Process of preparing filter material for reducing fluoride content and improving water quality

A preparation process and filter material technology, which are applied in the field of filter material preparation technology for reducing fluoride and changing water, can solve the problems of difficulty in effectively achieving the purpose of reducing fluoride and changing water, high process cost, unsatisfactory effect, etc., and are convenient for popularization, application and processing. Simple process, obvious effect

Inactive Publication Date: 2007-12-19
山东乾天工贸有限公司 +1
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Problems solved by technology

[0013] The purpose of the present invention is to solve the problems of high cost of filter materials and processes for reducing fluoride and improving water, unsatisfactory effect, and difficulty in effectively achieving the purpose of reducing fluoride and impro

Method used

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Example Embodiment

[0041] In the following, the present invention will be further described in conjunction with the embodiments.

[0042] A process for preparing a filter material for reducing fluoride to water. Its steps are:

[0043] (1) It uses natural zeolite as raw material, and after selection, it is crushed to 5-8 mesh;

[0044] (2) The crushed raw materials are roasted at a high temperature, the temperature is 900-1000°C, and the time is 3-4 hours, preferably at 950°C, and the time is 3 hours; the selected natural zeolite raw materials are roasted at high temperature , Its purpose is to remove organic substances in the pores and channels of the zeolite, and to control the roasting conditions and time to maximize the adsorption capacity of the zeolite for water after roasting.

[0045] (3) After the roasted material is cooled, put it in 30% hydrochloric acid for 18-24 hours, and carry out acid treatment, preferably 20 hours; it achieves the following purpose: remove the SiO from the pores and...

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Abstract

The present invention is process of preparing filter material for reducing fluoride content and improving water quality, and the filter material has the advantages of simple preparation process, simple use, low cost, high fluoride content reducing effect and other advantages. The process includes the following steps: sorting natural zeolite material and crushing to 5-8 mesh; high temperature roasting at 900-1000 deg.c for 3-4 hr; cooling and treating in 30 % concentration hydrochloric acid for 18-24 hr; washing and soaking in inorganic salt solution for 12-24 hr; flushing and soaking in sodium health solution for 10-30 hr; flushing and soaking in 1-5 % concentration alum solution for 10-16 hr to activate; acid-alkali balancing; drying and water maintaining treatment to obtain the product.

Description

technical field [0001] The invention relates to a filter material for reducing the fluorine content in water, in particular to a preparation process of the filter material for improving water by reducing fluorine. Background technique [0002] Fluorine is a relatively active physiological element in the human body, which can inhibit or stimulate the activity of certain enzymes. Most fluoride exists in hard tissues, but excessive fluoride can cause fluorosis. Endemic fluorosis is a chronic poisoning disease caused by people living in this environment under the influence of specific geological and geographical conditions in fluorine-rich areas and drinking water for a long time that exceeds the physiological requirement. Clinically, the main manifestations are dental fluorosis and skeletal fluorosis, which are endemic diseases that seriously endanger human health. Therefore, high fluoride water needs to be defluoridated. [0003] At present, the commonly used methods of redu...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/16C02F1/28C02F1/58
Inventor 李寿山
Owner 山东乾天工贸有限公司
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