Process for preparing adsorbent by modification through kidney bean vines
A kidney bean vine and adsorbent technology, which is applied in the field of adsorbent materials, can solve the problems of secondary pollution, large amount of reagents and high processing cost, and achieves the effects of simple manufacturing method, low cost and environmental friendliness.
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Embodiment 1
[0018] Take an appropriate amount of kidney bean vines, wash the dust, chop them up, wash them with distilled water, dry them at 80°C until they reach a constant weight, grind them into powder, pass through a 60-mesh sieve, collect the powder, and weigh the obtained powder Soak 50g in deionized water, add 2mL each of the activated 0.01mol / L amylase solution and protease solution, react at 35-50°C for 1 hour, then add 10mL of 0.05mol / L KOH solution, and react for 50 minutes , then use H 2 SO 4 Neutralize the solution, filter the neutralized liquid, and then dry it; mix the dried powder and urea in a mass ratio of 1:1, then re-immerse in deionized water, react at 50°C for 6 hours, filter, Then wash it with deionized water and dry it in an electric heating constant temperature drying oven at 50°C to obtain a heavy metal adsorbent product.
Embodiment 2
[0020] Take an appropriate amount of kidney bean vines, wash the dust, chop them up, wash them with distilled water, dry them at 80°C until they reach a constant weight, grind them into powder, pass through a 60-mesh sieve, collect the powder, and weigh the obtained powder Soak 50g in deionized water, add 2mL each of the activated 0.05mol / L amylase solution and protease solution, react at 35-50°C for 2 hours, then add 10mL of 0.1mol / L KOH solution, and react for 50 minutes , then use H 2 SO 4 Solution neutralization. Filter the neutralized liquid, and then dry it; mix the dried powder and urea in a mass ratio of 1:1, then re-immerse in deionized water, react at 50°C for 8 hours, filter, and then use deionized After the water is cleaned, it is put into an electric heating constant temperature drying oven at 50° C. for drying to obtain a heavy metal adsorbent product.
Embodiment 3
[0022] Take an appropriate amount of kidney bean vine, wash the dust, chop it, wash it with distilled water, dry it at 80°C until it reaches a constant weight, grind the dried product into powder, pass it through a 60-mesh sieve, collect the powder, and add an appropriate amount of deionized water, add 2 mL each of the activated 0.05 mol / L amylase solution and protease solution, react at 50 ° C for 2 hours, then add 5 L of 0.1 mol / L KOH solution, react for 1 hour, and then use H 2 SO 4 Neutralize the solution, filter the neutralized liquid with a plate-and-frame compressor, and then dry it; mix the dried powder and urea at a mass ratio of 1:1, put it into a 3-ton sanitary tank, and inject it into a deionized tank water, kept at 50°C for 10 hours, filtered, washed with deionized water, and then dried at 50°C to obtain a heavy metal adsorbent product.
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