Chinese Journal of Applied Ecology ›› 2012, Vol. 23 ›› Issue (06): 1635-1640.
• Articles • Previous Articles Next Articles
XIAO Ji-bo, JIANG Hui-xia, CHU Shu-yi
Online:
Published:
Abstract: A heterotrophic nitrobacterium strain JZ1-1 with higher nitrifying capability was isolated and mutagenized from an acclimated activated sludge. The JZ1-1 was identified as Colloidessp., according to its morphological and physiological features. The factors affecting the nitrifying capability of JZ1-1 were investigated, including medium carbon source, C/N ratio, pH value, dissolved oxygen, temperature, and ammonium nitrogen concentration. The optimal carbon source was sodium citrate, and the nitrification was favored when the C/N ratio was from 10 to 14, temperature was 30 ℃, and pH value was 6-9 when cultured at a rotating speed of more than 150 r·min-1. JZ1-1 could degrade ammonium nitrogen effectively when the initial concentration of ammonium nitrogen was from 100 mg·L-1 to 500 mg·L-1. JZ1-1 was stable after 5 generations of subculture.
XIAO Ji-bo, JIANG Hui-xia, CHU Shu-yi. Identification of a new heterotrophic nitrobacterium strain Colloidessp. JZ1-1 and its nitrifying capability.[J]. Chinese Journal of Applied Ecology, 2012, 23(06): 1635-1640.
/ Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: https://www.cjae.net/EN/abstract/abstract10074.shtml
https://www.cjae.net/EN/Y2012/V23/I06/1635