Resource utilization method for zinc hydrometallurgy jarosite residue and sewage treatment sludge

Abstract

The invention discloses a resource utilization method for zinc hydrometallurgy jarosite residue and sewage treatment sludge. The zinc hydrometallurgy jarosite residue and the sewage treatment sludge are taken as main raw materials, and the concrete solid brick is prepared. The raw materials comprise the following raw materials in percentage by mass: 15.0%-19.5% of crude sand / gravel, 4.5%-6.5% of fly ash, 4.5%-6.5% of blast furnace slag, 24.1% to 31.0% of a gelling agent, 40.0% to 49.0% of the zinc hydrometallurgy jarosite residue and the zinc hydrometallurgy jarosite sewage treatment sludge, wherein the mass ratio of the zinc hydrometallurgy jarosite residue to the zinc hydrometallurgy jarosite sewage treatment sludge is 4:1-5:1. According to the invention, the waste is used for treating waste, and the zinc hydrometallurgy jarosite residue and the sewage treatment sludge are subjected to whole, large-scale tretment and utilization, the zero emission of zinc hydrometallurgy jarosite residue and sewage treatment sludge can be realized, and the purposes of quantization reducing, harmlessness and recycling of the zinc hydrometallurgy jarosite residue and the sewage treatment sludge areachieved.

Description

technical field [0001] The invention relates to a method for the treatment and disposal of industrial solid waste, in particular to a method for the preparation and utilization of dangerous waste produced by hydrometallurgy—aluminum slag and sewage treatment sludge, which belongs to the solid waste of environmental engineering Harmless treatment, disposal and resource utilization of waste. Background technique [0002] Zinc smelting processes can be divided into two categories: pyrometallurgy and hydrometallurgy, among which hydrometallurgy zinc production accounts for more than 85% of my country's zinc production. The main production process of zinc hydrometallurgy is "zinc sulfide concentrate boiling furnace roasting - calcined sand leaching - leachate purification - hydrostatic electrowinning - electrozinc ingot casting". The leaching process can be divided into conventional method and hot acid leaching method. The zinc production of the acid leaching-aluminum iron remov...

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Problems solved by technology

[0008] The purpose of the present invention is aimed at the low resource utilization rate of the jarosite slag and sewage treatment sludge existing in the prior art, serious environmental pollution, and the technology and funds for the treatment and disposal of the hydrometallurgy jarosite slag and sewage treatment sludge. In order to solve a series of problems such as site and site, a resource utilization method of hydrometallurgy slag and sewage treatment sludge is provided, which can realize zero discharge of hydrometallurgy slag and sewage treatment sludge, and at the same time achieve wet The purposes of reducing, harmless and resourceful zinc smelting iron alumina slag and sewage treatment sludge

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