Biochar prepared from banana peel, preparation method and application thereof

A technology of biochar and banana peel, applied in the field of agricultural chemistry, can solve the problems of environmental pollution, negative impact of production, waste of resources, etc., and achieve the effect of large specific surface area, strong adsorption capacity, and full utilization of resources
CN106010601AActive Publication Date: 2016-10-12HUNAN AGRICULTURAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN AGRICULTURAL UNIV
Publication Date
2016-10-12

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Abstract

The invention discloses a method for preparation of biochar from banana peel. The method comprises the steps of: (1) crushing banana peel, then mixing the crushed banana peel with an aqueous solution of an activator, and performing standing; then carrying out washing and drying to obtain a biochar precursor, wherein the activator is at least one of alkali metal hydroxide, lewis acid and peroxide; (2) mixing the biochar precursor with an acid solution, then carrying out hydrothermal charring reaction at 180DEG C-260DEG C, and at the end of the hydrothermal charring reaction, carrying out washing and drying to obtain the biochar. In addition, the invention also comprises the biochar prepared by the method and application of the biochar to adsorption of heavy metals. The method provided by the invention utilizes agricultural production waste to prepare a biochar adsorbent by simple and rapid hydrothermal charring method, turns waste into treasure, makes full use of resources, reduces environmental pollution, has good economic benefits, develops new technology, and is beneficial to industrial production.
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Description

technical field

[0001] The invention relates to the field of agricultural chemistry, and particularly designs a method for preparing biochar from banana peels, which is applied to the adsorption of heavy metal ions in water bodies and soil environments. Background technique

[0002] Since the beginning of my country's industrialization, heavy metals have continuously eroded cultivated land, and the area of ​​cultivated land polluted by heavy metals has doubled, which has become a key problem that seriously threatens my country's food security and development. Coupled with the continuous advancement of China's modernization process, people are paying more and more attention to food safety. It is urgent to solve the problem of food safety in order to enrich the country, stabilize social order, and achieve sustainable development.

[0003] Biochar is a kind of charcoal with extremely high carbon content formed by high-temperature pyrolysis and carbonization of biomass (crop was...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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