Industrial wastewater heavy metal ion removal treatment process

Abstract

The invention relates to an industrial wastewater heavy metal ion removal treatment process, wherein the process comprises a base, a reaction device and a stirring device; the upper end of the base isprovided with the reaction device through a support rod, the reaction device is internally provided with the stirring device, and the stirring device is arranged on the reaction device. The process can solve the problems that when existing equipment is used for removing heavy metal ions in industrial wastewater, wastewater cleaning liquid cannot be injected into the wastewater from multiple positions at the same time, contact between the wastewater cleaning liquid and the wastewater is reduced, and thus the reaction efficiency of the heavy metal ions in the wastewater is reduced, and the precipitation efficiency is reduced; and meanwhile, the problems that the wastewater cannot be stirred, the heavy metal ions in the wastewater easily have the unreacted precipitation phenomenon so as to reduce the heavy metal ion cleaning effect, and the floating objects cannot be scraped from the inside and easily have the incomplete scraping phenomenon so as to reduce the floating object scraping efficiency and the like are solved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a process for removing heavy metal ions from industrial wastewater. Background technique [0002] Industrial wastewater refers to the wastewater and waste liquid discharged during the production process, which contains industrial production materials, intermediate products, by-products and pollutants generated during the production process, which are an important cause of environmental pollution; heavy metal wastewater is A kind of industrial wastewater, mainly from the wastewater discharged from mines, smelting, electrolysis, electroplating, pesticides, medicines, paints, pigments and other enterprises. The heavy metal wastewater treatment usually adopts the precipitation method to convert the dissolved heavy metals in the wastewater into insoluble metals Compounds or elements, removed from wastewater by precipitation and flotation. [0003] At present, the existin...

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Problems solved by technology

[0005] The present invention can solve the problem that the existing equipment cannot inject the wastewater cleaning solution into the wastewater from multiple positions at the same time when removing heavy metal ions from industrial wastewater, which reduces the contact between the wastewater cleaning solution and the wastewater, thereby reducing the concentration of heavy metal ions in the wastewater. The reaction efficiency reduces the efficiency of precipitation, and the wastewater cannot be stirred and treated. The heavy metal ions in the wastewater are prone to fail to react and precipitate, thereby reducing the effect of heavy metal ion cleaning. At the same time, the floating objects cannot be cleaned from the inside. Scraping, floating objects are prone to incomplete scraping, which reduces the efficiency of floating objects scraping, and floating objects are easy to overflow from both sides during scraping, reducing the effect of scraping and other problems

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