title: Flocculent Settling of Food Wastes.
abstract: This study evaluated the flocculent settling in water and municipal wastewater (MWW) in a 10.6 ft deep column. A total of eight runs at three different testing conditions involving MWW alone, food waste (FW) alone, and FW in MWW (FW+MWW) were conducted. Total suspended solid (TSS), total BOD (TBOD), total COD (TCOD), total nitrogen (TN), and total phosphorous (TP) removal efficiencies after 3 hours of settling were 62%, 46%, 49%, 46% and 62% for FW, and 50%, 43%, 39%, 37% and 24% for MWW. Removal efficiencies of particulate COD (PCOD) and particulate BOD (PBOD) at the lowest surface overflow rate (SOR) of 1.1 m3/m2/hr corresponding to the longest settling time of 3 hours were 59% and 64% for FW, and 65% and 70% for FW with MWW samples. On the other hand, no significant variation between FW and FW with MWW was observed for PN removal after 3 hours of settling.
authors.affiliation: Civil and Environmental Engineering, the University of Western Ontario, London, ON, Canada N6A 5B9.
authors.forename: Mohammad Monirul Islam
authors.initials: MM
authors.lastname: Chowdhury
authors.forename: Mingu
authors.initials: M
authors.lastname: Kim
authors.forename: Basem Mikhaeil
authors.initials: BM
authors.lastname: Haroun
authors.forename: George
authors.initials: G
authors.lastname: Nakhla
authors.forename: Michael
authors.initials: M
authors.lastname: Keleman
mesh_terms: D005427:Flocculation; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D062065:Wastewater; D014874:Water Pollutants, Chemical