<prompt> Translate the following text to SwahiliCollection of mercury is somewhat more efficient when a FF is used for particle collection because of the higher gas-sorbent contact in the filter cake.  <response>: Mkusanyiko wa zebaki ni kiasi fulani ufanisi zaidi wakati FF ni kutumika kwa ajili ya mkusanyiko chembe kwa sababu ya mawasiliano ya juu gesi-sorbent katika keki ya kichujio. 