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Membrane bioreactor process used in vitamin pharmaceutical wastewater treatment

A membrane bioreactor and pharmaceutical wastewater technology, which is applied in energy wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the color and odor of wastewater, large pH fluctuations, high investment in treatment, etc. problems, to achieve the effects of reduced treatment costs, easy operation, and high aeration efficiency

Active Publication Date: 2014-11-05
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The composition of Vc pharmaceutical wastewater is relatively complex, containing high concentrations of organic substances, the pH value fluctuates greatly, the wastewater has color and peculiar smell, the treatment investment is high, and the treatment is difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Taking pharmaceutical wastewater from a vitamin pharmaceutical factory as the treatment object, the wastewater has a high concentration of organic matter and a low pH. The wastewater contains a large amount of protein, sorbose, sodium gluconate, VC-Na and various acid pollutants, which is a difficult treatment. Pharmaceutical wastewater; among them, CODcr is 500mg / L, BOD 5 The total nitrogen content is 23.7mg / L, the total nitrogen content is 90mg / L, and the pH is 6.0-9.0.

[0026] A membrane bioreactor process for vitamin pharmaceutical wastewater treatment, comprising the following steps:

[0027] Step 1): Use a high-efficiency compound flocculant to remove small molecular organic matter in Vc wastewater. After passing through the flocculation and coagulation reactor, the inclined plate sedimentation tank is used for sedimentation treatment. The clarified liquid enters the JET LOOP MBR, and the sludge is dehydrated and shipped out;

[0028] Step 2): The wastewater ini...

Embodiment 2

[0037] Taking pharmaceutical wastewater from a vitamin pharmaceutical factory as the treatment object, the wastewater has a high concentration of organic matter and a low pH. The wastewater contains a large amount of protein, sorbose, sodium gluconate, VC-Na and various acid pollutants, which is a difficult treatment. Pharmaceutical Wastewater. Among them, CODcr is 223mg / L, pH6.0-9.0.

[0038] A membrane bioreactor process for vitamin pharmaceutical wastewater treatment, comprising the following steps:

[0039] Step 1): Use a high-efficiency compound flocculant to remove small molecular organic matter in Vc wastewater. After passing through the flocculation and coagulation reactor, the inclined plate sedimentation tank is used for sedimentation treatment. The clarified liquid enters the JET LOOP MBR, and the sludge is dehydrated and shipped out;

[0040] Step 2): The wastewater initially treated in step 1) is aerobically treated in the JET LOOP MBR. The membrane in the MBR remo...

Embodiment 3

[0049] Taking pharmaceutical wastewater from a vitamin pharmaceutical factory as the treatment object, the wastewater has a high concentration of organic matter and a low pH. The wastewater contains a large amount of protein, sorbose, sodium gluconate, VC-Na and various acid pollutants, which is a difficult treatment. Pharmaceutical Wastewater. Among them, CODcr is 107mg / L, pH6.0-9.0.

[0050] A membrane bioreactor process for vitamin pharmaceutical wastewater treatment, comprising the following steps:

[0051] Step 1): Use a high-efficiency compound flocculant to remove small molecular organic matter in Vc wastewater. After passing through the flocculation and coagulation reactor, the inclined plate sedimentation tank is used for sedimentation treatment. The clarified liquid enters the JET LOOP MBR, and the sludge is dehydrated and shipped out;

[0052] Step 2): The wastewater initially treated in step 1) is aerobically treated in the JET LOOP MBR. The membrane in the MBR re...

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PUM

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Abstract

The invention relates to a membrane bioreactor process used in vitamin pharmaceutical wastewater treatment. Small-molecular organics in Vc wastewater is removed with a high-efficiency complex flocculant; through processes with flocculation and coagulation reactor, the material is subjected to a sedimentation treatment by using an inclined board sedimentation tank; clarified liquid enters JET LOOP MBR, and sludge is dehydrated and delivered out; wastewater is subjected to aerobic treatment in the JET LOOP MBR; with the membrane in MBR, suspended particles and organic large molecules are removed from the wastewater, and microbes are retained in the reactor. Water discharged from MBR enters Green line and UF; With Green line, sunlight is adopted as an energy, carbon capture is carried out with photosynthesis of algae species; absorption and decomposition are carried out, ammonia nitrogen and phosphorus are converted, and heavy metal and small molecules in discharged water are removed; with UF, superfluous and aged algae species are separated; a filtrate is subjected to active carbon absorption discoloration, such that partial COD and trace color are removed. The process provided by the invention has the advantages of simple operation, low energy consumption, no secondary pollution, and the like.

Description

technical field [0001] The invention relates to the technical field of pharmaceutical wastewater treatment, in particular to a membrane bioreactor process for vitamin pharmaceutical wastewater treatment. Background technique [0002] With the country's increasingly stringent requirements for water conservation and emission reduction in the process industry, building a water-saving and water-environment-friendly pharmaceutical enterprise has become the most urgent task for vitamin manufacturers. [0003] Since the late 1990s, newly built Vc wastewater treatment plants have mostly adopted an anaerobic + aerobic combined treatment process. There are few engineering examples that have successfully treated Vc wastewater alone. As far as the engineering examples that have been reported, the follow-up aerobic treatment processes adopted include biological contact oxidation process, oxidation ditch process and deep well aeration process, and the project of SBR process to treat Vc wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCY02W10/37
Inventor 李继定郑冬菊秦琳房满权夏阳王涛刘寿山
Owner TSINGHUA UNIV
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