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A method for removing synthetic musk in sewage

A technology for synthesizing musk and sewage, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of synthetic musk pollution, secondary pollution, high cost, etc., and improve settlement Effects of adsorption efficiency, strength improvement, and property improvement

Inactive Publication Date: 2017-01-11
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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  • A method for removing synthetic musk in sewage
  • A method for removing synthetic musk in sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 1. Expanded culture of Bacillus subtilis

[0067] 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.

[0068] 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.

[0069] 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;

[0070] Wherein, the ...

Embodiment 2

[0073] 1. Expanded culture of Bacillus subtilis

[0074] 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.

[0075] 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.

[0076] 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;

[0077] Wherein, the mas...

Embodiment 3

[0080] 1. Expanded culture of Bacillus subtilis

[0081] 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.

[0082] 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.

[0083] 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 method for removing synthesis musk in sewage, which comprises the following steps: introducing synthesis musk-containing sewage in an aerobic processing apparatus having several microorganism balls, prolonging the contact time of the synthesis musk-containing sewage and several microorganism balls units, fully degrading the synthesis musk by several microorganism balls units, then introducing the degraded sewage in a deposition apparatus for sludge deposition treatment to obtain a supernatant; wherein each microorganism balls unit is composed of several microorganism balls, each microorganism ball is the ball containing bacillus subtilis and a cured embedding agent, each microorganism ball uses the cured embedding agent for absorbing the synthesis musk in sewage and uses the bacillus subtilis for degrading the attached synthesis musk. The method is used for deeply processing the sewage, and the synthesis musk content in the processed water is low, and clearance rate is high.

Description

technical field [0001] The invention relates to a method for removing synthetic musk in sewage, in particular to a method for removing synthetic musk in sewage by using microbial pellets and an aerobic reactor, and belongs 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02C02F3/12C02F3/34
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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