| 普通活性污泥系统曝气池中投加浮动填料提高硝化能力的研究 |
| 摘要点击 920 全文点击 1450 投稿时间：1997-05-17 |
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| 中文关键词 浮动填料 硝化 硝化菌 活性污泥法 水力停留时间 氨氮 |
| 英文关键词 floating biomass-supporting packing nitrification nitrobacteria activated sludge system ammonia |
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| 中文摘要 |
| 在普通活性污泥系统的曝气池中投加一定量的浮动填料可增加曝气池中的生物体量达6.5g/L,能提高硝化菌的附着量和阻止硝化菌的流失。实验证明,在浮动填料活性污泥系统中HRT(或溶积负荷)对硝化能力的影响远小于普通活性污泥系统；当HRT为8h,泥龄为3d时,普通活性污泥系统对氨氮的去除率仅25%,而浮动填料活性污泥系统的去除率可达71%.在低泥龄时,浮动填料活性污泥系统中氨氮降解过程遵循动力学方程U=Umax×Se(Ks+Se).在本实验条件下,Umax和Ks分别为14.66g/(m2·d)与10.72mg/L. |
| 英文摘要 |
| The biomass concentration could be augmented to 6.5g/L when some porous floating biomass-supporting packing were added in the tank of conventional activated sludge system.The porous floating packing can increase the adsorption of nitrobacteria and thus retard their loss.It is verified by the experiments that the influence of hydraulic rentention time to the nitrification in the suspended carrier activated sewage(SCAS)is much less than in the conventional activated sludge process(ASP).When the HRT is 8h and the sludge age is 3d,the removal of ammonia is 71% in the SCAS and only 25% in the ASP.It can be modeled with the dynamic equation of U=Umax × Se(Ks+Se)that the degradation ammonia in the SCAS at the lower sludge age;the value of Umax and Ks is 14.66g/(m2·d)and 10.72mg/L respectively under this experimental condition. |
