School of Environmental Science and Engineering, Shanghai Jiaotong University, 800 DongChuan Road, Shanghai 200240, PR China.
J Hazard Mater. 2010 Jun 15;178(1-3):895-9. doi: 10.1016/j.jhazmat.2010.02.022. Epub 2010 Feb 12.
Algal-based immobilization process was applied to treat the effluent from a secondary wastewater treatment plant. Batch test proved that algae could attach onto fiber-bundle carrier in 7 days, and then the algal-based immobilization reactor could reduce TN (total nitrogen) and TP (total phosphorus) significantly within 48 h. Based on the above investigations, the hydraulic retention time (HRT) of the algal-based immobilization reactor in continuous operation mode was determined to be 2 days. During the 91 days of experiment on the treating secondary effluent of Guang-Rao wastewater treatment plant, it was found that the fiber-bundle carrier could collect the heterobacteria and nitrifying bacteria gradually, and thus improved the COD removal efficiency and nitrification performance step by step. Results of the continuous operation indicated that the final effluent could meet the Chinese National First A-level Sewage Discharge Standard when the algal-based immobilization reactor reached steady state.
采用基于藻类的固定化工艺处理二级污水处理厂的出水。批式试验证明，藻类可在 7 天内附着在纤维束载体上，然后藻类固定化反应器可在 48 小时内显著降低 TN（总氮）和 TP（总磷）。基于以上研究，确定藻类固定化反应器在连续运行模式下的水力停留时间（HRT）为 2 天。在连续运行 91 天处理广饶污水处理厂二级出水的实验中，发现纤维束载体可逐渐收集异养菌和硝化菌，从而逐步提高 COD 去除效率和硝化性能。连续运行的结果表明，当藻类固定化反应器达到稳定状态时，最终出水可达到中国国家一级 A 标准。
