Biodegradation of 2,4,6-trinitrophenol (picric acid) in a biological aerated filter (BAF).

Abstract

This study demonstrated the microbial purification of a model wastewater containing 2,4,6-trinitrophenol (TNP), which was carried out in a continuously working biological aerated filter (BAF). The main emphasis was on the operating performance of the reactor as a function of the pollution load. TNP was degraded at a maximum volumetric removal rate of 2.53gTNP/Ld, with low residual COD and TNP concentration. Overloading of TNP inhibited the nitrite-oxidizing activity, resulting in poor TNP degradation performance in the BAF system. The inhibition depended on some factors, such as influent concentrations and flow rates of the influent. It is assumed that nitrite-oxidizing occurred spontaneously during TNP degradation in the BAF system, could have significant influence on TNP wastewater treatment. One year after the reactor start-up, the dominance of Rhodococcus, which was initially inoculated in the reactor, was confirmed by analysis of 16S rDNA sequence of the PCR products separated by DGGE.

DOI: 10.1016/j.biortech.2008.10.018

Statistics

05010015020102011201220132014201520162017
Citations per Year

82 Citations

Semantic Scholar estimates that this publication has 82 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{Shen2009BiodegradationO2, title={Biodegradation of 2,4,6-trinitrophenol (picric acid) in a biological aerated filter (BAF).}, author={Jinyou Shen and Rui He and Hong-Xia Yu and Lianjun Wang and Jianfa Zhang and Xiuyun Sun and Jian-sheng Li and Weiqing Han and Lu Xu}, journal={Bioresource technology}, year={2009}, volume={100 6}, pages={1922-30} }