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Industrial wastewater degradation/microelectrolysis iron-carbon filler and preparation method thereof

A technology of industrial wastewater degradation and micro-electrolysis of iron, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. The problem is that the preparation method is simple and reasonable, the conditions are mild, and the effect is good.

Active Publication Date: 2015-06-24
WUHAN STEEL NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem with the above iron-carbon fillers is that the iron powder they use is uneven, the preparation conditions are harsh, and the sintering temperature is too high to cause the iron powder to oxidize and reduce the activity of the filler. In addition, the existing adhesives still have insufficient strength. , easy to decompose in water, affect the use of fillers and other shortcomings

Method used

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  • Industrial wastewater degradation/microelectrolysis iron-carbon filler and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0042] The micro-electrolytic iron-carbon filler for degrading industrial wastewater consists of the following components: 65 parts by weight of iron powder, 35 parts by weight of activated carbon and 1.5 parts by weight of binder;

[0043] Iron powder is iron powder with 4% carbon content;

[0044] The binder consists of 6 parts by weight of sodium silicate, 2 parts by weight of calcium chloride and 2 parts by weight of hydroxypropyl cellulose.

[0045] The method for preparing the above-mentioned organic pollutant degradation micro-electrolytic iron-carbon filler comprises the following steps:

[0046] (1) Prepare binder: mix sodium silicate, calcium chloride and hydroxypropyl cellulose uniformly by weight to obtain binder;

[0047] (2) Mixing: put iron powder, activated carbon and binding agent into the mixer by weight ratio and mix evenly;

[0048] (3) into a ball: put the raw material mixed in the step (2) into a ball into a ball;

[0049] (4) Drying and forming: heat ...

Embodiment 2

[0051] The micro-electrolytic iron-carbon filler for degrading industrial wastewater consists of the following components: 55 parts by weight of iron powder, 30 parts by weight of activated carbon and 1 part by weight of binder;

[0052] Iron powder is iron powder with 4% carbon content;

[0053] The binder consists of 5 parts by weight of sodium silicate, 1 part by weight of calcium chloride and 1 part by weight of hydroxypropyl cellulose.

[0054] The preparation method is as in Example 1, wherein the drying temperature in step (4) is 300°C.

Embodiment 3

[0056] The micro-electrolytic iron-carbon filler for degrading industrial wastewater consists of the following components: 70 parts by weight of iron powder, 40 parts by weight of activated carbon and 2 parts by weight of binder;

[0057] Iron powder is iron powder with 4% carbon content;

[0058] The binder consists of 6 parts by weight of sodium silicate, 3 parts by weight of calcium chloride and 3 parts by weight of hydroxypropyl cellulose.

[0059] The preparation method is as in Example 1, wherein the drying temperature in step (4) is 260°C.

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Abstract

The invention discloses an industrial wastewater degradation / microelectrolysis iron-carbon filler which is composed of the following components in parts by weight: 55-70 parts of iron powder, 30-40 parts of activated carbon and 1-2 parts of adhesive. The carbon content of the iron powder is 4%. The adhesive is composed of the following components in parts by weight: 5-6 parts of sodium silicate, 1-3 parts of calcium chloride and 1-3 parts of hydroxypropyl cellulose. The invention also discloses a preparation method of the industrial wastewater degradation / microelectrolysis iron-carbon filler. The industrial wastewater degradation / microelectrolysis iron-carbon filler does not have the phenomenon of hardening or passivation. The adhesive is stable and can not be easily hydrolyzed when in use. The preparation method is simple and reasonable, and can implement preparation in conventional equipment under mild conditions. The industrial wastewater degradation / microelectrolysis iron-carbon filler is spherical, and has the advantages of large sewage contact surface and favorable pollutant treatment effect.

Description

technical field [0001] The invention relates to a material for degrading industrial wastewater pollutants, in particular to an industrial wastewater degradable micro-electrolytic iron-carbon filler, and also relates to a method for preparing the industrial wastewater-degradable micro-electrolytic iron-carbon filler. Background technique [0002] The iron-carbon filler is an iron-carbon primary battery composed of iron and carbon. In the absence of electricity, the metal iron forms the positive electrode, and the carbon forms the negative electrode to form the primary battery. A large number of positive electrodes and negative electrodes form a power grid according to a certain ratio. Filtration and electrolytic treatment of industrial wastewater to achieve the purpose of degrading organic pollutants. Further, iron and carbon can be slowly eliminated under the action of acid and alkali (and heavy metals), so as to achieve the purpose of sewage treatment. [0003] The inventi...

Claims

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Application Information

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IPC IPC(8): C02F1/461
Inventor 沈远亮
Owner WUHAN STEEL NEW MATERIAL
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