Treatment method of beneficiation wastewater

Abstract

The invention discloses a treatment method of beneficiation wastewater. The wastewater is successively treated through a water collecting well, a coarse screen, a primary settling pond, a pH value adjusting pond, a carbon dioxide vortex convection scum separation reactor, an aeration tank, a biological oxidation filter chamber, a secondary settling pond and a pure water pond. By the method, a rotational flow wall attachment effect in fluid mechanics is utilized creatively, when liquid in a container carries out vortex movement, if contrarotation power is applied to the center position of a vortex simultaneously so that a reverse vortex is generated, barium ions in the liquid can be in rotational flow wall attachment effect, and are gradually gathered in a narrow region between an inner reverse vortex and an outer forward vortex, the local ion concentration is increased, at the moment, carbon dioxide gas is guided and is dissolved in a solution to form carbonate ions, then the barium ions can be combined with the carbonate ions to produce difficultly dissolved barium salt precipitate which floats along the narrow region between the two vortexes, finally barium salt scum is formed, and the barium ions in the solution are removed.

Description

technical field [0001] The invention relates to a treatment method for ore dressing wastewater, which belongs to the field of wastewater treatment in environmental protection. Background technique [0002] Mineral resources are an important material basis for the development of human society and the construction of the national economy. Mining is the industry with the longest history in my country, and it is also the basic industry for the development of the national economy. It involves agriculture, light industry, chemical industry, metallurgy, machinery, construction, energy, Many fields of transportation, national defense and people's daily life. It can be seen that the mining industry plays an irreplaceable and important role in the development of my country's economy. However, during the mining process, mines require a large amount of production water, and at the same time discharge a large amount of wastewater. The indicators such as the concentration of heavy metal i...

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Problems solved by technology

However, due to the high cost of membrane modules, membrane fouling during use, and reduced flux, the current research on the application of membrane separation technology is mainly concentrated in experimental institutions.

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