A kind of microbial water purifying agent for Chinese soft-shelled turtle breeding 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 problems such as water pollution, production decline, Chinese soft-shelled turtle inadaptability, etc., and achieve easy High precipitation and purification efficiency
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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] Basically the same as in Example 1, the microbial water purifying agent used for soft-shelled soft-shelled turtle culture water was obtained, the only difference being that the surface modification agent was different in the step (1-4). In Example 2, 0.3 g of dimethyloctylsilane was used as the surface modifier.
Embodiment 3
[0035] Basically the same as in Example 1, the microbial water purifying agent used for soft-shelled soft-shelled turtle culture water was obtained, the only difference being that the surface modification agent was different in the step (1-4). In Example 3, 0.3 g of octadecyltriethoxysilane was used as the surface modifier.
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