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Modified Citrus reticulata cv. Suavissima peel biochar material and preparation method and application thereof

A technology of biochar and citrus, applied in chemical instruments and methods, water pollutants, alkali metal compounds, etc., can solve the problems of high cost, high energy consumption, secondary pollution, etc.

Pending Publication Date: 2019-06-11
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods have advantages and disadvantages, and also have limitations, such as: secondary pollution, high cost, large energy consumption, etc.

Method used

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  • Modified Citrus reticulata cv. Suavissima peel biochar material and preparation method and application thereof
  • Modified Citrus reticulata cv. Suavissima peel biochar material and preparation method and application thereof
  • Modified Citrus reticulata cv. Suavissima peel biochar material and preparation method and application thereof

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Embodiment 1

[0060] A preparation method of modified Ou orange peel biochar material, the specific steps are as follows:

[0061] (1) Take the citrus peel, wash it repeatedly with tap water to remove surface impurities, then wash it repeatedly with deionized water until neutral, dry it outdoors, transfer it to an oven, and dry it at 60-70 degrees Celsius; The dried Ou mandarin peel is crushed into powder, passed through a 150-mesh sieve, and then dried after sieving to obtain dried Ou mandarin peel powder;

[0062] (2) Put 10g of Ou orange peel powder in 2mol / L 100ml of FeCl 3 In the solution, magnetically heat and stir at 70°C for 35 minutes to carry out magnetic modification. After the modification is completed, the solid phase is separated from the solution by suction filtration, and then placed in a 100°C drying oven until the water is dried to obtain Magnetically modified citrus peel biomass;

[0063] (3) Put the magnetically modified citrus peel biomass in a muffle furnace for pyro...

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Abstract

The invention discloses a modified Citrus reticulata cv. Suavissima peel biochar material and a preparation method and application thereof. The preparation method comprises: immersing Citrus reticulata cv. Suavissima peel powder in an aqueous solution of FeCl3, continuously conducting heating and stirring, performing magnetic modification, after the modification, separating a solid phase from thesolution and conducting drying to obtain magnetically modified Citrus reticulata cv. Suavissima peel biomass; and putting the magnetically modified Citrus reticulata cv. Suavissima peel biomass in anenvironment of 650-750 DEG C for pyrolysis to obtain the modified Citrus reticulata cv. Suavissima peel biochar material. The biochar material of the invention has a large specific surface area, totalpore volume, micropore volume and average pore diameter, and iron can be uniformly distributed on the biochar. In a static experiment, the removal rate is as high as 99.74%, and the maximum adsorption amount is 48.1 mg / g; and in a dynamic experiment, when the chromium concentration reaches 742.5 mg / L, the solution pH is 1.0, and in the first 40 min when the flow rate is 1 mL / min, the removal rateis as high as 99.91%, and the maximum adsorption amount is as high as 83.3 mg / g.

Description

technical field [0001] The invention relates to the technical field of agricultural resource utilization, in particular to a modified Ou mandarin peel biochar material and a preparation method and application thereof. Background technique [0002] In recent years, with the rapid development of society, the social and economic benefits have been greatly improved, and the industrialization process has been accelerated, and the resulting pollution problems have also emerged one after another; among them, the production, manufacturing, processing and other industries of heavy metals have gradually increased and become more and more serious; due to heavy metals The environmental toxicity, abundance and persistence of pollution have made metal pollution in the aquatic environment a global concern. [0003] Heavy metals originally refer to metals with a specific gravity greater than 5 (metals with a density greater than 4.5 grams per cubic centimeter), including gold, silver, coppe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28C02F1/28B01J20/30C02F101/22C02F103/16
Inventor 王奇景盛乐王传花柯强赵敏于恒国戴传军刘仁兰李军贝克金展黄先锋
Owner WENZHOU UNIVERSITY
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