Preparation method of methylthionine chloride adsorbent

A methylene blue and adsorbent technology, applied in chemical instruments and methods, adsorption water/sewage treatment, textile industry wastewater treatment, etc., can solve the problems of limited adsorption capacity and small specific surface area, and achieve improved adsorption capacity, large specific surface area, Environmentally friendly effect

Inactive Publication Date: 2017-12-08
ANHUI XUANTONG IND DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Methylene blue is a common organic dye. The traditional adsorbents for methylene blue are mainly carbon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Take 10 g of almond shells and 10 g of longan shells, mix and pulverize them, pass through an 80-mesh sieve, add 80 ml of 10% hydrochloric acid to ripen, then rinse with water until neutral, and dry at 75°C for 20 hours to obtain a dry product;

[0019] 2) Add deionized water to 5g of graphene oxide to prepare a 10g / L graphene oxide aqueous solution, then add 1g of polyethylene glycol, and ultrasonically disperse for 2 hours at a power of 300W and a temperature of 30°C to obtain graphite oxide olefin dispersion;

[0020] 3) Put the dry matter into the graphene oxide dispersion, stir evenly, then add 2.5g of zinc chloride, put it in the reaction kettle for 8h at a temperature of 130°C, cool it, add 2.5g of glucose, stir evenly, Then freeze-dry at -30°C for 19 hours to obtain an airgel;

[0021] 4) Put the airgel in a tube furnace. Under nitrogen environment, first raise the temperature to 180°C, keep it warm for 2.5 hours, then raise the temperature to 500°C, keep it...

Embodiment 2

[0023] 1) Take 10g of almond shells, 5g of longan shells, and 5g of lychee shells, mix and crush them, and pass through 100 mesh

[0024] Sieve, add 80ml of 10% hydrochloric acid to ripen, then rinse with water until neutral, and dry at 80°C for 12 hours to obtain a dry product;

[0025] 2) Add deionized water to 10g of graphene oxide to prepare a 10g / L graphene oxide aqueous solution, then add 1g of polyethylene glycol, and ultrasonically disperse for 2 hours at a power of 300W and a temperature of 30°C to obtain graphite oxide olefin dispersion;

[0026] 3) Put the dry matter into the graphene oxide dispersion, stir evenly, then add 2g of zinc chloride, put it in the reaction kettle for 8 hours at a temperature of 135°C for hydrothermal reaction, cool, add 2g of glucose, stir evenly, and then Freeze-dry at -30°C for 20 hours to obtain airgel;

[0027] 4) Put the aerogel in a tube furnace. Under nitrogen environment, first raise the temperature to 160°C, keep it warm for 3 ...

Embodiment 3

[0029] 1) Take 10 g of litchi shells and 10 g of longan shells, mix and pulverize them, pass through an 80-mesh sieve, add 100 ml of 10% hydrochloric acid to ripen, then rinse with water until neutral, and dry at 70°C for 24 hours to obtain a dry product;

[0030] 2) Add deionized water to 8g of graphene oxide to prepare an 8g / L graphene oxide aqueous solution, then add 1g of polyethylene glycol, and ultrasonically disperse for 3 hours at a power of 300W and a temperature of 30°C to obtain graphite oxide olefin dispersion;

[0031] 3) Put the dry matter into the graphene oxide dispersion, stir evenly, then add 4g of zinc chloride, put it in the reaction kettle for 8 hours at a temperature of 130°C for hydrothermal reaction, cool, add 4g of glucose, stir evenly, and then Freeze-dry at -30°C for 19 hours to obtain airgel;

[0032] 4) Put the airgel in a tube furnace, and in nitrogen environment, first raise the temperature to 140°C, keep it warm for 3 hours, then raise the temp...

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Abstract

The invention belongs to the technical field of wastewater treatment, and concretely relates to a preparation method of a methylthionine chloride adsorbent. The preparation method comprises the following steps of smashing shells, sieving, adding hydrochloric acid for curing, then washing with water to neutral, and drying to obtain a drying material for standby use; feeding the drying material into graphene oxide dispersion liquid, uniformly stirring, then adding zinc chloride, carrying out hydrothermal reaction, cooling, adding glucose, uniformly stirring, and then freeze drying; carrying out ladder temperature heating under a nitrogen environment, and then cooling to obtain the adsorbent. According to the adsorbent provided by the invention, raw materials and a preparation process are friendly to the environment, and the prepared adsorbent has stable performance, large specific surface area, and high removal rate on methylthionine chloride in printing and dyeing wastewater.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a method for preparing an adsorbent for treating methylene blue in printing and dyeing wastewater. Background technique [0002] Printing and dyeing wastewater is wastewater discharged from printing and dyeing factories that mainly process cotton, hemp, chemical fibers and their blended products. Textile printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutants, high alkalinity, and large changes in water quality. It is difficult to treat. One of industrial wastewater, the wastewater contains dyes, pastes, additives, oils, acids and bases, fiber impurities, sand substances, inorganic salts, etc. Methylene blue is a common organic dye. The traditional adsorbents for methylene blue are mainly carbon materials, but their specific surface area is relatively small, which limits their adsorption capacity. ...

Claims

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Application Information

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IPC IPC(8): B01J20/00B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30C02F101/36C02F101/38C02F103/30
Inventor 王丽李彦
Owner ANHUI XUANTONG IND DESIGN CO LTD
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