TY - JOUR
T1 - Characterization of organic particulates present in milk factory process waters used for reuse along with aerobically digested effluent wastewater
AU - Verheyen, Vincent
AU - Cruickshank, Alicia
AU - Wild, Karl
AU - Heaven, Michael
AU - McGee, R
AU - Watkins, Mark
AU - Nash, David
PY - 2011
Y1 - 2011
N2 - Wastewater from a dairy processor is being reused and recycled both within the plant and for irrigation. Flash pyrolysis GC-MS was used to examine nitrogen and phenol containing compounds (M.W.=35 to 450g/mol) in the particulate fraction of the milk condensate, combined clean wastewater and aerobic bioreactor effluent. For comparison, the particulates were also prepared for standard GC-MS analyses using conventional solvent extraction methods. Compounds detected by pyrolysis GC-MS were found mostly in the bioreactor with the amino acid arginine (220mg/kg) and the amino acid derivative 1-methyl-5-oxo-L-proline methyl ester (130mg/kg) found at the highest concentrations. In comparison, sterols detected in the effluent were found at higher concentrations when using solvent extraction indicating some degradation with pyrolysis GC-MS. However, with few exceptions, particulates were generally found not to act as passive collectors capable of concentrating less water soluble chemicals.
AB - Wastewater from a dairy processor is being reused and recycled both within the plant and for irrigation. Flash pyrolysis GC-MS was used to examine nitrogen and phenol containing compounds (M.W.=35 to 450g/mol) in the particulate fraction of the milk condensate, combined clean wastewater and aerobic bioreactor effluent. For comparison, the particulates were also prepared for standard GC-MS analyses using conventional solvent extraction methods. Compounds detected by pyrolysis GC-MS were found mostly in the bioreactor with the amino acid arginine (220mg/kg) and the amino acid derivative 1-methyl-5-oxo-L-proline methyl ester (130mg/kg) found at the highest concentrations. In comparison, sterols detected in the effluent were found at higher concentrations when using solvent extraction indicating some degradation with pyrolysis GC-MS. However, with few exceptions, particulates were generally found not to act as passive collectors capable of concentrating less water soluble chemicals.
UR - http://www.sciencedirect.com/science/article/pii/S0960852410014136
U2 - 10.1016/j.biortech.2010.08.053
DO - 10.1016/j.biortech.2010.08.053
M3 - Article
SN - 0960-8524
VL - 102
SP - 2118
EP - 2125
JO - Bioresource Technology
JF - Bioresource Technology
IS - 2
ER -