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Preparation method of novel microorganism high-enrichment filler

A microorganism and enrichment technology, which is applied to the treatment of granular microorganism carriers, clay preparation devices, chemical instruments and methods, etc., can solve the problems of high preparation cost, waste of land resources, and low microbial adhesion, and achieves low preparation cost, Long service life and easy cleaning

Pending Publication Date: 2021-03-09
NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problems of waste of land resources, high preparation cost, and low microbial adhesion of the inorganic filler materials used in the biofilm treatment system, the present invention uses fly ash and dewatered sludge as the main raw materials, adopts a sintering-free process, and develops a new type of microbial high-rich Concentrated density packing can promote the efficient and stable operation of the biofilm treatment system, and provide certain scientific basis and technical support for the application of new packing in the biofilm treatment system

Method used

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  • Preparation method of novel microorganism high-enrichment filler

Examples

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Embodiment 1

[0022] Example 1: The preparation method of the new microbial high-enrichment filler, the steps are as follows: (1) After the dewatered sludge dried at 105°C is pulverized by a ball mill, it is passed through a 100-mesh sieve, and the dewatered sludge, calcium oxide , cement, fly ash, additives and other raw materials are mixed according to the ratio of 15:5:25:55, in which the additive is aluminum powder, and its addition amount is 0.02%. The aluminum powder additive is used to improve the void structure of the filler and increase the specific surface area. Add 30%~35% water per unit mass of raw material, and stir evenly; (2) Use a mold to press the mixed raw material into a prefabricated shape, including the outer contour and internal hole-like channel; (3) The formed filler is in the Curing with wet gauze at room temperature (25°C) for 12 hours, so that the hydration reaction of the various raw materials inside the filler will continue, and more gelled hydration products wil...

Embodiment 2

[0026] Example 2: The preparation method of a new type of microbial high-enrichment filler, the characteristic steps are as follows: (1) After the dewatered sludge dried at 105 ° C is pulverized by a ball mill, it is passed through a 100-mesh sieve, and the dehydrated sludge, calcium oxide , cement, fly ash, additives and other raw materials are mixed according to the mass ratio of 15:5:25:55, in which the additive is aluminum powder, and its addition amount is 0.02%. The aluminum powder additive is used to improve the void structure of the filler and increase the specific surface area . Add 30%~35% water per unit mass of raw material, and stir evenly; (2) Use a mold to press the mixed raw material into a prefabricated shape, including the outer contour and internal hole-like channel; (3) The formed filler is in the Curing with wet gauze at room temperature (25°C) for 12 hours, so that the hydration reaction of the various raw materials inside the filler will continue, and mor...

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Abstract

The invention discloses a preparation method of a novel microorganism high-enrichment filler, the structure of the filler is in a regular polyhedron shape, the cross section of the filler is square orregular hexagonal, regular porous channels are arranged in the filler, and the pore section is circular. The side length of the section of the microorganism high-enrichment filler is about 100 mm, the length is about 100 mm, and the diameter of the filler hole-shaped channel is about 10-20 mm. The filler is used by combining various section shapes, and has the characteristics of high porosity, low possibility of blockage, small flow resistance, convenience in cleaning and the like. The filler is a sintering-free filler and is integrally formed by pressing through a mold. The preparation method has the characteristics of high filler strength, low preparation cost, long service life and the like.

Description

technical field [0001] The invention relates to the field of environmental protection, and is especially suitable for the filling of biological aerated filters in rural sewage treatment systems. Background technique [0002] With the rapid development of economy and society in rural areas of our country, a large amount of rural sewage is produced in people's daily production and life. Due to the advantages of good treatment effect, large amount of active microorganisms per unit volume of filler, strong impact load resistance, no sludge bulking and convenient operation and management, the biofilm treatment system has been widely used in rural sewage treatment. As the carrier of microbial attachment and growth, the filler is the core component of the biofilm sewage treatment system, which directly affects the removal efficiency of sewage pollutants. At present, inorganic fillers are widely used in biofilm treatment systems at home and abroad, but most of the inorganic fillers...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B38/02B28B3/00B28B11/24B28C5/00C02F3/00C04B111/40
CPCB28B3/00B28B11/245B28C5/003C02F3/00C02F2003/001C04B28/00C04B38/02C04B2111/40C04B18/0418C04B18/08C04B22/04
Inventor 宫建瑞郑祥刘健袁道迎刘奎刘军程池权
Owner NANJING WONDUX ENVIRONMENTAL PROTECTION TECH CO LTD
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