A method for preparing ultra-light ceramsite by using heavy organic polluted soil and non-ferrous metal smelting slag

Abstract

The invention relates to a method for preparing ultra-light ceramsite by using heavy organic polluted soil and non-ferrous metal smelting slag. The preparation method of the ultra-light ceramsite includes the following steps: (1) mixing heavy organic polluted soil and non-ferrous metal smelting slag in proportion to obtain a mixed material; (2) granulating the mixed material in step (1), Roasting to obtain ultra-light ceramsite. The present invention can use heavy organic polluted soil and non-ferrous metal smelting slag as raw materials, through the steps of mixing, granulating, drying, roasting, cooling, etc., and by controlling the ratio of raw and auxiliary materials and roasting process parameters, it can be prepared with low bulk density, Ultra-light ceramsite with low water absorption, organic matter content and heavy metal content in the leach solution can meet the requirements, and realize the harmlessness and resource utilization of the two wastes.

Description

A method for preparing ultra-light ceramsite by using heavy organic polluted soil and non-ferrous metal smelting slag method technical field The invention belongs to the technical field of soil remediation, be specifically related to a kind of utilization of heavy organic polluted soil and non-ferrous metal smelting technology. Method for preparing ultra-light ceramsite by smelting slag. Background technique [0002] With the transformation and upgrading of economic development in recent years, the optimization and adjustment of industrial structure and layout, 3. "Industrial enterprises enter the park and enter the zone", especially the vigorous promotion of supply-side structural reforms, a large number of outdated production capacity have been eliminated, due to one Due to the relocation or closure of some traditional polluting enterprises such as chemical and metallurgy, industrial pollution sites are constantly generated, and there are a large number of polluted s...

AI Technical Summary

Problems solved by technology

The existing preparation of ceramsite with organic polluted soil as raw material mainly uses fly ash and sludge as ingredients, but there are few reports on the preparation of ceramsite with non-ferrous metal smelting slag as ingredients. The ceramsite prepared with organic polluted soil as raw materials can meet the requirements for the use of building light aggregates, and the risk of heavy metals, dioxins and other pollutants released during the process of ceramsite preparation is controllable

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