A kind of multi-element catalytic micro-electrolysis filler and its preparation method and application

A micro-electrolysis and multi-component technology, applied in the direction of chemical instruments and methods, special compound water treatment, water/sewage treatment equipment, etc., can solve the problems of flow rate drop, affect treatment effect, and reduce reaction speed, etc., to increase pore formation High efficiency, wide application range, and the effect of increasing the contact area

Active Publication Date: 2016-05-04
徐艳萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional micro-electrolysis technology mostly uses a simple mixture of iron filings and activated carbon as the micro-electrolysis material. In the actual engineering application process, this type of filler has been used for a long time to form a passivation film on the surface of the filler, blocking the poisonous water in the water. The contact between harmful substances and fillers affects the treatment effect, iron filings are easy to harden, and the filler layer is formed into a whole. The water flow is in a channel flow state, the flow rate decreases, and the reaction speed decreases. In addition, the granular mixed filler is regularly replenished and replaced. There are many inconveniences in the process

Method used

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  • A kind of multi-element catalytic micro-electrolysis filler and its preparation method and application
  • A kind of multi-element catalytic micro-electrolysis filler and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0051] Embodiment 1: Preparation of multi-element micro-electrolysis filler

[0052] Weigh 32kg of iron powder, 26kg of aluminum powder, 12kg of activated carbon powder, 8kg of copper powder, 4kg of zinc powder, 10kg of diatomaceous earth, 4kg of ammonium chloride, and 2kg of sodium tetraborate. Put it into a roller press, press it into an oval semi-finished product B under a pressure of 150-200KN, place the semi-finished product B in an oven, and dry it at a temperature of 60-110°C for 24 hours to form a semi-finished product C. Put the semi-finished product C into Fill the furnace with nitrogen, heat up to 400-500°C and roast for 20-30 minutes, then heat up to 900-1000°C and roast for 60-90 minutes to obtain semi-finished product D, naturally cool semi-finished product D in the furnace to below 100°C, take it out and put it Continue cooling to room temperature in a ventilated place to obtain multi-component catalytic micro-electrolysis filler.

Embodiment 2

[0053] Embodiment 2: the preparation of multi-component micro-electrolytic filler

[0054] Weigh 40kg of iron powder, 22kg of aluminum powder, 16kg of activated carbon powder, 5kg of copper powder, 5kg of zinc powder, 6kg of diatomaceous earth, 2kg of ammonium chloride, and 4kg of sodium tetraborate. Put it into a roller press, press it into an oval semi-finished product B under a pressure of 150-200KN, place the semi-finished product B in an oven, and dry it at a temperature of 60-110°C for 24 hours to form a semi-finished product C. Put the semi-finished product C into Fill the furnace with nitrogen, heat up to 400-500°C and roast for 20-30 minutes, then heat up to 900-1000°C and roast for 60-90 minutes to obtain semi-finished product D, naturally cool semi-finished product D in the furnace to below 100°C, take it out and put it Continue cooling to room temperature in a ventilated place to obtain multi-component catalytic micro-electrolysis filler.

Embodiment 3

[0055] Embodiment 3: the preparation of multi-component micro-electrolytic filler

[0056]Weigh 35kg of iron powder, 25kg of aluminum powder, 13kg of activated carbon powder, 6kg of copper powder, 5kg of zinc powder, 10kg of diatomaceous earth, 3kg of ammonium chloride, and 3kg of sodium tetraborate. Put it into a roller press, press it into an oval semi-finished product B under a pressure of 150-200KN, place the semi-finished product B in an oven, and dry it at a temperature of 60-110°C for 24 hours to form a semi-finished product C. Put the semi-finished product C into Fill the furnace with nitrogen, heat up to 400-500°C and roast for 20-30 minutes, then heat up to 900-1000°C and roast for 60-90 minutes to obtain semi-finished product D, naturally cool semi-finished product D in the furnace to below 100°C, take it out and put it Continue cooling to room temperature in a ventilated place to obtain multi-component catalytic micro-electrolysis filler.

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Abstract

The invention discloses multi-element catalytic microelectrolysis packing as well as a preparation method and application thereof, and belongs to the field of wastewater treatment. The multi-element catalytic microelectrolysis packing is mainly prepared from iron powder, aluminum powder, dried carbon powder, copper powder, zinc powder, kieselguhr, ammonium chloride and sodium tetraborate through steps of weighing, uniform mixing, forming, drying and roasting, cooling and the like. When the multi-element catalytic microelectrolysis packing is used in sewage treatment, the biodegradability of wastewater is remarkably improved, and the packing is not easy to cake, not easy to passivate, long in service life, convenient and rapid to fill and simple to maintain.

Description

technical field [0001] The invention relates to a micro-electrolytic filler and its preparation method and application, in particular to a multi-element catalytic micro-electrolytic filler and its preparation method and application, belonging to the field of wastewater treatment. Background technique [0002] The treatment of high-concentration, biodegradable chemical wastewater is very difficult economically and technically. Using conventional physical, chemical and biological methods to treat this type of wastewater is not only costly and inefficient, but also difficult to meet the discharge standards, resulting in Serious environmental pollution. [0003] Micro-electrolysis technology is an effective pretreatment method for treating high-concentration and difficult-to-biodegradable chemical wastewater. Its working principle is to use the micro-electrolysis material filled in the wastewater to generate a potential difference, and to electrolyze the wastewater to convert th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461
CPCC02F1/461C02F1/46114C02F2001/46133C02F2201/46105C02F2305/04
Inventor 徐艳萍黄力华
Owner 徐艳萍
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