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Influence of phenol on nitrification by microbial granules

Paper ID Volume ID Publish Year Pages File Format Full-Text
36660 45139 2005 5 PDF Available
Title
Influence of phenol on nitrification by microbial granules
Abstract

The effect of phenol on the nitrifying activity of aerobically grown microbial granules, produced in a sequencing batch reactor, was evaluated in batch experiments. Ammonium oxidation rate and nitrate production rate decreased in the presence of phenol. Nitrifying activity was recovered completely after degradation of phenol when initial phenol concentrations were not higher than 10 mg l−1. For initial phenol concentrations of 15 and 20 mg l−1, the recoveries of nitrate productivity were 77% and 67% of the control, respectively. The results showed that nitrifying bacteria embedded in microbial granules were relatively resilient to the inhibitory effects exerted by phenol. These aerobic microbial granules could potentially be applied to simultaneous removal of organics and ammonia from wastewaters containing phenol.

Keywords
Microbial granules; Nitrification; Phenol; Wastewater
First Page Preview
Influence of phenol on nitrification by microbial granules
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 10, October 2005, Pages 3285–3289
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering