Fig. 2.

TSS and COD profiles over the three testing stages. Plots A, and C show influent, effluent, and removal percentage of each parameter. The first grey bar shows the timeframe of first shutdown period. Second grey bar shows the timeframe of regeneration of the NCS. The third grey bar shows the timeframe of second shutdown and the second regeneration of NCS. Plots B, and D show the boxplot of each parameter in different steps of the treatment processes. The lines in the box indicate medians, the red dots and the number shown in the box is the average for each parameter, boxes 25th and 75th percentiles. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)