エネルギー回収型自己造粒・自己流動スラッジブランケットの開発

研究了上流式厌氧膜式反应器（UASB）处理高硫氨发酵废水的颗粒化过程及处理特性。结果表明，在处理含硫化物和富氨废水的过程中，可以形成颗粒，并且不会产生硫化物的抑制作用。因此，UASB工艺处理难处理废水具有较好的稳定性。实验结果表明，两级接触曝气工艺适合作为UASB处理后废水的深度处理工艺。因此，认为UASB + 2级接触曝气组合工艺是处理高硫氨发酵废水的最佳工艺。以高浓度鱼食加工大豆废水为研究对象，探讨了UASB反应器的启动及细菌结构分析。启动完成后，在TOC负荷率为10-12kg-TOC/m3/d的条件下，TOC去除率为60-70%，脂质去除率为30-50%。污泥床上部颗粒几乎全部由甲烷菌样菌组成，下部颗粒呈多层细菌结构。因此，鱼食品加工中大豆废水中TOD和脂质去除的基本和实用工艺被认为是建立。

In this study, the formation process of granule and treatment characteristics were discussed in an Upflow Anaerobic Blanket Reactor (UASB) treating a fermentation process wastewater consisting of high sulfide and ammonia. The results indicated that the granules could be developed in the process for treating sulfide- and anmmonia-rich wastewater, and inhibition caused by sulfide was not occured. Therfore, the UASB process was shown a better stability for treating the refractory wastwater.the experimental results indicated that 2-stage contact aeration process was suitable process as advanced wastewater treatment of treaed wastewater from UASB.Therefore, it was thought that the combination process of UASB and 2-stage contact aeration was optimum process of treating treating a fermentation process wastewater consisting of high sulfide and ammonia.The start-up of UASB reactor and analyzes of bacterial structures were discussed by using high concentration soy wastewater from fish food process. When start-up was finished, 60-70% TOC removal efficiency, and 30-50% lipid removal efficiency were obtained under the TOC loading rate of 10-12kg-TOC/m3/day. Almost all of the granules in the upper part of sludge bed consisted of Methanothrix-like bacteria while the granules in the lower part presented multi-layr bacterial structllres. Consequently, The basicand practical process for TOD and lipid removal from soy wastewater from fish food process was thought to be established.