An experimental study on the recovery of diesel oil using a belt type skimmer

J. Ocean Eng. Technol. 1997;11(3):132-143.

벨트식 유회수기를 사용한 디젤유 회수에 관한 실험적 연구

송동업,윤경환

단국대학교 대학원 기계공학과,단국대학교 기계공학과

Keywords: Skimmer, Belt Type Skimmer, Oil Spill, Oil Recovery

핵심용어: 유회수기, 벨트식 유회수기, 누유, 누유 회수

Abstract

Removal of spilled oil over the sea and the river has become one of the urgent problem in these days. Removing oil using mechanical devices are recommended because chemical dispersion can cause the secondary contamination in the environment. In the present study a series of experiments were carried out to study the effect of working conditions of a belt type skimmer on the rate of recovery for the spilled oil. The oil chosen for the present experiment was diesel oil. Three different situations, namely, upward, downward, up-and-downward pickup have been investigated for various contact angles, belt speeds and oil thicknesses. The results show that the rate of oil recovery for the case of downward pickup with a contact angle of 45.deg. shows the highest among all the conditions. For the removal of spilled diesel oil the optimal belt speed can be found as the critical value to reach the saturated pickup rate for a given oil thickness. The recovery rate of bunker C oil shows 4-6 times higher than that for diesel oil. And the optimal belt speed for bunker C oil can be found less than that for diesel oil for the same slick thickness.