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Method for processing aniline-blue-containing pollution wastewater by using cultivation material of harvested pleurotus eryngii

A technology for the treatment of cultivation materials and aniline blue, which is applied in the fields of water pollutants, chemical instruments and methods, and wastewater treatment in the textile industry. It can solve the problems that the cultivation waste cannot be recycled and the processing cost is high, and achieve waste reuse and purification. The effect of the environment and good development prospects

Inactive Publication Date: 2015-04-08
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pleurotus eryngii hyphae grow on it, which can be absorbed and utilized by the mycelium as nutrients, and can also be used as a carrier to fix the mycelium of Pleurotus eryngii. These wastes can be used as cultivation materials for other edible fungus cultivation, and can be used as feed raw materials, but there is still a large amount of cultivation waste that cannot be recycled
Using Pleurotus eryngii cultivation waste to treat dye wastewater aims to improve the high cost of dye wastewater treatment and provide a new way for dye wastewater treatment
At present, there are almost no reports about utilizing cultivation waste to treat dye wastewater, so the present invention lays the foundation for rational utilization of dye wastewater treatment and cultivation waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1 : To study the effect of different metal ions on enzyme activity.

[0013] The cultivation material of Pleurotus eryngii after harvest was provided by the Microbial Engineering Laboratory of School of Life Sciences, Fujian Agriculture and Forestry University. The results of enzyme activity determination of cultivation materials after harvest of Pleurotus eryngii showed that: Pleurotus eryngii secreted laccase, manganese peroxidase, cellulase and hemicellulase, but did not secrete lignin peroxidase.

[0014] When Mn 2+ When the concentration is 2.5 mmol / L, laccase is activated; Ag + When the concentration was 5 mmol / L, both laccase and manganese peroxidase were inhibited; Fe 2+ When the concentration is 2.5 mmol / L, it inhibits laccase and promotes the secretion of manganese peroxidase, Ag + , Fe 2+ It has a strong inhibitory effect on laccase. Add 2.5 mmol / L Mn respectively 2+ , 5 mmol / L Ag + , 2.5 mmol / L Fe 2+ After that, the results of aniline blu...

Embodiment 2

[0015] Example 2 : Optimization of conditions for decolorization of aniline blue by cultivation materials after harvesting Pleurotus eryngii

[0016] After harvesting Pleurotus eryngii, the cultivation material was crushed with a pulverizer, mixed evenly, and then weighed 6 g respectively, put into a 100 mL reaction system, oscillated in a constant temperature shaker, and regularly sampled to verify the temperature, pH, rotation speed, dye concentration, mediator molecule, Mn 2+ The influence of concentration on the decolorization of aniline blue, observe the decolorization situation, measure its absorbance, and calculate the decolorization rate.

[0017] The result is as follows:

[0018] 1. Temperature: the result when the reaction system decolorizes for 210 minutes. When the temperature is from 10-30°C, the decolorization rate of aniline blue increases with the increase of temperature. When the temperature is higher than 30°C, the decolorization rate decreases with the ...

Embodiment 3

[0027] Example 3 : Pleurotus eryngii harvested cultivation material treatment of printing and dyeing wastewater and toxicology experiment

[0028] The ultraviolet scanning spectra before and after dye degradation showed that the characteristic absorption peak at 585 nm of aniline blue disappeared, indicating that the cultivation material of Pleurotus eryngii could degrade aniline blue after harvesting. Under the optimal decolorization conditions, the COD removal rate of aniline blue was 53.6%. The results of the degradation of industrial printing and dyeing wastewater by cultivation material after harvest of Pleurotus eryngii showed that the addition of cultivation material was positively correlated with the COD removal rate of printing and dyeing wastewater. At 30°C, 400 μmol / L ABTS, 5 mmol / L Mn 2+ , under the condition of 110 rpm to treat printing and dyeing wastewater, the COD removal rate reached 86.1%. The results of toxicological experiments showed that the germinati...

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Abstract

The invention concretely relates to a method for processing aniline-blue-containing pollution wastewater by using a cultivation material of harvested pleurotus eryngii. The method comprises: crushing the cultivation material of harvested pleurotus eryngii by using a crusher, pouring into aniline-blue-containing pollution wastewater, oscillating in a shaking table at a constant temperature, wherein the decoloring conditions for 100 mg / L of the aniline-blue-containing pollution wastewater comprises that the temperature is 20-40 DEG C, the molecular mediator is ABTS with the concentration of 400 mu mol / L, the Mn<2+> concentration is 1-3 mol / L, and the rotation speed is 50-150 rpm. By utilizing pleurotus eryngii cultivation waste material to process dye wastewater, environment is purified and also waste reutilization is realized, so that the method has good development prospect. The cultivation material of harvested pleurotus eryngii is taken as an experiment material for processing dye wastewater, is capable of adsorbing a part of a dye, and also is capable of secreting lignin digestive enzyme for degrading a toxic organic dye with a complex structure, and has important practical meaning on current dye wastewater processing.

Description

technical field [0001] The invention specifically relates to a method for treating wastewater containing aniline blue pollution with cultivation material after harvesting Pleurotus eryngii. Background technique [0002] With the continuous development of the economy, the living environment on which human beings depend for survival has been severely damaged. The environmental pollution of printing and dyeing wastewater in textile industry is becoming more and more serious. How to economically and effectively treat dye chemical wastewater is an urgent problem to be solved in environmental protection. Dye chemical wastewater has the basic characteristics of "four highs and one low" of high chroma, high COD, high salinity, high toxicity, and low B / C. Synthetic organic dyes have the characteristics of stable chemical structure. These refractory pollutants will Cause a series of environmental and ecological problems. [0003] Traditional physical and chemical treatment technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F3/34
CPCC02F3/342C02F2101/38C02F2103/30
Inventor 孙淑静陶玉维胡开辉
Owner FUJIAN AGRI & FORESTRY UNIV
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