The starting-up of upflow anaerobic sludge blanket (UASB)-anaerobic ammonium oxidation (ANAMMOX) process has been investigated comparatively in two 15 L UASB reactors. To Reactor A, sponge filler is added and to Reactor B ,no filler is added. When the temperature is (33±2)℃ and influent water pH 6.5-7.5 ,the reactors can be started up. The results show that these two reactors have undergone three stages:adaptation period,improving period and stabilizing period. The removing rates of NH4+-N and NO2--N are 99.8% and 99.9%,respectively ,when Reactor A goes to stabilizing period in 80 d. The removing rates of NH4+-N and NO2--N reach 98.1% and 98.9% , respectively,when Reactor B goes to stabilizing period in 105 d. The sludge color in Reactor A is brown, with small red particles and the sludge in Reactor B is dark brown.%对比研究了2种UASB-厌氧氨氧化反应器的启动.采用2个15L UASB反应器A、B,A添加海绵填料,B无填料,在温度为(33±2)℃,进水pH为6.5～7.5的条件下启动反应器.结果表明,2个反应器均经历了适应期、提高期和稳定期3个阶段,A反应器在80d进入稳定期,氨氮和亚硝氮去除率达99.8％和99.9％,B反应器在105d进入稳定期,氨氮和亚硝氮去除率达98.1％和98.9％.A反应器污泥为褐色,并有红色颗粒污泥,B反应器污泥颜色为深褐色.
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