Efficient humic acid fluorion adsorbent

Abstract

The invention discloses efficient humic acid fluorion adsorbent. The efficient humic acid fluorion adsorbent comprises, by weight part, 35 to 38 parts of humic acid, 4 to 5 parts of ferric chloride, 28 to 32 parts of aluminum chloride, 4 to 5 parts of manganese chloride, 68 to 72 parts of zirconium chloride, 7 to 10 parts of calcium chloride, 49 to 52 parts of mixed pulverized coal and 55 to 60 parts of sodium hydroxide solutions. The zirconium chloride, the ferric chloride, the aluminum chloride, the manganese chloride and the calcium chloride are sequentially dissolved in water to obtain an iron, aluminum, manganese, zirconium and calcium mixed solution; the humic acid is added to the sodium hydroxide solutions to obtain an alkaline sodium humate solution, the alkaline sodium humate solution is stirred and added to the iron, aluminum, manganese, zirconium and calcium mixed solution, and a PH (Potential Of Hydrogen) value is adjusted to filter to obtain solid mixture; the solid mixture is heated, pressed and dried after being washed to obtain humic acid metal complex; the mixed pulverized coal and the humic acid metal complex are stirred to obtain the efficient humic acid fluorion adsorbent. The efficient humic acid fluorion adsorbent has the advantages of being wide in raw material source, simple in preparation technology, high in adsorption capacity and high in defluorination efficiency and accordingly greatly reducing costs.

Description

technical field

[0001] The invention relates to the technical field of fluoride ion adsorption, in particular to an efficient humic acid fluoride ion adsorbent. Background technique

[0002] Fluorine is an essential trace element for the human body. An appropriate amount of fluorine can not only protect teeth, but also play an important role in the formation and metabolism of bones, reduce the incidence of dental caries, and also affect the excitatory conduction of the nervous system, calcium and phosphorus metabolism, and thyroid glands. Functional, cellular enzyme systems, and reproductive processes are all beneficial. However, long-term intake of excessive fluoride will produce various symptoms of fluorosis, which may lead to dental fluorosis, skeletal fluorosis, muscle fiber degeneration, and even bone cancer. Therefore, strictly controlling the intake of fluorine is of great significance to human health.

[0003] At present, the purification methods of high-fluorine w...