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

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...

Examples

Embodiment Construction

[0041] The present invention will be further described below in conjunction with embodiment.

[0042] A kind of filter material preparation process that is used to reduce fluoride to improve water, its step is,

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

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

[0045] (3) put into the hydrochloric acid of 30% concentration after being put into after roasting for 18-24 hours, carry out acid treatment, preferably 20 hours; It reaches the following pu...

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...

Examples

Embodiment Construction

[0041] The present invention will be further described below in conjunction with embodiment.

[0042] A kind of filter material preparation process that is used to reduce fluoride to improve water, its step is,

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

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

[0045] (3) put into the hydrochloric acid of 30% concentration after being put into after roasting for 18-24 hours, carry out acid treatment, preferably 20 hours; It reaches the following pu...