中南大学学报（自然科学版）2016，Vol.47Issue(11)：3965-3969,5.DOI:10.11817/j.issn.1672-7207.2016.11.046
基于生物强化技术实现城市污水处理系统稳定短程硝化
Achieving stable nitritation in domestic wastewater treatment system based on bioaugmentation technology
摘要
Abstract
The nitritation in side-line treatment system was proposed considering the ammonium oxidizing bacteria (AOB) content was high, and nitrite oxidizing bacteria (NOB) content was low. The excess sludge discharged from above system was introduced to the domestic wastewater treatment system so as to achieve stable nitritation via this bioaugmentation. The results show that stable nitritation is achieved in side-line treatment system by using the inhibition of free ammonia (FA) and free nitrous acid (FNA) on the anabolism of NOB, and the nitrite accumulation rate (RNA) is 97%in average. Nitritation can be quickly start-up in mainstream treatment system by adding nitritation sludge and controlling dissolved oxygen (DO). It could be reconstructed with a nitrite accumulation rate (RNA) from 1%to 89%within 15 d when the mass concentration of DO is 0.96 mg/L and nitritation adding rate is 5.6%. Achieving stable nitritation in domestic wastewater treatment based on bioaugmentation gives a possible solution to achieve nitrogen removal from domestic wastewater via anammox.关键词
城市污水/短程硝化/生物强化/厌氧氨氧化/节能降耗Key words
domestic wastewater/nitritation/bioaugmentation/anammox/energy saving and consumption reducing分类
资源环境引用本文复制引用
彭轶,马斌,委燕,王俊敏,李冬,张杰..基于生物强化技术实现城市污水处理系统稳定短程硝化[J].中南大学学报（自然科学版）,2016,47(11):3965-3969,5.基金项目
国家自然科学基金资助项目(51508008)；北京市自然科学基金资助项目(8154041)；北京市优秀人才培养资助项目(2014000020124G043)(Project(51508008) supported by the National Natural Science Foundation of China （51508008）
Project(8154041) supported by the Natural Science Foundation of Beijing City, China （8154041）
Project(2014000020124G043) supported by Training Programme Foundation for the Talents in Beijing City, China) （2014000020124G043）
