Biofouling Control in Cooling Water

Table 2

Mean biofilm thickness over a period of 28 days with different treatments.

Week	Biofilm thickness for different tubes 𝜇m
	Ozone only	Ozone + ultrasound
2	26, 18, 17, 18	9, 8
3	43, 15, 24, 20	11, 12
4	111, 49, 60, 51	7, 5