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Compound adsorbent based on hippophae rhamnoides linn branches and trunks and preparation method of compound adsorbent

A composite adsorption, sea buckthorn technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of resource waste, ecological environment damage, etc., to extend the industrial chain, reduce residues, and learn from effect of action

Active Publication Date: 2015-02-25
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process not only caused damage to the ecological environment, but also caused a lot of waste of resources.

Method used

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  • Compound adsorbent based on hippophae rhamnoides linn branches and trunks and preparation method of compound adsorbent
  • Compound adsorbent based on hippophae rhamnoides linn branches and trunks and preparation method of compound adsorbent
  • Compound adsorbent based on hippophae rhamnoides linn branches and trunks and preparation method of compound adsorbent

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Experimental program
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Effect test

Embodiment 1

[0043] The preparation of embodiment 1 composite adsorbent of the present invention

[0044] Seabuckthorn branches are soaked in water for 24 hours, dried, crushed, and passed through a 80-mesh sieve. Weigh 10g of sieved seabuckthorn, add 10g of ZnCl according to the ratio of 1:1 2 Activated for 24h. Wash three times with distilled water, centrifuge, soak the obtained precipitate in 0.5mol·L -1 FeCl 3 solution, after 12 hours, take the precipitate and dry it in an oven at 80°C for 4 hours. The dried precipitate was placed in a single-tube carbonization furnace under N 2 Carbonization at 500°C for 1h under ambient conditions. Cool to room temperature, grind for later use, and obtain the composite adsorbent of the present invention.

Embodiment 2

[0045] Embodiment 2 Preparation of composite adsorbent of the present invention

[0046] Seabuckthorn branches are soaked in water for 24 hours, dried, crushed, and passed through a 80-mesh sieve. Weigh 10g of sieved seabuckthorn, add 10g of ZnCl according to the ratio of 1:1 2 Activated for 24h. Wash three times with distilled water, centrifuge, soak the obtained precipitate in 0.5mol·L -1 FeCl 3 solution, after 12 hours, take the precipitate and dry it in an oven at 80°C for 4 hours. The dried precipitate was placed in a single-tube carbonization furnace under N 2 Carbonization at 300°C for 1 hour under ambient conditions. Cool to room temperature, grind for later use, and obtain the composite adsorbent of the present invention.

Embodiment 3

[0047] The detection of embodiment 3 composite adsorbent of the present invention

[0048] 1. SEM and EDS

[0049] SEM and EDS of seabuckthorn branch charcoal, composite adsorbent and its surface selected area as figure 1 shown.

[0050] figure 1 (a) is the SEM image of seabuckthorn branch charcoal. It can be seen from the figure that seabuckthorn branch charcoal is an irregular short rod-shaped structure with a diameter of about 7-10 μm and a rough surface. This is due to the concave-convex structure of the epidermis of seabuckthorn branches, which is very similar to the structure of biochar reported in the literature with cellulose and lignin as the main components. [6，8] . Figures (b) and (c) are SEM images of composite adsorbent products. From Figure (b), it can be clearly observed that compared with the original rough and rough surface of seabuckthorn branch charcoal, a large amount of nano-Fe 3 o 4 Particles were loaded on the outer surface of seabuckthorn branch...

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Abstract

The invention relates to a compound adsorbent based on hippophae rhamnoides linn branches and trunks. The compound adsorbent is produced by the following steps: preparing hippophae rhamnoides linn charcoal by the hippophae rhamnoides linn branches and trunks, and loading nano Fe3O4 grains. The invention further provides a preparation method of the compound adsorbent. The national resource quantity of the hippophae rhamnoides linn branches and trunks is great; and the compound adsorbent is prepared by taking waste biological resources of the hippophae rhamnoides linn branches and trunks as raw materials so that the industrial chain of utilizing the hippophae rhamnoides linn branches and trunks is effectively lengthened. The obtained compound adsorbent can be used for treating doxycycline organic pollutant wastewater and can be regenerated.

Description

technical field [0001] The invention designs a composite adsorbent based on seabuckthorn branches, a preparation method of the composite adsorbent and a method for removing doxycycline residue. Background technique [0002] Antibiotics are not only widely effective drugs for treating animal and human bacterial diseases, but also effective drugs for promoting animal growth [1] . Among the wide variety of antibiotics, doxycycline (also known as deoxyoxytetracycline hydrochloride) is a typical representative of tetracycline antibiotics, mainly used to treat respiratory tract, urinary tract and biliary tract infections caused by sensitive bacteria. research shows [2，3] , during the production and application of doxycycline, a small amount of doxycycline remaining in the environment has brought great safety risks to aquatic organisms, animals and human life. In addition, due to the inhibitory effect of doxycycline on microbial growth and reproduction, doxycycline wastewater ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28
CPCB01J20/0229B01J20/06B01J20/20B01J2220/42B01J2220/4806B01J2220/4825B01J2220/485C02F1/281C02F1/283C02F2101/30C02F2103/343
Inventor 白波张霞索有瑞王洪伦
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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