Powdered activated carbon added biological treatment of pre-treated landfill leachate in a fed-batch reactor.
Biological treatment of landfill leachate usually results in low treatment efficiencies because of high chemical oxygen demand (COD), high ammonium-N content and also presence of toxic compounds such as heavy metals. A landfill leachate with high COD content was pre-treated by coagulation-flocculation followed by air stripping of ammonia at pH = 12. Pre-treated leachate was biologically treated in an aeration tank operated in fed-batch mode with and without addition of powdered activated carbon (PAC). PAC at 2 g l-1 improved COD and ammonium-N removals resulting in nearly 86% COD and 26% NH4-N removal.
Kargi
Fikret
F
Department of Environmental Engineering, Dokuz Eylul University, Buca, Izmir, Turkey. fikret.kargi@deu.edu.tr
Pamukoglu
M Yunus
MY
D001420:Bacteria, Aerobic / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D002244:Carbon / Q000737:chemistry / Q000378:metabolism*; D008567:Membranes, Artificial; D010100:Oxygen / Q000378:metabolism*; D011208:Powders; D000644:Quaternary Ammonium Compounds / Q000378:metabolism*; D012722:Sewage / Q000382:microbiology; D012989:Soil Pollutants / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000378:metabolism; D018508:Water Purification / Q000379:methods
D008567:Membranes, Artificial; D011208:Powders; D000644:Quaternary Ammonium Compounds; D012722:Sewage; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D002244:Carbon; D010100:Oxygen