【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.更多还原

【Abstract】 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 9（mg/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.更多还原