Heavy metal ion adsorber

Abstract

The invention discloses a heavy metal ion adsorber. A first adsorption layer and a second adsorption layer are successively arranged from outside to inside in the length direction of the adsorber, thefirst adsorption layer is an iron carbonyl-vermiculite composite material, the second adsorption layer is a nano-zinc oxide composite porous resin material, and the distance between the first adsorption layer and the second adsorption layer is 30-50 cm. According to the heavy metal ion adsorber, through selection of the internal structure and an adsorption material of the adsorber, the adsorptionrate of heavy metal ions can be effectively improved, and the effective removal rate of the heavy metal ions is ensured.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a heavy metal ion adsorber. Background technique [0002] Heavy metals originally refer to metals with a specific gravity greater than 5 (metals with a density greater than 4.5 grams per cubic centimeter), including gold, silver, copper, iron, lead, etc. Heavy metal pollution is different from pollution from other organic compounds. Many organic compounds can reduce or eliminate their harmfulness through physical, chemical or biological purification of nature itself. Heavy metals are enriched and difficult to degrade in the environment. [0003] At present, due to the mining, smelting, and processing of heavy metals in China, many heavy metals such as lead, mercury, cadmium, and cobalt enter the atmosphere, water, and soil, causing serious environmental pollution. For example, heavy metals discharged with wastewater, even if the concentration is small, can accumulate ...

AI Technical Summary

Problems solved by technology

[0005] The current arsenic-containing wastewater treatment technologies include chemical precipitation method, physical and chemical method, activated sludge treatment method, etc. Chemical precipitation method is currently the main method for arsenic-containing wastewater treatment. Many industries use this method to treat arsenic-containing wastewater. It is calcium salt and The combination of iron and salt can reflect a better treatment effect and improve the removal rate of arsenic. However, after the chemical treatment method, a large amount of waste residue will be formed, which will lead to secondary pollution. There is no good treatment method for these waste residues at present, so for The development of chemical precipitation has brought negative effects