Browse Prior Art Database

Solvent Monitor/Detector

IP.com Disclosure Number: IPCOM000110875D
Original Publication Date: 1994-Jan-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Carmichael, D: AUTHOR [+3]

Abstract

Compliance with Federal and State laws regarding discharges of industrial chemicals has produced a need to effectively detect solvent spills in aqueous waste streams. Concern centered on halogenated hydrocarbons which are prevalent in the electronics industry. Continuous monitoring of halogenated hydrocarbons in industrial aqueous waste streams is achieved using the packed column and solvent analyzing system shown in the diagram. The packed column is uniquely designed for this operation. Physically, the column has an overall height of 4 feet with an overall packing (Pall Ring) height of 32 inches. The liquid flow rate into the column is 3 gallons per minute with a gas flow rate (for solvent stripping) of 37 liters per minute. The packed column utilizes a counter-current air stream to strip solvents into the vapor phase.

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Solvent Monitor/Detector

      Compliance with Federal and State laws regarding discharges of
industrial chemicals has produced a need to effectively detect
solvent spills in aqueous waste streams.  Concern centered on
halogenated hydrocarbons which are prevalent in the electronics
industry.  Continuous monitoring of halogenated hydrocarbons in
industrial aqueous waste streams is achieved using the packed column
and solvent analyzing system shown in the diagram.  The packed column
is uniquely designed for this operation.  Physically, the column has
an overall height of 4 feet with an overall packing (Pall Ring)
height of 32 inches.  The liquid flow rate into the column is 3
gallons per minute with a gas flow rate (for solvent stripping) of 37
liters per minute.  The packed column utilizes a counter-current air
stream to strip solvents into the vapor phase.  The resultant solvent
laden air column is carried through the distributor where it is
aspirated, continuously, by the Perkin Elmer Industrial Chemicals
Atmospheric Monitoring System (ICAMS) every 15 minutes.  ICAMS
analyzes the vapor by mass spectroscopy for the priority organic
halogens in the waste stream.  This allows continuous monitoring of
the plant influent.