Micro-electrolytic filling material and preparation method thereof

A technology of micro-electrolysis and iron filings, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. Battery and other problems, to achieve the effect of good adsorption and catalytic carrier effect, strong activity, and reduced operating intensity

Inactive Publication Date: 2016-09-14
江苏保瑞工业水处理有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Micro-electrolysis technology has carried out a large number of experimental studies on printing and dyeing wastewater, papermaking wastewater, coking wastewater, explosives wastewater, pharmaceutical wastewater, oily wastewater, landfill leachate, high-salinity wastewater, etc. Micro-electrolysis technology has a certain degree of COD removal , while greatly improving the biodegradability of wastewater, especially for acidic wastewater, the PH value is greatly increased, and the cost of neutralizing agents is also greatly saved. Therefore, at present, the application prospect of micro-electrolysis technology is broad, but there are existing The followin

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  • Micro-electrolytic filling material and preparation method thereof
  • Micro-electrolytic filling material and preparation method thereof

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Embodiment 1

[0051] A micro-electrolytic filler, the content of each component is as follows (wt%): iron powder: 60; iron filings: 15; purple sand: 2; borax: 2; bentonite: 5; activated carbon powder: 6; 0.1; corn starch: 0.2; sodium carboxymethylcellulose: 0.1. The preparation method comprises the following steps (1) screening of raw materials: removing impurities and screening of various raw materials as required; (2) mixing of raw materials: mixing the iron powder, iron filings, purple sand, borax, bentonite, activated carbon powder, hydrogen Sodium oxide, zeolite, corn starch, and sodium carboxymethyl cellulose were mixed uniformly by a mechanical mixer according to the ratio, and the stirring time was 60 minutes; (3) Film forming: After adding water, stirring and aging for 20 minutes, the mixture was mechanically extruded. A shaped filler with a diameter of 80 mm and a height of 60 mm was obtained, and a wet filler body was made through demoulding; (4) Drying and sintering: After natur...

Embodiment 2

[0056]A micro-electrolytic filler, the content of each component is as follows (wt%): iron powder: 60; iron filings: 15; purple sand: 3; borax: 1; bentonite: 8; activated carbon powder: 8; sodium hydroxide: 1; 0.5; corn starch: 0.5; sodium carboxymethylcellulose: 0.8. The preparation method comprises the following steps (1) screening of raw materials: removing impurities and screening of various raw materials as required; (2) mixing of raw materials: mixing the iron powder, iron filings, purple sand, borax, bentonite, activated carbon powder, hydrogen Sodium oxide, zeolite, corn starch, and sodium carboxymethyl cellulose were mixed uniformly by a mechanical mixer according to the ratio, and the stirring time was 60 minutes; (3) Film forming: After adding water, stirring and aging for 20 minutes, the mixture was mechanically extruded. A shaped filler with a diameter of 120mm and a height of 100mm was obtained, and a wet filler body was made through demoulding; (4) Drying and si...

Embodiment 3

[0060] A micro-electrolytic filler, the content of each component is as follows (wt%): iron powder: 64; iron filings: 16; purple sand: 2; borax: 2.5; bentonite: 5; activated carbon powder: 5; 0.4; corn starch: 0.3; sodium carboxymethylcellulose: 0.7. The preparation method comprises the following steps (1) screening of raw materials: removing impurities and screening of various raw materials as required; (2) mixing of raw materials: mixing the iron powder, iron filings, purple sand, borax, bentonite, activated carbon powder, hydrogen Sodium oxide, zeolite, corn starch, and sodium carboxymethyl cellulose were mixed uniformly by a mechanical mixer according to the ratio, and the mixing time was 60 minutes; (3) Film forming: After adding water, stirring and aging for 25 minutes, the mixture was mechanically extruded. A shaped filler with a diameter of 90mm and a height of 80mm was obtained, and a wet filler body was made through demoulding; (4) Drying and sintering: after natural...

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Abstract

The invention discloses a micro-electrolytic filling material and a preparation method thereof. The micro-electrolytic filling material comprises the following components in parts by weight: 60 to 70 parts of iron powder, 15 to 20 parts of iron chips, 2 to 3 parts of purple sand, 2 to 3 parts of borax, 5 to 8 parts of bentonite, 6 to 8 parts of active carbon powder, 0.2 to 1 part of sodium hydroxide, 0.1 to 0.5 part of zeolite, 0.2 to 0.5 part of corn starch, and 0.1 to 0.8 part of carboxymethylcellulose sodium. The preparation method comprises steps of raw material screening, raw material mixing, film squeezing, moulding, drying, and sintering. Compared with the prior art, the micro-electrolytic filling material has the characteristics of high micro-electrolytic efficiency, no hardening, low cost, long service life, and good purifying and filtering effect.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a micro-electrolytic filler and a preparation method thereof. Background technique [0002] The iron-carbon micro-electrolysis technology mainly utilizes the combined action of the reduction of iron, the electrochemical properties of iron, and the flocculation and adsorption of iron ions to purify wastewater. [0003] The electrolytic materials of the iron-carbon micro-electrolysis process generally use cast iron scraps and activated carbon or coke. When the materials are immersed in wastewater, electrolytic reactions occur both internally and externally. On the one hand, cast iron contains a small amount of iron carbide, and there is an obvious redox potential difference between iron carbide and pure iron, so many tiny primary batteries are formed inside the cast iron filings, pure iron is used as the anode of the primary battery, and iron carbide is used as t...

Claims

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Application Information

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IPC IPC(8): C02F1/461
CPCC02F1/46104
Inventor 周亚强陈欢周萍周敏陈艳吴正强吴虎强
Owner 江苏保瑞工业水处理有限公司
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