## 3 Results
### Removal of TBC from Drinking Water by Filtration
#### 3.1.3 Results of First Regeneration  
The micelle-clay granules from each column filter were subjected to MW radiation as in [22]. The sample mass was measured after each heating-drying period. The used granules from each column were first exposed to 30 s of heating, and when their weight exceeded by 5% the original weight of fresh granules, the samples were heated in repetitions of 20 s. Table 4 indicates the results of filtration by the column filters after the first regeneration. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Source of Sample**} & \multicolumn{4}{c}{**Volumes Filtered (L)**} \\ \cline{2-5}  & 43.2 & 77.8 & 112.3 & 138.2 \\ \hline Tap & 131 & 1 & 1 & \textless{}1 \\ Container & 475 & 2 & 8 & \textless{}1 \\ R1 & 1600 b  & 2300 b  & 1000 b  & 2500 b  & 3500 b  & 40 c  & 11,000 a  & 58 c  & 3200 b  & 40 c  & 11,000 a  & 58 c  & 3200 b  & 2300 b  & 1000 a  & 3500 b  & 40 c  & 58 c [FOOTNOTE:b]Footnote b: footnotemark: The experiment started on 17 January 2020 and was completed by 2 February 2020. Tap and container refer to continuous tap and container water inlets, respectively. R1–3 refer to columns containing an ordinary complex. E1–3 refer to columns containing an Retention time and flow rate were as in Table 3.  
Within statistical uncertainty, the results in Table 4 do not show an advantage of any of the reused complexes in removal of bacteria from drinking water. The results in the last column in Table 3 were retained for completeness and for demonstrating that the regeneration reduced on average the number of emerging bacteria 800-fold. The capacity in this experiment was calculated as in the case of Table 3 by (25.9 + 25.9 - 2/3 + 25.9 /3) L/32 g = 1.7 L/g, which is 85% of the capacity of the enriched complex, similarly to previous outcomes by [PERSON] et al. [24] and [PERSON] et al. [13]. Tests of the Efficiency of the Ordinary vs. Neutral Complex in Removal from Water of the Non-Ionic Herbicide Metabolchlor  
Metolachlor concentrations in drinking water are not allowed above 0.1 ug/L in Europe. A metabolchlor solution was filtered by two types of complexes: ordinary (loading of ODTMA is 50% above the CEC of the clay), and neutral. Two solutions of metabolchlor were filtered, 50 mg/L (Figure 1) and 10 mg/L (Figure 2), and the results were modeled as in [3]. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Source of Sample**} & \multicolumn{3}{c}{**Volumes Filtered (L)**} \\ \cline{2-4}  & **25.9** & **51.8** & **86.4** \\ \hline Tap & 89 & 11 & 1 \\ Container & 82 & 5 & 1 \\ R1 & 1 & 4600 [FOOTNOTE:]Footnote : The experiment started on 10 February 2020 and was completed by 20 February 2020. Tap and container refer to continuous tap and container water inlets, respectively. Samples R1–3 and E1–3 denote columns, which contained ordinary and enriched complexes, respectively. The fractions of metolachloror sorbed by passing a solution of 50 mg/L were 71% and 74% in the cases of the ordinary and neutral complexes, respectively. The passage of a five-fold or less concentrated solution yielded somewhat larger percentages of metolachlor sorption (76% and 80%), whereas the adsorbed amounts were about 24% less in the case of the more dilute solution during 48 h, in comparison with 17 h in the case of the more concentrated solution. The results of metolachlor filtration (50 mg/L; Figure 1) by the neutral complex were fitted to the experimental values by using the values of 3 parameters: R\({}_{0}\) = 0.042 M, the molar concentration of adsorbing sites in the filter; C\({}_{1}\) = 30 M\({}^{-1}\) min\({}^{-1}\), the forward rate constant of sorption; D\({}_{1}\) = 0.0004 min\({}^{-1}\), the rate constant of desorption. The same values of the parameters yielded reasonably well predictions of the experimental results of percent adsorbed in Figure 2.  
The values obtained for the statistical criteria of the fits were R\({}^{2}\) = 0.97 and 0.944 and RMSE of 1.8 and 2.1 for the filtration of the 50 mg/L and 10 mg/L solutions, respectively.