Preparation of ceramic particle by adopting calcium fluoride sludge

Abstract

The invention discloses the preparation of a novel ceramic particle by adopting calcium fluoride sludge, and belongs to the technical field of environmental engineering. The process flow of the preparation comprises the solidification and the desiccation of fluorine-containing sludge, batching, pressurization and pelletization, roasting, cooling and sieving. The preparation has the beneficial effects that 1, through the preparation provided by the invention, the ceramic particle is produced by utilizing an industrial waste resource, namely the calcium fluoride sludge, the disposal problem of the calcium fluoride sludge is effectively solved, and the sustainable utilization of the resource is realized; and 2, the prepared ceramic particle is used as an adsorbent, in addition, the prepared ceramic particle can be also widely applied to a raw material of a building material which has fire resistance, heat preservation, sound insulation, water resistance and the like, a filter material for water treatment, a culture medium for the soilless culture in agriculture and gardens, and the like.

Description

technical field [0001] The invention relates to a process for treating calcium fluoride sludge, in particular to a process for preparing novel ceramsite by using dried calcium fluoride sludge, and belongs to the technical field of environmental engineering. Background technique [0002] The incomplete treatment of fluorine-containing wastewater and waste gas in industrial production is likely to cause harm to animals, plants and humans. The main components of fluorine-containing industrial sludge are still calcium fluoride and calcium sulfate. These two types of substances are good industrial raw materials. If they are disposed of in landfill, they will inevitably cause waste of resources and environmental hazards. Therefore, resource utilization of such substances is required, which not only eliminates fluorine pollution, but also utilizes limited fluorine resources. [0003] Taking reduction, harmlessness, and resource utilization as the guiding ideology of the entire res...

AI Technical Summary

Problems solved by technology

[0002] The incomplete treatment of fluorine-containing wastewater and waste gas in industrial production is likely to cause harm to animals, plants and humans

The main components of fluorine-containing industrial sludge are still calcium fluoride and calcium sulfate. These two types of substances are good industrial raw materials. If they are disposed of in landfill, they will inevitably cause waste of resources and environmental hazards.