The shortcut nitrification process of high ammonia wastewater (concentration of NH4+ - N is higher than 260 mg L-1) in SBR is stable when low DO concentration and high DO concentration changed alternately.

• SBR内的高氨废水(NH_4~+-N浓度大于260mg·L~(-1))在高低溶解氧交替环境下实现的短程硝化过程较为稳定。