Patent ID: 9213341
Filing Date: 2015-12-15
Classification: A61L,B01D,G05D

Abstract:
1. A method for decontaminating a biological safety cabinet with a falling film evaporator, the method comprising the steps of: providing the falling-film evaporator within a cavity of the biological safety cabinet, said evaporator having a housing defining a cavity, an evaporation element disposed in said cavity of said housing and a sump, said evaporation element having an upper end and a lower end and said sump disposed below said lower end of said evaporation element; conveying a liquid decontaminant from a source of liquid decontaminant to said upper end of said evaporation element such that said liquid decontaminant flows along a surface of said evaporation element from said upper end of said evaporation element to said lower end of said evaporation element; conveying a carrier gas through said cavity of said housing wherein said carrier gas is conveyed along said surface of said evaporation element to evaporate at least a portion of said liquid decontaminant, thereby forming a mixture of said carrier gas and said vaporized decontaminant; collecting a remaining portion of said liquid decontaminant in said sump and conveying said remaining portion of said liquid decontaminant to said upper end of said evaporation element; and exhausting said mixture into said cavity of said biological safety cabinet to decontaminate articles and surfaces in said cavity of said biological safety cabinet.