tender for cleaning, supply and filling of material in tertiary treatment plant mgf and acf in season 2024-25, 1 cleaning, supply & filling of material in tertiary treatment plant mgf & acf in season 2024-25 2 a. supply of media for multi grit filter of size 1700mm x 2000mm heightmedia-under bed with graded silica sand mediadetails-20/40, 10/20, 2/10, 8/16, 16/32b. supply of media for activated carbon filter of size 1700mm dia x 2000mm heightmedia-under bed with graded silica sand in activated carbon details-20/40, 10/20, 2/10, 8/16, 16/32 activated carbon- iodine value above 900 3 supply of silicon membrane for s.s. diffuser with s.s. clamp at etp (as per sample) 4 coarse air bubbling diffuser for equalization tank at e.t.p. (as per sample)