Cleaning equipment e.g. membrane filter for processing liquids containing organic matter involves contacting equipment with solution of periodate compound having defined pH value

摘要

Cleaning equipment for processing liquids containing organic matter involves contacting the equipment with a solution of a periodate compound, where one of the following steps is performed, (A) where the solution has a pH value of = 6, the method further involves contacting the equipment with a solution having a pH value of >= 6; and (B) where a solution of a periodate is used at a pH value of >= 6, the method involves an additional oxidizing agent such as peroxydisulphate, hydrogen peroxide or a peracid.