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SORPTION BEHAVIOR OF HIBISCUS CANNABINUS L. CORE IN SIMULATED BUNKER OIL C – SEAWATER MIXTURE

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SORPTION BEHAVIOR OF HIBISCUS CANNABINUS L. CORE IN SIMULATED BUNKER OIL C – SEAWATER MIXTURE
SORPTION BEHAVIOR OF HIBISCUS CANNABINUS L. CORE IN SIMULATED
BUNKER OIL C – SEAWATER MIXTURE

Lea C. Tan, Trina G. Napasindayao, Florinda T. Bacani
Chemical Engineering Department, De La Salle University-Manila, Philippines
2401 Taft Avenue, Malate, Manila, Philppines, 1004

Keywords: Kenaf; mathematical equation; quantifying sorbent capacity; oil spill; sorbent; sorption

ABSTRACT

Sorption using natural sorbents is an alternative method of oil spill treatment. This research proposed a polynomial equation that described the sorption behavior of Hibiscus cannabinus L. core in Bunker Oil C-seawater mixtures. This equation may be applied for oil concentrations of 0.001 to 0.003 mL oil/mL mixture and for a contact time of 15.00 to 120.00 min. The sorption behavior was characterized using specialized parameter define as Sorption Quantity (SQ) (g oil sorbed/g sorbent). The amount of oil sorbed by the Kenaf core was measured at different oil concentrations and contact times using mass balances. Design Experts, a computer software, was utilized in formulating the central composite design and in the statistical analysis which made use of the response surface method. Results show that the sorption behavior is best at high oil concentration and longer duration of exposure. Based on the sorption parameter, the most recommended time of contact is in the range of 65.00 to 95.00 min. The quadratic model was selected among other polynomial equations based on its R2 value of 0.9495 and p-value which is less than 0.0001 at a 0.05 confidence level.

INTRODUCTION

The availability of liquid petroleum in the form of crude oil and its refined products is a key driver in modern society, but its widespread use results in accidental and intentional releases resulting to oil spills. These oil spills have created large damages, casualties and losses on both marine and land resources. In addition, oil spills generally take about two to three years to clean
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