Method for preparing microelectrolysis filler by using various industrial solid wastes

A solid waste and solid waste technology is applied in the field of preparing micro-electrolytic fillers, which can solve the problems of high cost of sewage treatment, large market demand for iron filings, and high cost of treating sewage with iron filings treatment layer, so as to avoid the oxide film on the surface of the filler. The effect of forming, increasing the rate of electrochemical corrosion, and solving the problem of passivation of fillers

Inactive Publication Date: 2012-01-04
杨祺
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Problems solved by technology

[0002] The existing method of treating sewage with micro-electrolytic fillers is to use iron filings and coke or iron filings and activated carbon to form a sewage treatment layer; the efficiency of coke treatment layer for sewage treatment is low, the cost of activated carbon treatment layer for sewage treatment is high, and the market demand for iron filings is large , Wide range of applications, high price, high cost of sewage treatment in the iron filings treatment layer; at the same time, the existing micro-electrolytic fillers are prone to passivation (oxidation film is formed on the surface of iron and iron particles), hardening and clogging during use. Reduce the effect of micro-electrolytic fillers in treating sewage, or even fail to operate

Method used

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  • Method for preparing microelectrolysis filler by using various industrial solid wastes
  • Method for preparing microelectrolysis filler by using various industrial solid wastes
  • Method for preparing microelectrolysis filler by using various industrial solid wastes

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example 1

[0027] The converter dust sludge and blast furnace dust sludge of Baotou Steel Group are mixed according to the weight ratio of converter dust sludge:blast furnace sludge = 2:1 to form metallurgical comprehensive iron-containing sludge.

[0028] According to the comprehensive iron-containing dust sludge of Baotou Steel Group: the waste activated carbon of Shandong Xinhua Pharmaceutical Co., Ltd.: the sludge produced by physicochemical treatment of high-concentration organic sewage of Shandong Xinhua Pharmaceutical Co., Ltd.: bentonite: water glass=70wt.%: 15wt. %: 5wt.%: 7wt.%: 3wt.% The ratio is mixed evenly.

[0029] At a pressure of 1.68×10 8 Pa is pressed into an oval spherical shape with a particle size of 15-25mm.

[0030] Then place it in a roasting furnace with a temperature of 1250°C, use waste activated carbon from Shandong Xinhua Pharmaceutical Co., Ltd. as a reducing material, and roast for 5 hours to reduce FeO to metallic iron, so that the metal iron-carbon, met...

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Abstract

The invention belongs to a method for preparing a microelectrolysis filler by using various industrial solid wastes and particularly relates to a treatment method for comprehensive utilization of various industrial solid wastes. Aiming at the drawbacks of the conventional microelectrolysis filler, the invention provides a method for preparing the microelectrolysis filler, which is different from the conventional microelectrolysis filler, by using various industrial solid wastes. In the method, the various industrial solid wastes are subjected to innocent treatment in high-temperature and high-heat environments by taking full advantage of the chemical components of the various industrial solid wastes, adopting a mixing, pelletizing and roasting process and fully utilizing a roasting system, and then are prepared into the microelectrolysis filler; and the method has unique technical and economic advantages and meets environment-protection requirements.

Description

technical field [0001] The invention belongs to a method for preparing micro-electrolytic fillers, and in particular relates to a treatment method for the comprehensive utilization of various industrial solid wastes. Background technique [0002] The existing method of treating sewage with micro-electrolytic fillers is to use iron filings and coke or iron filings and activated carbon to form a sewage treatment layer; the efficiency of coke treatment layer for sewage treatment is low, the cost of activated carbon treatment layer for sewage treatment is high, and the market demand for iron filings is large , Wide range of applications, high price, high cost of sewage treatment in the iron filings treatment layer; at the same time, the existing micro-electrolytic fillers are prone to passivation (oxidation film is formed on the surface of iron and iron particles), hardening and clogging during use. The effect of the micro-electrolytic filler in treating sewage is reduced, or ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461B09B3/00
Inventor 杨祺陈建清张永宏
Owner 杨祺
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