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Preparation method of modified mycelium adsorbent and adsorption method for anionic pollutants

A technology of adsorbent and mycelium, which is applied in the preparation of modified mycelium adsorbent and the field of adsorption of anionic pollutants, which can solve the problems of unsatisfactory adsorption effect, low specific surface area of ​​original mycelium, and low density of functional groups. , to achieve the effects of wide sources of mycelium, realization of resource utilization, and simple preparation method

Inactive Publication Date: 2018-06-19
HUATIAN ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are studies using waste mycelium as an adsorbent. However, the specific surface area and functional group density of the original mycelium are low, and its adsorption effect is not ideal.

Method used

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  • Preparation method of modified mycelium adsorbent and adsorption method for anionic pollutants
  • Preparation method of modified mycelium adsorbent and adsorption method for anionic pollutants
  • Preparation method of modified mycelium adsorbent and adsorption method for anionic pollutants

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Effect test

Embodiment 1

[0025] This embodiment provides a method for preparing a mycelium modified adsorbent, which is as follows: expand the cultivation in the laboratory to obtain Aspergillus versicolor mycelium balls, rinse off the impurities on the surface with clean water, crush and sieve after freeze-drying, pass through 60 Mesh sieve to obtain mycelium powder, weigh 2g of mycelium powder, mix mycelium powder with 100mL 1.5% cetyltrimethylammonium bromide solution, shake at 30°C and 150r / min for 24h, Filter and wash with copious amounts of deionized water until AgNO 3 The solution does not detect Br — , collected, freeze-dried and ground through a 60-mesh sieve to obtain a modified adsorbent. The specific surface area of ​​mycelium powder before and after modification is 1.50, 2.03m 2 / g, the SEM pictures of mycelium powder before and after modification are shown in the attached figure 2 .

Embodiment 2

[0027] This embodiment provides a method for preparing a mycelium modified adsorbent, specifically: the yeast collected from a brewery is rinsed with clean water to remove impurities on the surface, crushed and sieved after freeze-drying, and passed through a 60-mesh sieve. Obtain mycelium powder; weigh 1g of mycelium powder into 150mL 1.0% cetyltrimethylammonium bromide solution, shake at 30°C 150r / min for 24h, filter to obtain mycelium powder, and use deionized Wash the filtered mycelium powder with water until AgNO 3 No Br- was detected in the solution, it was collected, freeze-dried, and ground through a 60-mesh sieve to obtain a modified adsorbent.

Embodiment 3

[0029] This embodiment provides a method for preparing a mycelium modified adsorbent, specifically: washing the collected Aspergillus versicolor mycelia balls with clean water to remove impurities on the surface, crushing and sieving after freeze-drying, and passing through a 60-mesh sieve , to obtain mycelium powder, weigh 1g of mycelium powder, mix the weighed mycelium powder with 100mL 1.5% cetyltrimethylammonium bromide solution, and mix at a temperature of 30°C with a speed of 150r / min Stir at high speed for 24h, filter, and wash with plenty of deionized water until AgNO 3 No Br- was detected in the solution, it was collected, freeze-dried and ground through a 60-mesh sieve to obtain a modified adsorbent.

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Abstract

The invention discloses a preparation method of a modified mycelium adsorbent. The method comprises the following steps: (1) preparing mycelium powder by washing a mycelium, heating the mycelium for killing the mycelium, freeze-drying, grinding and sieving in turn; (2) mixing the obtained mycelium powder with a cetyl trimethyl ammonium bromide solution according to a predetermined ratio for modification treatment; (3) washing the modified mycelium powder, freeze-drying the washed mycelium powder, grinding, and sieving with a 60-mesh screen to obtain the modified mycelium adsorbent. The concentration of the cetyl trimethyl ammonium bromide solution is 0.5% to 2%. A surfactant can enhance functional groups, increase specific surface area, and increase adsorption capacity. The preparation method is simple, has no pollution to the environment, has a wide source of the mycelium, and realizes the resource utilization of solid waste.

Description

technical field [0001] The invention belongs to the technical field of water treatment adsorption, and in particular relates to a preparation method of a modified mycelium adsorbent and an adsorption method for anionic pollutants. Background technique [0002] The treatment methods of printing and dyeing wastewater mainly include chemical methods, physical methods and biological methods. Due to the complex composition of wastewater and the structural characteristics of dye molecules, which have good stability, traditional biodegradation is difficult to effectively treat printing and dyeing wastewater. Chemical methods are difficult to apply on a large scale due to high processing costs, complicated operations, and difficult follow-up processing. Adsorption method is the most commonly used method in water treatment technology at present. Adsorption method has the advantages of simple operation and high treatment efficiency. Among them, adsorbent is the core of adsorption meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/22B01J20/30C02F1/28C02F101/22C02F101/30C02F101/34C02F101/38
CPCB01J20/22B01J20/24C02F1/28C02F2101/22C02F2101/308C02F2101/34C02F2101/38
Inventor 黄建程寒飞詹茂华李明慧张红朱红生
Owner HUATIAN ENG & TECH CORP MCC
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