High-efficiency electroplating wastewater treatment and resource utilization device

Abstract

The invention discloses a high-efficiency metal and acid radical negative ion recovery device developed according to electrowinning and electroosmosis principles, which can be used for purification of electroplating wastewater and recycling of metal ions and acid radical ions. To reduce the surface current density of a cathode and improve the metal deposit efficiency, the invention designs a cathode with unique appearance and huge surface area. The powerful cathode flush nozzle designed by the invention can effectively remove metal deposited on the electrode surface, so that cathode regeneration and recovery of metal deposited on the cathode can be realized. An anion exchange membrane arranged between an anode chamber and a cathode chamber ensures that the acid radical ions can be selectively enriched in the anode chamber. The device not only contributes to regeneration and recovery of acid, but also can avoid dissolution of high-corrosion acid on metals newly deposited on the cathode. The electrode liquid reflow system arranged in the device not only can improve the recovery efficiency, but also can be used in a small recovery device for treating mass electroplating wastewater.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for better purification of acidic ion concentrations from polluted or contaminated waters during chemical plating processes without causing damage to valuable metals such as copper (Cu). Anionic exchangers are placed inside the anodization tank to capture specific types of impurities like nitrogen dioxides (NO2), hydrocytes containing ammonia, sulfate compounds, etc., which may cause environmental concerns due to their potential negative impacts upon human health. By treating these effluents properly, this process helps recover useful materials more efficiently than traditional methods.

Problems solved by technology

Technics discuss how these technical problem addressed in the patented text relates to improving the performance of elecrochromatic cell batteries called lithiocarbon or zinc-carboxymer batteries when they come close together inside a special chamber containing specific elements like silver particles. These element surfaces act as barriers preventing charged atoms from moving freely within them while carrying out electrical conductions. To address this issue, the patents propose techniques involving applying thin films made of conductors onto the substrate surface to enhance their properties.

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