Paper Title:
Effect of Acclimation Strategy on the Biological Nitrification in the Saline Wastewater
  Abstract

During the process of cultivation of salt-tolerant nitrifying bacteria, the increase in NaCl concentrations was carried out in two different manners. The NaCl concentration in reactor A was increased by increment of 5 g/L, while the NaCl concentration in reactor B was increased by increment of 2.5 g/L. The impacts of NaCl content on the fresh culture and two acclimated cultures were investigated, which focused upon the changes of the specific ammonium oxidation rate (SAOR) and specific nitrite oxidation rate (SNOR). The results indicated that fresh nitrifiers were severely inhibited by high salinity. At NaCl concentration of 25 g/L, ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) completely lost the nitrification capability. After 46 days of acclimation, the nitrifying bacteria could be adapted to the saline wastewater. The average SAOR and SNOR in reactor B were slightly higher than those in reactor A, which meant that low increment in salt concentration may be in favor of the development of salt-tolerant nitrifiers. But the two NaCl increasing approaches did not affect the SAOR and SNOR too much. Salt-tolerant nitrifiers could be well developed with the two acclimation manners.

  Info
Periodical
Advanced Materials Research (Volumes 183-185)
Chapter
Environmental Biotechnology
Edited by
Yanguo Shi and Jinlong Zuo
Pages
522-526
DOI
10.4028/www.scientific.net/AMR.183-185.522
Citation
L. L. Li, B. Yang, P. Zhou, "Effect of Acclimation Strategy on the Biological Nitrification in the Saline Wastewater", Advanced Materials Research, Vols. 183-185, pp. 522-526, 2011
Online since
January 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Su Chen, Lei Chao, Ning Chen, Lin Shan Wang, Xue Shao, Li Na Sun
Chapter 9: Environmental Restoration Project
Abstract:The inoculated sludge in this experimental system is from the end of aeration tank of the wastewater treatment plant. Under stable...
1895
Authors: Shan Hong Lan, Chuan Lu Wang, Hui Jie Li, Heng Zhang, Hui Xia Lan
Chapter 10: Pollution Control and Prevention, Disposal and Recycling of Waste
Abstract:The double membrane bio-reactor was used to treat the simulated wastewater under aerobic conditions, and the aerobic activated sludge system...
923