A new kind of environmental ceramics medium which was made of industrial solid wastes discharged hy Shandong Alum Corporation has been used in the process of drinking water treatment. New techniques were introduced to...A new kind of environmental ceramics medium which was made of industrial solid wastes discharged hy Shandong Alum Corporation has been used in the process of drinking water treatment. New techniques were introduced to ensure its remarkable advantages such us high porosity and strength. The results of proctical application shotc that this sort of filter medium has shorter,filtration run, shorter mature period and higher filter deposit cupability compared with traditional sand filter medium. Moreaver, up to 25%-30% of the daily running costs are expected to be reduced by using this ceramics medium.展开更多
Porous alumina ceramics are widely used in various fields because of their unique characteristics in structure and properties.This article mainly provided an overview of preparation techniques of porous alumina cerami...Porous alumina ceramics are widely used in various fields because of their unique characteristics in structure and properties.This article mainly provided an overview of preparation techniques of porous alumina ceramics;besides,the principles and the characteristics of pore-forming agents processes,gel-casting processes,freeze-casting processes,anodizing processes and other common processes in obtaining the required properties of porous alumina ceramics were introduced.Meanwhile,the relevant applications and the performance of porous alumina ceramics were described.The research prospects of porous alumina ceramics were put forward based on the research status at the end of this paper.展开更多
文摘A new kind of environmental ceramics medium which was made of industrial solid wastes discharged hy Shandong Alum Corporation has been used in the process of drinking water treatment. New techniques were introduced to ensure its remarkable advantages such us high porosity and strength. The results of proctical application shotc that this sort of filter medium has shorter,filtration run, shorter mature period and higher filter deposit cupability compared with traditional sand filter medium. Moreaver, up to 25%-30% of the daily running costs are expected to be reduced by using this ceramics medium.
基金This work was supported by National Natural Science Foundation of China(NSFC,NO.51672209)by National Key R&D Program of China(Grant No.2017YFB0310300)+1 种基金the Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2016JQ5046)Shaanxi Innovation Capacity Support Program(2018TD-031).
文摘Porous alumina ceramics are widely used in various fields because of their unique characteristics in structure and properties.This article mainly provided an overview of preparation techniques of porous alumina ceramics;besides,the principles and the characteristics of pore-forming agents processes,gel-casting processes,freeze-casting processes,anodizing processes and other common processes in obtaining the required properties of porous alumina ceramics were introduced.Meanwhile,the relevant applications and the performance of porous alumina ceramics were described.The research prospects of porous alumina ceramics were put forward based on the research status at the end of this paper.
