基于厌氧氨氧化工艺的脱氮菌耦合试验

Coupling Nitrogen Removal Bacteria Based on the ANAMMOX Process

采用2个SBR反应器,分别培养了含有硝酸盐反硝化菌和亚硝酸盐反硝化菌的活性污泥,同时接种具有厌氧氨氧化(ANAMMOX)功能的活性污泥,研究了异养反硝化菌与ANAMMOX菌的协同代谢效能.结果表明,亚硝酸盐反硝化菌的异养反硝化性能要好于硝酸盐反硝化菌,而与ANAMMOX菌的耦合效果则相反,在好氧运行条件下,2个反应器同时具有较好的硝化功能,2个反应器中亚硝酸盐的累积率分别为62.2%和87.3%.

Two SBRs are first used nitrate and nitrite, respectively to train activated sludge of heterotrophic Then, the activated sludge that has denitrification bacteria for ANAMMOX function is simultaneously inoculated into the two reactors. The efficiency of the coupling activated sludge includingheterotrophic denitrification bacteria and ANAMMOX bacteria is researched. Experimental results show that the efficiency of heterotrophic denitrification of nitrite is better than that of nitrate. However, the coupling effect with ANAMMOX bacteria is on the contrary. Under the condition of aeration, the tworeactors have better nitrification function at the same time, and the accumulation ratios of nitrite are 62.2% and 87.3% , respectively.