TY - JOUR
T1 - Seasonal variation of diclofenac concentration and its relation with wastewater characteristics at two municipal wastewater treatment plants in Turkey
AU - Sari, Sevgi
AU - Ozdemir, Gamze
AU - Yangin-Gomec, Cigdem
AU - Zengin, Gulsum Emel
AU - Topuz, Emel
AU - Aydin, Egemen
AU - Pehlivanoglu-Mantas, Elif
AU - Okutman Tas, Didem
PY - 2014/5/15
Y1 - 2014/5/15
N2 - The pharmaceutically active compound diclofenac has been monitored during one year at separate treatment units of two municipal wastewater treatment plants (WWTPs) to evaluate its seasonal variation and the removal efficiency. Conventional wastewater characterization was also performed to assess the possible relationship between conventional parameters and diclofenac. Diclofenac concentrations in the influent and effluent of both WWTPs were detected in the range of 295-1376 and 119-1012. ng/L, respectively. Results indicated that the higher diclofenac removal efficiency was observed in summer season in both WWTPs. Although a consistency in diclofenac removal was observed in WWTP_1, significant fluctuation was observed at WWTP_2 based on seasonal evaluation. The main removal mechanism of diclofenac in the WWTPs was most often biological (55%), followed by UV disinfection (27%). When diclofenac removal was evaluated in terms of the treatment units in WWTPs, a significant increase was achieved at the treatment plant including UV disinfection unit. Based on the statistical analysis, higher correlation was observed between diclofenac and suspended solids concentrations among conventional parameters in the influent whereas the removal of diclofenac was highly correlated with nitrogen removal efficiency.
AB - The pharmaceutically active compound diclofenac has been monitored during one year at separate treatment units of two municipal wastewater treatment plants (WWTPs) to evaluate its seasonal variation and the removal efficiency. Conventional wastewater characterization was also performed to assess the possible relationship between conventional parameters and diclofenac. Diclofenac concentrations in the influent and effluent of both WWTPs were detected in the range of 295-1376 and 119-1012. ng/L, respectively. Results indicated that the higher diclofenac removal efficiency was observed in summer season in both WWTPs. Although a consistency in diclofenac removal was observed in WWTP_1, significant fluctuation was observed at WWTP_2 based on seasonal evaluation. The main removal mechanism of diclofenac in the WWTPs was most often biological (55%), followed by UV disinfection (27%). When diclofenac removal was evaluated in terms of the treatment units in WWTPs, a significant increase was achieved at the treatment plant including UV disinfection unit. Based on the statistical analysis, higher correlation was observed between diclofenac and suspended solids concentrations among conventional parameters in the influent whereas the removal of diclofenac was highly correlated with nitrogen removal efficiency.
KW - Conventional parameters
KW - Micropollutants
KW - Municipal wastewater treatment
KW - Pharmaceutical compound
KW - Priority pollutant
UR - http://www.scopus.com/inward/record.url?scp=84897440085&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2014.03.015
DO - 10.1016/j.jhazmat.2014.03.015
M3 - Article
C2 - 24709411
AN - SCOPUS:84897440085
SN - 0304-3894
VL - 272
SP - 155
EP - 164
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -
