TY - JOUR
T1 - Determination of optimum operating conditions of an acidification reactor treating a chemical synthesis-based pharmaceutical wastewater
AU - Oktem, Yalcin Askin
AU - Ince, Orhan
AU - Donnelly, Tom
AU - Sallis, Paul
AU - Ince, Bahar Kasapgil
PY - 2006/11
Y1 - 2006/11
N2 - In this study, the optimum operating conditions of a lab-scale completely stirred acidogenic reactor treating a chemical synthesis-based pharmaceutical wastewater were determined. Individual effects of hydraulic retention time (HRT), organic loading rate (OLR) and pH on the degree of acidification were investigated at a mesophilic temperature (35 ± 1 °C), for HRT in the range 8-24 h, OLR up to 14 kg COD/m3 d and pH in the range of 5.0-6.3. A maximum acidification level of 44% and COD removal efficiency of 13%, were obtained at an OLR of 13 kg COD/m3 d at pH of 5.5 ± 0.1 with an HRT of 12 h. Under these conditions, acetic, propionic and n-butyric acids were found to be predominant volatile fatty acids in the acidogenic reactor.
AB - In this study, the optimum operating conditions of a lab-scale completely stirred acidogenic reactor treating a chemical synthesis-based pharmaceutical wastewater were determined. Individual effects of hydraulic retention time (HRT), organic loading rate (OLR) and pH on the degree of acidification were investigated at a mesophilic temperature (35 ± 1 °C), for HRT in the range 8-24 h, OLR up to 14 kg COD/m3 d and pH in the range of 5.0-6.3. A maximum acidification level of 44% and COD removal efficiency of 13%, were obtained at an OLR of 13 kg COD/m3 d at pH of 5.5 ± 0.1 with an HRT of 12 h. Under these conditions, acetic, propionic and n-butyric acids were found to be predominant volatile fatty acids in the acidogenic reactor.
KW - Anaerobic digestion
KW - Chemical synthesis-based pharmaceutical wastewater
KW - Degree of acidification
KW - HRT
KW - OLR
KW - Optimum operating conditions
UR - http://www.scopus.com/inward/record.url?scp=33749265274&partnerID=8YFLogxK
U2 - 10.1016/j.procbio.2006.05.016
DO - 10.1016/j.procbio.2006.05.016
M3 - Article
AN - SCOPUS:33749265274
SN - 1359-5113
VL - 41
SP - 2258
EP - 2263
JO - Process Biochemistry
JF - Process Biochemistry
IS - 11
ER -
