Wine brewing waste liquid decolorizing agent and preparation method thereof
A technology of decolorizing agent and waste liquid, which is applied in the field of decolorizing agent, can solve the problems such as difficult direct repeated use, ineffective removal of dark-colored substances, and difficulty in degrading dark-colored impurities
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[0014] The invention provides a preparation method of wine brewing waste liquid decolorant, comprising:
[0015] 1) placing the loofah in an alkaline solution for heat treatment, then washing, drying and pulverizing to obtain loofah powder;
[0016] 2) Disperse butyl titanate, zinc salt, acetylacetone, and thiourea in absolute ethanol, then add mineral acid, water, and loofah powder and stir, and then stand still to obtain a sol;
[0017] 3) Calcining the sol to obtain a decolorizing agent for brewing waste liquor;
[0018] Among them, the alkaline solution is composed of alkaline compounds, water and alcohol.
[0019] In step 1) of the above-mentioned preparation method, the consumption of each material can be selected in a wide range, but in order to further improve the decolorization effect of the brewing waste liquid decolorizer, in step 1), the consumption ratio of loofah and alkaline solution is for 5:20-40.
[0020] In the above preparation method, the amount of each...
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