Figure 4. Total bacterial biomass stained by SYTO9 (○) and number of group I (•) and group II (■) AOB cells determined with probes Nsol9O and Cluster 6a192 respectively using FISH analysis. Krror bars indicate the standard deviation. Process with (a) long and (b) short solids retention time

From

Optimization of Retention Time of Microbial Community Structure of Activated Sludge Process

M P. Shah

American Journal of Water Resources. 2014, 2(6), 149-158 doi:10.12691/ajwr-2-6-3