title: Effect of fermented wastewaters from butter production on phosphates removal in a sequencing batch reactor.
abstract: This study determined the potential for fermented wastewaters from butter production plant to act as a carbon source to facilitate phosphates removal. Synthetic dairy wastewaters were treated using SBR, with doses of fermented wastewaters. An increase in the fermented wastewater doses were found to improve the effluent quality in respect of phosphates and nitrates. The lowest concentrations of phosphate and nitrates, respectively 0.10 ± 0.04 mg PO(4)-PL(-1) and 1.03 ± 0.22 mg NO(3)-NL(-1), were noted in the effluent from the reactor fed with fermented wastewaters in a dose of 0.25 L d(-1) per 0.45 L d(-1) of wastewaters fed to the reactor. In the case of the two highest doses, an increase in effluent COD was stated. The higher effectiveness resulted from the fact that the introduction of fermented wastewaters caused an increase in the easily-available carbon compounds content and the predominance of acetic acid amongst VFAs available to dephosphatating and denitrifying bacteria.
authors: University of Warmia and Mazury in Olsztyn, Department of Environmental Protection Engineering ul. Prawochenskiego 1, Olsztyn 10-900, Poland. jawoj@uwm.edu.pl
authors: Wojciech
authors: W
authors: Janczukowicz
authors: Joanna
authors: J
authors: Rodziewicz
authors: Arthur
authors: A
authors: Thornton
authors: Kamila
authors: K
authors: Czaplicka
mesh_terms: D061249:Batch Cell Culture Techniques / Q000295:instrumentation*; D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D002079:Butter; D003612:Dairying; D005232:Fatty Acids, Volatile / Q000032:analysis; D005285:Fermentation; D009566:Nitrates / Q000302:isolation & purification; D010710:Phosphates / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification
chemical_list: D002079:Butter; D005232:Fatty Acids, Volatile; D009566:Nitrates; D010710:Phosphates; D062065:Wastewater; D014874:Water Pollutants, Chemical