Preparation method and application of co-pyrolyzed biochar of pig bones and bamboo wood

A co-pyrolysis and biochar technology, applied in chemical instruments and methods, water pollutants, alkali metal compounds, etc., can solve the problems of mixed wastewater treatment without co-pyrolysis biochar, and achieve enhanced physical adsorption effect, repeatable The effect of high rate and easy availability of raw materials
CN109908865AActive Publication Date: 2019-06-21WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2019-06-21

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Abstract

The invention relates to the technical field of biochar, in particular to a preparation method and application of co-pyrolyzed biochar of pig bones and bamboo wood. The preparation method comprises the following steps: (1) impurity removal: stirring and scalding the pig bones and the bamboo wood respectively in water of a certain temperature to remove impurities; (2) drying: drying the pig bones and bamboo wood after the impurities are removed at a certain temperature; (3) pulverizing: pulverizing the dried pork bones and bamboo wood respectively to obtain pork bone powder and bamboo powder; (4) co-pyrolysis: mixing the prepared pork bone powder with the bamboo powder in a certain ratio, then co-pyrolyzing at a certain temperature, and then cooling to room temperature to obtain the co-pyrolyzed biochar. The preparation method provided by the invention is simple, the raw materials are easy to obtain, the method is high in stability, the repeatability is high, the industrial production is facilitated, and the prepared co-pyrolyzed biochar of the pig bones and the bamboo wood combines the advantages of bone charcoal and bamboo charcoal, so that the effect of effectively treating mixedwastewater can be realized, and the effect is higher than that of single bone charcoal or bamboo charcoal.
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Description

technical field

[0001] The invention relates to the technical field of biochar, in particular to a method for preparing biochar by co-pyrolyzing pig bones and bamboo and its application. Background technique

[0002] Biochar (Biochar is a carbonaceous material produced by pyrolysis of biomass under complete or partial anoxic conditions. Biochar is rich in carbon and has a developed pore structure, which brings it a large specific surface area and ion exchange Due to its high physical and chemical properties, it is considered to be an efficient adsorption material.

[0003] Bone black is a kind of amorphous carbon, containing 7%-11% carbon, about 80% calcium phosphate and other inorganic salts. It is produced by carbonization in multiple processes such as sorting. Hydroxyapatite extracted from bone char can remove heavy metals very effectively. Its advantage lies in its ability to eliminate the negative effects of hardness in water, thereby eliminating heavy metals. With ...

Claims

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