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Preparation method of nanometer iron-copper-carbon micro electrolysis material for organic waste water treatment

A technology for organic wastewater and organic wastewater treatment, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. The effect of improving oxidation efficiency, increasing activation surface area, and improving treatment efficiency

Active Publication Date: 2014-04-09
HUAWEI TEHCHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a preparation method for nano-iron-copper-carbon micro-electrolysis materials used to treat organic wastewater, which can effectively solve the problems of iron-carbon micro-electrolysis technology that is easy to harden and treatment efficiency drops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Mix acrylic acid and water at a ratio of 1:1 by volume, and add the self-made copper-iron hydrotalcite particles that have passed through a 20-mesh sieve to the acrylic acid solution, and stir at a constant temperature of 60°C. 5 h, aged for 12 h, then added ammonium persulfate to initiate the polymerization of acrylic acid, the amount of ammonium persulfate per gram of hydrotalcite was 5 mmol, heated to 60°C, reacted for 8 h, washed twice with deionized water, and dried at 70°C Dry, grind, and pass through a 20-mesh sieve to obtain powder; put the obtained powder into a vacuum tube furnace, heat to 600°C under vacuum conditions, vacuum calcinate for 2 h, and cool to room temperature; take 2 g of the powdery solid and put it in In the bottle, add 20ml deionized water, pass through N 2 Stir after protection, and then add 25 ml of KBH with a concentration of 0.5mol / L 4 The solution was added to the stirred solution, and the stirring was continued for 30 min; centrifuged, ...

Embodiment 2

[0028] Mix acrylic acid and water at a ratio of 1:2 by volume. According to the amount of 5 mmol of acrylic acid per gram of copper-iron hydrotalcite, add commercially available copper-iron hydrotalcite particles that pass through a 50-mesh sieve into the acrylic acid solution, and keep the temperature at 70°C. Stir for 6 h, age for 24 h, then add ammonium persulfate to initiate the polymerization of acrylic acid, the amount of ammonium persulfate per gram of hydrotalcite is 15 mmol, heat to 90°C, react for 10 h, wash 3 times with deionized water, 90°C Dry, grind, and pass through a 40-mesh sieve to obtain powder; put the obtained powder into a vacuum tube furnace, heat to 700°C under vacuum, calcine in vacuum for 4 h, and cool to room temperature; take 4 g of the powdery solid and put into the bottle, add 20ml of deionized water, pass through N 2 Stir after protection, then add 40 ml of KBH with a concentration of 1 mol / L 4 The solution was added to the stirred solution, and...

Embodiment 3

[0031] Mix acrylic acid and water at a ratio of 1:2 by volume. According to the amount of 4 mmol of acrylic acid per gram of copper-iron hydrotalcite, add self-made copper-iron hydrotalcite particles that pass through a 30-mesh sieve into the acrylic acid solution, and stir at a constant temperature of 70°C for 6 h, aged for 18 h, then added ammonium persulfate to initiate the polymerization of acrylic acid, the amount of ammonium persulfate per gram of hydrotalcite is 10 mmol, heated to 70 °C, reacted for 9 h, washed 3 times with deionized water, and dried at 80 °C , grind, and pass through a 30-mesh sieve to obtain a powder; put the obtained powder into a vacuum tube furnace, heat to 650°C under vacuum, calcine in a vacuum for 3 h, and cool to room temperature; take 3 g of the powdery solid and put it into a bottle In, add 20ml deionized water, pass through N 2 Stir after protection, then add 30 ml of KBH with a concentration of 0.8 mol / L 4 The solution was added to the sti...

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PUM

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Abstract

The present invention discloses a preparation method of a nanometer iron-copper-carbon micro electrolysis material for organic waste water treatment. The preparation method comprises: mixing acrylic acid and water; adding copper-iron hydrotalcite particles to the acrylic acid solution, wherein per g of the copper-iron hydrotalcite particles is corresponding to 3-5 mmol of the acrylic acid, and the copper-iron hydrotalcite particles are screened through a 20-50 mesh sieve; adding ammonium persulfate, heating, washing with deionized water, drying, grinding, and screening through a 20-40 mesh sieve to obtain powder; heating the obtained powder under a vacuum condition to 600-700 DEG C, and carrying out calcination for 2-4 h; adding 2-4 g of the resulting product into a flask, adding 20 ml of deionized water, introducing N2 to carry out protection, stirring, then adding a KBH4 solution, and carrying out continuous stirring; and carrying out centrifugation separation, and carrying out constant temperature drying for 5-6 h at a temperature of 60-70 DEG C under N2 protection to obtain the nanometer iron-copper-carbon micro electrolysis material for organic waste water treatment, wherein an activated surface area can be increased, pollutants can be absorbed, a nanometer effect of the nano-scale iron-copper-carbon can be provided, and oxidation efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment in environmental protection, in particular to a preparation method of a nano-iron-copper-carbon micro-electrolytic material used for treating organic waste water. Background technique [0002] The traditional micro-electrolysis process usually uses a mixture of iron filings and carbon (coke or activated carbon) for various sewage pretreatments. In the scope of sewage treatment, electrolysis is suitable for difficult-to-treat wastewater projects such as electroplating, petrochemical, printing and dyeing, gas washing, pharmaceuticals, papermaking, etc., and the treatment effect is obvious, but there are some problems, which are the hardening of fillers, The cost of passivation and fillers is prohibitive. [0003] Among the treatment methods of refractory industrial wastewater, the iron-carbon micro-electrolysis method is the most commonly used. Poor, countless micro primary batteries will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461
Inventor 马建锋邹静李定龙杨彦
Owner HUAWEI TEHCHNOLOGIES CO LTD
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