Abstract
Activated carbons were prepared with Baijiu vinasse in this study. The response surface method was used to optimize the process parameters of NaOH solution boiling treatment to extract the protein in Baijiu vinasse. Ascertaining the optimum conditions that NaOH solution concentration is 2.5mol/L, treating time is 2hours and solid-liquid ratio is 1:4. So the protein retention rate is 1.116%.The methods of ZnCl2 chemical activation and high temperature calcination activation were used to prepare activated carbons. Under the optimum conditions of ZnCl2 concentration 50%, solid-liquid ratio 1:2, calcination time 120min, calcination temperature 600°C, the methylene blue adsorption reaches to 208mg/g.
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