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Material for purication anion polluted water

A purification material and anion technology, applied in the direction of ion exchange water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of high price, limited application, difficult fluoride ion, etc.

Inactive Publication Date: 2006-09-13
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The better ones are activated alumina and activated carbon, but the defluoridation effect is affected by the fluorine content of the particles and water. It is difficult to completely remove fluoride ions in water by physical surface adsorption, and the price is also relatively expensive. , the application is limited

Method used

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  • Material for purication anion polluted water
  • Material for purication anion polluted water
  • Material for purication anion polluted water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) 246g (1.6mol) of Mg(NO 3 ) 2 and 85g (0.4mol) of Al(NO 3 ) 3 Disperse in 0.36L (20mol) of water.

[0024] (2) 128g (3.2mol) of NaOH and 35g (0.4mol) of NaNO 3 Evenly dispersed in 0.36L (20mol) of water. The solution obtained in (2) was quickly added into the solution of (1), and the stirring was continued for 120 hours. The obtained solution was suction-filtered at normal temperature to obtain a white powder, which was washed with water and dried at 50°C to obtain a white composite material.

[0025] like figure 1 As shown, it can be seen from the X-ray diffraction spectrum that the characteristic diffraction peak of the composite material is 2θ=11.7°, and three characteristic diffraction peaks with relatively high diffraction intensity appear, corresponding to the interlayer spacing d003 and two advanced reflections d006 , d009, the composite material presents an obvious layered structure. For the interlayer distance d003 of 0.756nm, the thickness of the la...

Embodiment 2

[0029] (1) 246g (1.6mol) of Mg(NO 3 ) 2 and 113.5g (0.533mol) of Al(NO 3 ) 3 Disperse in 0.36L (20mol) of water.

[0030] (2) 128g (3.2mol) of NaOH and 48g (0.533mol) of NaNO 3Evenly dispersed in 0.36L (20mol) of water. The solution obtained in (2) was quickly added to the solution of (1), and the stirring was continued for 120d. The obtained solution was suction-filtered at normal temperature to obtain a white powder, which was washed with water and dried at 50° C. to obtain a white composite material.

[0031] X-ray diffraction, SEM and TEM analysis are consistent with the results in Example 1. ICP elemental analysis shows that the compound contains 26.7% of magnesium, 10% of aluminum, 53.3% of oxygen, 2.2% of hydrogen and 5.2% of nitrogen in the substance content of the compound. It is basically consistent with the theoretical calculation, and also contains a very small amount of water and trace impurities.

Embodiment 3

[0033] (1) 246g (1.6mol) of Mg(NO 3 ) 2 and 170g (0.80mol) of Al(NO 3 ) 3 Disperse in 0.36L (20mol) of water.

[0034] (2) 128g (3.2mol) of NaOH and 70g (0.80mol) of NaNO 3 Evenly dispersed in 0.36L (20mol) of water. The solution obtained in (2) was quickly added to the solution of (1), and the stirring was continued for 144 hours. The obtained solution was suction-filtered at normal temperature to obtain a white powder, which was washed with water and dried at 50° C. to obtain a white composite material.

[0035] X-ray diffraction, SEM and TEM analysis are consistent with the results in Example 1. ICP elemental analysis shows that the compound contains 26.6% of magnesium, 15% of aluminum, 44.4% of oxygen, 1.1% of hydrogen and 7.8% of nitrogen in the substance content of the compound. It is basically consistent with the theoretical calculation.

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Abstract

A laminar material for cleaning the anion-polluted water by removing the anions (F ions, arsenous radicals, or arsenic radicals) is prepared through proportionally dissolving Mg (or Zn) source and Al source in water, dissolving alkali and anions in water, quickly mixing them, stirring for 48-144 hr, pump filtering, water washing and baking to obtain white powder.

Description

technical field [0001] The invention belongs to the technical field of polluted water purification materials, and in particular relates to a bimetallic layered anion polluted water purification material with cation laminates, which can effectively treat anions in polluted water, such as fluoride ions, arsenite and arsenate ions. Good removal. technical background [0002] In recent years, with the development of the economy and the progress of industry and agriculture, it has brought about the destruction of the living environment of human beings and the destruction of nature. The by-products accompanying the production and use of various products have caused serious environmental pollution. The pollution of fresh water resources that human beings depend on is also increasing day by day. Among water pollution, arsenic pollution has attracted widespread attention. The main form of arsenic in water is arsenite ion (AsO 3 3- ) and arsenate ion (AsO 4 3- ). At the surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/42C02F1/58
Inventor 朱广山裘式纶陈丽华
Owner JILIN UNIV
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