Study Biodegradation of Linera alkyl benzene sulphonate LAS

The linear alkyl benzene sulfonate is organic pollutants resulting from uses of detergents types. I have conducted several studies on the Mediterranean to monitor the concentrations of these pollutants, however, little is known about the fate of the environment and the effect of environmental factors on the degradation these compounds. In this research laboratory to conduct a study of the degradation of alkyl benzene sulfonate compounds under different conditions, during the period from September to November 2007 period cuddling continued for three months, and storage the samples in different conditions, (Laboratory conditions presence of light, laboratory conditions in isolation from the light at 25 C° and 15 C°) were identified in total concentration of LAS hydrological and specifications according to the following program:(0-1-3-5-7-14-21-30-45-60-90) day. The results showed decrease total concentration of compounds LAS with the passage of time cuddling, compounds change specifications hydrological water by the biodegradation of the vital processes of photosynthesis taking place in aqueous media.

Enzymatic Preparetion of Sugar Fatty Acid Ester

Sugar fatty acid esters are nonionic surfactants, which are used for personal care products, cosmetic applications, and as emulsifiers for food. In recent years, enzymatic synthesis of sugar fatty acid esters is attracting keen attention as a new manufacturing method for future application. Some Reaction parameters of lipase-catalyzed synthesis of SFAE in organic solvent were optimized in a batch reactor. Optimum conditions for reaction performed were 10% (w/w of substrates) of lipase from Candida antarctica B, at 60°C. Among the solvents tested in this study, the highest yield (93%) was obtained when Aceton was used as a solvent,. The optimal sugar-to-fatty acid ratio was tested in the range from 3:1 to 1:7 and verious sugars were used. A high conversion was obtained when the ratio of Sugar: Fatty acid (1:5) and Froctuse were used as substrat, respectively.

Surfactant Properties of New Surface Active Agents Prepared From Unsaturated Fatty Acid

The aim of this research is to show that the insaturated fatty acids and their esters acquire quite interesting surfactant properties when they are sulfonated with SO٣ or HSO٣Cl. They are of great interest by virtue of being derived from renewable natural source in addition to their surface tension lowering, foaming power, rapid biodegradability and excellent performance in hard water. Yet, they achieve an improvement in soap behaviour in hard water. Therefore this type of surfactant can form a particularly effective synergistic system.

Study of Some Surfactant Properties and Sulfonate Which Prepared from Free Fatty Acids and Their Derivatives

Syria has produced cotton oil with large quantity like many other countries.This position provides an impetus to develop oleochemical industries, such as: fatty acids, fatty methylester, and fatty alkyl ester. These products can be sulfonated with SO٣ or HSO٣Cl. As a result, the obtained products have interesting properities due to their good detergency, lower sensitivity to water hardness, rapid degradability, and good skin mildness properties. Therefore, they can be used when mixed with other detergents or soaps for house hold purposes.