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Filtering medium used for eliminating iron ions in water and preparation method thereof and filter element made of the filtering medium

A filter medium and filter element technology, applied in the field of filter medium and its preparation, can solve the problems of easy clogging of filter material, frequent backwashing of filter material, unstable effluent quality, etc., and achieve the effect of no secondary pollution

Inactive Publication Date: 2008-02-20
QIDI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is only suitable for industrial water treatment, it is easy to block the filter material, and the filter material needs frequent backwashing, and generally only suitable for raw water with low iron content, and the quality of the effluent water is also unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Zeolite treatment process

[0030] Take 50 grams of clinoptilolite powder with a particle size between 140 and 200 meshes and 450 milliliters of 1 wt % hydrochloric acid into a glass stirrer, stir for 3 hours, neutralize with caustic alkali, filter out, boil in boiling water for 0.5 hours, use Wash twice with ion water, then dry at 120°C for 1 hour, heat at 450°C for 2 hours, and cool to room temperature.

Embodiment 2

[0032] Zeolite treatment process

[0033] Take 50 grams of clinoptilolite powder with a particle size between 230 and 325 meshes and 400 milliliters of 5 wt % hydrochloric acid into a mechanical stirrer, stir for 1.5 hours, neutralize with caustic alkali, filter out, boil in boiling water for 0.5 hours, use Wash twice with ion water, then dry at 120°C for 3 hours, heat at 450°C for 2 hours, and cool to room temperature.

Embodiment 3

[0035] Zeolite treatment process

[0036] Take 50 grams of clinoptilolite powder with a particle size between 230 and 325 meshes and 450 milliliters of 3 wt % hydrochloric acid into an enamel stirrer, stir for 100 minutes, neutralize with caustic alkali, filter out, boil in water for 3 hours, and use Washed twice with ion water, then dried at 110°C for 4 hours, heated at 420°C for 3 hours, and cooled to room temperature.

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PUM

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Abstract

The present invention relates to a filtering medium preparation method. The method comprises the steps as follows: evenly mix modified zeolete, ultra-high molecular weight polyethylene and the active carbon; sinter the mixture for 60 to 180 minutes under 180 DEG C to 280 DEG C; and then cool the mixture. The weight ratio of the mixture is as follows: active carbon: ultra-high molecular weight polyethylene: modified zeolete is equal to 20 percent to 45 percent: 50 percent to 75 percent: 1 percent to 10 percent. The filtering medium prepared by the above method can be made into filtering element. The filtering medium and the filtering element can be used for eliminating the iron ion in water. The present invention has the advantages of not only purifying the water quality, but also no secondary pollution and high efficiency of eliminating iron ion. By measurement, the iron ion eliminating efficiency of drinking water with the filtering element ranges from 80 percent to 95 percent.

Description

technical field [0001] The invention relates to a filter medium and a preparation method thereof, also relates to a filter element composed of the filter medium, and also relates to a method for removing iron ions in water by using the filter medium or the filter element of the invention. Background technique [0002] Iron is an essential trace element for human life. Iron deficiency in the human body can lead to anemia, decreased physical strength, and even induce various diseases. However, due to the current industrial wastewater discharge and environmental pollution, the iron content in water sources in many places is excessive or even exceeds the standard. Although iron is less toxic to humans and animals, when the concentration of iron compounds in water is 0.1-0.3 mg / L, it will affect the sensory indicators such as color, smell, and taste of water. If the iron ion content is too high, if you drink it for a long time, it will cause harm to human health. Excessive iron...

Claims

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Application Information

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IPC IPC(8): B01D39/20B01J20/16C02F1/28C02F1/64
Inventor 周奇迪栾云堂
Owner QIDI ELECTRIC GROUP