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A heavy metal stabilizer with water-reducing and flocculating properties and preparation method thereof

A heavy metal stabilizer and flocculation technology, applied in the field of environmental engineering, can solve the problems of deviation of treatment effect and large dosage, and achieve the effect of reducing the cost of harmless treatment

Active Publication Date: 2020-03-13
青岛威瑞德环境科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of stabilizer has the problem of large dosage but deviation in treatment effect during use, and the stabilizing effect on a few heavy metals such as lead and cadmium with high activity still needs to be strengthened urgently

Method used

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  • A heavy metal stabilizer with water-reducing and flocculating properties and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Stir at 45°C at a speed of 130r / min to dissolve the following components: 25% dithiocarbamate, 15% dithioaminoacetate, 5% ethyl xanthate, allyl alcohol polyoxyethylene Ether 1%, isobutanol polyoxyethylene ether 1.5%, hydroxyethyl acrylate 0.5%, polyacrylamide 0.2%, sodium nitril triacetate 0.15%, sucrose 1.5%, sodium polyacrylate 0.05%, the rest of water, stirring The time is 1 hour, and the heavy metal stabilizer with both water-reducing and flocculating properties is obtained.

Embodiment 2

[0022] Stir at 55°C at a speed of 145r / min to dissolve the following components: 35% dithiocarbamate, 10% dithioaminoacetate, 5% ethyl xanthate, allyl alcohol polyoxyethylene Ether 0.5%, isoamyl alcohol polyoxyethylene ether 0.5%, isobutanol polyoxyethylene ether 0.5%, hydroxyethyl acrylate 0.5%, polyacrylamide 0.1%, sodium nitrilotriacetate 0.05%, sucrose 2.5%, polyacrylic acid Sodium 0.1%, the balance of water, stirring time is 2h, that is, a heavy metal stabilizer with both water reducing and flocculating properties can be obtained.

Embodiment 3

[0024] Stir at 40°C at a speed of 120r / min to dissolve the following components: 28% dithiocarbamate, 5% dithioaminoacetate, 6% ethyl xanthate, isoamyl alcohol polyoxyethylene 0.7% ether, 0.8% isobutanol polyoxyethylene ether, 0.8% hydroxyethyl acrylate, 0.14% polyacrylamide, 0.08% sodium nitril triacetate, 1.7% sucrose, 0.06% sodium polyacrylate, the rest of water, stirring The time is 1.4 hours, and the heavy metal stabilizer with both water-reducing and flocculating properties is obtained.

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Abstract

The invention discloses a heavy metal stabilizer with a water-reduction property and flocculability and a preparation method thereof. The heavy metal stabilizer comprises the following raw materials of dithiocarbamate, dithio amino-acetate, ethyl xanthate, allyl alcohol polyoxyethylene ether, isoamyl alcohol polyoxyethylene ether, isobutyl alcohol polyoxyethylene ether, hydroxyethyl acrylate, polyacrylamide, sodium ammonium triacetate, saccharose and sodium polyacrylate. The heavy metal stabilizer has the water-reduction property and the flocculability, through the water-reduction and flocculation effects, the dosage of the stabilizer is reduced, and various metal can be simultaneously treated, secondary pollution does not occur to the environment, harmless treatment cost of waste incineration flying ashes can be remarkably reduced, and the usage amount can be reduced above 30 % relative to other organic chelating agents. Apparent color of the heavy metal stabilizer is changed along with changing of the dosage of all components, but the practical effect of the heavy metal stabilizer is not affected.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a heavy metal stabilizer with water-reducing and flocculating properties and a preparation method thereof. Background technique [0002] Domestic waste treatment and disposal is one of the important topics in the field of environmental engineering and environmental sanitation. At present, the disposal methods of domestic waste include sanitary landfill, aerobic composting, anaerobic fermentation, pyrolysis, and incineration, among which sanitary landfill is the most common application. The sanitary landfill of domestic waste has the advantages of low cost and simple operation. However, with the sharp increase in the generation of domestic waste, the site selection of landfill and its potential secondary pollution risks have been greatly challenged. The incineration method is a new way to reduce, harmless and recycle domestic waste, and it has been more and more...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/33A62D101/08
CPCA62D3/33A62D2101/08
Inventor 王惠健朱旭方爱国周震峰
Owner 青岛威瑞德环境科技有限公司
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