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Deep fluorine removal agent as well as preparation method and application thereof

A defluoridation agent, deep technology, applied in the field of pollutant treatment, can solve the problems of unfavorable large-scale quantitative production, complex preparation process of defluoridation agent, harsh process conditions, etc., achieve obvious defluorination effect, stable water output effect index, and run low cost effect

Pending Publication Date: 2020-08-25
神美科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fluorine removal agent has a good fluoride removal effect, the preparation process of the fluoride removal agent is relatively complicated, and the process conditions are slightly harsh, which is not conducive to large-scale quantitative production

Method used

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  • Deep fluorine removal agent as well as preparation method and application thereof

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Effect test

Embodiment 1

[0022] The deep defluoridation agent described in this embodiment is composed of the following components in parts by mass: 70 parts of polyaluminum chloride, 10 parts of aluminum sulfate, 5 parts of ferric chloride, 10 parts of slaked lime, 3 parts of sodium metaaluminate, 2 parts of methyl diallyl ammonium chloride. Weigh the raw materials in selected parts by mass, grind, stir, and fully mix to prepare the deep defluoridation agent CF-1.

Embodiment 2

[0024] The deep defluoridation agent described in this embodiment is composed of the following components by mass: 66 parts of polyaluminum chloride, 12 parts of aluminum sulfate, 6 parts of ferric chloride, 12 parts of slaked lime, 2 parts of sodium metaaluminate, 2 parts of methyl diallyl ammonium chloride. Weigh the selected raw materials in parts by mass, grind, stir, and fully mix to prepare the deep defluoridation agent CF-2.

Embodiment 3

[0026] The deep defluoridation agent described in this embodiment is composed of the following components by mass: 68 parts of polyaluminium chloride, 11 parts of aluminum sulfate, 5 parts of ferric chloride, 11 parts of slaked lime, 4 parts of sodium metaaluminate, 1 part of methyl diallyl ammonium chloride. Weigh the selected raw materials in parts by mass, grind, stir, and fully mix to prepare the deep defluoridation agent CF-3.

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Abstract

The invention belongs to the technical field of pollutant treatment, particularly relates to a deep fluorine removal agent, and further discloses a preparation method and application thereof. According to the deep fluorine removal agent, polyaluminum chloride, aluminum sulfate, ferric chloride, slaked lime, sodium metaaluminate and polydimethyldiallyl ammonium chloride are used as raw materials; the fluorine removal rate of the deep fluorine removal agent can reach 95% or above; even when low-concentration fluorine-containing wastewater (less than or equal to 20 mg / L) is treated, the removal rate of fluorine ions can reach 95% or above only after stirring reaction is carried out for 20 minutes, the fluorine content in effluent can reach the first-grade discharge standard, the fluorine removal rate is high, the fluorine removal effect is obvious, and deep fluorine removal of the fluorine-containing wastewater can be realized.

Description

technical field [0001] The invention belongs to the technical field of pollutant treatment, specifically relates to a deep defluorination agent, and further discloses its preparation method and application. Background technique [0002] Fluoride is an indispensable raw material for the production of many chemical products. It is widely used in iron and steel smelting, coal chemical industry, electroplating and other industries. As a result, a large amount of fluoride is often produced during the production and processing of aluminum molds and chemical fertilizers. Fluoride wastewater. The national "Sewage Comprehensive Discharge Standard" stipulates that the concentration of fluoride ion is less than 10mg / L, the national "Petrochemical Industry Pollutant Discharge Standard" discharge limit is 20mg / L, and the maximum allowable concentration of fluorine in ground water is 1mg / L , Many places and factory direct discharge standards also stipulate that the fluoride ion concentra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/28C02F101/14
CPCC02F1/5245C02F1/5236C02F1/56C02F1/281C02F2101/14
Inventor 郑搏英张襄朱希坤崔秀菊丁海静张亮亮
Owner 神美科技有限公司
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