preview

Chemical Disidation Process: Chemical Oxidation Method

Good Essays
2.4.3. Chemical Oxidation Method
Chemical oxidation method, appear to have the maximum ability for use within the textile wastewater industry [37]. Treatment of spent dye effluent by means of a method using ultraviolet light (UV) and a strong oxidant is an effective alternative for the removal of color. Hydrogen peroxide (H2O2) is the most common oxidant utilized in combination with UV. Chlorine dioxide (ClO2) additionally has oxidative capabilities for color elimination. Further, UV in aggregate with ClO2 is a likely treatment for the reduction of colored effluent from textile dyeing facilities. Ozone is one of the most powerful oxidizers commercially to be had and famous for huge complex organic molecules of dyes, detergents, phenols etc. it may be broken the compounds into easier one. It can also oxidize organics and inorganics compounds, hence the disposal of color and odors. For most commercial applications ozone needs to be produced at situ. In textile effluent it
…show more content…
Physical adsorption takes place when the Vanderwaals forces bind the adsorbing molecule onto the solid substrate; those intermolecular forces are similar to the bond molecules to the surfaces of a liquid. The heats of adsorption are comparable in magnitude to latent heats (10 to 70 KJ/mol). Specifics that are physically adsorbed to a solid may be released through making use of heat; the process is reversible. An increase in temperature causes a lower in adsorption efficiency and capacity. Chemical adsorption occurs when covalent or ionic bonds are formed among the adsorbing molecules and the solid substrate. This bonding results in a change within the chemical form of the adsorbed compounds, and is therefore not reversible. The bonding forces for chemical adsorption are much more than for physical adsorption. Therefore, extra heat is liberated. With chemical adsorption, higher temperatures can improve the overall performance
Get Access