Table 2.

Monthly distribution of the Rotaviruses A viral loads at the arrival and exit of the line of the activated sludge procedure and at the exit of the UV-C₂₅₄ disinfection procedure

	Exit (RW-OST) of secondary treatment by activated sludge				Disinfection treatment by UV-C254
Months/treatment	Raw wastewater (RW)	Exit of primary treatment (OPT)	Exit of activated sludge (OAS)	Sludge seedling (SS)	Exit of secondary treatment (OST)	Exit of UV passage 1 (UVP1)	Exit of UV passage 2 (UVP2)	Total
June	2.6 107 ± 3 106 a (*); α (**)	1.5 108 ± 2.7 107 b; α	1.8 107 ± 3 106 a; α	2 107 ± 107 a; α	3.4 107 ± 5 106 a; α	106 ± 0 a; α	106 ± 0 a; α	3.5 107 ± 1.1 107
July	1.9 108 ± 108 a; α	2.4 109 ± 2.2 109 a, α; β	3.8 108 ± 3.4 108 a; α	2.8 107 ± 3 106 a; α	2.2 107 ± 7 106 a; α	1.7 107 ± 107 a; α	4 106 ± 106 a; α	4.4 108 ± 3.2 108
September	2.9 108 ± 5.8 107 b; α	1.9 107 ± 106 a; α	1.8 107 ± 6 106 a; α	2.6 107 ± 3 106 a; α	4.5 107 ± 3 106 a; α	2.8 107 ± 106 a; α	1.1 107 ± 2 106 a; α	6.3 107 ± 2.2 107
October	3.3 108 ± 2.3 108 a; α	1.9 108 ± 4 107 a; α	3.5 107 ± 1.6 107 a; α	6.5 107 ± 5.6 107 a; α	1.3 107 ± 1.8 108 a; α	4 106 ± 2 106 a; α	1.2 107 ± 106 a; α	1.1 108 ± 4.1 107
November	4.5 109 ± 2.3 109 b; α	3.5 108 ± 1.3 108 a; α	5 107 ± 3.3 107 a; α	2.7 108 ± 1.8 108 a; α	2.4 108 ± 3.5 107 a; α	1.2 108 ± 2.9 107 a; α	1.7 108 ± 6.6 107 a; α	8.1 108 ± 4.4 108
December	6.2 109 ± 4.1 109 a; α	1.3 1010 ± 3.4 109 b; ɣ	5.108 ± 2.4 108 a; α	5.5 108 ± 4.3 108 a; α	2.5 108 ± 1.9 107 a; α	2.3 108 ± 4.8 107 a; α	1.8 108 ± 1.5 107 a; α	2.9 109 ± 1.12 109
January	4.6 109 ± 6, 107 c; α	3.5 109 ± 5.5 108 b, α; β	9.6 108 ± 5.1 108 a; α	8.4 108 ± 3 108 a; α	1.3 109 ± 5.2 107 a, α; β	5.7 108 ± 2.2 108 a; α	5.5 108 ± 1.5 108 a; β	1.7 109 ± 3.5 108
February	3.4 1010 ± 4.7 109 b; β	8.9109 ± 3.3 109 a; β, ɣ	1.8 109 ± 1.5 109 a; α	8.2 108 ± 9.2 107 a; α	2.8 109 ± 1.7 109 a; β	1.7 109 ± 1.6 109 a; α	2.2 108 ± 5.1 107 a; α	7.1 109 ± 2.6 109
March	6.4 109 ± 4.3 108 b; α	10.6 109 ± 1.7 109 c; ɣ	1.3 108 ± 3.5 107 a; α	3.3 108 ± 4.4 107 a; α	2.1 108 ± 1.8 107 a; α	2.4 107 ± 4 106 a; α	4.1 107 ± 9 106 a; α	2.5 109 ± 9 108
April	2.3 109 ± 2.5 108 b; α	3.3 108 ± 7.7 107 a; α	1.8 109 ± 3 108a; α	5.4 107 ± 8 106 a; α	9 107 ± 5 106 a; α	1.4 108 ± 4 107 a; α	1.6 108 ± 3.7 107 a; α	7 108 ± 3.3 108
Total	5.8 109 ± 2,109	3.9 109 ± 109	5.8 108 ± 1.9 108	3 108 ± 8 107	5.1 108 ± 2.3 108	2.8 108 ± 1.8 108	1.4 108 ± 3.7 107

gc/L genomes copies/L; ± standard deviation

The RVA mean viral load values within a column followed by the same letter (a, b, c, d …) are not significantly different according to Student-Newman-Keuls test at P < 0:05

The RVA mean viral load values within a line followed by the same letter (α, β …) are not significantly different according to Student-Newman-Keuls test at P < 0:05