摘要
为探究不同碳源对厌氧氨氧化(ANAMMOX)菌耦合好氧氨氧化菌(AOB)以及ANAMMOX菌耦合短程反硝化菌脱氮性能的影响,在进水NH4^+-N与NO2^--N质量浓度比为1.0∶0.6和KHCO3质量浓度为1.25~2.50 g/L的条件下运行系列ANAMMOX耦合AOB血清瓶。研究结果表明:当KHCO3质量浓度分别为2.00 g/L和2.50 g/L时NH4^+-N去除率为100%,可积累NO2^--N质量浓度达12.0 mg/L以上。在进水质量浓度ρ(NH4^+-N)/ρ(NO3^--N)为1∶1的条件下运行ANAMMOX耦合短程反硝化序批式反应器(ASBR),第80 min时NH4+-N去除率为100%;当进水质量浓度ρ(NH4+-N)/ρ(NO-3-N)为1∶2,COD质量浓度为405.1 mg/L时,最高可积累NO-2-N质量浓度达82.2 mg/L,第120 min时NH+4-N去除率为100%;当ASBR中过量通入NO-3-N时,可使NO-2-N的积累时间延长,此时颗粒污泥形态较完整。ANAMMOX耦合短程反硝化菌可利用葡萄糖作为电子供体进行短程反硝化,经过葡萄糖驯化后,NH+4-N去除率提高到43.8%。
In order to explore the nitrogen removal performance of anaerobic ammonium oxidation(ANAMMOX)coupled AOB and partial denitrification bacteria with different carbon sources, ANAMMOX serum bottle was operated when the mass concentration ratio of NH4^+-N and NO2^--N was 1.0:0.6 and the mass concentration of inorganic carbon source was 1.25~2.50 g/L. The results show that the removal rate of NH4^+-N is 100% and the mass concentration of accumulative NO2^--N is more than 12.0 mg/L when the mass concentration of inorganic carbon source is 2.00 g/L and 2.50 g/L. The ANAMMOX coupled partial denitrification sequencing batch reactor(ASBR) is operated when the mass concentration ratio of(ρ(NH4^+-N)/ρ(NO3^--N)) is 1:1, and the removal rate of NH4^+-N is 100% in the 80 th minute. When the mass concentration ratio of(ρ(NH4^+-N)/ρ(NO3^--N)) is 1:2 and the mass concentration of COD is 405.1 mg/L, the highest nitrite nitrogen mass concentration is 82.2 mg/. In the 120 th minute, the removal rate of NH4^+-N is 100%. When ASBR is operated in excess NNO3^--N, the accumulation time of NO2^--N is extended. The SEM images indicate that the ANAMMOX granular sludge morphology is complete.ANAMMOX coupled partial denitrification bacteria can use glucose as electron donor for partial denitrification.After glucose acclimation, the removal rate of NH4^+-N increases to 43.8%.
作者
吕振
钱玉兰
李燕
李亮
LU Zhen;QIAN Yulan;LI Yan;LI Liang(School of Environment Science and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,China;Xuzhou Hydraulic Architectural D&R Institute,Xuzhou 221000,China)
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2019年第11期2656-2664,共9页
Journal of Central South University:Science and Technology
基金
国家自然科学基金资助项目(51602344)
江苏省自然科学基金资助项目(BK20170249)~~
