Thirumullavaram temple pond associated with Sree Mahavishnu temple is located very close to the Arabian sea in Kollam municipality of Kerala. Physicochemical characteristics of water and sediment, productivity, plankton count, coliform count and correlation coefficients of various parameters were analysed for a period of one year from June 1999 to May 2000. It showed that the water characterist...

The effect of the curing in a carbonated ambient of the solids obtained after the stabilization/solidification (S/S) of metallurgical waste using geopolymerization technology is described in this paper. The electric arc furnace (EAF) dust used to stabilize contains hazardous metals such as Pb, Cd, Cr or Zn. Different geopolymeric agents as potassium hydroxide, potassium silicate, metakaolin and...

We report our continued progress on the development of a thermochemical model of aluminum silicate mineral solubilities in aqueous solutions containing H, Na, K, Al, Cl, Si(OH)4, SiO(OH)3 , OH, Al(OH), Al(OH)2 , Al(OH)3 , Al(OH)4 − as a function of pH to high salt concentrations (I ≤ 5 m). Prior conference proceedings outlined our progress in developing an accurate model for the potassium free ...

Density functional theory is used to determine the possible crystal structure of the CaSiO3 perovskites and their evolution under pressure. The ideal cubic perovskite is considered as a starting point for studying several possible lower-symmetry distorted structures. The theoretical lattice parameters and the atomic coordinates for all the structures are determined, and the results are discusse...

This report reviews the safety of Aluminum, Calcium, Lithium Magnesium, Lithium Magnesium Sodium, Magnesium Aluminum, Magnesium, Sodium Magnesium, and Zirconium Silicates, Magnesium Trisilicate, Attapulgite, Bentonite, Fuller’s Earth, Hectorite, Kaolin, Montmorillonite, Pyrophyllite, and Zeolite as used in cosmetic formulations. The common aspect of all these claylike ingredients is that they c...

Palm ash is the waste from palm combustion which contains a lot of silicate. In addition, also inorganic cations such as potassium and sodium. pozzolanic material, non-binding material cement, but active Silica Oxide (SiO2) compounds when reacted with free lime or calcium hydroxide (Ca (OH2)) water will form materials namely Hydrate. this study we use has been stated to have good soil improveme...

Over the past decades, efficiency of silicate-based surface treatment agents, in other words, sealers, concrete systems has been widely investigated. The technology protects cementitious against penetration undesirable substances. Nevertheless, understanding several aspects concerning sealers is not entirely clear. This paper studies action mechanism selected silicates such as potassium, sodium...