Treatment of phenolics containing synthetic wastewater in an internal loop airlift bioreactor (ILALR) using indigenous mixed strain of Pseudomonas sp. under continuous mode of operation.
Treatment of phenolics containing synthetic wastewater in an internal loop airlift bioreactor (ILALR) using indigenous mixed strain of Pseudomonas sp. under continuous mode of operation.
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DOI：
10.1016/j.biortech.2009.03.053
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发表时间：
2009-09
影响因子：
11.4
通讯作者：
P. Saravanan;K. Pakshirajan;Prabirkumar Saha
中科院分区：
文献类型：
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作者：
P. Saravanan;K. Pakshirajan;Prabirkumar Saha
本研究的范围是评估内循环气升式生物反应器（ILALR）处理含苯酚和间甲酚的合成废水，在单组分和多组分系统的性能。该方法中使用的微生物是从废水处理厂分离的假单胞菌属的土著混合菌株。反应器在较低和较高的水力停留时间（HRT）下操作，4.1冲击负荷实验中，苯酚在HRT为8.3h时达到最大浓度800 mg/L，间甲酚在HRT为4.1h时达到最大浓度500 mg/L。当HRT为8.3h时，苯酚和间甲酚单独降解时，研究表明苯酚和间甲酚都完全降解。基于22完全析因实验设计，进行了苯酚和间甲酚作为混合物存在的实验。
The scope of this study is to evaluate the performance of internal loop airlift bioreactor (ILALR) in treating synthetic wastewater containing phenol and m-cresol, in single and multi component systems. The microbe utilized in the process was an indigenous mixed strain of Pseudomonas sp. isolated from a wastewater treatment plant. The reactor was operated at both lower and higher hydraulic retention times (HRTs) i.e., 4.1 and 8.3h, respectively, by providing an inlet feed flow rate of 5 and 10mL/min. Shock loading experiments were also performed up to a maximum concentration of 800mg/L for phenol at 8.3h HRT and 500mg/L for m-cresol at 4.1h HRT. The study showed complete degradation of both phenol and m-cresol, when they were degraded individually at a HRT of 8.3h. Experiments with both phenol and m-cresol present as mixtures were performed based on the 22full factorial design of experiments.