Use of statistical modeling for BTEX prediction in cases of crude oil spill in seawater

Combined Treatment (Alkali + Thermal) of Calotropis procera Fiber for Removal of Petroleum Hydrocarbons in Cases of Oil Spill

“…In real cases of oil spills, the faster the process of sorption occurs, the smaller the environmental impacts on the marine environment or land. Anjos et al (2021) evaluated the concentrations of BTEX (benzene, toluene, ethylbenzene, and xylenes) in the soluble fraction of oil, simulating a spill by varying the contact time of the oil in seawater from 1 to 24 h, where the concentrations of benzene, carcinogenic compound, and mutagenic exceeds the most restrictive value by CONAMA (51 µg/L) for saline waters where there is fishing or cultivation of organisms, for intensive consumption purposes (BRASIL, 2005), in just 1 h [ 28 , 29 ]. With 24 h of oil spill into seawater, the average concentrations of benzene, toluene, ethylbenzene, and xylenes were 1409 µg/L, 1279 µg/L, 67 µg/L, and 357 µg/L, respectively, showing the importance of the removal of this oil in a short period.…”

“…With 24 h of oil spill into seawater, the average concentrations of benzene, toluene, ethylbenzene, and xylenes were 1409 µg/L, 1279 µg/L, 67 µg/L, and 357 µg/L, respectively, showing the importance of the removal of this oil in a short period. To evaluate the sorption capacity of CPNaOHT in shorter times, sorption tests were carried out for short times of 5, 20, 40 min for the two sorption systems with only oil and oil/water, for petroleum and paraffin [ 28 ].…”

“…The levels of significant factors and effects of interactions between the factors that were analyzed by factorial design 2 3 . The three factors: viscosity (cP) of the oil, fiber/oil contact time (h), and the type of oil-only sorption system (O), and oil and water (O/W) were selected according to the literature [14,15,[24][25][26][27][28] and planned according to the matrix described in Table 2. For modeling purposes, the independent variables (factors) were scaled for coded variables (Table 2), and the sorption capacity of the materials for oils was named S 1 (g/g).…”

“…Evaluating the effect of isolated variables, it is observed that the viscosity showed a greater influence on the sorption process. The oil viscosity is a parameter of great importance in the sorption process as reduced oil viscosity reduces sorption into the pores and vessels capillaries of materials, and more viscous oils have higher sorption due to adhesion to surfaces of materials and in pores [24][25][26][27][28]. Wei et al (2003) showed in their experiments that increasing the viscosity from 18.7 cP to 54.8 cP contributes significantly to the increase in the sorption capacity of polypropylene [24].…”

Biossorvente Do Pó Do Mandacaru (Cereus Jamacaru Dc) Hidrofobizado Para Remoção De Diesel Em Casos De Derramamento

“…Portanto, muitos esforços nas últimas décadas têm se concentrado no desenvolvimento de estratégias de prevenção e métodos de intervenção para combater prontamente a poluição por derramamentos de óleo (Anjos et al 2020a, Anjos et al 2020b). Esses contaminantes quando presentes no ambiente, promovem a contínua contaminação por hidrocarbonetos monoaromáticos (BTEX), hidrocarbonetos policíclicos aromáticos (PHAs) e hidrocarbonetos totais de petróleo (TPH), podendo gerar problemas por vários anos e até décadas (Anjos et al, 2021a, Anjos et al, 2021bRamalho et al, 2014;Rengasamy;Das;Karan, 2011).…”