Industrial waste water treatment device and production and application method thereof

Abstract

The invention belongs to the field of heavy metal waste water treatment in environmental protection and particularly relates to an industrial waste water treatment device and a production and application method thereof. The production method comprises taking flake fallen leaves and/or similar plant leaves as raw materials, forming a layered structure through a designed absorbent forming mold according to laminating principles, performing controllable carbonization to obtain caky absorbent, stacking the caky absorbent into a corrosion-resisting barrel and closing the contact part between the caky absorbent and the corrosion-resisting barrel to obtain the industrial waste water treatment device. The application method comprises pumping industrial waste water to the upper end and enabling the waste water to pass through the filtering caky absorbent by gravity to achieve layer-by-layer purification, then taking the caky absorbent out and performing oxygen-enriched combustion, and then performing vitriolization to obtain sulfate. The industrial waste water treatment device is low in manufacturing cost, high in efficiency and utilization rate of the absorbent, simple in recycling of the caky absorbent and meanwhile capable of avoiding secondary pollution of metal ions.

Description

technical field [0001] The invention belongs to the field of treating heavy metal wastewater in environmental protection, and in particular relates to a device for preparing a novel wastewater treatment agent and a method for treating industrial wastewater produced by printed circuit boards. Background technique [0002] The production of printed circuit boards in China ranks first in the world. Like all other industries, the large-scale industrial manufacturing of printed circuit boards has faced contradictions between development and resources, development and the environment. The copper consumed in the production of printed circuit boards accounts for 30% of the country's total consumption every year; a large amount of high-concentration copper wastewater will be generated in the etching process and hole metallization process in the production process. Prerequisites are a hot topic of industry research. [0003] At present, in the treatment of printed circuit board wast...

AI Technical Summary

Problems solved by technology

Using chemical methods to activate heavy metal ion adsorbents in biomass wastewater will not only increase the cost of obtaining adsorbents, which is contrary to the original intention of using biomass waste, but will also cause secondary pollution problems

Using the thermal activation method can avoid the disadvantages of the chemical activation method, but there are obvious technical disadvantages in the current research involving pulverization first and then heat treatment to improve the adsorption rate, because the high temperature activation after pulverization will make the biomass Ashing occurs, which brings difficulties to practical applications. Although clay and other binders can be added for granulation to avoid such problems, this is a direct cost of increased cost and reduced efficiency of the adsorbent.

Images