Immobilized microorganism agent and preparation method and application thereof
A technology for immobilizing microorganisms and microbial bacteria, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of poor removal ability of anion pollutants
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[0026] The embodiment of the present invention also provides a preparation method of the above-mentioned immobilized microbial bacterial agent, comprising the following steps:
[0027] 1), the hydrotalcite is roasted to obtain roasted hydrotalcite;
[0028] 2), mixing the calcined hydrotalcite, the carrier material, the binder and the microorganisms uniformly together to obtain raw materials;
[0029] 3) The raw materials are granulated and dried after the treatment to obtain the immobilized microbial agent.
[0030] Wherein, the calcining temperature of the hydrotalcite is 300° C. to 900° C., preferably 300° C. to 600° C., and the calcining time is 2 hours to 12 hours. The mass ratio of the calcined hydrotalcite to the carrier material is preferably 0.05-0.2, more preferably 0.1-0.2. The hydrotalcites used in the embodiments of the present invention can be purchased from sales channels. Considering the cost, the technical solutions of the embodiments of the present inventi...
Embodiment 1
[0040] 1) Calcining industrial grade magnesium aluminum hydrotalcite in a muffle furnace at 300°C for 12 hours to obtain calcined hydrotalcite;
[0041] 2), after mixing 2g of calcined hydrotalcite, 20g of epoxy resin, and 20g of 200-mesh activated carbon, stir evenly; then add 20mL of phosphorus-removing bacteria solution, continue stirring evenly, and obtain raw materials;
[0042] 3) The raw material is subjected to granulation treatment, and after the treatment is completed, it is dried under natural conditions to obtain an immobilized microbial bacterial agent, and the particle diameter of the microbial agent is 1 mm to 5 mm.
[0043] Take 500mL of phosphorus-containing wastewater (phosphorus mainly exists in the form of phosphate), adjust the pH of the wastewater to 6-7, place it in a reactor, and add 1.5g of the above-mentioned immobilized microbial agent into the reactor to Stir at a speed of 135 rpm, maintain the dissolved oxygen at 2mg / L, react at 25°C for 24 hours, ...
Embodiment 2
[0046] 1) Calcined industrial grade calcium aluminum hydrotalcite in a muffle furnace at 600°C for 5 hours to obtain calcined hydrotalcite;
[0047] 2), 2g of calcined hydrotalcite, 58g of cement, 20g of 200-mesh bentonite and 20mL of phosphorus-removing bacteria solution were uniformly mixed together to obtain raw materials;
[0048] 3) The raw material is subjected to granulation treatment, and after the treatment is completed, it is dried under natural conditions to obtain an immobilized microbial bacterial agent, and the particle diameter of the microbial agent is 5 mm to 8 mm.
[0049] Take 500mL of phosphorus-containing wastewater (phosphorus mainly exists in the form of phosphate), adjust the pH of the wastewater to 6-7, place it in a reactor, and add 1.5g of the above-mentioned immobilized microbial agent into the reactor to Stir at a speed of 135 rpm, maintain the dissolved oxygen at 2mg / L, react at 25°C for 24 hours, and take samples to detect the phosphorus concentr...
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