Electrolytic deposition-membrane separation combined treatment device for electrolytic zinc rinse wastewater

Abstract

The invention discloses an electrolytic deposition-membrane separation combined treatment device for electrolytic zinc rinse wastewater, comprising a liquid inlet pipe, an adjusting tank, an electrolytic deposition device, a three-dimensional fixed bed device, a safety filter, three circulating pumps, a membrane assembly, a clear water outlet and a condensed liquid reflex hole, wherein the connection of various components is detailed in the description. The invention has the advantages that: by combining the electrolytic deposition technology with the membrane separation technology, the device has the advantages of less investment, high handle capacity, low energy consumption, high benefit, easy industrialization and easy implementation of the comprehensive utilization of resources; the effluent discharge after reaching standards and the recycling are realized, the heavy metal resources in the wastewater are effectively recycled; and automation degree is high and manual operation is simple and convenient, the complete recovery and zero discharge of heavy metals can be basically realized and water resources are completely recycled and the wastewater is deeply purified.

Description

technical field [0001] The invention relates to a wastewater treatment device, in particular to an electrodeposition-membrane separation combined treatment device for electrolytic zinc rinsing wastewater. Background technique [0002] Heavy metal wastewater is a pollutant that is extremely harmful to the environment and human health. With the promulgation of a series of environmental protection laws and standards, the requirements for heavy metal wastewater treatment are becoming more and more strict. Heavy metal wastewater is produced in many industries and industrial sectors such as metallurgy, electroplating, chemical industry, electronics, machinery manufacturing and processing. While removing heavy metal ions in wastewater efficiently and with low consumption, realizing wastewater reuse and heavy metal recovery is the development direction of heavy metal wastewater treatment in the future. When a chemical wastewater treatment device treats heavy metal-containing wastew...

AI Technical Summary

Problems solved by technology

When chemical wastewater treatment equipment treats wastewater containing heavy metals, many heavy metal wastewaters contain a large amount of organic complexes, which limits the chemical sedimentation process, resulting in excessive heavy metal content in the treated wastewater

Although traditional wastewater biological treatment devices have the advantages of low cost and convenient treatment, due to the influence of wastewater toxicity, it is difficult to implement on a large scale, and the treatment efficiency is low and the effect is poor

In the past, electrochemical wastewater treatment devices were used. When the concentration of heavy metals in wastewater decreased, there were problems of high energy consumption and poor treatment effect.

[0003]With the increasingly stringent environmental protection requirements, a single process often cannot achieve this goal very well

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