中南大学学报（自然科学版）Issue(1)：344-349,6.DOI:10.11817/j.issn.1672-7207.2016.01.047
常温下厌氧氨氧化组合工艺处理低C与N质量浓度比的城市污水的脱氮除磷性能
Nitrogen and phosphorus removal from low mass concentration ratio between C and N municipal wastewater based on Anammox process at ambient temperatures
摘要
Abstract
A combined process consisting of a sequencing batch reactor and a sequencing batch biofilm reactor (SBR+SBBR) was used to treat municipal wastewater of low mass concentration ratio between C and N (ρ(C)/ρ(N)) at ambient temperature. In the combined system, phosphorus was efficiently removed in the SBR reactor through alternately anaerobic-aerobic operation. Then the effluent of SBR was further treated in the SBBR to remove ammonium through nitritation-Anammox (anaerobic ammonium oxidation) process. SBBR reactor was inoculated with shortcut nitrification sludge and Anammox biofilm. Autotrophic nitrogen removal was successfully achieved by controlling appropriate DO mass concentration from 0.2 to 0.5 mg/L. During the stable operation of the combined system, the influent COD,TN and PO43−-P mass concentrations were 206, 51.52 and 4.09 mg/L, respectively. The average mass concentrations of TN and PO43−-P in effluent were 10.7 and 0.17 mg/L, respectively. The results show that the municipal wastewater of low mass concentration ratio between C and N (ρ(C)/ρ(N)=4) can be well treated in the combined system. The final effluent can meet the first-level (A) standard without additional carbon source. Further analysis indicates that controlling appropriate DO mass concentration in the SBBR reactor is the key factor for stable operation of the whole system, which can stabilize the shortcut nitrification-Anammox and persistently inhibit the growth of nitrite-oxidizing bacteria.关键词
废水/生物反应器/生物膜/脱氮除磷/厌氧氨氧化/SBBR/低ρ(C)/ρ(N)Key words
wastewater/bioreactors/biofilm/nitrogen and phosphorus removal/Anammox/SBBR/lowρ(C)/ρ(N)分类
资源环境引用本文复制引用
邵和东,王淑莹,张亮,张树军,甘一萍,杨延栋,彭永臻..常温下厌氧氨氧化组合工艺处理低C与N质量浓度比的城市污水的脱氮除磷性能[J].中南大学学报（自然科学版）,2016,(1):344-349,6.基金项目
国家高技术研究发展计划(863计划)项目(2012AA063406)(Project(2012AA063406) supported by the National High Research Development Program (863 Program) of China) （863计划）
