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Fixed microbial suspension ceramic carrier and production thereof

A ceramic carrier, a carrier technology, applied in the direction of fixing on or in an inorganic carrier, chemical instruments and methods, sustainable biological treatment, etc., can solve the problems of application limitation, high price, poor biological activity, etc.

Inactive Publication Date: 2007-06-20
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The immobilized microbial suspension carrier in the prior art is currently mainly made of plastic material, which has defects such as high price, poor biological activity, chemical resistance, and poor thermal stability, so its application is limited to a certain extent

Method used

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  • Fixed microbial suspension ceramic carrier and production thereof
  • Fixed microbial suspension ceramic carrier and production thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The main steps of the preparation method of the immobilized microbial suspension carrier of the present invention are as follows in sequence:

[0015] (1) Ingredients step

[0016] The ceramic tailings or copper mine tailings, clay, etc. are ground and compounded and mixed according to one of the following formulas (weight percentages) to make ceramic mud, and the organic pore-forming agent is mixed in 20-30% (volume).

[0017] Formula 1: Ceramic tailings 45-65%

[0018] Phosphate rock sludge 17-35%

[0019] Bentonite 8-15%

[0020] Organic binder 10-15%

[0021] Formula 2: Copper ore tailings 50-70%

[0022] Ceramic tile polishing slag 14-30%

[0023] Bentonite 8-18%

[0024] Organic binder 8-15%

[0025] (2) Molding steps

[0026] The ceramic ingredients and the pore-forming agent are kneaded into mud material with a certain plasticity, and put into a mold to make a sphere or an equiaxed body with a diameter of 2-5 cm.

[0027] (3) Drying step

[0028] Dry t...

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Abstract

A fixed microbial suspended ceramic carrier and its production are disclosed. The carrier is sphere or equiaxial cylinder with diameter 2-5cm, it consists of core, surface layer and active substance, part is closed which is centered in core, part is opened which is on surface layer and active substance with three-dimensional net structure, and pore size is discontinuous distribution. Its advantages include less dynamic consumption and pressure loss, higher transmission speed ratio and sewage treating efficiency, better activity and easy membrane unloading.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a ceramic carrier which can be suspended in water and a preparation method thereof. The ceramic carrier is used in an aeration tank of a suspended packing moving bed sewage treatment process as a carrier of immobilized microorganisms. Background technique [0002] The suspended carrier biofilm sewage treatment method is also called the suspended packing moving bed sewage treatment process (referred to as MBBR). The aeration and the lifting effect of the water flow enable the suspended carrier to be in frequent and full contact with the sewage. Because it absorbs the advantages of both the traditional fluidized bed method and the biological contact oxidation method, it not only has the characteristics of stability, impact resistance, long sludge age and less residual sludge of the traditional biofilm method, but also has the characteristics of the activated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C12N11/14
CPCY02W10/10
Inventor 夏光华喻佑华魏恒勇艾凡荣叶润康
Owner JINGDEZHEN CERAMIC UNIV