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Composite absorbing material for removing iron ions from natural water body and preparation method thereof

A composite adsorption material and iron ion technology, which is applied in the field of sewage purification and treatment in environmental protection, can solve the problems of high cost and limited scope of application, and achieve the effects of large processing capacity, wide application scope and cost reduction

Inactive Publication Date: 2013-01-16
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a squid ink melanin-macroporous cellulose microsphere composite adsorption material to efficiently treat natural water bodies in view of the high cost and limited scope of application of the second method mentioned in the technical background. New ideas for iron ions in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Take 30g of dry medical absorbent cotton, immerse in 80mL NaOH solution for alkalization for 2h, squeeze out the alkali solution and age at 25°C, add 10gCS to the aged alkali cotton 2 React in a water bath shaker at 25°C for 50 minutes to prepare viscose, add 30mL of 6% NaOH solution to the obtained viscose for dilution, then add 3g of calcium carbonate particles and stir to mix evenly; take 20g of the above viscose and 180g of oil Potassium acid potassium was added to the transformer oil, stirred and dispersed evenly at room temperature, the temperature was raised to 90°C at a rate of 2°C / min, 1mol / L, 40mL of HCl was added, and stirring was continued for 2 hours. After the reaction, the mixture was filtered. Repeatedly wash twice with distilled water, and obtain 100-mesh medium after sieving, and then obtain macroporous cellulose microspheres; weigh 15 g of the macroporous cellulose microspheres prepared above, add 15 mL of epichlorohydrin and 30 mL of 3 mol / L NaOH sol...

example 2

[0030] Take 40g of dry medical absorbent cotton, immerse in 80mL NaOH solution for alkalization for 3h, squeeze out the alkali solution and age at 35°C, add 15gCS to the aged alkali cotton 2Prepare the viscose solution by reacting in a water bath shaker at 25°C for 60 minutes, add 40mL of 6% NaOH solution to the obtained viscose solution to dilute, then add 5g of calcium carbonate particles and stir and mix evenly; take 20g of the above viscose solution and 180g of oil Potassium acid potassium was added to the transformer oil together. After stirring and dispersing evenly at room temperature, the temperature was raised to 90°C at a rate of 2°C / min, and 50mL of 1mol / L HCl was added, and the stirring reaction was continued for 3h. After the reaction was completed, the mixture was filtered and used Repeated washing with distilled water for 3 times, sieving to obtain 200-mesh medium, that is, macroporous cellulose microspheres; weigh 15 g of the macroporous cellulose microspheres p...

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PUM

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Abstract

The invention relates to a preparation method of an abalone melanin-macroporous cellulose microballoon composite absorbing material and a particular application method of the composite absorbing material, and solves the processing problem of iron ions in natural water. Macroporous cellulose microballoons modified by glycine are combined with abalone melanin by dentates to form the composite absorbing material with high adsorbing capacity on the iron ions. The practical application method comprises the steps that 5-10g composite absorbing material is added to 500mL sewage with an iron ion concentration of 2000mg / L, the pH is adjusted to 3.5-5.5, the composite absorbing material is taken out after an oscillating reaction for two hours, the iron ion concentration in the treated sewage is measured to be below 1.0mg / l, the absorbing efficiency reaches above 99.5%, and effluent reaches a standard stably. The composite absorbing material has the characteristics of high absorbing efficiency, wide application scope, small feeding quantity, large treating capacity, no secondary pollution and the like.

Description

technical field [0001] The invention relates to a composite adsorption material for removing iron ions in natural water bodies and a preparation method thereof, specifically relates to the treatment of sewage containing iron ions, and belongs to the field of sewage purification and treatment in environmental protection. Background technique [0002] Iron ions are widely present in various industrial wastewaters, including mining operations, powder mining, chemical industry, dye industry, metal processing, weaving mills, petroleum refining, etc. The presence of iron ions in water can have a great impact on all aspects of human life. In terms of life, it will cause iron smell, leave yellow spots on white fabrics and utensils, and yellow sanitary utensils. In severe cases, tap water will become "red water"; in industry, when iron ions are used as detergents or raw materials for production Reduce the gloss and color of the product; in addition, it will also cause blockage of wa...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/64
Inventor 雷春生高玉梅雷思宇
Owner CHANGZHOU UNIV
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