Patent ID: 7323042

Claim:
A point-of-use, scrubber for treating an effluent waste stream comprising a toxic and/or hazardous component, said waste stream deriving from a by-pass line of a semiconductor process, said scrubber comprising: an up-flow canister comprising: a lower section plenum space; an upper section plenum space; at least one dry resin sorbent bed layer therebetween; an inlet in gas flow communication with the by-pass process line; an outlet, arranged such that the process effluent waste stream flows in an upward direction to effectively reduce the concentration of the toxic and/or hazardous component from the effluent waste stream, wherein said semiconductor process is in gas flow communication with an abatement system distinct from said point-of-use scrubber, for treatment of semiconductor process effluent produced by said semiconductor process; and, an end point monitor adapted to output an indication of breakthrough of the toxic and/or hazardous component from the effluent waste stream when a capacity of the at least one dry resin sorbent bed layer for active processing of the effluent gas stream reaches a predetermined point.