Building material manufactured by mud as raw material and preparation method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- HARBIN INST OF TECH
- Publication Date
- 2006-06-28
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a building material and a preparation method thereof. Background technique
[0002] Now, as a natural resource, sludge has not been effectively used; on the contrary, people need to add additional costs to dispose of the sludge generated in the water treatment process, which increases people's labor burden and economic burden. The primary obstacle to the use of sludge as a building material is that the heavy metals in the sludge are not easily removed or solidified, because during the sintering process of using sludge as a raw material to prepare building materials, the transformation of heavy metal elements in the material is It is a very complicated process, which may occur the combination of particles, the condensation and diffusion of gaseous metals on the surface of particles, or the concretion of metal vapor when it is cooled, and the chemical reactions between heavy metals or between heavy metal elements and other elemen...