固定特殊氮細菌進行單槽碳氮去除之研究
Date Issued
2004
Date
2004
Author(s)
莊隆光
DOI
zh-TW
Abstract
The objectives of this study were intended to investigate the effects of Achromobacter xylosoxidans on the COD and ammonia removals, and to verify the simultaneous nitrification and denitrification (SND). The SND reactions of suspended cells, immobilized cells, mixed-immobilized cells and individual-immobilized cells in batch reactors were studied. Furthermore, the availability of removing ammonia from the synthetic wastewater in continuous-flow system was evaluated to find the optimum operation of SND reactions, and to provide a guideline for the treating wastewater.
Continuously monitoring batch reactor with silicone tubing was used to verify the SND ability of Achromobacter xylosoxidans. It was suggested that the lag phase of immobilized cells was shortened and the COD and ammonia removal efficiencies and nitrification were improved. Achromobacter xylosoxidans and autotrophic nitrifying sludge were immobilized individually and collectively to enhance nitrification efficiency, and it was observed that the mixed-immobilized cells demonstrated better nitrification efficiency and COD and ammonia removal efficiencies.
The results of this investigation revealed that the mixed-immobilized cells, large aerating rate (2.6 L/min), long-term HRT (10 hr), C/N=12.7, and sodium bicarbonate added 1g/L were effective in removing ammonia and improving nitrification efficiency.
Subjects
同時硝化脫硝反應
固定化菌株
simultaneous nitrification and denitrification
immobilized cells
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-93-R91541119-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):58e24f6882418550ad364a5d83f7a4dd