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Treatment of pharmaceutical wastewater containing tylosin in an anaerobic-anaerobic reactor system

机译:厌氧-厌氧反应器系统处理含泰乐菌素的制药废水

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摘要

Effluents from manufacturing operations in the pharmaceutical industry, such as antibiotic formulation, usually contain recalcitrant compounds. An approach towards appropriate technology for the treatment of pharmaceutical wastewaters has become imperative due to strict water quality legislation for environmental protection. In the present study, an Up-Flow Anaerobic Stage Reactor (UASR) and a Porous Membrane Activated Sludge Reactor (PMASR), operating in series, were used to treat pharmaceutical wastewater containing the macrolide antibiotic Tylosin. The performance of UASR treating real pharmaceutical wastewater at various organic loading rates (OLR) (0.43 to 3.73 kg COD.m–3.d–1) was investigated. Effluent from the UASR was passed directly into a PMASR system in a continuous process. At a reactor OLR of 1.86 kg COD.m–3.d–1 (hydraulic retention time (HRT), 4 d), the soluble COD reduction was around 70 - 75% (average specific degradation rate (SDR), 1.29 kg COD.m–3.d–1 ) an average of 95% Tylosin reduction was achieved in the UASR. During this period, the soluble COD removal efficiency of the PMASR was 63–69% (average SDR, 0.37 kg COD.m–3.d–1). The combined UASR – PMASR treatment system was slightly more effective with 87–90% COD and average 97% Tylosin removal. The results indicate successful treatment of the pharmaceutical wastewater, and confirm Tylosin degradation, providing further evidence that Tylosin can be degraded efficiently in anaerobic-aerobic environments.
机译:制药行业生产过程中产生的废水,例如抗生素制剂,通常都含有难降解的化合物。由于严格的环境保护水质法规,采用适当技术处理制药废水的方法已成为当务之急。在本研究中,串联运行的上流厌氧段反应器(UASR)和多孔膜活化污泥反应器(PMASR)用于处理含有大环内酯类抗生素泰乐菌素的制药废水。研究了UASR处理各种有机载量(OLR)(0.43至3.73 kg COD.m–3.d–1)下的实际制药废水的性能。 UASR的流出物以连续过程直接传递到PMASR系统。在反应堆OLR为1.86 kg COD.m–3.d–1(水力停留时间(HRT),4 d)时,可溶性COD减少量约为70-75%(平均比降解率(SDR),1.29 kg COD .m–3.d–1)在UASR中泰乐菌素平均降低了95%。在此期间,PMASR的可溶性COD去除效率为63-69%(平均SDR,0.37 kg COD.m-3.d-1)。联合使用UASR – PMASR处理系统的COD效率为87-90%,泰乐菌素平均去除率为97%,效果稍好。结果表明成功处理了制药废水,并确认了泰乐菌素的降解,提供了进一步的证据表明泰乐菌素可以在厌氧-好氧环境中被有效降解。

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