciprocating baffles, thus prolonging the interaction with multiple microbial cells. During the contact time of the ball unit, the microbial balls use the solidified embedding agent to adsorb the synthetic musk in the sewage, and use the Bacillus subtilis to degrade the adsorbed synthetic musk, so that the synthetic musk in the sewage is fully degraded. The effluent treated by the aerobic treatment device flows through the carrier separator and enters the sedimentation tank, where the sedimentation treatment is carried out. The pollutants in the sewage are settled to the bottom of the tank to form sludge, and the supernatant is the treated effluent.

Advantage of the present invention and beneficial technical effect are as follows:

1, the device that the present invention removes synthetic musk in sewage handles the sewage that contains synthetic musk by microbe pellet, and microbe pellet is the sphere that contains Bacillus subtilis and solidified embedding agent, and solidifying embedding agent is to the synthetic musk in sewage Adsorption is carried out, and Bacillus subtilis degrades the adsorbed synthetic musk.

2, the present invention removes the device of synthesizing musk in the sewage to process the sewage that contains synthetic musk through the microbiological pellet, and described microbiological pellet adopts activated sludge and lignite-based activated carbon as solid embedding agent, and activated sludge can not only treat The synthetic musk in the sewage is adsorbed, and there are a large number of micelle bacteria and filamentous bacteria in the aerobic activated sludge. These bacteria can assist the Bacillus subtilis degrading bacteria to degrade the pollutants in the wastewater and improve the quality of the wastewater. Sedimentation adsorption efficiency and removal efficiency of synthetic musk substances.

3. The device of the present invention for removing synthetic musk in sewage processes the sewage containing synthetic musk through microbial pellets. The microbial pellets adopt activated sludge and lignite-based activated carbon as solid embedding agents. Powdered lignite activated carbon can not only act as Through cross-linking, the properties of microbial pellets can also be improved, and the strength and other properties of microbial pellets can be improved.

4. The device for removing synthetic musk in sewage according to the present invention treats the sewage containing synthetic musk through microbial pellets. The microbial pellets are spheres containing Bacillus subtilis and solidified embedding agent. Studies have shown that Bacillus subtilis is very suitable for It is used for the treatment of synthetic musk, with good treatment effect and high removal rate.

5. The device of the present invention for removing synthetic musk in sewage prolongs the contact time between the sewage containing synthetic musk and microbial pellets through the clapboard and aeration device arranged in the aerobic treatment device to make the sewage form deflections, so that the synthetic musk of sewage can be synthesized Musk was fully degraded by multiple microbial globule units.

6. The device of the present invention for removing synthetic musk in sewage has a good removal effect on synthetic musk in sewage, and the removal rate of musk of Jiale can reach 87.7-89.4%, and the removal rate of musk of breathing can reach 81.8-83.9%. After being treated by the device of the invention, the contents of COD _Cr , BOD ₅ , and NH ₃ -N in the effluent all decrease significantly, and the device of the invention is very suitable for removing synthetic musk pollutants in sewage.

Description of drawings

Fig. 1 is the device schematic diagram of the present invention to remove synthetic musk in sewage;

Fig. 2 is the top view of the device aerobic treatment device of the present invention's removal of synthetic musk in sewage;

Description of reference signs: 1. Aerobic treatment device; 2. Sedimentation tank; 3. Microbial pellets; 4. Upper partition; 5. Lower partition; 6. Fan; 7. Aeration and distribution device; 8. Carrier Separator; 9. Outlet weir; 10. Aeration head.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples.

Raw materials and reagents:

Bacillus subtilis (Bacillus subtilis) was purchased from the Microorganism Collection Center of the Chinese Academy of Sciences, CGMCC No. 205027; lignite-based activated carbon: purchased from Inner Mongolia Baorixile Coal Mine, moisture: 38.5-52.6%; ash: 1.68-10.32%; volatile matter : 37.98-54.65%; fixed carbon: 28.20-33.80%; total sulfur content: 0.38-0.75%, particle size: 50-80 mesh; pore size: 2-50nm; activated sludge is taken from a sewage plant in Miyun County, Beijing Gas cell, moisture content 80-85%; cellulose was purchased from Beijing Hongyu Reagent Co., Ltd., analytically pure, white powder, odorless and tasteless, content ≥ 99%; 101 support was purchased from Beijing Hongyu Reagent Co., Ltd., analytically pure , white powder, odorless and tasteless, content ≥ 99%; 6201 carrier was purchased from Beijing Hongyu Reagent Co., Ltd., analytically pure, light red amorphous granular, content ≥ 99%; beef extract was purchased from Beijing Hongyu Reagent Co., Ltd., Analytical pure, yellowish brown to tan paste, content ≥ 99%, of which solid matter ≥ 75%; peptone was purchased from Beijing Hongyu Reagent Co., Ltd., analytically pure, light yellow powder, content ≥ 99%; sodium chloride Purchased from Beijing Hongyu Reagent Co., Ltd., analytically pure, white crystalline powder, content ≥99%; agar powder was purchased from Beijing Hongyu Reagent Co., Ltd., white or slightly yellow powder, content ≥99%.

As shown in FIG. 1 , the device for removing synthetic musk in sewage according to the present invention includes an aerobic treatment device 1 and a precipitation device 2 .

As shown in Figure 1 and Figure 2, the aerobic treatment device 1 is used for microbial degradation and adsorption treatment of sewage, including a plurality of microbial pellets 3 filled in the aerobic treatment device, vertically arranged in the aerobic treatment device The upper partition 4 and the lower partition 5 are located at the aeration device at the bottom of the aerobic treatment device. The aeration device includes a fan 6 and an aeration distribution device 7. The aeration distribution device 7 includes a plurality of aeration devices distributed in rows. Gas head 10, carrier separator 8 and water outlet weir 9 located at the water outlet of the aerobic treatment device.

The microbial pellet 3 is a sphere containing Bacillus subtilis and a solidified embedding agent, each microbial pellet utilizes the solidified embedding agent to adsorb the synthetic musk in the sewage, and utilizes the Bacillus subtilis to adsorb the synthetic musk Degradation; the upper partition 4 and the lower partition 5 are staggered to isolate each microbial pellet unit from each other, and the aeration head 10 is longitudinally distributed on one side of the lower partition. The sewage in the oxygen treatment device rises along one side of the partition, and passes through the bottom of the adjacent upper partition and the top of the lower partition in turn, forming up and down reciprocating baffles, thereby prolonging the separation between the sewage containing synthetic musk and the polysaccharide. The contact time of a microbial pellet unit; the carrier separator 8 is used to separate the effluent treated by the aerobic treatment device and the microbial pellets, and the microbial pellets are retained in the aerobic treatment device.

The sewage that has undergone the degradation treatment is introduced into the sedimentation device 2 for sludge sedimentation treatment. After the sedimentation treatment, the pollutants in the sewage sink to the bottom of the tank, and the supernatant is the treated effluent.

Example 1

1. Expanded culture of Bacillus subtilis

Prepare the solid medium according to the following ratio: beef extract 5g, peptone 10g, NaCl 5g, agar powder 15g, add water to 1000mL; sterilize the solid medium at 121°C for 30min; After 30 minutes, turn on the fluorescent lamp, burn the inoculation needle red on the alcohol lamp, dip in the water sample of Bacillus subtilis, streak the inoculation on the flat medium and the slant medium, and incubate in the constant temperature incubator for 24 hours.

2. Centrifuge the dominant Bacillus subtilis that has completed the expanded culture to obtain wet bacteria with a concentration of 8.6×10 ⁵ CFU/mL.

3. Take by weighing 400 mg of wet thallus in a beaker, add 45 mg cellulose, 45 mg 101 support, 10 mg6201 support, stir evenly with a glass rod, add 1440 mg activated sludge, 160 mg powder lignite-based activated carbon, Stir well to get a viscous mixed raw material;

Wherein, the mass ratio of wet thallus to additive is 80:20, the mass ratio of wet thallus to solidified embedding agent is 20:80, the mass ratio of activated sludge to activated carbon is 90:10, cellulose , 101 support and 6201 support mass ratio is 45:45:10.

4. Agglomerate the mixed raw materials into spherical microbial pellets, and then place them in a drying oven to avoid light and ferment for 4 days. The temperature of the drying oven is 28°C and the humidity is 22%. White hyphae are formed on the surface of the microbial pellets. .

Example 2

1. Expanded culture of Bacillus subtilis

Prepare the solid medium according to the following ratio: beef extract 5g, peptone 10g, NaCl 5g, agar powder 15g, add water to 1000mL; sterilize the solid medium at 121°C for 30min; After 30 minutes, turn on the fluorescent lamp, burn the inoculation needle red on the alcohol lamp, dip in the water sample of Bacillus subtilis, streak the inoculation on the flat medium and the slant medium, and incubate in the constant temperature incubator for 24 hours.

2. Centrifuge the dominant Bacillus subtilis that has completed the expanded culture to obtain wet bacteria with a concentration of 6.2×10 ⁶ CFU/mL.

3. Take by weighing 900 mg of wet thallus in a beaker, add 35 mg cellulose, 35 mg 101 support, 30 mg6201 support, stir with a glass rod, add 1080 mg activated sludge, 270 mg powder lignite-based active carbon, Stir well to get a viscous mixed raw material;

Wherein, the mass ratio of wet thallus to additive is 90:10, the mass ratio of wet thallus to solidified embedding agent is 40:60, the mass ratio of activated sludge to activated carbon is 80:20, cellulose , 101 support and 6201 support mass ratio is 35:35:30.

4. Agglomerate the mixed raw materials into spherical microbial pellets, and then place them in a drying oven to avoid light and ferment for 5 days. The temperature of the drying oven is 25°C and the humidity is 20%. After white mycelia are formed on the surface of the microbial pellets, the product is obtained. .

Example 3

1. Expanded culture of Bacillus subtilis

Prepare the solid medium according to the following ratio: beef extract 5g, peptone 10g, NaCl 5g, agar powder 15g, add water to 1000mL; sterilize the solid medium at 121°C for 30min; After 30 minutes, turn on the fluorescent lamp, burn the inoculation needle red on the alcohol lamp, dip in the water sample of Bacillus subtilis, streak the inoculation on the flat medium and the slant medium, and incubate in the constant temperature incubator for 24 hours.

2. Centrifuge the dominant Bacillus subtilis that has completed the expanded culture to obtain wet bacteria, the concentration of which is 2.5×10 ⁷ CFU/mL.

3. Weigh 566.7 mg of the prepared wet bacteria in a beaker, add 40 mg of cellulose, 40 mg of 101 support, 20 mg of 6201 support, stir evenly with a glass rod, add 1128.9 mg of activated sludge and 198.3 mg of powdered lignite base activated carbon, fully stirred evenly to obtain viscous mixed raw materials;

Wherein, the mass ratio of wet thallus to additive is 85:15, the mass ratio of wet thallus to solidified embedding agent is 30:70, the mass ratio of activated sludge to activated carbon is 85:15, cellulose , 101 support and 6201 support mass ratio is 40:40:20.

4. Agglomerate the mixed raw materials into spherical microbial pellets, and then place them in a drying oven to ferment for 3 days in the dark. The temperature of the drying oven is 30°C and the humidity is 25%. After white mycelium is formed on the surface of the microbial pellets, the product is obtained. .

Example 4

Taking the processed effluent of the domestic sewage treatment station on the second floor of a residential area in Beijing as an example, the device of the present invention is used to carry out advanced treatment on it.

The sewage is introduced into the aerobic treatment device, and the microbial pellets prepared in Examples 1-3 are respectively filled to carry out microbial degradation and adsorption treatment of the synthetic musk in the sewage; wherein the size of the aerobic treatment device: 6000 × 3600 × 4500mm, the microbial pellets The filling rate in the aerobic treatment device is kept at 15-20mg/L water, and it is added once every two weeks; the aeration rate of the aerobic treatment device is kept at 5-40m ³ /min, so that the dissolved oxygen (DO) in the sewage The concentration is 2-5mg/L.

The sewage that has undergone microbial degradation and adsorption treatment is introduced into the sedimentation tank for sedimentation treatment. The size of the sedimentation tank is 4000×2000×4500mm, and the sedimentation treatment time is 60-120min. After the sedimentation treatment, the obtained supernatant is the treated out of water.

The water quality before and after treatment of various pollutants in sewage is shown in Table 1.

Table 1 The water quality situation before and after the treatment of sewage with the microbial pellets prepared in Examples 1-3 respectively

It can be seen from the data that the device of the present invention has a good removal effect on synthetic musk pollutants in sewage, and the removal rate of musk can reach 87.7-89.4%, and the removal rate of musk can reach 81.8-83.9%. After being treated by the device of the invention, the contents of COD _Cr , BOD ₅ , and NH ₃ -N in the effluent are significantly reduced, and the device of the invention is very suitable for removing synthetic musk pollutants in sewage.

Although the present invention has been described in detail above, the present invention is not limited thereto, and those skilled in the art can make modifications according to the principle of the present invention, therefore, all various modifications carried out according to the principle of the present invention should be understood as falling within the scope of the present invention. protection scope of the present invention.

Claims (9)

1. A device for removing synthetic musk in sewage, is characterized in that, comprising: Aerobic treatment device for microbial degradation and adsorption treatment of sewage; The sedimentation device is used to settle the sewage that has undergone microbial degradation and adsorption treatment, and obtain and discharge the supernatant; Wherein, the aerobic treatment device includes: A plurality of microbial pellet units filled in the aerobic treatment device, each microbial pellet unit is composed of a plurality of microbial pellets, each microbial pellet is a sphere containing Bacillus subtilis and solidified embedding agent, Each microbial pellet utilizes the solidified embedding agent to adsorb the synthetic musk in the sewage, and utilizes the Bacillus subtilis to degrade the adsorbed synthetic musk; A plurality of partitions vertically arranged in the aerobic treatment device are used to isolate the plurality of microbial pellet units, so that each microbial pellet unit is isolated from each other; The aeration device located at the bottom of the aerobic treatment device is used to make the microbial spheres perform microbial degradation and adsorption treatment on the sewage in a suspended state; By forming aeration at the bottom of the aerobic treatment device, the sewage in the aerobic treatment device is forced to pass through the bottom and top of the adjacent partitions in sequence under the blocking action of the plurality of partitions, forming an up and down reciprocating baffle , thereby prolonging the contact time between the sewage containing synthetic musk and the plurality of microbial pellet units. 2. the device that removes synthetic musk in sewage as claimed in claim 1, is characterized in that, described microbe pellet comprises: Adsorb the solidified embedding agent of the synthetic musk in the said sewage; Bacillus subtilis that degrades adsorbed synthetic musk; Additives that support the globule structure of the fouling microorganisms. 3. the device for removing synthetic musk in sewage as claimed in claim 2, is characterized in that, described solidification embedding agent comprises activated sludge and gac. 4. the device that removes synthetic musk in sewage as claimed in claim 3, is characterized in that, the ratio of the mass of described activated sludge and gac is 80-90:10-20. 5. the device that removes synthetic musk in sewage as claimed in claim 2 is characterized in that, described additive selects cellulose, 101 carrier and 6201 carrier. 6. the device that removes synthetic musk in sewage as claimed in claim 2, is characterized in that, described microbial pellet is prepared by following method: (1) Inoculate the Bacillus subtilis bacterial classification in the solid-state culture medium, and carry out expanded cultivation; (2) centrifuging the dominant Bacillus subtilis that has completed the expanded culture to obtain wet thallus; (3) Adding additives to the wet thalline, stirring evenly to obtain a suspension; (4) Add the solidified embedding agent to the mixed suspension, stir evenly, and prepare the mixed raw material; (5) The mixed raw materials are agglomerated into spherical microbial pellets, fermented in the dark, and white hyphae are formed on the surface of the microbial pellets. 7. the device for removing synthetic musk in sewage as claimed in claim 6, is characterized in that, the ratio of the mass of described wet thalline and described solidification embedding agent is 20-40:60-80. 8. the device for removing synthetic musk in sewage as claimed in claim 7, is characterized in that, the ratio of the mass of described wet thalline and described additive is 80-90:10-20. 9. The device for removing synthetic musk in sewage as claimed in claim 1, wherein said aeration device is a ceramic membrane material.