摘要
为了将好氧反硝化应用到实际市政污水处理生物强化中,文章从菌群入手,取市政污水处理系统活性污泥进行8 d好氧反硝化菌富集培养,获得的好氧反硝化污泥的硝酸盐氮和COD去除速率分别为23. 88 mg/L·h和179. 00 mg/L·h。将该好氧反硝化污泥投加至未经驯化的活性污泥以处理模拟生活污水,结果表明:好氧反硝化污泥投加比例每提高10%,培养体系内氨氮和总无机氮去除速率可分别稳定提高3. 52%和48. 87%,硝酸盐氮积累速率稳定下降7. 32%,可使培养体系内实现同步硝化反硝化。
In order to apply aerobic denitrification to the bioaugmentation of municipal wastewater treatment,this study adopted the flora enrichment. Aerobic denitrifiers were obtained by enrichment culture used activated sludge from municipal wastewater treatment in 8 days,which the nitrate and COD removal rate were 23. 88 mg/L·h and 179. 00 mg/L·h,respectively. The results showed that the removal rates of ammonia and total inorganic nitrogen in the activated sludge system increased by 3. 52% and 48. 87%,respectively,and the accumulation rate of nitrate nitrogen decreased by 7. 32% after adding the aerobic denitrifiers into the untrained activated sludge,which could achieve simultaneous nitrification and denitrification in the system.
作者
陈茂霞
张元勤
常佳丽
杨娟
江滔
CHEN Maoxia;ZHANG Yuanqin;CHANG Jiali;YANG Juan;JIANG Tao(School of Chemistry,Leshan Normal University,Leshan Sichuan 614000,China)
出处
《乐山师范学院学报》
2020年第4期22-28,共7页
Journal of Leshan Normal University
基金
乐山师范学院引进人才科研启动项目“畜禽粪污资源化利用过程中抗生素抗性基因的生态风险性研究”(XJR18004)
四川省教育厅自然科学项目“剩余污泥处置过程中抗生素抗性基因的消减研究”(18ZB0271)
四川省教育厅科研创新团队项目“废弃物无害化与资源化利用技术”(18TD0031)。
关键词
好氧反硝化
生物强化
菌群
活性污泥
Aerobic Denitrification
Bioaugmentation
Flora
Activated Sludge
