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Composite sintered filter element based on geological material and preparation method of filter element

A technology of sintered filter elements and geological materials, which is applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of high price and limited natural mineral water resources, and achieve easy backwashing and application Broad, geomaterial-rich effects

Active Publication Date: 2015-05-27
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural mineral water resources are limited, resulting in high prices, and the price of some bottled mineral water has reached more than 100 yuan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of the composite sintered filter element based on geological materials provided in this embodiment is as follows: 700g modified medical stone, 540g modified zeolite, 280g modified volcanic stone, 80g clay, 140g corn starch particles, 70g bentonite , Each of which is 15 g.

[0029] Mix the weighed raw materials, add 400g of water and stir, stir evenly and leave for half an hour;

[0030] Fill the agitated raw materials into a mold, press and shape them with a hydraulic press, and then air dry; put the air-dried raw materials into a hot-press sintering machine, sinter to 800°C, and cool to obtain a composite sintered filter element.

[0031] Through experiments, it is found that the content of Ca and Mg ions in the water purified by the composite sintered filter element based on geological materials provided in this embodiment is significantly reduced, from 111.5mg / l (close to hard water) to 82.15mg / l (close to soft water) (with CaCO3 Calculate), effectiv...

Embodiment 2

[0033] The preparation method of the composite sintered filter element based on geological materials provided in this example is as follows: 750g of modified medical stone, 540g of modified zeolite, 180g of modified volcanic stone, 70g of clay, 90g of corn starch particles, and 40g of bentonite , Each of which is 10 g.

[0034] Mix the weighed raw materials, add 350g of water and stir, stir evenly and leave it for half an hour;

[0035] Fill the agitated raw materials into a mold, press and shape them with a hydraulic press, and then air dry; put the air-dried raw materials into a hot-press sintering machine, sinter to 840°C, and cool to obtain a composite sintered filter element.

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Abstract

The invention provides a composite sintered filter element based on a geological material. The filter element consists of the following components in parts by mass: 20-80 parts of modified medical stone, 12-60 parts of modified zeolite, 5-20 parts of modified lava, 4-8 parts of china clay, 3-10 parts of corn starch granules and 2-5 parts of bentonite. The invention also provides a method for preparing the composite sintered filter element. The method comprises the following steps: dosing, mixing raw materials, molding and firing. According to the composite sintered filter element provided by the invention, the pollutants such as TN, TP, residual chlorine, rust, bacteria and heavy metals in the water body can be removed under the condition that the natural water molecule structure is not damaged, and specific elements beneficial to the human body are released.

Description

Technical field [0001] The invention provides a composite sintered filter element based on geological materials and a manufacturing method thereof, which are used for drinking water quality treatment and belong to the field of water purification research. Background technique [0002] In recent years, water pollution in my country has become increasingly serious. According to survey data, my country’s residential areas with 250 million residents are close to key sewage companies and major traffic roads, and 280 million residents use unsafe drinking water. With the continuous improvement of people's health concepts, the water quality requirements for drinking water are getting higher and higher. However, most of the water treatment plants currently have backward treatment processes, and the tap water produced is of extremely low standard water; even part of the tap water that meets the standard will cause secondary pollution in the water pipeline network and high-rise water tower...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28
CPCB01J20/103B01J20/12B01J20/16B01J20/165B01J20/24C02F1/288C02F2101/105C02F2101/16C02F2101/20
Inventor 彭浩范奇王宗星夏新星李秀文罗红雪
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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