Comparison experiments were carried out to examine the effect of saponins on n-hexane removal in two BTFs at various saponins concentrations, n-hexane loading rates (LRs) and gas empty bed contact times (EBCTs).
The effects of gas empty bed contact time (EBCT), biofilter configuration, and types of volatile organic compounds (VOCs) were evaluated to assess the performance of rotating drum biofilters (RDBs), especially at low EBCT values.
Thirty more people waited on foot in a tense line for gas, holding empty plastic bottles normally used for milk or water.
President Obasanjo, for instance, has broken up groups that diverted fuel to sell on the black market, leaving gas stations empty or with mile-long lines.
His sunny scenes of gas stations, empty boulevards, rubble and happy little tots mugging at the camera are modest, exquisite snapshots of understated affection, precious geometry and urban poetry.
There is no overstating how much this killer or killers has changed their lives, with gas stations empty, schools in a panic, white vans getting pulled over left and right.
Videos reveals smoke clouds of what appears to be tear gas, inundating empty streets that were at one point filled with protesters.
Ullah tucked this memory into her mind, along with memories of many other places she's prayed ― gas stations, empty classrooms, mall dressing rooms, amusement parks, beaches. .
Vice President Walter Mondale and the president's domestic policy adviser, Stuart E. Eizenstat, were troubled by so much ruminating on the American condition; they were certain that Americans were less concerned with philosophical emptiness than empty gas tanks.
However, when the Jeep was turned on its side to simulate a rollover after an impact, the gas tank emptied, Mr. Nash, the former N.H.T.S.A. official, said.
Demonstrators and passers-by sought shelter in nearby cafes that sealed off their windows, in case the police used tear gas, and emptied terraces overlooking the square.
