Method for preparing ligustrum lucidum biological activated charcoal

Abstract

The invention discloses a method for preparing ligustrum lucidum biological activated charcoal. According to the method, three factors, i.e., dipping ratio, activation temperature and activation timeof an independent variable, i.e., zinc chloride, yield of a dependent variable, i.e., activated charcoal and a sulfur dioxide adsorption mathematical model are subjected to regressive analysis by using experimental design software Design-Expert, and an obtained mathematical model is good in fitting property and is accurate and reliable; an experimental result is predicted by replacing an experimental real point with the model, and optimal processing conditions for preparing the activated charcoal through burnetizing ligustrum lucidum are predicted; meanwhile, by adopting a special impurity washing mode, the defect of the conventional activated charcoal production processes that the activated charcoal is acidified due to acid pickling is overcome, and active metal ingredients in the activated charcoal are reserved; and the prepared activated charcoal is particularly applicable to adsorption of acid pickling industrial waste gases, the efficiency of adsorption is high, the waste gas treatment cost is reduced, and then, the application of the activated charcoal in the aspect of treatment of the industrial waste gases is extended.

Description

Technical field [0001] The invention belongs to the field of activated carbon preparation, and specifically relates to a method for preparing Ligustrum lucidum biological activated carbon through zinc chloride impregnation. Background technique [0002] Ligustrum lucidum, sugar cane, reed bamboo, coconut husk, etc. can all be processed to prepare activated carbon. Ligustrum lucidum is widely grown in southwestern, southern China and areas south of the Yangtze River. Shaanxi and Gansu also have large-scale cultivation. , Indonesia and other countries also have cultivation. Under normal circumstances, Ligustrum lucidum, the fruit produced by Ligustrum lucidum, is an important medicinal material in traditional Chinese medicine treatment, used to treat dizziness, early white hair and other diseases. Ligustrum lucidum contains a lot of substances, such as oleanolic acid, mannic acid, and gluconic acid. Ligustrum lucidum, as a kind of medicinal material, has the effects of strengthen...

AI Technical Summary

Problems solved by technology

In the production process of activated carbon, the raw materials will bring a large amount of metal oxides and inorganic salts, which are the main components of activated carbon ash, which can reduce the purity and performance of activated carbon, so pickling and impurity removal are usually carried out in the conventional activated carbon production process, but The acid-washed activated carbon is usually acidic, and most of the industrial waste gas is usually acidic, so the existing activated carbon has low adsorption efficiency in the adsorption of industrial waste gas, which increases the cost of waste gas treatment, which in turn affects the role of activated carbon in the treatment of industrial waste gas. application

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