Abstract:The startup of ANAMMOX coupling heterotrophic denitrifying reactor and the influence of concentration of phenol on the nitrogen removal performance of coupled reactor were investigated. Cultivated with 2L (20% of effective volume of reactor) anaerobic ammonia oxidation granular sludge that the volatile suspended solids (MLVSS) was 6000mg/L, anaerobic ammonia oxidation coupling heterotrophic denitrifying was started up successfully for 86days under the condition of pH 7.8, water temperature 25℃ and hydraulic detention time (HRT) 1.5h. The steady phase, the average removal rates of NH4+-N、NO2--N and TN were 85.39%,86.12% and 79.85% respectively, the average volumetric load of total nitrogen and the average removal load of total nitrogen were 2.63kg/(m3·d) and 2.10kg/(m3·d) respectively. ANAMMOX granular sludge was coated with phenol denitrifying bacteria. The relationship between heterotrophic denitrification and anammox was cooperative and competitive in the system. The activity of ANAMMOX bacteria was suppressed strongly when the concentration of phenol30.3mmol/L, the competition between phenol denitrifying bacteria and ANAMMOX bacteria was intensified as the increasing of concentration of phenol.When the concentration of phenol was 0.2mmol/L, the denitrification effect of system is best considering from denitrification and the stability of system. The ratio of removed NH4+-N, reomved NO2--N and generated NO3--N was 1:1.52:0.11.
刘常敬, 李泽兵, 郑照明, 赵白航, 李军. 苯酚对厌氧氨氧化工艺耦合反硝化的启动及脱氮性能的影响[J]. 中国环境科学, 2014, 34(5): 1145-1151.
LIU Chang-Jing, LI Ze-Bing, ZHENG Zhao-Ming, ZHAO Bai-Hang, LI Jun. Effect of phenol on startup and nitrogen removal performance of ANAMMOX coupling denitrifying. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(5): 1145-1151.