ABR,HRT环工史凌霄.doc

2015 届毕业设计（论文） 题 目： HRT对ABR反应器与常规反应器处理效果的对比研究 摘要 COD浓度为2500mg/L、3500mg/L的模拟水样 本次实验的研究结果如下： （1）实验中发现，两个联合反应器中水样的COD去除主要发生在厌氧阶段，经过充分的运行时间后，ABR反应器的COD去除率在95%左右，常规厌氧反应器的COD去除率也达到了90%以上。ABR反应器较常规厌氧反应器COD去除效果更好更稳定。 （2）ABR与常规厌氧反应器对于氨氮的处理效果并不是特别明显，ABR反应器的氨氮去处理率为21%，而常规厌氧反应器的氨氮去除率也只有18.86%。 （3）在厌氧阶段HRT为48h，进水COD浓度为2300mg/L、3200mg/L。开始运行时，COD与氨氮的去除效果未达到最佳，在运行48h后，去除效果开始稳定，工艺Ⅰ 和工艺ⅡCOD去除效果出现相似趋势，去除率达到97%左右。工艺Ⅰ 氨氮去除率稳定在60%左右，但在第35天后，氨氮去除率逐渐下降并稳定在54.5%左右；工艺Ⅱ氨氮去除率在66%左右，在第35天后，氨氮去除率逐渐下降并稳定在62.31%左右。 关键词：ABR反应器 常规厌氧反应器 水力停留时间（HRT） 高浓度有机废水处理 Abstract This article with COD concentration of 2500mg/L, simulate water 3500mg/L sample as subjects, The experimental using ABR + biological contact oxidation reactor as a process Ⅰ, conventional anaerobic reactor to process biological contact Ⅱ, comparative study of the technological process Ⅰ, Ⅱ in COD, ammonia treatment effect, while the effects of different HRT, PH, VFA for ABR and conventional anaerobic reactor compartments impact. The results of this experiment are as follows: (1)It was found that both the United reactor water samples COD removal occurred in the anaerobic stage, after sufficient running time, ABR reactor COD removal efficiency of around 95%, conventional anaerobic reactor The COD removal rate reached 90%. ABR reactor than conventional anaerobic reactor COD removal efficiency of better and more stable. (2)ABR conventional anaerobic reactor for the treatment effect of ammonia is not particularly obvious, ammonia treatment rate ABR reactor to less than 30%, while ammonia removal efficiency of conventional anaerobic reactor is also only about 25% . (3) experimental results show that: in the anaerobic stage HRT was 48h, influent concentration of COD 2500mg / L, 3500mg / L. Starts running, the removal of COD and ammonia nitrogen in order to achieve the best, at 96h after operation, began to stabilize in the removal process Ⅰ and removal process ⅡCOD appear similar trend, the removal rat