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Modified red stilbite water cleaning agent

A technology of hematilite and water purifying agent, which is applied in the field of modified hematilite water purifying agent, which can solve the problems of poor purification effect of domestic sewage and achieve the effects of large reserves, simple production process and low price

Active Publication Date: 2005-09-28
CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The natural zeolites currently used to prepare water purification materials are mostly modified with clinoptilolite, mordenite, and chabazite as raw materials to prepare various water purification materials. The Chinese invention patent of "Water Agent" discloses a purifying agent that can purify drinking water. It is made of clinoptilolite as a raw material. It has a large surface area and strong adsorption capacity. It can not only effectively defluoride, iron, decolorize and deodorize, but also soften hard water. However, this purifier is only suitable for purifying drinking water and has no effect on domestic sewage. good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 1) Pulverize the hematilite to 20 orders, and mix it with magnesium chloride and aluminum chloride; wherein the mass ratio of the hematilite, magnesium chloride and aluminum chloride is 2:1:1;

[0012] 2) Add sodium hydroxide solution to the above mixture, adjust its pH value to 6-8, and make the mixture into a colloidal state;

[0013] 3) Dry the obtained mixture at 80°C, and then crystallize at 240°C for 1 hour to obtain the modified hematilite water purifier.

Embodiment 2

[0015] 1) Pulverize the hematilite to 60 orders, and mix it with magnesium chloride and aluminum chloride; wherein the mass ratio of the hematite, magnesium chloride and aluminum chloride is 2: 3: 2;

[0016] 2) Add potassium hydroxide solution to the above mixture, adjust its pH value to 6-8, and make the mixture into a colloidal state;

[0017] 3) Dry the obtained mixture at 100°C, and then crystallize at 300°C for 1.5 hours to obtain the modified staphilite water purifier.

Embodiment 3

[0019] 1) Pulverize the hematilite to 40 orders, and mix it with magnesium oxide and aluminum sulfate; wherein the mass ratio of the hematilite, magnesium oxide and aluminum sulfate is 2: 2: 1;

[0020] 2) Add sodium hydroxide solution to the above mixture, adjust its pH value to 6-8, and make the mixture into a colloidal state;

[0021] 3) Dry the obtained mixture at 90°C, and then crystallize at 270°C for 3 hours to obtain the modified hematilite water purifier.

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PUM

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Abstract

The present invention discloses one kind of modified red stilbite water cleaning agent. The water cleaning agent is produced through the following steps: crushing red stilbite and mixing with Mg containing compound and Al containing compound; adding alkali solution into the mixture to obtain mixture colloid of pH 6-8; and drying and crystallizing the mixture to obtain the modified red stilbite water cleaning agent. The modified red stilbite water cleaning agent is used in treating domestic sewage and has COD eliminating rate higher than 75 %, toxic matter Cr ion eliminating rate higher than 95 %, being 2 times and 8 times higher compared with un-modified red stilbite water cleaning agent.

Description

(1) Technical field: [0001] The invention relates to a water purifying agent, in particular to a modified hematilite water purifying agent. (two) background technology: [0002] Water is an indispensable material resource in human life and production activities. In recent years, with the rapid development of the economy, the water source pollution caused by industrial sewage discharge and urban domestic sewage discharge has become more and more serious, which has gradually threatened people's health and ecological balance, so how to better improve the quality and purification of water sources Sewage has become an urgent problem to be solved. It is an effective and quick way to purify water quality through the reaction of water purifiers with pollutants in water sources, and it is also an important way to purify water quality. At present, people have developed various types of purifiers, which are used to remove substances and impurities harmful to the human body and the en...

Claims

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Application Information

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IPC IPC(8): C02F1/28
Inventor 徐文炘张静肖筱瑜李蘅李毅
Owner CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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