Process and article for disinfecting water

摘要

Disclosed is a process for disinfecting water which provides a visual indication after the disinfection is complete. This process includes the steps of providing water and passing the water through a fabric into a container, wherein the fabric comprises entrapped a disinfectant and a colorant, wherein the container has a removing material attached to its inside in an immobilized fashion, wherein the water is intermixed with the disinfectant and the colorant when it is passed through the fabric, whereby the disinfectant will render harmless substantially all pathogens present in the water over a time period Tk; and wherein the removing material will remove substantially all of the disinfectant and colorant from the water, wherein the amount of colorant present will be selected so that the removing material will not remove substantially all of the colorant until time period Tr which is longer than Tk.