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Screw type filter assembly

A filter element and spiral technology, which is applied in the field of heavy metal non-eluting spiral filter elements, can solve safety problems and other problems, and achieve the effect of reducing the concentration of heavy metals

Pending Publication Date: 2021-10-22
TORAY ADVANCED MATERIALS KOREA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The separation membrane and flow channel of the above-mentioned spiral filter module may be formed in a spiral coiled form. In this case, the filter water flow channel using polyester fabric mainly includes polycondensation reaction using an antimony (Sb)-based catalyst. polyester fiber, such that long-term stagnation of filtered water elutes antimony, thus becoming a safety issue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Terephthalic acid (TPA, terephthalic acid) as an acid component compound and 1,4-butandiol (1,4-butandiol) as a diol component compound are mixed at a molar ratio of 1:1.5, with respect to 100 wt. parts, add 150 ppm of a titanium-based catalyst represented by the following chemical formula 2, perform an esterification reaction at a temperature of 270° C. and a pressure of 1200 torr, and then depressurize the pressure to 0.5 torr, and perform a polycondensation reaction at 270° C., thereby producing Core polyester resin with a melting point of 255°C.

[0102] chemical formula 2

[0103] (M 2 O) 0.01 (TiO 2 )[(CH 2 ) 8 OH] 20

[0104] Terephthalic acid (TPA, terephthalic acid) as an acid component compound and 1,2-ethylene glycol as a diol component compound were mixed at a molar ratio of 1:1, and the above chemical formula was added to 100 parts by weight of the above mixture. The catalyst represented by 2 is 150ppm, the esterification reaction is carried out at ...

Embodiment 2 to 9

[0107] Examples 2 to 9 and comparative examples

[0108] In the same manner as in Example 1, heavy metal non-eluting fabrics with different conditions as shown in Table 1 were produced.

[0109] Table 1

[0110]

[0111]

[0112] *Sb catalyst is antimony trioxide (Sb 2 o 3 ).

experiment example 1

[0114] Experimental Example 1: Strength Test

[0115] The bonding strength of warp-knitted fabrics manufactured according to Examples and Comparative Examples was measured. Specifically, prepare samples of the warp-knitted fabrics of Examples and Comparative Examples with a size of 100mm (L) × 20mm (W) × 10mm (D), and use a fiber tensile testing machine (UMT, Instron) ), it was measured 15 times with a tensile speed of 500mm / min. The average of 13 determinations except for the maximum value and the minimum value among the determination values ​​was analyzed to determine the bond strength value. This is shown in Table 2 below.

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Abstract

The present invention relates to a screw-type filter assembly, and more specifically, to a screw-type filter assembly which can be used as a safe filter for drinking water production by significantly reducing the elution amount of heavy metals when immersed in water.

Description

technical field [0001] The present invention relates to a heavy metal non-eluting screw filter unit, and more particularly to a screw filter unit that can be used as a filter for safe drinking water production by significantly reducing the amount of heavy metals eluted when immersed in water. Background technique [0002] With the development of water purification and sewage treatment technology, the direction of treatment technology has changed from the conventional sand filtration method to the membrane filtration method using the separation membrane. [0003] This separation membrane technology for water treatment is a high-separation filtration water treatment technology that almost completely separates and removes the substances to be treated in the treated water based on the size of the pores of the membrane, the distribution of the pores, and the charge on the surface of the membrane. [0004] The core part of this water treatment technology is the separation membrane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/44C02F101/20
CPCC02F2101/20C02F1/001C02F1/441C02F1/444C02F1/442D01F8/14D01D5/34C02F2101/22B01D69/106B01D71/48B01D63/10B01D69/125C02F1/44B01D2313/146B01D61/025B01D61/027B01D61/145B01D61/147B01D71/56C02F1/62D01F1/10B01D63/107B01D69/105B01D69/1071B01D69/1213B01D69/1216B01D2313/143B01D63/1031B01D69/107B01D71/481B01D2313/08
Inventor 赵成勤洪成杓
Owner TORAY ADVANCED MATERIALS KOREA
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