Method for treating specific pollutants through high-temperature melting technology

Abstract

The invention provides a method for treating specific pollutants through a high-temperature melting technology. The specific pollutants comprise electroplating sludge, sludge containing metal and/or incineration disposal residues. The method comprises the steps that pretreatment is carried out, wherein the specific pollutants are pretreated, the water content of the specific pollutants is reduced to be 10 wt% or lower, and dry specific pollutant materials are obtained; burdening, blending and granulating are carried out, wherein regulating components are added as needed, mixed and granulated, and a granulated mixture is obtained; melting is carried out, wherein the granulated mixture is melted at the melting temperature ranging from 1,200 DEG C to 1,800 DEG C; and products are obtained, wherein the melted metal is settled on the lower layer and is discharged to obtain a metal alloy, and slag and a small part of metal float above the melted metal and are discharged to obtain glassy-state slag. After the specific pollutants are treated through the method, harmless and pollution-free resource materials can be obtained, and the method can be used for resource recycling, and is good in economic benefit and beneficial to commercial popularization.

Description

technical field [0001] The present invention relates to the field of environmental protection, in particular to a method for treating specific pollutants using high-temperature melting technology, in particular to a method for treating surface treatment waste sludge (including electroplating sludge and metal-containing sludge) and / or incinerating waste sludge using high-temperature melting technology Method for disposing of residues, and a corresponding device. Background technique [0002] Today, environmental protection has become a basic national policy, and various environmental pollution problems caused by surface treatment wastes and incineration residues in hazardous wastes are increasingly concerned and valued by the whole society, and even affect social stability and national economy. Sustained and stable development has an important impact. [0003] 1. The characteristics of the processing object [0004] Surface treatment waste is produced during the surface tre...

AI Technical Summary

Problems solved by technology

The disadvantage is: the processing object is specific, and the investment cost and operating cost are high

This type of technology is still in the experimental stage, and the process technology is not yet mature.

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