Synthesis of Some Oil Spill Dispersants From Locally Alkyl Benzene and Evaluating Their Dispersion Efficiency and Toxicity

摘要

Seven surfaee-aelive agents used as oil spill dispersants were prepared based on linear alkyl benzene-N-hydroxyl ethyl sullbnamidc. Five of them are nonionic and the other two are ionic. These surfactants were prepared from locally raw materials. Their chemical structure and surface-active properties were investigated using the FT-IR, surface tension, and interfacial tension measurements. The efficiency of these dispersants was compared with a commercial used dispersant from Dasic Company. The toxicity test was carried out using aquatic animal (Modiolus adriaticus). The animal was exposed to these dispersants for 120 h at different dispersant to oil ratio. From the obtained results it was found that, the percentage of mortality of mussels after 1-h exposure from the start of the tests equalized zero. It varied with passing time up to 120 h, at which the mortality rate became 50%.