Seasonal variation of diclofenac concentration and its relation with wastewater characteristics at two municipal wastewater treatment plants in Turkey.
Seasonal variation of diclofenac concentration and its relation with wastewater characteristics at two municipal wastewater treatment plants in Turkey.
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DOI：
10.1016/j.jhazmat.2014.03.015
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发表时间：
2014-05
影响因子：
13.6
通讯作者：
S. Sari;Gamze Ozdemir;C. Yangin-Gomec;G. Zengin;E. Topuz;Egemen Aydın;E. Pehlivanoglu-Mantas;D. Okutman Tas
中科院分区：
文献类型：
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作者：
S. Sari;Gamze Ozdemir;C. Yangin-Gomec;G. Zengin;E. Topuz;Egemen Aydın;E. Pehlivanoglu-Mantas;D. Okutman Tas
对两个城市污水处理厂的不同处理单元进行了为期一年的药物活性化合物双氯芬酸监测，以评估其季节性变化和去除效率。还进行了常规废水表征，以评估常规参数与双氯芬酸之间可能的关系。两个污水处理厂的进水和出水双氯芬酸浓度分别在295-1376和119-1012 ng/L范围内。结果表明，两个污水处理厂的双氯芬酸去除率均在夏季较高。虽然在WWTP_1中观察到双氯芬酸去除的一致性，但在WWTP_2中观察到显著的季节性波动。双氯芬酸在污水处理厂的主要去除机制通常是生物（55%），其次是紫外线消毒（27%）。当对污水处理厂处理单元的双氯芬酸去除率进行评估时，包括紫外线消毒单元在内的处理厂的双氯芬酸去除率显著增加。统计分析表明，进水常规参数中双氯芬酸与悬浮物浓度相关性较高，双氯芬酸去除率与脱氮效率相关性较高。
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.