Biological preparations for treating waste water from xanthan gum fermentation process

Abstract

The invention belongs to the field of biotechnology, and discloses a biological preparation for treating waste water in a xanthan gum fermentation process, which comprises a combination of any two or more of Paracoccus denitrificans, Clostridium perfringens and Halomonas elongatus. The bacteria in the biological preparation of the invention can form a short-range virtuous cycle, have good synergistic performance, and effectively treat pollutants in waste water.

Description

technical field

[0001] The invention belongs to the field of biological technology, and in particular relates to a biological preparation for treating waste water in a xanthan gum fermentation process. Background technique

[0002] Water is the most precious wealth on earth and an indispensable material for the survival and development of human beings and all living things. At present, most of the fresh water resources on the earth that can be used by people are the surface water in the underground aquifer below the depth of 800m, accounting for only 2.6%. In fact, the water resources that can really be used as human life and production are only global a very small portion of the total water volume. The world's water crisis has seriously threatened the survival of human beings. More than one-fifth of the world's people will face medium-to-high water shortages. This pressure is warning the world of water shortages. The total amount of water resources in my country ranks fou...

Examples

Embodiment 1

[0030] A biological agent for treating waste water from a xanthan gum fermentation process, which is prepared according to the following process:

[0031] Mix kaolin and bentonite according to the mass ratio of 2:1, and then add them to a ball mill equipped with ball milling media (5mm silicon carbide balls, mass ratio of material balls: 1:5) for ball milling for 30min, dry at 80°C for 15min, and then pass 100 Mesh sieve to collect undersize;

[0032] Mix polyvinyl alcohol, attapulgite, urea, water, and undersieve according to the mass ratio of 3:5:7:70:100, and then put them into a granulator for granulation to obtain wet granules with a diameter of 1mm , then placed in 80 ℃ drying for 30 minutes, then placed in a resistance furnace for calcination at 1000 ℃ for 30 minutes, after natural cooling, ceramsite was obtained;

[0033] Mix bacterial agent A and ceramsite according to the ratio of 1L:2kg, and culture at 30°C for 6h.

[0034] Then add bacterial agent B, 40g / L sodium...

Embodiment 2

[0039] A biological agent for treating waste water from a xanthan gum fermentation process, which is prepared according to the following process:

[0040] Mix kaolin and bentonite according to the mass ratio of 2:1, and then add them to a ball mill equipped with ball milling media (5mm silicon carbide balls, mass ratio of material balls: 1:5) for ball milling for 30min, dry at 80°C for 15min, and then pass 100 Mesh sieve to collect undersize;

[0041] Mix polyvinyl alcohol, attapulgite, urea, water, and undersize according to the mass ratio of 3:5:7:70:100, and then put them into a granulator for granulation to obtain wet granules with a diameter of 2mm , then placed in 80 ℃ drying for 30 minutes, then placed in a resistance furnace for calcination at 1000 ℃ for 40 minutes, after natural cooling, ceramsite was obtained;

[0042] Mix bacterial agent A and ceramsite according to the ratio of 1L:2kg, and culture at 30°C for 6h.

[0043] Then add bacteria agent B, 50g / L sodium a...

Embodiment 3

[0049] Index detection of ceramsite in the present invention.

[0050] Porosity: use the boiling method of GB / T1966-1996 to measure the porosity of the sample;

[0051] Mechanical strength: measured by GBT1965 / 1996 test method for bending strength of porous ceramics.

[0052] The specific indicators are shown in Table 1:

[0053] Table 1

[0054] group Porosity% Mechanical Strength Mpa Density g / ml Example 1 72.8 14.6 1.04 Example 2 70.6 15.3 1.08

[0055] It can be seen that the porosity of the ceramsite carrier of the present invention reaches more than 70%, the pore diameter is between 0.1-10 microns, it is easy to process, the strength is high, the porosity is high, the density is close to water, it is in a suspended state, and the dispersion in waste water is good , which is conducive to the rapid adsorption and treatment of pollutants.

technical field

[0001] The invention belongs to the field of biological technology, and in particular relates to a biological preparation for treating waste water in a xanthan gum fermentation process. Background technique

[0002] Water is the most precious wealth on earth and an indispensable material for the survival and development of human beings and all living things. At present, most of the fresh water resources on the earth that can be used by people are the surface water in the underground aquifer below the depth of 800m, accounting for only 2.6%. In fact, the water resources that can really be used as human life and production are only global a very small portion of the total water volume. The world's water crisis has seriously threatened the survival of human beings. More than one-fifth of the world's people will face medium-to-high water shortages. This pressure is warning the world of water shortages. The total amount of water resources in my country ranks fou...

Examples

Embodiment 1

[0030] A biological agent for treating waste water from a xanthan gum fermentation process, which is prepared according to the following process:

[0031] Mix kaolin and bentonite according to the mass ratio of 2:1, and then add them to a ball mill equipped with ball milling media (5mm silicon carbide balls, mass ratio of material balls: 1:5) for ball milling for 30min, dry at 80°C for 15min, and then pass 100 Mesh sieve to collect undersize;

[0032] Mix polyvinyl alcohol, attapulgite, urea, water, and undersieve according to the mass ratio of 3:5:7:70:100, and then put them into a granulator for granulation to obtain wet granules with a diameter of 1mm , then placed in 80 ℃ drying for 30 minutes, then placed in a resistance furnace for calcination at 1000 ℃ for 30 minutes, after natural cooling, ceramsite was obtained;

[0033] Mix bacterial agent A and ceramsite according to the ratio of 1L:2kg, and culture at 30°C for 6h.

[0034] Then add bacterial agent B, 40g / L sodium...

Embodiment 2

[0039] A biological agent for treating waste water from a xanthan gum fermentation process, which is prepared according to the following process:

[0040] Mix kaolin and bentonite according to the mass ratio of 2:1, and then add them to a ball mill equipped with ball milling media (5mm silicon carbide balls, mass ratio of material balls: 1:5) for ball milling for 30min, dry at 80°C for 15min, and then pass 100 Mesh sieve to collect undersize;

[0041] Mix polyvinyl alcohol, attapulgite, urea, water, and undersize according to the mass ratio of 3:5:7:70:100, and then put them into a granulator for granulation to obtain wet granules with a diameter of 2mm , then placed in 80 ℃ drying for 30 minutes, then placed in a resistance furnace for calcination at 1000 ℃ for 40 minutes, after natural cooling, ceramsite was obtained;

[0042] Mix bacterial agent A and ceramsite according to the ratio of 1L:2kg, and culture at 30°C for 6h.

[0043] Then add bacteria agent B, 50g / L sodium a...

Embodiment 3

[0049] Index detection of ceramsite in the present invention.

[0050] Porosity: use the boiling method of GB / T1966-1996 to measure the porosity of the sample;

[0051] Mechanical strength: measured by GBT1965 / 1996 test method for bending strength of porous ceramics.

[0052] The specific indicators are shown in Table 1:

[0053] Table 1

[0054] group Porosity% Mechanical Strength Mpa Density g / ml Example 1 72.8 14.6 1.04 Example 2 70.6 15.3 1.08

[0055] It can be seen that the porosity of the ceramsite carrier of the present invention reaches more than 70%, the pore diameter is between 0.1-10 microns, it is easy to process, the strength is high, the porosity is high, the density is close to water, it is in a suspended state, and the dispersion in waste water is good , which is conducive to the rapid adsorption and treatment of pollutants.

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