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Device for removing synthetic musk in sewage

A technology for synthesizing musk and sewage, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of synthetic musk pollution, secondary pollution, hazards, etc., to achieve The effect of improving sedimentation adsorption efficiency and removal efficiency

Inactive Publication Date: 2015-07-29
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Device for removing synthetic musk in sewage
  • Device for removing synthetic musk in sewage
  • Device for removing synthetic musk in sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] 1. Expanded culture of Bacillus subtilis

[0082] 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.

[0083] 2. Centrifuge the dominant Bacillus subtilis that has completed the expanded culture to obtain wet thallus, and the concentration of wet thallus is 8.6×10 5 CFU / mL.

[0084] 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;

[0085] Wherein, the ...

Embodiment 2

[0088] 1. Expanded culture of Bacillus subtilis

[0089] 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.

[0090]2. Centrifuge the dominant Bacillus subtilis that has completed the expanded culture to obtain wet thallus, and the concentration of wet thallus is 6.2×10 6 CFU / mL.

[0091] 3. Take by weighing 900 mg of wet thallus in a beaker, add 35 mg cellulose, 35 mg 101 support, 30 mg6201 support, stir evenly 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;

[0092] Wherein, the mass...

Embodiment 3

[0095] 1. Expanded culture of Bacillus subtilis

[0096] 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.

[0097] 2. Centrifuge the dominant Bacillus subtilis that has completed the expanded culture to obtain wet thallus, and the concentration of wet thallus is 2.5×10 7 CFU / mL.

[0098] 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 mi...

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Abstract

The invention provides a device for removing synthetic musk in sewage. The device comprises an aerobic treatment device and a sedimentation device, wherein the aerobic treatment device comprises a plurality of small microbial spheres arranged in the aerobic treatment device, a plurality of baffles vertically arranged in the aerobic treatment device, an aeration device located at the bottom of the aerobic treatment device as well as a carrier separator and an effluent weir which are located at a water outlet of the aerobic treatment device. Under the action of aeration and blockage with the baffles, the sewage sequentially passes through bottom ends and top ends of the adjacent baffles to form baffling flow which reciprocates up and down, and contact time with the plurality of small microbial spheres is prolonged; the small microbial spheres are spheres containing bacillus subtilis and a curing embedding agent, the curing embedding agent is used for adsorbing the synthetic musk in the sewage, and the bacillus subtilis is used for degrading the adsorbed synthetic musk; the degraded sewage is subjected to sedimentation treatment in the sedimentation device, and a supernatant is treated effluent.

Description

technical field [0001] The invention relates to a device for removing synthetic musk in sewage, belonging to the field of environmental protection. Background technique [0002] 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 mus...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/02C02F3/34
CPCY02W10/10
Inventor 张春晖王亮亮唐佳伟高翔宇何旭丹王凯
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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