Tian Jia-yu, Chen Zhong-lin, Yang Yan-ling, Liang Heng, Nan Jun, Wang Zhao-zhi, Li Gui-bai
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
Bioresour Technol. 2009 Dec;100(24):6243-9. doi: 10.1016/j.biortech.2009.07.008. Epub 2009 Aug 13.
The hybrid process of biological activated carbon (BAC) and submerged membrane bioreactor (sMBR) was evaluated for the drinking water treatment from polluted raw water, with the respective hydraulic retention time of 0.5 h. The results confirmed the synergetic effects between the BAC and the subsequent sMBR. A moderate amount of ammonium (54.5%) was decreased in the BAC; while the total removal efficiency was increased to 89.8% after the further treatment by the sMBR. In the hybrid process, adsorption of granular activated carbon (in BAC), two stages of biodegradation (in BAC and sMBR), and separation by the membrane (in sMBR) jointly contributed to the removal of organic matter. As a result, the hybrid process managed to eliminate influent DOC, UV(254), COD(Mn), TOC, BDOC and AOC by 26.3%, 29.9%, 22.8%, 27.8%, 57.2% and 49.3%, respectively. Due to the pre-treatment effect of BAC, the membrane fouling in the downstream sMBR was substantially mitigated.
对生物活性炭（BAC）与浸没式膜生物反应器（sMBR）的混合工艺进行了评估，用于处理受污染原水的饮用水，各自的水力停留时间为0.5小时。结果证实了BAC与后续sMBR之间的协同效应。BAC中适量的铵（54.5%）减少；而经过sMBR进一步处理后，总去除效率提高到89.8%。在混合工艺中，颗粒活性炭的吸附（在BAC中）、两个阶段的生物降解（在BAC和sMBR中）以及膜分离（在sMBR中）共同促进了有机物的去除。结果，混合工艺分别成功去除了进水的溶解性有机碳（DOC）、紫外线吸光度（UV(254)）、高锰酸盐指数（COD(Mn)）、总有机碳（TOC）、生物可降解溶解性有机碳（BDOC）和可同化有机碳（AOC）的26.3%、29.9%、22.8%、27.8%、57.2%和49.3%。由于BAC的预处理作用，下游sMBR中的膜污染得到了显著缓解。
