System and method for desorbing and enriching heavy metal ion in aquo-complex method solution

Abstract

The invention provides a system and a method for desorbing and enriching heavy metal ions in an aquo-complex method solution, and belongs to the field of environment-friendly engineering. The heavy metal ion desorbing and enriching system comprises an aquo-complex generation subsystem, a vacuum filtration subsystem, a centrifugal separation subsystem and an aquo-complex decomposition subsystem. The system and the method are applicable to desorption and enrichment of heavy metals in solutions for scientific study and industrial application; due to generation and decomposition of an aquo-complex, desorption and enrichment of the heavy metal ions of the solutions are achieved; due to adoption of decomposition liquor, desorption of the heavy metal ions is achieved; due to adoption of a residual liquid, enrichment of the heavy metal ions is achieved; the method is relatively high in desorption efficiency and universality, and multiple heavy metal ions can be desorbed simultaneously. Meanwhile, the operation process is stable and reliable, relatively low in energy consumption and high in feasibility.

Description

technical field [0001] The invention relates to a heavy metal removal and enrichment system and method in a hydrate method solution, belonging to the field of environmental protection engineering. Background technique [0002] In scientific research, it is sometimes necessary to enrich the heavy metals in the solution, and use the enriched solution to carry out related experimental research. At the same time, with the development of modern industry, a large amount of wastewater containing heavy metal ions is produced. Wastewater containing heavy metal ions mainly comes from electroplating factories, laboratories, mechanical processing, mining, smelting of steel and non-ferrous metals, and some chemical processes. Heavy metal wastewater generally contains mercury, chromium, cadmium, copper, zinc, lead, etc. These heavy metal ions are difficult to degrade, so excessive discharge will cause environmental accumulation and cause great harm. Therefore, heavy metal ions should be ...

AI Technical Summary

Problems solved by technology

At present, the commonly used heavy metal ion removal methods include chemical precipitation method, reverse osmosis membrane method, adsorption method, etc., but they all have the disadvantages of single treatment object and high cost.

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