 percolate antey emti ?
 percolation anede porous filter media dwara dravam ledha itara padhaarthaanni filter cheyadanki ooka margam .  neee ,  coffey ,  modalainavi prasarimpajeyagala padardhalu .  porous media dwara yea padaardhaala yokka trickling prabavam filter media nundi bayataku occhedi filter media kante mundhu unnadaani kante merugaina ruchini suchisthundi .  idi manchi nanyatha ,  takuva kaalushyam ledha aamlatanu tagginchadam ani kudaa ardham .