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Geotechnical material of microbial granule and production method thereof

A technology of geotechnical materials and foam particles, applied in the field of materials, can solve the problems of difficult reuse of waste materials, difficult construction, high cost of building materials, etc., and achieve the effects of long-distance transportation and good thermal insulation effect

Inactive Publication Date: 2017-05-10
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems in the prior art that the waste materials are difficult to reuse, the cost of building materials is high, and the construction is difficult; Microbial cemented foam granular geotechnical material used in building materials and roadbed fillers and production method thereof

Method used

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  • Geotechnical material of microbial granule and production method thereof
  • Geotechnical material of microbial granule and production method thereof
  • Geotechnical material of microbial granule and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1-1 Preparation of Bacillus pasteurian bacteria liquid:

[0043] 1) Inoculate the culture medium with Bacillus pasteurianum, and culture it in a constant temperature shaker at 30°C and 121r / min for 30-40 hours.

[0044] Each liter of culture medium contains 20g of yeast extract, 25mg of manganese sulfate, 5mg of nickel chloride, 15g of ammonium chloride, and the pH is adjusted to 9-10 with sodium hydroxide.

[0045] 2) Take out the culture solution and concentrate it in a centrifuge at 4°C to make a Bacillus pasteurian bacteria solution.

[0046] The concentration of Pasteurella in the obtained Pasteurella bacteria liquid is 10 8 CFU / mL

[0047] 1-2 A geotechnical material of microbial cemented foam particles, characterized in that it comprises the following raw materials and parts by weight thereof:

[0048] 4.3 parts of foamed plastic particles or fragments;

[0049] 87 parts of calcareous sand;

[0050] 8.7 parts of Bacillus pasteurian bacteria liquid.

[0051]...

Embodiment 2

[0061] 2-1 Preparation of Bacillus pasteurian bacteria liquid:

[0062] 1) Inoculate the culture medium with Bacillus pasteurianum, and culture it in a constant temperature shaker at 30°C and 121r / min for 30-40 hours.

[0063] Each liter of culture medium contains 20g of yeast extract, 25mg of manganese sulfate, 5mg of nickel chloride, 15g of ammonium chloride, and the pH is adjusted to 9-10 with sodium hydroxide.

[0064] 2) Take out the culture solution and concentrate it in a centrifuge at 4°C to make a Bacillus pasteurian bacteria solution.

[0065] The concentration of Pasteurella in the obtained Pasteurella bacteria liquid is 10 9 CFU / mL

[0066] 2-2 A geotechnical material of microbial cemented foam particles, characterized in that it comprises the following raw materials and parts by weight:

[0067] 1.3 parts of foamed plastic particles or fragments;

[0068] Calcareous sand 92.8 parts;

[0069] 6.9 parts of Bacillus pasteurian bacteria liquid.

[0070] The partic...

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Abstract

The invention discloses a geotechnical material of microbial granule and a production method thereof. The material comprises, by weight, 1-5 parts of foam plastic particles or fragments, 80-95 parts of calcareous soil and 5-9 parts of Pasteurella multocida fluid. The geotechnical material prepared by the method has the advantages of being light in mass, medium in strength, and good in stability. The geotechnical material of microbial granule can be produced by using discarded foam material and calcareous material, thus the cost is low. The geotechnical material can be used as the filler material for man-made islands of roadbed and pipe, and can also be used for preparing building materials such as light building blocks.

Description

technical field [0001] The invention relates to the field of materials, in particular to a geotechnical material and a production method of microbial cemented foam particles. Background technique [0002] Foam material is a great invention of human beings, its use range is very wide, and its demand is very strong. But at the same time, it is also a substance that is difficult to degrade, and the commonly used disposal methods are generally landfill and incineration. [0003] Landfilling takes up large amounts of land, and incineration often produces large amounts of toxic gases. Neither of them is conducive to the green economy and sustainable development advocated today. The foam material is relatively light and floats on the sea surface, and fish often die due to eating it by mistake, and it will also hinder the photosynthesis of algae plants to purify the water body. Therefore, the harmless treatment of waste foam materials is of great significance. [0004] The dense...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B28/00C04B18/20C12N1/20C12R1/07
CPCC04B18/20C04B28/00C04B38/08C04B2111/24C04B2201/50C12N1/20C04B38/0067C04B14/06C04B2103/0001C04B22/124C04B24/126Y02W30/91
Inventor 何想肖杨肖鹏汪杨刘红
Owner CHONGQING UNIV
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