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Nano crystallite composite filter material and supplement of manufacture method thereof

A composite filter material and nano-crystal technology, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of non-regeneration, high cost, and single function, and achieve low price, wide application, and low energy consumption Effect

Active Publication Date: 2009-04-29
傅成义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems or defects of existing filter materials in water treatment projects such as single function, low effect, inability to regenerate, high cost, etc. Low-cost, multi-purpose, high-efficiency nano-microcrystalline composite filter material for water reuse and sewage treatment, including its manufacturing method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The basic nano-microcrystalline composite filter material for advanced drinking water filter material is characterized by attapulgite clay or sepiolite with an equal weight ratio of 70% by weight, and the dosage of attapulgite and sepiolite clay can be replaced by each other, 20 % by weight of diatomite, 10% by weight of expanded perlite. After fully mixing, add water glass solution as a binder, and roll and granulate in rolling granulation equipment. After aging for 24 hours, it is sent to the kiln for roasting and activation. The heating curve is to raise the temperature to 150°C and keep the temperature for 30 minutes, and then heat to 500°C and keep the temperature for 2 hours.

[0029] In this example, attapulgite clay is partially or completely replaced by sepiolite clay, because the properties, crystal structure and composition of the two are very similar. Such substitutions will not alter product performance. Expanded perlite is added to the water-permeable m...

Embodiment 2

[0031] The water quality improving agent nano-microcrystalline composite filter material is characterized by 30% by weight of attapulgite clay, 20% by weight of natural zeolite, 20% by weight of pillared montmorillonite, and 20% by weight of expanded vermiculite , 10% diatomaceous earth by weight. Add binder and roll to granulate, and activate by roasting at 500°C.

[0032]The characteristic of this example is that zeolite, pillared montmorillonite, and expanded vermiculite are added in a large proportion, so the cation exchangeability of the material is greatly enhanced. It is used for special purposes such as water softening and ion exchange.

Embodiment 3

[0034] The drinking water purification agent nano-microcrystalline composite filter material is characterized in that the weight ratio is 50% of attapulgite clay, 25% of diatomite and 25% of bamboo charcoal debris or bamboo debris raw materials, fully mixed and added The water glass solution is used as a binder, and is rolled and granulated in the rolling granulation equipment. After aging for 24 hours, it is sent to the kiln for roasting and activation. The heating curve is to raise the temperature to 150°C and keep the temperature for 30 minutes, start to pass inert gas, heat to 500°C and keep the temperature for 2 hours, stop the inert gas protection when the temperature is below 120°C, and cool down to room temperature naturally.

[0035] In this example, bamboo charcoal or bamboo chips are introduced instead of activated carbon powder, and the effect is basically the same. The filter material made of bamboo chips has higher porosity, thus reducing the amount of diatomaceo...

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Abstract

The invention extends the connotation range required to be protected on the basis of a previously issued patent ZL200710025045.4, i.e., a nanometer microcrystalline composite filter material and a preparation method thereof, belonging to the field of a water disposal technique material. According to weight percentage, the nanometer microcrystalline composite filter material comprises 3-95 percent of attapulgite clay, 5-80 percent of sepiolite clay, 2-25 percent of kaolinite clay, 2-97 percent of tubular halloysite, 5-75 percent of diatomite, 5-75 percent of natural zeolite (clinoptilolite, mordenite and the like), 0-25 percent of pillared montmorillonite, 0-50 percent of expanded vermiculite, 0-5 percent of expanded perlite and 0-50 percent of active carbon or bamboo carbon powders. All raw materials which are powder shapes are mixed according to proportion and stirred to granulate by adding an inorganic adhesive, then sintered and activated at the temperature of 900-500 DEG C (inert gas is required for sintering and activating the filter material added with active carbon). The nanometer microcrystalline composite filter material has smooth shape, rough surface and uniform particle size, with the diameter of 1-10mm, and is used for biological filter tanks and high-class adsorption filter materials in deep purification systems of drinking water and reclaimed water sewage disposal systems.

Description

technical field [0001] The invention relates to a multipurpose adsorption filter material for water treatment. According to the raw water quality status and target water quality standards, it is suitable for deep purification of drinking water, reclaimed water reuse adsorption and biological filter treatment of sewage. The water quality treated by the invention can improve the water body quality and reach the standard of drinking, discharge or reuse. Background technique [0002] In the natural ecological environment, the quality of water flowing through glaciers, wetlands, lakes, rivers, and even underground has always maintained a clean state on its long way to the sea. The interaction of rocks, soil and plants with water plays a key role. The water purification function of the aluminosilicate minerals with nano-microporous structure and the attached plants is the key to the effect. More importantly, this effect is effective at the same time as the earth itself, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/06
Inventor 徐正农傅成义
Owner 傅成义
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