Rye straw adsorbing material and preparation method thereof
A technology for rye straw and adsorption material, which is applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of low utilization efficiency, environmental pollution, waste of resources, etc., and achieves simple manufacturing method, environmental protection Friendly, low-cost effects
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Embodiment 1
[0020] Choose mature and long rye straws, soak them in tap water and wash them to remove dirt and dust, then wash them with distilled water, and dry them to constant weight at 80°C; grind the dried rye straws into powder and choose to disperse Pass through a 60-mesh sieve and collect the powder; weigh 50g of the obtained powder and soak it in deionized water, add 2mL each of the activated 0.01mol / L amylase solution and protease solution, and react at 35-50℃ for 1 hour. Then add 10mL of 0.05mol / L KOH solution, react for 50 minutes, and then use H 2 SO 4 The solution is neutralized, the neutralized liquid is filtered, and then dried; the dried powder and urea are mixed uniformly at a mass ratio of 1:1, then re-soaked in deionized water, reacted at 50°C for 6 hours, filtered, After that, it was washed with deionized water three times to remove the remaining ionic liquid, and then washed with 95% alcohol for two times. After washing, it was placed in an electric heating constant tem...
Embodiment 2
[0022] Choose mature and long rye straws, soak them in tap water and wash them to remove dirt and dust, then wash them with distilled water, and dry them to constant weight at 80°C; grind the dried rye straws into powder and choose to disperse Pass through a 60-mesh sieve and collect the powder; weigh 50g of the obtained powder and soak in deionized water, add 2mL each of the activated 0.05mol / L amylase solution and protease solution, and react at 35-50℃ for 2 hours. Then add 10mL of 0.1mol / L KOH solution, react for 50 minutes, and then use H 2 SO 4 The solution is neutralized. Filter the neutralized liquid, and then dry; mix the dried powder and urea at a mass ratio of 1:1, then soak it in deionized water, react at 50℃ for 8 hours, filter, and then deionize Wash with water 3 times to remove the residual ionic liquid, and then wash with 95% alcohol 2 times. After washing, it is placed in an electric heating constant temperature drying oven at 50°C and dried to obtain the rye st...
Embodiment 3
[0024] Choose mature and long rye straws, soak them in tap water and wash them to remove dirt and dust, then wash them with distilled water, and dry them to constant weight at 80°C; grind the dried rye straws into powder and choose to disperse Go through a 60-mesh sieve and collect the powder; weigh 100kg of the obtained powder into a 3 ton sanitary storage tank, and pour an appropriate amount of deionized water into the tank, add 2mL each of the activated 0.05mol / L amylase solution and protease solution , React for 2 hours at 50℃, then add 5L of 0.1mol / L KOH solution, react for 1 hour, then use H 2 SO 4 The solution is neutralized, the neutralized liquid is filtered with a plate and frame compressor, and then dried; the dried powder and urea are mixed uniformly at a mass ratio of 1:1, and then refilled into a 3 tons sanitary tank, and injected with deionization Water, keep at 50℃ and react for 8 hours, filter, wash with deionized water 4 times to remove residual ionic liquid, a...
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