A preparation method of photocatalytic immobilized nitrogen and phosphorus removal particles
A technology of nitrogen and phosphorus removal and photocatalysis, applied in biochemical equipment and methods, immobilized enzymes, immobilized on or in inorganic carriers, etc., can solve the problems of mass production, weakened immobilization effect, and loss of curing agent and other issues, to achieve the effect of more recycling, easy recycling, and simple operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] 1) Weigh 10 g of naturally air-dried marine farm sediment and inoculate it into 100 mL of high-salt nitrogen-enriched liquid medium (the formula is: 2.5 g / L sodium citrate, 0.5 g / L dipotassium hydrogen phosphate, 0.5 g / L potassium dihydrogen phosphate, 0.1 g / L magnesium sulfate, 25 g / L sodium chloride, 1 g / L ammonium chloride), control the temperature with a constant temperature shaking shaker After culturing at 35 °C for 48 h at a speed of 100 r / min, 20 mL of the mixture was taken out and inoculated into 80 mL of high-salt phosphorus-rich liquid medium sterilized by autoclaving, and 0.25 g of ammonium chloride was added, and then used Control the temperature on a constant temperature shaking shaker at 35 °C, and culture at a speed of 100 r / min for another 48 h, take out 10 mL of the mixture, inoculate it into 90 mL of high-salt phosphorus-rich liquid medium sterilized by autoclaving, and add 0.5 g ammonium chloride, and then cultivated for 48 h, through three generati...
Embodiment 2
[0036] 1) Weigh 10 g of seawater farm sediment after natural air-drying, and inoculate it into 100 mL of high-salt phosphorus-rich liquid medium (the formula is: 2.5 g / L sodium acetate, 0.125 g / L phosphoric acid dipotassium hydrogen dipotassium, 0.25 g / L magnesium sulfate, 0.1 g / L calcium chloride, 1 g / L ammonium sulfate, 25 g / L sodium chloride), control the temperature at 35 ℃ with a constant temperature shaking shaker, and set the temperature at 120 r / After culturing for 48 h at a rotational speed of 1 min, take out 20 mL of the mixed liquid, inoculate it into 80 mL of high-salt phosphorus-rich liquid medium that has been sterilized by high pressure, and add 0.05 g of dipotassium hydrogen phosphate, and then control the temperature with a constant temperature shaking shaker. After culturing for another 48 h at 35 °C at a speed of 120 r / min, 10 mL of the mixed solution was taken out and inoculated into 90 mL of high-salt phosphorus-rich liquid medium sterilized by autoclaving...
Embodiment 3
[0045] 1) Mix the nitrogen-removing bacteria powder in Example 1 and the phosphorus-removing bacteria powder in Example 2 according to the mass ratio of 1:1, 2:1 and 1:2 to prepare a mixed bacteria powder and mark it as H1, H2 and H3;
[0046] 2) Mix ethanol, acetic acid and tetrabutyl titanate at a ratio of 90:4:6 (volume ratio) to form solution A, and mix ethanol, 1wt% urea and water at a ratio (volume ratio) of 90:4:6 to form solution B middle;
[0047] 3) Add the above-mentioned liquid A to liquid B according to the volume ratio of 5:1, slowly drop liquid B into liquid A at a rate of 2 drops / second, and keep the stirring speed of the magnetic rotor at 800 r / min, at 30 ℃ Let it age until it forms a gel, dry it at 105 °C for 5 h, and then calcinate it at 600 °C for 2 h in a muffle furnace, and obtain nitrogen-doped nano-sized titanium dioxide by grinding
[0048] 4) Weigh 1.5 g of sodium alginate and 10 g of polyvinyl alcohol, add water to 100 g, heat in a water bath at 95...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More