Chae S R, Kang S T, Watanabe Y, Shin H S
Department of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
Water Res. 2006 Jun;40(11):2161-7. doi: 10.1016/j.watres.2005.10.043. Epub 2006 May 23.
A novel vertical submerged membrane bioreactor (VSMBR) composed of anoxic and oxic zones in one reactor was developed in an attempt to reduce the problems concerning effective removal of pollutants from synthetic wastewater including glucose as a sole carbon source as well as membrane fouling. The optimal volume ratio of anoxic zone/oxic zone was found as 0.6. The desirable internal recycle rate and hydraulic retention time (HRT) for effective nutrient removal were 400% and 8h, respectively. Under these conditions, the average removal efficiencies of total nitrogen (T-N) and total phosphorus (T-P) were 75% and 71%, respectively, at the total chemical oxygen demand (T-COD)/T-N ratio of 10. In addition, the VSMBR showed high specific removal rates of nitrogen and phosphorus while the biomass growth yield from the reactor was about 20% of the conventional activated sludge process.
开发了一种新型的垂直淹没式膜生物反应器（VSMBR），该反应器在一个反应池中包含缺氧区和好氧区，旨在解决从含葡萄糖作为唯一碳源的合成废水中有效去除污染物以及膜污染的问题。发现缺氧区/好氧区的最佳体积比为0.6。有效去除营养物所需的理想内循环率和水力停留时间（HRT）分别为400%和8小时。在这些条件下，在总化学需氧量（T-COD）/总氮（T-N）比为10时，总氮（T-N）和总磷（T-P）的平均去除效率分别为75%和71%。此外，VSMBR显示出高的氮和磷比去除率，而该反应器中生物量的生长产量约为传统活性污泥法的20%。
