Preparation method of suspended packing bioreactor and application thereof

A technology of biological filler and reclaimed rubber powder, applied in the direction of sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of unfavorable mass production, complex structure design, increased production cost, etc., and achieve shortening The film-hanging cycle, the effect of improving the treatment effect, and the effect of fast film-hanging speed

Active Publication Date: 2015-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned patents increase the specific surface area of ​​the filler carrier to a certain extent and improve the hydrophilic performance of the filler, but the complexity of the structural design and the increase in processing difficulty correspondingly lead to an increase in production costs, which is not conducive to mass production

Method used

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  • Preparation method of suspended packing bioreactor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The magnetic powder, reclaimed rubber powder, zeolite, maleic anhydride, dicumyl peroxide, chitin, coke powder, and slag powder are crushed and passed through a 200-mesh sieve. Weigh 0.2kg of ferroferric oxide magnetic powder, 8kg of reclaimed rubber powder, 8kg of zeolite, 3kg of maleic anhydride, 0.5kg of dicumyl peroxide, 1.5kg of chitin, 5kg of coke powder, and 2kg of slag powder in a high-speed mixer Mix well, then add 75kg of high-density polyethylene and stir at high speed. Add the mixture into the silo of the twin-screw granulator, and complete the granulation process through the twin-screw granulator. After granulation, the granules are added to the silo of the twin-screw extruder, through heating, moulding, vacuum setting, cooling, and mechanical opening (the opening machine is a rolling high-temperature probe, the pillow temperature is greater than 250°C, and the needle size is 200nm) , cutting. Finally, the filler was irradiated with ultraviolet light with...

Embodiment 2

[0028] The magnetic powder, reclaimed rubber powder, zeolite, maleic anhydride, dicumyl peroxide, chitin, coke powder, and slag powder are crushed and passed through a 200-mesh sieve, wherein the magnetic powder is trioxide tetroxide with a mass ratio of 9:1 Ferromagnetic powder and manganese zinc ferrite mixture. Weigh 0.6kg of magnetic powder, 8kg of reclaimed rubber powder, 8kg of zeolite, 3kg of maleic anhydride, 0.5kg of dicumyl peroxide, 1.5kg of chitin, 5kg of coke powder, and 2kg of slag powder, and place them in a high-speed mixer to fully mix them , and then add 70kg of high-density polyethylene and mix well. Add the mixture into the silo of the twin-screw granulator, and complete the granulation process through the twin-screw granulator. After granulation, the granules are added to the silo of the twin-screw extruder, through heating, moulding, vacuum setting, cooling, and mechanical opening (the opening machine is a rolling high-temperature probe, the pillow tempe...

Embodiment 3

[0036]Get the same amount of products A, B, C, D, and E obtained in Examples 1-2 and Comparative Examples 1-3 and soak them in water for 4 hours, then take them out and let them stand for 30 minutes to measure their moisture content. The moisture contents of products A, B, C, D, and E are 18.5, 19.2, 14.7, 14.4, and 9.6, respectively. The contact angles of products A, B, C, D, and E were measured and calculated with a contact angle measuring instrument, and they were 62°, 60°, 75°, 72°, and 81°, respectively. The results show that the hydrophilic property of the suspended biological filler prepared by the present invention is greatly improved.

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Abstract

The invention provides a preparation method of a suspended packing bioreactor. The preparation method comprises the following steps: (1) uniformly mixing 0.2-0.6 part by weight of magnetic powder, 7-10 parts by weight of recycled rubber powder, 3-12 parts by weight of zeolite, 2-8 parts by weight of maleic anhydride, 0.2-0.8 part by weight of dicumyl peroxide, 0.5-2 parts by weight of chitin, 3-5 parts by weight of powdered coke and 1-2 parts by weight of slag powder, adding 70-75 parts by weight of high density polyethylene, and stirring at high speed; (2) adding the above mixed materials into a screw pelletizer and pelleting; (3) putting the pelleted particles into a screw extruder and carrying out extrusion molding, carrying out vacuum setting, cooling, carrying out mechanical holing, and carrying out cutting forming; and (4) finally irradiating the packing bioreactor by short wave ultraviolet. According to the invention, hydrophily of the suspended packing bioreactor is greatly enhanced, surface adsorbing capacity is increased, biofilm adsorption strength is raised, biofilm culturing period is shortened, and the biofilm is not easy to fall off. The suspended packing bioreactor is suitable for processing low concentration organic wastewater and phenolic wastewater.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a preparation method and application of a suspended biological filler suitable for a moving bed biofilm reactor. Background technique [0002] In the biofilm method, the filler is one of the key technologies for wastewater treatment as a habitat for microorganisms, and its performance directly affects the treatment effect and investment cost. Since the 1970s, scientific researchers have continuously promoted the development of the biofilm method by improving the filler as a breakthrough. At present, the commonly used fillers in China are fixed fillers such as honeycomb fillers, soft fillers, semi-soft fillers and composite fillers. However, these fillers often encounter problems such as blockage, agglomeration, and uneven air and water distribution during use, which affects effect of biological treatment. And the above-mentioned fillers all need to be installed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/10C02F101/34
CPCY02W10/10
Inventor 张鹏张广哲马和旭郭宏山
Owner CHINA PETROLEUM & CHEM CORP
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