摘要
实验采用海藻酸钠和PVA添加膨润土包埋固定经富集驯化的以反硝化聚磷菌(DNPAOs)为主的活性污泥,利用体视显微镜和扫描电子显微镜考察了固定化小球的形态和表面结构,并对厌氧/好氧条件下,包埋小球除磷脱氮性能进行探讨,结果表明:固定化小球具有良好的强化生物除磷和较好的反硝化脱氮性能,体系的COD去除率平均达74.9%,平均除磷效率为95.3%,氨氮平均去除率达到95.2%左右。小球若长时间缺氧,在其内部会出现厌氧区,并产生厌氧放磷现象。
Enriched denitlifying polyphosphate accumulating organisms （DNPAOs） was immobilized with sodium alginate and activated carbon to form composite beads. The physical properties of beads were investigated and abilities of simultaneous denitrification and dephosphate with immobilized organisms were determined under anaerobic/aerobic conditions. Results showed that average removal of COD was 74.9%, phosphate 95.3% and NF4^＋-N 95.2% respectively.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第12期56-58,149,共4页
Environmental Science & Technology
基金
广西自然科学基金(桂科基0448085)
广西大学科研基金资助项目(X051008)
关键词
固定化
海藻酸钠
反硝化聚磷菌
同步除磷脱氮
immobilization
sodium alginate
denitrifying polyphosphate accumulating organisms（DNPAOs）
denitrification and phosphate removal
