摘要
采用辐射技术,以共聚物Poly(HEA)-Poly(HEMA)为载体将纯种AOB-Comamonas aquaticLNL3固定化,研究了固定化纯种AOB在不同温度、pH、DO、FA条件下的短程硝化性能.结果表明,纯种AOB-Comamonas aquaticLNL3具有短程硝化性能,固定化纯种AOB-Comamonas aquaticLNL3的短程硝化反应的最佳温度、pH、DO、FA分别为30℃、8.5、4.03 mg/L和9 mg/L,相应的氨氮去除率和亚硝化率分别为93.52%、94.73%;79.74%、94.67%;91.17%、94.66%和90%、94.4%,FA对短程硝化亚硝化率影响不大.
A new kind of ammonia-oxidizing bacteria（AOB）-Comamonas aquatic LNL3was screened out and immobilized by Poly（HEA）-Poly（HEMA） copolymer carrier using irradiation techniques.Four kinds of impact factors on short-cut nitrification,including temperature,pH,DO and free ammonia（FA） concentration had been investigated.The result showed that AOBComamonas aquatic LNL3had short-cut nitrification capability and the optimal temperature,pH,DO and FA concentration were 30℃,8.5,4.03 mg/L and 9mg/L respectively.Corresponding to above results,ammonia nitrogen removal rate and short-cut nitrification efficiency were 93.52%,94.73%;79.74%,94.67%;91.17%,94.66% and 90%,94.4% respectively.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2009年第10期2952-2957,共6页
Environmental Science
基金
国家重点基础研究发展规划(973)项目(2008CB418003)
国家高技术研究发展计划(863)项目(2008ZX07101-012-04-03,2008ZX07101-004)
国家科技支撑计划项目(2006BAJ08B01-02)
关键词
水生丛毛单胞菌LNL3
短程硝化
共聚物载体
氨氮去除率
亚硝化率
Comamonas aquatic LNIe
short-cut nitrification
copolymer carrier
ammonia nitrogen removal rate
short-cut nitrification efficiency
