31. Many bottlers of spring water use UV disinfection equipment to sterilize their water. 32. UV is also used for disinfection at aquatic facilities. 33. Reservoir water is treated through chemical coagulation, rapid gravity filtration and disinfection . 34. Some subset of DOC constitutes the precursors of disinfection byproducts for drinking water. 35. It is also used for disinfection of seed boxes. 36. Ultraviolet disinfection of water is a purely physical, chemical-free process. 37. In 2000, 80 % of urban water supply systems used disinfection measures. 38. This count is used to calculate the log reduction to determine disinfection efficiency. 39. Full mouth disinfection protocols are favoured by some clinicians. 40. Hand and surface disinfection practices are the first line of defense against infection.
