Method for preparing biological carbon immobilized microorganism
A technology of immobilizing microorganisms and biochar, which is applied in the field of environmental engineering, can solve the problems of boric acid toxicity, hindering the mass transfer of beads, etc., and achieve the effect of safe preparation process, high moisture content, and low requirements for conditions and equipment
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[0033] Example 1
[0034] A preparation method of biochar immobilized microorganisms includes the following steps:
[0035] (1) Weigh 0.8g of biomass charcoal prepared at 300°C, add 20ml of bacterial solution that has been cultured for 22 hours; among them, the strain is obtained from Pseudomonas and Sphingomonas as parents using protoplast fusion technology Fusion strain F14, the inoculum amount is 20%;
[0036] (2) Weigh 8g polyvinyl alcohol and 1g sodium alginate into a 100ml Erlenmeyer flask, add 50ml and 20ml distilled water to soak overnight, shake the sodium alginate solution on a shaker; the next day the polyvinyl alcohol solution shakes in a water bath About 3h to dissolve evenly, add sodium alginate solution at room temperature, and rinse the inner wall with 5ml distilled water;
[0037] (3) Mix the bacteria solution added with biomass charcoal with the solution in step (2) to obtain a mixed bacteria solution, and rinse the inner wall with 5ml of distilled water, at this ti...
Example Embodiment
[0042] Example 2
[0043] A preparation method of biochar immobilized microorganisms includes the following steps:
[0044] (1) Weigh 0.8g of biomass charcoal prepared at 500°C, and add 20ml of bacterial solution that has been cultured for 22 hours;
[0045] (2) Weigh 8g polyvinyl alcohol and 1g sodium alginate into a 100ml Erlenmeyer flask, add 50ml and 20ml distilled water to soak overnight, shake the sodium alginate solution on a shaker; shake the polyvinyl alcohol solution in a water bath for 3h the next day About to dissolve evenly, add sodium alginate solution at room temperature, and rinse the inner wall with 5ml distilled water;
[0046] (3) Mix the bacteria solution added with biomass charcoal with the solution in step (2) to obtain a mixed bacteria solution, and rinse the inner wall with 5ml of distilled water, at this time the concentration of polyvinyl alcohol is 8% and the concentration of sodium alginate is 1%;
[0047] (4) Weigh 5g boric acid in 100ml distilled water, wa...
Example Embodiment
[0051] Example 3
[0052] A preparation method of biochar immobilized microorganisms includes the following steps:
[0053] (1) Weigh 0.8g of biomass charcoal prepared at 700°C and add 20ml of bacteria liquid that has been cultured for 2 hours;
[0054] (2) Weigh 8g polyvinyl alcohol and 1g sodium alginate into a 100ml Erlenmeyer flask, add 50ml and 20ml distilled water to soak overnight, shake the sodium alginate solution on a shaker; shake the polyvinyl alcohol solution in a water bath for 3h the next day About to dissolve evenly, add sodium alginate solution at room temperature, and rinse the inner wall with 5ml distilled water;
[0055] (3) Mix the bacteria solution added with biomass charcoal with the solution in step (2) to obtain a mixed bacteria solution, and rinse the inner wall with 5ml of distilled water, at this time the concentration of polyvinyl alcohol is 8% and the concentration of sodium alginate is 1%;
[0056] (4) Weigh 5g boric acid in 100ml distilled water, wait un...
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