Class level distribution of sequences affiliated to the phylum Bacteroidetes based on the 16S rRNA gene clone libraries from anaerobic- aerobic reactors and three constructed wetland sites.

<p>Class level distribution of sequences affiliated to the phylum Bacteroidetes based on the 16S rRNA gene clone libraries from anaerobic- aerobic reactors and three constructed wetland sites.</p

Genus- level distribution of the different families of the dominant class Clostridia in the different components of the integrated reactor.

<p>Genus- level distribution of the different families of the dominant class Clostridia in the different components of the integrated reactor.</p

Estimated sample coverage, community richness and diversity estimators of the 16S rRNA gene clone libraries of Modjo Tannery effluent treatment plant samples.

<p>Abbreviations: N, Number of clones in each library; NS, Number of unique sequences for each library; S, richness expressed by number of observed OTUs; ESC, estimated sample coverage.</p><p>* Values in Parenthesis are 95% confidence intervals.</p><p>Estimated sample coverage, community richness and diversity estimators of the 16S rRNA gene clone libraries of Modjo Tannery effluent treatment plant samples.</p

Class- level distributions of sequences affiliated to the dominant phylum Firmicutes based on the 16S rRNA gene clone libraries from anaerobic- aerobic reactors and three constructed wetland sites.

<p>Class- level distributions of sequences affiliated to the dominant phylum Firmicutes based on the 16S rRNA gene clone libraries from anaerobic- aerobic reactors and three constructed wetland sites.</p

Schematic presentation of the pilot tannery effluent treatment site consisting of anaerobic-aerobic reactors integrated with constructed wetland system.

<p>Black arrows show sampling sites.</p

Rarefaction curves of observed bacterial phylotypes for the 16S rRNA clone libraries from anaerobic and aerobic reactors and the three constructed wetland sites.

<p>Rarefaction curves of observed bacterial phylotypes for the 16S rRNA clone libraries from anaerobic and aerobic reactors and the three constructed wetland sites.</p

Average characteristics of the influent and effluent wastewaters for the feeds at the time of sludge sampling (concentrations are in mg/l, except for pH).

<p>TN, total Nitrogen; TP, total Phosphorous; TSS, total suspended solids; VSS, volatile suspended solids; Total Cr, Total chromium.</p><p>Average characteristics of the influent and effluent wastewaters for the feeds at the time of sludge sampling (concentrations are in mg/l, except for pH).</p

Composition and abundance of observed bacterial phyla based on the 16S rRNA clone libraries constructed from anaerobic, aerobic reactors and three constructed wetland sites arranged in a series.

<p>Composition and abundance of observed bacterial phyla based on the 16S rRNA clone libraries constructed from anaerobic, aerobic reactors and three constructed wetland sites arranged in a series.</p

OTUs shared between the aerobic, anaerobic, CW1 and normalized CW2 + CW3 sample sites of the treatment facility as determined by sequence diversity analysis.

<p>OTUs shared between the aerobic, anaerobic, CW1 and normalized CW2 + CW3 sample sites of the treatment facility as determined by sequence diversity analysis.</p

Unifrac analysis showing statistical significance (P- values) of differences among the bacterial communities of sites of the biological treatment calculated based on partial sequences of 16S rRNA gene.

<p>P-values of Weighted UniFrac test are calculated based on 1000 permutations (pairwise differences).</p><p>Bold values indicate populations not significantly different from each other (P>0.01).</p><p>Unifrac analysis showing statistical significance (P- values) of differences among the bacterial communities of sites of the biological treatment calculated based on partial sequences of 16S rRNA gene.</p