Filter media for removing methyl tert-butyl ether in water and preparation method thereof

A kind of technology of methyl tertiary butyl ether and filter medium, applied in the field of water treatment, can solve the problems of difficult operation, cumbersome process and the like

Inactive Publication Date: 2011-11-16
QIDI ELECTRIC GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, the water treatment methods reported above all have t

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  • Filter media for removing methyl tert-butyl ether in water and preparation method thereof

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[0020] The invention discloses a preparation method of a filter medium for removing methyl tert-butyl ether in water, comprising the following steps:

[0021] The mixture is molded in a molding machine, then sintered at 150-250° C. for 30-100 minutes, cooled and demolded to obtain a filter medium, and the mixture includes 250-500 parts by weight of ultra-high molecular weight polyethylene, 300-500 Parts by weight of wood activated carbon adsorbed with phenol, 10-50 parts by weight of a pore forming agent and 200-350 parts by weight of limestone particles coated with iron oxyhydroxide, the weight average molecular weight of the ultra-high molecular weight polyethylene is 480 Ten thousand to eight million.

[0022] In the present invention, the density of the ultra-high molecular weight polyethylene (UHMW-PE) is preferably 0.936-0.964 g / cm 3 The heat distortion temperature is preferably 85°C; the melting point is preferably 130-136°C, more preferably 132-135°C, and the ultra-hi...

Embodiment 1

[0038] Add 400 milliliters of limestone particles with a particle size of 150 to 400 microns into the reactor, then add 400 milliliters of deionized water, and add 800 milliliters of 40 wt% ferric chloride solution within 15 minutes, and after 40 minutes of reaction, pour into the reactor Add 1500ml 8wt% NaHCO 3 , then add NaOH, stir for 15 minutes, control the pH value of 3 to 8, wash until the pH value of the washing liquid is 7.1, and then dry in an oven at 110° C. for 50 hours to obtain limestone particles coated with iron oxyhydroxide on the surface. The iron content of the limestone particles coated with iron oxyhydroxide on the surface is 10wt%, and the average thickness of the iron oxyhydroxide is 25 μm;

[0039] Weigh 250g of ultra-high molecular weight polyethylene (UHMW-PE) with a molecular weight of 5.5 million, 500g of medical wood activated carbon with a particle size of 60 mesh, 10g of food-grade ammonium bicarbonate and 280g of limestone particles coated with i...

Embodiment 2

[0041] Add 400 milliliters of limestone particles with a particle size of 150 to 400 microns into the reactor, then add 400 milliliters of deionized water, and add 800 milliliters of 40 wt% ferric chloride solution within 15 minutes, and after 40 minutes of reaction, pour into the reactor Add 1500ml 8wt% NaHCO 3 , then add NaOH, stir for 15 minutes, control the pH value of 3 to 8, wash until the pH value of the washing liquid is 7.1, and then dry in an oven at 110° C. for 50 hours to obtain limestone particles coated with iron oxyhydroxide on the surface. The iron content of the limestone particles coated with iron oxyhydroxide on the surface is 10wt%, and the average thickness of the iron oxyhydroxide is 25 μm;

[0042] Weigh 500g of ultra-high molecular weight polyethylene (UHMW-PE) with a molecular weight of 6 million, 350g of medical wood activated carbon with a particle size of 100 mesh, 30g of food-grade ammonium bicarbonate and 350g of limestone particles coated with ir...

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Abstract

The invention discloses filter media for removing methyl tert-butyl ether in water, a preparation method thereof and a filter core prepared by the filter media. The preparation method provided by the invention comprises the following steps of: displacing a mixture into a mould pressing machine for mould pressing, sintering at the temperature of 150-250 DEG C for 30-100 minutes, cooling and demoulding to obtain the filter media, wherein the mixture contains, by weight, 250-500 parts of ultrahigh molecular weight polyethylene, 300-500 parts of phenol-absorbed wood-based activated carbon, 10-50 parts of a gas generation agent, and 200-350 parts of limestone particles with ferric oxyhydroxide coated on the surface. The ultrahigh molecular weight polyethylene, the phenol-adsorbed wood-based activated carbon and the limestone particles with ferric oxyhydroxide coated on the surface all have a strong adsorption to methyl tert-butyl ether. Therefore, by the cooperation of the above raw materials, the filter core prepared by the filter media can effectively remove methyl tert-butyl ether in water to be processed.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a filter medium for removing methyl tert-butyl ether in water, a preparation method thereof and a filter element made of the filter medium. Background technique [0002] Methyl tert-butyl ether (MTBE for short) is an ether oxygen-containing compound and an additive for unleaded gasoline. It has excellent anti-knock properties and is mainly used to improve the performance of gasoline and promote the complete combustion of gasoline. Since the 1960s, due to the huge harm of leaded gasoline to human health and the environment, environmentalists have increasingly been opposed. Therefore, as a substitute for lead salts such as tetraethyl lead, MTBE has gradually gained popularity due to its excellent performance. Wide range of applications. [0003] However, with the increase of the amount of MTBE added in gasoline, a large amount of MTBE enters the environment that people dep...

Claims

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Application Information

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IPC IPC(8): B01D39/14C02F1/00C02F1/28C02F101/34
Inventor 周奇迪栾云堂
Owner QIDI ELECTRIC GROUP
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