Preparation method of natural biofilm carrier for surfactant wastewater treatment
A biofilm carrier and surfactant technology, which is applied in the field of preparation of natural biofilm carriers, can solve problems such as microplastic pollution, achieve fast film-hanging speed, high environmental friendliness, and improve the effect of film-hanging efficiency
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[0026] Example 1
[0027] The gelatin was extracted from the leather abandoned edge angle with alkali-free hydrazine, and 5 G gelatin was added to 50 ml of phosphate buffer (pH = 7.5), stirred at 50 ° C for 30 min, resulting in a homogeneous gelatin aqueous solution. 0.2 g of methacrylic anhydride was then added thereto, and the reaction time was added at 50 ° C for 3 h, and 100 ml of phosphate buffer was added to the end of the reaction to terminate the reaction, and the resulting product was used in a constant temperature incubator in 40 ° C. Deionized water dialysis 3d, freeze dry, and prepared a carbon-carbon double bond (C = C) methacryl-acryloyed modified gelatin.
[0028] A 20 mL of a concentration of 2.5% w / v, a metaphylpropylene-modified gelatin solution was added thereto, and 0.03 G photoinitiator was added thereto, and then the mixed solution was placed under -18 ° C under low temperature conditions to freeze 16 h; then the refrigeration system Placed in ultraviolet l...
Example Embodiment
[0029] Example 2
[0030] The gelatin was extracted from the leather abandoned edge angle with alkali-free hydrazine, and 5 G gelatin was added to 50 ml of phosphate buffer (pH = 7.5), stirred at 50 ° C for 30 min, resulting in a homogeneous gelatin aqueous solution. 0.2 g of methacrylic anhydride was then added thereto, and the reaction time was added at 50 ° C for 3 h, and 100 ml of phosphate buffer was added to the end of the reaction to terminate the reaction, and the resulting product was used in a constant temperature incubator in 40 ° C. Deionized water dialysis 3d, freeze dry, and prepared a methacrylated modified gel containing carbon-carbon double bonds (C = C).
[0031] A 20 mL of a concentration of 2.5% w / v, a metaphylpropylene-modified gelatin solution was added thereto, and 0.03 G photoinitiator was added thereto, and then the mixed solution was placed under -18 ° C under low temperature conditions to freeze 16 h; then the refrigeration system Placed under ultravio...
Example Embodiment
[0032] Example 3
[0033] The gelatin was extracted from the leather abandoned edge angle with alkali-free hydrazine, and 5 G gelatin was added to 50 ml of phosphate buffer (pH = 7.5), stirred at 50 ° C for 30 min, resulting in a homogeneous gelatin aqueous solution. 0.4 g of methacrylic anhydride was added thereto, and the reaction time was 3 h under a 50 ° C water bath, and 100 ml of phosphate buffer was added to the end of the reaction, and the resulting product was used in a constant temperature incubator at 40 ° C. Deionized water dialysis 3d, freeze dry, and prepared a methacrylated modified gel containing carbon-carbon double bonds (C = c).
[0034]A 20 mL of a concentration of 2.5% w / v, a metaphylpropylene-modified gelatin solution was added thereto, and 0.03 G photoinitiator was added thereto, and then the mixed solution was placed under -18 ° C under low temperature conditions to freeze 16 h; then the refrigeration system Placed in ultraviolet light, the light intensit...
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