New development of the anaerobic processand the deninification process by combination with the activated carbon.

将活性碳与厌氧处理或反硝化相结合，有望开创新的工艺运行模式，提高工艺稳定性。1.厌氧处理：采用填充活性碳的厌氧流化床反应器处理含酚废水。即使在进水苯酚突然波动的情况下，苯酚也能在不恶化出水的情况下获得高而稳定的苯酚转化率。另一方面，填充无烟煤的沸腾床反应器稳定性较差，出水水质较差。这些结果明显表明，活性污泥的吸附和解吸在很大程度上有助于提高工艺对进水波动的稳定性。提供了有意的进水波动，以提高总体反应速度。结果表明，在解吸阶段反应速率较高。利用同位素C-13对该生物活性炭法降解底物的机理进行了研究。结果表明，吸附后的苯酚被生物膜直接从活性碳内部转移到生物膜中，而不是通过大量的水输送。这说明在该过程中，生物膜可以从两个侧面获得底物，即主体水侧和活性炭侧。反硝化工艺：采用活性炭柱对无碳源的含硝酸盐水进行反硝化间歇供碳源试验。在投加阶段，活性碳成功地保持了有机碳，在没有投加有机源的情况下，逐渐释放出可供反硝化使用的有机碳。每天只投一次有机饲料，可达到较高的反硝化率或反硝化效果。反硝化作用大部分时间是利用吸附的底物进行的。这种操作模式可以。

Combination of activated carbon with anaerobic treatment or denitrification is expected to create new mode of process operation and improve the process stability. The experiments were conductedon these poinst and the following results were obtained.1.Anaerobic Treatment : Wastewater containing phenol was treated with an anaerobic fluidized bed reactor packed with activated carbon. High and stable conversion of phenol to methane was obtained without deteriorating the effluent even when influent phenol was suddenly fluctuated. On the other hand, fluidized bed reactor packed with anthracite failed to show such high stability with leaving poor effluent quality. These results obviously showed that adsorption and desorption by the activatedsludge contributed much to the high process stability against influent fluctuation. Intentional influent fluctuation was provided to improve the overall reaction rate. The results indicate that the reaction rate was high during the desorption stage. Isotope C-13 was used to clarify the mechanisms of substrate degradation in this biological activated carbon process. The results showed that the adsorbed phenol was degraded by biofilm through direct transfer of phenol from the inside of activated carbon to the biofilm rather than transportation thorough bulk water. This suggests that the biofilm can obtain substrate from both sides, namely bulk water side and activated carbon side in this process.2. Denitrification Process : Intermittent supply of carbon source in denitrification of water containing nitrate without carbon source was attempted with using activated carbon column. The activated carbon successfully held organic carbon during feeding stage and gradually releasedit for denitrification during no feeding of organic source. Reasonably high percentage or denitrification was achieved with organic feeding of only once a day. Denitrification took place by using the adsorbed substrate in most of the time. This mode of operation can.