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首页> 外文会议>The International Conference on Advances in Chemical Technologies for Water and Wastewater Treatment(2008年化学技术对水及废水处理国际研讨会)论文集 >Effects of HRT and SRT on fate of linear alkylbenzene sulphonate in anaerobic-anoxic-aerobic activated sludge wastewater treatment system
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Effects of HRT and SRT on fate of linear alkylbenzene sulphonate in anaerobic-anoxic-aerobic activated sludge wastewater treatment system

机译：HRT和SRT对厌氧-缺氧-好氧活性污泥废水处理系统中线性烷基苯磺酸盐命运的影响

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Lab-scale experiments were conducted to investigate the effects of HRT and SRT on the removal potenfial and fate of linear alkylbenzene sulphonate(LAS)in an anaerobic-anoxic-aerobic(AAA)activated sludge wastewater treatment system.In the range from 5 to 14 hours.HRT had no significant effect on LAS removal.However.Less LAS was accumulated in the waste sludge with longer HRT.LAS removal efficiencies were above 99％when SRT increased from 10 to 25 days.Higher LAS degradation emciency was achieved when SRT became longer.The optimal HRT and SRT fbr both nutrients(nitrogen and phosphorus)and LAS removal were 8 h and 15 d,respectively.At these optimal HRT and SRT,among the totally removed LAS.About 94.15％was degraded by activated sludge process;5.47％accumulated in the system:0.25％was released in the effluent and 0.13％remained in the waste sludge.The kinetic model formulated in this paper could well forecast the quality of the effluent from anaerobic tank,anoxic tank.Aerobic tank and the final effluenL The relative error of the model was less than 8％.
机译：进行了实验室规模的实验，以研究HRT和SRT对厌氧-厌氧-好氧（AAA）活性污泥废水处理系统中线性烷基苯磺酸盐（LAS）去除潜能和去垢的影响。范围为5至14 HRT对LAS的去除没有显着影响，但是，在HRT较长的污泥中积累的LAS少。当SRT从10天增加到25天时，LAS去除效率达到99％以上。当SRT变为LAS时，LAS降解的效率更高。营养物（氮，磷）和LAS去除的最佳HRT和SRT分别为8 h和15 d。在这些最佳HRT和SRT下，完全去除的LAS中有约94.15％的活性污泥降解了该HRT和SRT。系统中的累积量为5.47％：废水中释放出0.25％，废物污泥中残留为0.13％。本文建立的动力学模型可以很好地预测厌氧池，缺氧池，好氧池及最终废水的质量。流出物该模型的相对误差小于8％。

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