The inclusion of fly ash class C, which is widely available locally, can influence the progress strength and durability qualities geopolymer concrete when exposed to significant environmental conditions. Alternative combinations appropriate for curing at ambient temperatures were employed investigate impacts C based concrete. To react with a combination sodium hydroxide silicate alkaline activa...

Chemical precipitation is one of the most widely known methods for treatment industrial wastewaters with high sulphate content, where can be precipitated as practically insoluble ettringite (Ca 6 Al 2 (SO 4 ) 3 (OH) 12 ·26H O). This method also recognised solidifying hazardous components and toxic elements e.g. arsenic in wastewater. In process, lime aluminium salts are typically used starting ...

Several cases of aerosol plumes resulting from trans-Pacific transport were observed between 2 km and 5.3 km at Whistler, BC from 22 April 2006 to 15 May 2006. The fine particle (<1μm) chemical composition of most of the plumes was dominated by sulphate that ranged from 1–5μg m−3 as measured with a Quadrapole Aerosol Mass Spectrometer (Q-AMS). Coarse particles (>1μm) were enhanced in all sulpha...

The durability of class C fly ash belite cement (FABC-2-W) in simulated radioactive liquid waste (SRLW) rich in a mixed sodium chloride and sulphate solution is presented here. The effect of the temperature and potential synergic effect of chloride and sulfate ions are discussed. This study has been carried out according to the Koch-Steinegger test, at the temperature of 20 degrees C and 40 deg...

A considerable amount of Hg is retained in flue gas desulfurization (FGD) gypsum from Wet Flue Gas Desulfurization (WFGD) systems. For this reason, it is important to determine the species of Hg in FGD gypsum not only to understand the mechanism of Hg removal by WFGD systems but also to determine the final fate of Hg when FGD gypsum is disposed. In this study, Temperature Programmed Decompositi...