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Phenol is one of the most important starting materials for various chemical products. The major process to produce phenol is the CHP route because of high CHP conversion and phenol yield and its mild reaction conditions. Acetone, an important chemical, is coproduced with phenol in this process in nearly same yield. A problem is: the future demand for acetone will decrease, while the demand of phenol will enormously increase. Unfortunately this means the phenol production is in part dependent on the demand for acetone, which is rising at a lower rate than phenol, and so in the future acetone...

Water pollution is an exacerbated problem in many parts of the world as a result of limited water resources to satisfy the increasing agricultural, population and industry demand for water and due to the raise of polluted amounts posed to these water resources. Among these famous and important pollutants lagging from various types of industries are Dyes. Besides non aesthetic appearance, the dye wastes may be toxic to human and environment and due to non-easily biodegradable it remains for long time in water. Currently, there are several methods to treat polluted water with dyes but each...

Water is the most valuable substance found on our planet. Many agricultural, industrial, health and other activities depend on it. In other words, water is the source of life. With the continuous development, various fields will consume huge amounts of chemicals and poses hazardous waste to the water. The most dangerous residues are the toxic metals. Toxic metals are cast to the water due to different actions and posed a worldwide problem because its do not degrade into harmless products. So, it can cause bad effect to human and other organisms. Many researchers get it that adsorption is the...