Application of feather nonwoven material in adsorption of heavy metal ion in water phase medium

A technology of non-woven materials and heavy metal ions, which is applied in the fields of adsorption water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc. , large discreteness and other problems, to achieve the effects of low cost, pollution prevention and reduction of waste

Inactive Publication Date: 2009-03-18
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the feathers are miscellaneous, flaky, and silky. The feathers are soft, slippery, loose, and loose, and they fly at the touch of a touch. Difficulty, now only in the experimental stage, the feasibility of scale production is less, and the special physical properties of feathers make it difficult to spin into fabrics, the present invention selects the feather non-woven material produced by non-woven technology (the applicant has Submit a patent) to absorb harmful ions such as heavy metals in waste water and sewage for pollution prevention and control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Examples of adsorption of copper ions on feather nonwovens at different temperatures. Take five 800mL beakers, numbered 1, 2, 3, 4, 5, weigh 2g of copper sulfate pentahydrate in each beaker, dissolve it fully with a small amount of water, pour it into a 250mL volumetric flask, add distilled water to the mark, and The initial concentration of adsorbed copper ions was 8mmol / l, and then all were transferred into the beaker. Each takes 5g feather nonwoven material (feather content is 2.5g) as adsorbent, fully immerses in the beaker solution, adjusts the pH value to 11 with buffer solution NH3-NH4Cl, and the experimental temperature is controlled to be 20, 30 successively in the water bath, After 30 minutes at 40, 50, and 60°C, measure the concentration of copper ions with a spectrophotometer and record the data.

[0023] Experimental results:

[0024] temperature(℃) 20 30 40 50 60 Adsorbed ion amount (mg / L) 127 212 218 148 115

[0025] Accordi...

Embodiment 2

[0027] Examples of adsorption of copper ions on feather nonwovens at different experimental times. Take an 800mL beaker, weigh 2g of copper sulfate pentahydrate, put it in the beaker and dissolve it fully with a small amount of water, pour it into a 250mL volumetric flask, add distilled water to the mark, so that the initial concentration of the absorbed copper ions is 8mmol / L, and then all Transfer to beaker. Weigh 5g of feather nonwoven material (feather content is 2.5g) as adsorbent, fully immerse in the beaker solution, adjust the pH value to 11 with buffer solution NH3-NH4Cl, and conduct the experiment at room temperature 20°C. The change of solution concentration was recorded with a spectrophotometer every 10 min.

[0028] Experimental results:

[0029] time (min) 0 10 20 30 40 50 60 70 80 90 100 200 Adsorbed copper ion amount (mg / L) 0 61 86 127 142 165 187 211 236 247 249 259

[0030] The selected initial concentration is 8m...

Embodiment 3

[0032] Examples of adsorption of copper ions on feather nonwovens at different pH values. Take four 800mL beakers, numbered 1, 2, 3, 4, weigh 2g of copper sulfate pentahydrate in each beaker, dissolve it fully with a small amount of water, pour it into a 250mL volumetric flask, add distilled water to the mark, and it will be absorbed The initial concentration of copper ions is 8mmol / L, and then all are transferred into the beaker. Each weighed 5g of feather non-woven material (feather content is 2.5g) as adsorbent, fully immersed in the beaker solution, and carried out the experiment at room temperature 20°C, and adjusted the pH with buffer solution hydrochloric acid (adjusting acidity) and NH3-NH4Cl (adjusting alkalinity) After the values ​​are 3.5, 5, 9, 11, and 90 min, measure the copper ion concentration with a spectrophotometer and record the data.

[0033] Experimental results:

[0034] pH 3.5 5 9 11 Adsorbed copper ion amount (mg / L) 74 120 223 2...

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PUM

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Abstract

The invention relates to an application of a feather nonwoven material for adsorbing heavy metal ions in an aqueous phase medium, which comprises the steps: in a water-bath environment at a temperature of 20 DEG C to 60 DEG C, 2g to 6g of feather nonwoven material is taken as an adsorbing agent and immersed in 250mL of 2 to 10mmol / Lheavy metal copper iron solution; the pH value of the solution is adjusted to be 3.5 to 11; after 0 to 200min, an ultraviolet spectrophotometer is finally used for measuring the concentration of the ions; the optimal adsorbing conditions are as follows: adsorbing temperature is 40 DEG C; adsorbing time is 90min, pH value is 11; the initial concentration of the copper ions is 10mmol / L; the weight of the feather adsorbing material is 6g. The application is safe and highly efficient, has extremely good adsorbing effect on the copper ions in waste water and sewage, can prevent pollution, has the wide material sources and low cost and can enlarge the utilization field of feather and reduce waste.

Description

technical field [0001] The invention belongs to the application field of nonwoven materials, in particular to the application of feather nonwoven materials in absorbing heavy metal ions in water phase media. Background technique [0002] In recent years, heavy metals contained in sewage and wastewater have become more and more serious environmental problems. Studies have shown that low concentrations of heavy metals can also endanger human health. Toxic metal ions such as copper ions can invalidate active proteins in the body, and can also cause skin damage. Itching and inflammation, while copper ions exist in a large amount of industrial and domestic wastewater, which will leak into natural water bodies without treatment, which will cause water pollution, endanger the survival of organisms in the environment, and greatly endanger people's health. Due to the hazards of heavy metals such as copper, all sewage and wastewater must remove or reduce the concentration of heavy met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/62
Inventor 刘莲俞镇慌
Owner DONGHUA UNIV
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