A kind of microbial water purifying agent for pufferfish culture water and preparation method thereof
A technology for microbial reagents and aquaculture water, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of decreased production, decreased survival rate, and increased incidence of puffer fish, etc. Achieve the effect of high purification efficiency and easy precipitation
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Embodiment 1
[0024] (1) Preparation of magnetic silicon spheres with surface-modified C8 and C18 alkyl chains:
[0025] (1-1) Synthesis of Fe by hydrothermal method 3 o 4 Magnetic nanoparticles: 1 g of FeCl 3 ·6H 2 O, dissolved in 30ml of ethylene glycol, adding 4 grams of anhydrous sodium acetate, the reaction temperature is 200 ° C, the reaction time is 12 hours, and Fe is generated 3 o 4 magnetic nanoparticles;
[0026] (1-2) the above Fe 3 o 4 Wash the magnetic nanoparticles with water to remove water-soluble impurities, and then disperse them in 10 g of water to obtain dispersion A. Take a centrifuge tube, add 3 g of the above dispersion A, add 5 ml of 2M HCl solution and sonicate for 8 minutes, and then separate and remove the green clear liquid with a magnet. Then disperse with 10ml of water, collect the particles with a magnet, remove the light green clear liquid, disperse with 5ml of 10wt% trisodium citrate solution ultrasonically, let stand for 2h, and disperse with 5ml of...
Embodiment 2
[0033] Substantially the same as in Example 1, the microbial water purifying agent used for pufferfish culture water is obtained, the difference is only that the surface modification agent is different in the step (1-4). In Example 2, 0.3 g of dimethyloctylsilane was used as the surface modifier.
Embodiment 3
[0035] Substantially the same as in Example 1, the microbial water purifying agent used for pufferfish culture water is obtained, the difference is only that the surface modification agent is different in the step (1-4). In Example 3, 0.3 g of octadecyltriethoxysilane was used as the surface modifier.
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