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Preparation method of water-treatment iron-carbon micro-electrolysis agent

A micro-electrolyte, water treatment technology, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as mixing, channeling of packing layers, and iron filings

Inactive Publication Date: 2014-01-22
SHAANXI SHENGMAI PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In practical application, after a period of use of the traditional iron-coke bed, there will be a problem of iron filings compaction. As a result, channeling occurs in the packing layer and the treatment efficiency drops rapidly
At the same time, iron filings are constantly consumed as anodes and must be replenished regularly, but how to fully mix with the original carbon components is also a difficult point

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Mix the iron filings passed through a 100-mesh sieve, powdered activated carbon and bentonite, add water and additives, stir and mix well, artificially granulate to make a 2.5-4.0 mm spherical shape, then dry at 105°C for 20 minutes, and then roast at 500°C to obtain water Treatment of iron-carbon micro-electrolytes.

[0010]

Embodiment 2

[0012] Put 50 g of the iron-carbon microelectrolyte for water treatment prepared in Example 1 into 200 mL of waste water (solid-to-liquid ratio 1:4), adjust the pH to 3, and react for 60 minutes. Measured COD Cr The removal rate is 22%, the biological acute toxicity reduction rate of wastewater is as high as 90%, and the B / C is increased by about 60%.

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PUM

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Abstract

The invention aims to provide a wastewater treatment matter, and discloses a preparation method of a water-treatment iron-carbon micro-electrolysis agent. The preparation method of the water-treatment iron-carbon micro-electrolysis agent comprises the following steps: mixing 4L of scrap iron sieved by a 100 mesh sieve, 4L of powder activated carbon and 2L of bentonite, adding water and ammonium bicarbonate, stirring evenly, making into balls by artificial granulating, then drying for 20min at 105 DEG C, and roasting at high temperature. The water-treatment iron-carbon micro-electrolysis agent can effectively remove organic matters in the wastewater, reduce biotoxicity of the wastewater and improve the biodegradability of the wastewater.

Description

technical field [0001] The present invention aims to provide a waste water treatment product. Background technique [0002] The micro-electrolysis method is also called the internal electrolysis method and the zero-valent iron method. Because of the advantages of wide application range, good treatment effect, long service life and low cost, this technology has been widely used. At the same time, using scrap iron scraps as raw materials also has the meaning of "treating waste with waste". The micro-electrolysis method uses the iron and carbon components (or coke, activated carbon, etc.) in the iron filings to form a primary battery, and the wastewater is an electrolyte solution. The electrochemical oxidation-reduction reaction is mainly accompanied by coagulation adsorption, catalytic oxidation, complexation and electrodeposition. It has a good treatment effect on industrial wastewater such as printing and dyeing wastewater, pharmaceutical wastewater, and coking wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM
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