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A method of treating textile printing and dyeing dye wastewater by using waste brown mushroom residue

A dye wastewater, textile printing and dyeing technology, applied in the direction of textile industry wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as not very good, time-consuming, raw material composition and complex process, etc., to improve economic benefits, The effect of reducing costs and improving secondary utilization efficiency

Active Publication Date: 2020-12-04
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The raw material composition and process of the treatment method disclosed in the above documents are relatively complicated, time-consuming and laborious, and the treatment effect is not very good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for treating textile printing and dyeing dye wastewater by using waste brown mushroom residue, comprising the steps of:

[0031] Dry 100g of brown mushroom residues in an electric blast drying oven at 105°C for 3.5h to constant weight. Take 10g of brown mushroom slag and immerse in 200mL of 10g / L ferric chloride solution, place it in a constant temperature oscillator (150r / min, temperature 25°C) and load it for 2 hours, take it out, and dry it to get ferric chloride-loaded Brown mushroom residues are set aside.

[0032] Take 3g of brown mushroom residue loaded with ferric chloride, put it into a 250mL conical flask filled with 100ml of dye wastewater containing 10mg / L methylene blue, and put it at 25°C, 150r / min, hydrogen peroxide concentration 3mmol / L, pH 3 Carry out adsorption and oxidative decomposition. The maximum adsorption and decomposition rate reaches 96.2%, and it can be reused for 30 cycles without significant reduction in the adsorption and decomp...

Embodiment 2

[0034] A method for treating textile printing and dyeing dye wastewater by using waste brown mushroom residue, comprising the steps of:

[0035]Take 2g of brown mushroom residue loaded with ferric chloride, put it into a 250mL conical flask filled with 100ml of dye wastewater containing 900mg / L methylene blue, and put it at 30°C, 100r / min, hydrogen peroxide concentration 5mmol / L, pH For 4, shock adsorption and oxidation decomposition are carried out. Processing 8h.

[0036] The preparation method of the brown mushroom residue loaded with ferric chloride is the same as in Example 1.

Embodiment 3

[0038] A method for treating textile printing and dyeing dye wastewater by using waste brown mushroom residue, comprising the steps of:

[0039] Take 5g of brown mushroom residue loaded with ferric chloride, put it into a 250mL conical flask filled with 100ml of dye wastewater containing 450mg / L methylene blue, and put it at 20°C, 120r / min, hydrogen peroxide concentration 2mmol / L, pH 2 for shock adsorption and oxidative decomposition. Processing 8h.

[0040] The preparation method of the brown mushroom residue loaded with ferric chloride is the same as in Example 1.

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Abstract

The invention belongs to the technical field of dye wastewater treatment, in particular to a method for treating textile printing and dyeing dye wastewater by using waste brown mushroom residues. Themethod comprises the following steps: drying the waste brown mushroom residues at 105 DEG C for 3.5h till constant weight; immersing 10g of the waste brown mushroom residues into 200mL of a ferric trichloride solution with the concentration of 10g / L, loading for 2 hours at a rotating speed of 150r / min and at the temperature of 25 DEG C, then taking out, and drying to obtain the ferric trichloride-loaded waste brown mushroom residues; adding the mushroom residues into wastewater according to the using amount of 2-5g / 100mL; performing oscillating adsorption and oxidative decomposition for 3-8h at the temperature 20-30 DEG C and at a rotating speed of 60-180r / min. By the method, agricultural wastes, namely the waste brown mushroom residues, are applied to dye adsorption in the printing and dyeing industry, so that treatment of the wastes by the wastes is achieved; the adsorption rate is high, the waste brown mushroom residues can be reused for more than 30 times, and the adsorption and decomposition rate does not significantly decrease.

Description

technical field [0001] The invention belongs to the technical field of dye wastewater treatment, and in particular relates to a method for treating dye wastewater by using waste brown mushroom residue. Background technique [0002] Printing and dyeing wastewater refers to the wastewater discharged during the pretreatment, dyeing, printing and finishing processes of cotton, wool, chemical fiber and other textile products. The composition of printing and dyeing wastewater is complex, mainly based on aromatic hydrocarbons and heterocyclic compounds, with chromogenic groups (such as -N=N-, -N=O) and polar groups (-SO 3 Na, -OH, -NH 2 ). These organic molecules have the characteristics of high concentration, many refractory substances, high chroma, high toxicity and large changes in water quality. They are refractory wastewater, and traditional water treatment methods are not ideal. In the textile printing and dyeing industry, most dyes are difficult to biodegrade, toxic, and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F1/72B01J20/24B01J20/30C02F103/30C02F101/30
CPCB01J20/0229B01J20/0288B01J20/24B01J2220/4887C02F1/288C02F1/72C02F2101/308C02F2103/30C02F2305/026
Inventor 李政王玉刘东妮何贵东巩继贤张健飞
Owner TIANJIN POLYTECHNIC UNIV
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