Process Stream Decontamination Systems and Methods with Recirculation of Decontaminant

A system for decontaminating a process stream containing at least one contaminant, the system comprising:

• a supply of decontaminant;
• a controller associated with the supply of decontaminant and operable to introduce a controlled amount of decontaminant to the process stream;
• and
• a recirculation mechanism to collect an amount of used decontaminant, determine its reuseability as decontaminant, and reintroduce said amount of used decontaminant into the process stream if said amount is determined to be reusable.

A method of decontaminating at least one contaminant in a process stream comprising the steps of:

• Injecting decontaminant into the process stream, the decontaminant being used for decontamination of the process stream;
• collecting an amount of used decontaminant;
• determining whether the amount of used decontaminant may be reused as decontaminant for the process stream;
• and
• recirculating the amount of used decontaminant to the process stream if said amount is determined to be reuseable.