Indonesia’s Local Material Effect in Clay-Based Ceramic Filter Fabrication as an Alternative for Liquid Radioactive Waste Processing Material

Abstract

One of the procedures to handle liquid radioactive waste is by filtration process. To do this process, suitable filter should be used because of radioactive nature of the waste. Ceramic filter is one of the suitable filters that could be used for this purpose. This paper will discuss about producing ceramic filter from local clay and test its performance. Performance of the filter is given by its flux, compressive strength, Decontamination Factor (DF) and adsorption efficiency. The results show that there are almost no effects of casting pressure on both flux and compressive strength of ceramic filter, but zeolite addition produces different effect. The higher concentration of zeolite will decrease the filter flux and increase filter compressive strength. The optimal composition from this research is 70% w/o clay-25% w/o zeolite-5% w/o charcoal. It has adsorption efficiency (60.36) and Decontamination Factor (2.52). Besides, Sr concentration after filtration is still higher than environmental standard for Sr-90 and more studies are still needed.

Using Zeolites To Protein Stabilize White Wines

“…Zeolites are characterized by the presence of so-called zeolitic water in their composition, which is removed from its structure during heating and leaves the open skeletal structure of the crystal unchanged. A structure like this offers unique molecular sieve, sorption, and ion exchange properties that have been applied in many aspects of life: from water and sewage treatment (removal of ammonium ions, radioactive elements, heavy metals, oil pollution) to adsorption of water , and gases, , as well as in agriculture and other types of industry. In 2010, Mercurio et al used zeolitized tuffs to treat and stabilized Italian wines from the Campania region .…”