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.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Shen J,He R,Yu H,Wang L,Zhang J,Sun X,Li J,Han W,Xu Ldoi
10.1016/j.biortech.2008.10.018subject
Has Abstractpub_date
2009-03-01 00:00:00pages
1922-30issue
6eissn
0960-8524issn
1873-2976pii
S0960-8524(08)00875-4journal_volume
100pub_type
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