Method for producing high-efficient defluorination active micropore ceramic stuffing

Abstract

The invention discloses a method for preparing a microporous ceramic packing capable of removing fluorine activity with high efficiency, and relates to a method for preparing a water treatment material. The method comprises the following steps: 200 meshes of medical stone, 200 meshes of zeolite, 180 meshes of clay, and water are evenly mixed; the weight percentage of the raw materials is as follows: 30 to 35 percent of the medical stone, 50 to 55 percent of the zeolite, and 15 to 20 percent of the clay; the raw materials are extruded into particles with the size of between 1 and 3mm; the particles are roasted at a temperature of between 1,250 and 1,300 DEG C for 3 to 4 hours after being dried, and are boiled in caustic soda solution for 8 to 10 hours after being cooled down; the particlesare soaked in dilute sulfuric acid for 4 to 5 hours after being taken out, cleaned and neutralized; and then the particles are taken out, cleaned and dried. The packing has the advantages that the packing has low operating cost and a long service cycle and can be regenerated and reused through the treatments such as roasting, soda boiling, acid dipping, and the like after being used for a long time.

Description

technical field [0001] The invention belongs to a preparation method of a water treatment material, in particular to a preparation method of an active microporous ceramic filler capable of efficiently removing fluorine. Background technique [0002] Fluorine is a widely distributed element in the formation, which has a strong affinity and ore-forming ability. Differences in fluorine-containing mineral components and natural conditions in different regions lead to uneven regional distribution of fluorine. In areas with high fluorine content in water, fluorine greatly endangers the health of local people and is one of the serious endemic diseases in our country. If a kind of adsorption material with good fluoride removal effect and economical and practical can be produced, it will be a reasonable way to promote the use of fluoride removal in drinking water, and it will definitely play a positive role in the prevention and treatment of endemic fluorosis, especially for local d...

AI Technical Summary

Problems solved by technology

The disadvantage is that in order to increase the specific surface area and avoid the increase of water flow resistance caused by the excessive density of the supporting filter, the particle size of each material must be strictly controlled during the proportioning, especially the uniform mixing. In the actual use process, under the impact of water flow, It is unrealistic to keep the adsorbent in a uniformly mixed state all the time. The deviation of the components of the adsorbent during use causes some water flow to only pass through some of the components, which greatly reduces the defluoridation effect.