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Fig. 2 | BMC Microbiology

Fig. 2

From: Petroleum hydrocarbon rich oil refinery sludge of North-East India harbours anaerobic, fermentative, sulfate-reducing, syntrophic and methanogenic microbial populations

Fig. 2

Community level physiological profiles of GR1, DB2 and GR3 sludge samples. Average well color development (AWCD) was plotted with time for the samples along with a non-polluted soil (Soil) (a). Color development was monitored till 180 h. Error bars represent the standard error of mean (n = 3). Utilization of seven categories of substrates by three sludge samples over time, GR1 (b), GR3 (c) and DB2 (d)

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BMC Microbiology

ISSN: 1471-2180

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