Water and Wastewater Disinfection with Peracetic Acid and UV Radiation and Using Advanced Oxidative Process PAA/UV

Table 4

E. coli and coliphages inactivation employing PAA and UV radiation individually in tests with water.

			Peracetic acid			UV radiation
			Concentration (mg/L)			Exposure (s)
			2	3	4	60	90
Test 1	E. coli	5 × 10^2	10	<1	<1	3,7 × 10^2	<1
	Coliphages	—	—	—	—	—	—
Test 2	E. coli	9 × 10^3	60	40	10	100	<1
	Coliphages	2 × 10^3	235	70	<1	5	<1

: microorganisms initial number in gross water; —: test not carried out.