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Treating agent for jointly removing heavy metal ions in industrial wastewater

A technology for heavy metal ions and industrial wastewater, applied in the field of water treatment, can solve problems such as complex treatment process, and achieve the effect of stabilizing metal precipitates

Pending Publication Date: 2019-10-25
CHONGQING VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the ultimate goal of processing heavy metals can be achieved in this way, the processing technology is more complicated.

Method used

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  • Treating agent for jointly removing heavy metal ions in industrial wastewater
  • Treating agent for jointly removing heavy metal ions in industrial wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The treatment agent for the combined removal of heavy metal ions in industrial wastewater in this embodiment, the raw materials include the following components by weight: 40 parts of polystyrene divinylbenzene resin microspheres, 5 parts of ethylenediaminetetraacetic acid, dithiocarbamic acid 5 parts of salt, 5 parts of polyethyleneimine, 10 parts of glutaraldehyde, 5 parts of black wattle tannin, 10 parts of poly(2-acrylamide-2-methylpropanesulfonic acid), 8 parts of maleic anhydride, 4 parts of hydrocarbyl dithiophosphate, 10 parts of polyaspartic acid, 5 parts of 2-amino-3-mercaptopropionyl chitosan, 2 parts of sodium polyethyleneimine xanthate, 2 parts of thioglycolic acid, ortho 1 part of dibutyl phthalate, 6 parts of polyepoxysuccinic acid, 1 part of dioctyl sodium sulfosuccinate, 1 part of crosslinking agent, and 1 part of coupling agent.

Embodiment 2

[0019] The treatment agent for the joint removal of heavy metal ions in industrial wastewater of this embodiment, the raw materials include the following components by weight: 50 parts of polystyrene divinylbenzene resin microspheres, 15 parts of ethylenediaminetetraacetic acid, dithiocarbamic acid 12 parts of salt, 15 parts of polyethyleneimine, 20 parts of glutaraldehyde, 12 parts of black wattle tannin, 15 parts of poly(2-acrylamide-2-methylpropanesulfonic acid), 12 parts of maleic anhydride, 12 parts of hydrocarbyl dithiophosphate, 20 parts of polyaspartic acid, 15 parts of 2-amino-3-mercaptopropionyl chitosan, 6 parts of sodium polyethyleneimine xanthate, 6 parts of thioglycolic acid, ortho 6 parts of dibutyl phthalate, 12 parts of polyepoxysuccinic acid, 5 parts of dioctyl sodium sulfosuccinate, 3 parts of crosslinking agent, and 3 parts of coupling agent.

Embodiment 3

[0021]The treatment agent for the combined removal of heavy metal ions in industrial wastewater of this embodiment, the raw materials include the following components by weight: 40 parts of polystyrene divinylbenzene resin microspheres, 15 parts of ethylenediaminetetraacetic acid, dithiocarbamic acid 5 parts of salt, 15 parts of polyethyleneimine, 10 parts of glutaraldehyde, 12 parts of black wattle tannin, 10 parts of poly(2-acrylamide-2-methylpropanesulfonic acid), 12 parts of maleic anhydride, 4 parts of hydrocarbyl dithiophosphate, 20 parts of polyaspartic acid, 5 parts of 2-amino-3-mercaptopropionyl chitosan, 6 parts of sodium polyethyleneimine xanthate, 2 parts of thioglycolic acid, ortho 6 parts of dibutyl phthalate, 6 parts of polyepoxysuccinic acid, 5 parts of dioctyl sodium sulfosuccinate, 1 part of crosslinking agent, and 3 parts of coupling agent.

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Abstract

The invention discloses a treating agent for jointly removing heavy metal ions in industrial wastewater. Raw materials comprise polystyrene divinylbenzene resin microspheres, ethylenediamine tetraacetic acid, a dithiocarbamate, polyethyleneimine, glutaraldehyde, black wattle tannin, poly(2-acrylamide-2-methylpropanesulfonic acid), maleic anhydride, dialkyl dithiophosphate, polyaspartic acid, 2-amino-3-mercaptopropionylchitosan, polyethyleneimine sodium xanthate, mercaptoacetic acid, dibutyl phthalate, polyepoxysuccinic acid, dioctyl sodium sulfosuccinate, a cross-linking agent and a coupling agent. The treating agent can be used to jointly remove heavy metal ions in industrial wastewater under coexistence ions, is not influenced by ion interference, and can form stable compounds precipitate with most monovalent and bivalent heavy metal ions such as Fe<2+>, Ni<2+>, Pb<2+>, Ag<+>, Zn<2+>, Cd<2+>, Hg<2+>, Ti <+>, Cr<3+> and the like for precipitation, so that the purpose of removing heavymetal ions is achieved. The removal effect can be achieved regardless of the concentrations of the heavy metal ions in wastewater. When a plurality of metal ions coexist, the metal ions can be simultaneously removed. When heavy metal ions exist in a form of complex salt (ethylene diamine tetraacetic acid (EDTA), tetramine and the like), a good removal effect can also be achieved.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a treatment agent for combined removal of heavy metal ions in industrial wastewater. Background technique [0002] Heavy metal wastewater refers to all kinds of wastewater derived from heavy metals. As for heavy metals in environmental ecology, from the perspective of toxicity and element migration and transformation laws, wastewater containing As, Se, and Al is generally included in the category of heavy metal wastewater. At this stage, heavy metals in the traditional environmental field mainly refer to Elements with significant biological toxicity such as Hg, Pb, Cd, Cr, and metalloid As with heavy metal properties, sometimes also refer to general heavy metals such as Zn, Cu, Co, Ni, and Sn with certain toxicity. Industrial wastewater containing heavy metal ions mainly comes from mechanical processing, mining, smelting of steel and non-ferrous metals, and some chemical companies...

Claims

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Application Information

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IPC IPC(8): C02F1/62
CPCC02F1/62
Inventor 王金霞蔡庆詹玲玲
Owner CHONGQING VOCATIONAL INST OF ENG
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