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Treatment of high-strength ammonia containing wastewater using partial nitritation system with biological selector

Paper Topic: 
Water and Wastewater Treatment
 
Volume: 
 
Issue: 
 

Pages :
738 - 743

Corresponing Author: 
Wenjie Z.
 
Authors: 
Yue J., Dunqiu W. and Wenjie Z.
Paper ID: 
gnest_01752
Paper Status: 
Published
Date Paper Accepted: 
01/10/2015
Paper online: 
14/10/2015
Abstract: 

In this paper, one partial nitritation system with biological selector (PNBS) was first evaluated in treating high-strength ammonia containing wastewater. Nitrite production rate (NPR) of 8.25 kg N m-3 d-1 was achieved with influent NH4-N concentration 2000 mg l-1 and HRT 3.2 h, which is, to our knowledge, the highest NPR to be treated successfully by an nitritation reactor. A genetic analysis of the organisms in the PNBS revealed an abundance of Nitrosomonas sp. ENI-11, Uncultured bacterium clone: AnDHS-3, Nitrosomonas sp. ENI-11 and Nitrosomonas eutropha enriched in the PNBS reactor.

 

Keywords: 
Nitritation, Biological selector, High-strength, Ammonia containing wastewater, Nitrite oxidizing bacteria