We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
菌株 Acinetobactersp.Z1 低温脱氮除磷性能及氮磷转化途径.
- Authors
赵 紫 荆; 张 玉; 周 集 体
- Abstract
A strain with nitrogen and phosphorus removal function at low temperature and aerobic conditions is isolated from activated sludge of sewage treatment plant in winter. It is identified as Acinetobacter by 16S rDNA sequence analysis, and named as Acinetobacter sp. Z1. The nitrogen and phosphorus removal performance and transformation pathway of strain Z1 are studied at 10℃. The results show that strain Z1 can use NH4+-N or NO3--N as the sole nitrogen source, and NH4+-N and NO3--N as the mixed nitrogen source for nitrogen and phosphorus removal. Strain Z1 has good nitrogen and phosphorus removal effect under the conditions that the carbon source is sodium acetate, m (COD)/m (N)≥20, m (P)/m (N)=0. 2, neutral and weak alkaline solution, and the shaking speed n≥100 r/min. And the maximum removal rates of NH4+-N and PO43--P can reach 96. 0% and 97. 9%respectively. The nitrogen transformation pathway of strain Z1 is mainly assimilation, and strain Z1can also remove nitrogen through heterotrophic nitrification-aerobic denitrification. Strain Z1 can remove phosphorus under aerobic conditions, but can not release phosphorus under anaerobic conditions. The experimental result shows that strain Z1 has good nitrogen and phosphorus removal ability at low temperature, and has a good application prospect in winter sewage biological treatment.
- Subjects
SLUDGE management; SEWAGE disposal plants; SODIUM acetate; ALKALINE solutions; LOW temperatures; NITROGEN removal (Sewage purification); SEWAGE purification
- Publication
Journal of Dalian University of Technology / Dalian Ligong Daxue Xuebao, 2023, Vol 63, Issue 2, p151
- ISSN
1000-8608
- Publication type
Article
- DOI
10.7511/dllgxb202302006