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Preparation formula of defluorination mineralizer and preparation method of preparation formula

A technology of mineralizers and formulations, applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc., can solve the problems of unreachable fluoride ion content, normal growth hazards of animals and plants, and water content in press filter sludge High efficiency and other problems, to achieve the effect of simple method, low cost, low moisture content of sludge

Inactive Publication Date: 2018-08-21
HUBEI HONGYUAN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production of fluorine-containing wastewater is accompanied by the development and production of fluorinated products. Excessive fluorine content in water will cause serious environmental pollution. Drinking or absorbing water with excessive fluorine content will cause harm to the normal growth of animals and plants, and even endanger life. healthy
After the fluorine-containing wastewater is treated by conventional methods, the fluoride ion content often cannot reach the level I discharge standard of 10 mg / L in the "Comprehensive Wastewater Discharge Standard (GB8978-1996)", and the solid particles formed are fine and difficult to precipitate and separate. Problems such as high moisture content of filter press sludge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0023] A defluoridation mineralizer formula, including the following raw materials in parts by weight: polyaluminum chloride (PAC) 40g, potassium chloride 10g, aluminum hydroxide 156g, sodium hydroxide 100g, sodium hypochlorite 5g, aluminum sulfate 5g, anionic poly Acrylamide (APAM) 15g, water 1L, triethanolamine 5ml / L, rare earth was added as a mixture solution at 0.001mol / L.

[0024] A kind of preparation method of defluoridation mineralization agent, concrete steps are:

[0025] (1) Weigh polyaluminum chloride, potassium chloride, aluminum hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, anionic polyacrylamide, water, triethanolamine, rare earth according to the weight fraction, and reserve;

[0026] (2) Add potassium chloride, aluminum hydroxide, and sodium hydroxide into water, boil at 95°C, and stir until completely dissolved;

[0027] (3) Add yttrium oxide to the mixed solution of concentrated nitric acid and hydrochloric acid, and heat to dissolve i...

Embodiment example 2

[0031] A defluoridation mineralizer formula, including the following raw materials in parts by weight: polyaluminum chloride (PAC) 100g, potassium chloride 150g, aluminum hydroxide 390g, sodium hydroxide 300g, sodium hypochlorite 15g, aluminum sulfate 10g, anionic poly Acrylamide (APAM) 50g, water 1L, triethanolamine 10ml / L, rare earth was added as a mixture solution at 0.001mol / L.

[0032] A kind of preparation method of defluoridation mineralization agent, concrete steps are:

[0033] (1) Weigh polyaluminum chloride, potassium chloride, aluminum hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, anionic polyacrylamide, water, triethanolamine, rare earth according to the weight fraction, and reserve;

[0034] (2) Add potassium chloride, aluminum hydroxide, and sodium hydroxide into water, boil at 130°C, and stir until completely dissolved;

[0035] (3) Add yttrium oxide to the mixed solution of concentrated nitric acid and hydrochloric acid, heat and dissolv...

Embodiment example 3

[0039] A defluoridation mineralizer formula, including the following raw materials in parts by weight: polyaluminum chloride (PAC) 60g, potassium chloride 50g, aluminum hydroxide 234g, sodium hydroxide 180g, sodium hypochlorite 8g, aluminum sulfate 6g, anionic poly Acrylamide (APAM) 25g, water 1L, triethanolamine 6ml / L, rare earth was added as a mixture solution at 0.001mol / L.

[0040] A kind of preparation method of defluoridation mineralization agent, concrete steps are:

[0041] (1) Weigh polyaluminum chloride, potassium chloride, aluminum hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, anionic polyacrylamide, water, triethanolamine, rare earth according to the weight fraction, and reserve;

[0042] (2) Add potassium chloride, aluminum hydroxide, and sodium hydroxide into water, boil at 110°C, and stir until completely dissolved;

[0043] (3) Add yttrium oxide to the mixed solution of concentrated nitric acid and hydrochloric acid, and heat to dissolve ...

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Abstract

The invention discloses a preparation formula of a defluorination mineralizer and a preparation method of the preparation formula. The preparation formula is applied to the fluoride wastewater mineralization treatment process. The defluorination mineralizer formula consists of the following components by weight: 40-100g of polymeric aluminum (PAC), 10-150g of potassium chloride, 156-390g of aluminum hydroxide, 100-300g of sodium hydroxide, 5-15g of sodium hypochlorite, 5-10g of aluminum sulfate, 15-50g of anionic polyacrylamide (APAM), 1L of water, 5-10ml / L triethanolamine, and rare earth as a0.001mol / L mixture solution. The defluorination mineralizer is applied to fluoride wastewater mineralization treatment, is low in treatment cost, simple in preparation method, free of toxin, rapid insludge sedimentation speed, low in sludge water content, possible in recycling and stable in effluent, in addition, the effluent can be as low as 4mg / L (by F), and the grade-I emission standard of 10mg / L in the Integrated Wastewater Discharge Standard (GB8978-1996) can be met.

Description

technical field [0001] The invention relates to a fluoride-removing mineralizer, in particular to a formula of a fluoride-removing mineralizer to be used in the deep defluoridation treatment process of fluorine-containing wastewater and a preparation method thereof. Background technique [0002] As one of the new chemical materials, fluorine chemical industry is known as the "gold industry". Fluorine-containing materials often have excellent properties such as high performance, high added value, high strength, corrosion resistance and insulation, and are widely used in military industry, national defense, chemical industry, machinery, etc. And other important fields, with a broad market space. [0003] The production of fluorine-containing wastewater is accompanied by the development and production of fluorinated products. Excessive fluorine content in water will cause serious environmental pollution. Drinking or absorbing water with excessive fluorine content will cause har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/52C02F1/42C02F1/28C02F1/58C02F101/14C02F101/10
CPCC02F1/281C02F1/285C02F1/42C02F1/5236C02F1/56C02F1/58C02F1/583C02F2001/007C02F2101/10C02F2101/105C02F2101/14
Inventor 尹国平金桥舒伟锋贾雪枫邓支华肖鹏
Owner HUBEI HONGYUAN PHARMA
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