Elimination of Wastewater Treatment System
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United States of America Patent
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N/A
Issued Date -
Jul 31, 2008
app pub date -
Nov 2, 2007
filing date -
Jan 30, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method reducing wastewater in a polyester-manufacturing plant includes a step in which ethylene glycol-containing composition from at least one of the chemical reactors is provided to a water separation column. The water separation column is kept within a predetermined temperature range such that any acetaldehyde present in the water separation column is substantially maintained in a vapor state. A waste-vapor mixture comprising one or more organic compounds is subsequently removed from the water separation column and combusted. The polyester-manufacturing plant optionally includes a spray condenser system having a heat exchanger such that the heat exchanger is contacted with a hot ethylene glycol composition derived from the water separation column when the heat exchanger needs cleaning. The polyester-manufacturing plant may be enclosed with a roof and walls such that rainwater is prevented from being contaminated with any organic chemicals present in the polyester-manufacturing plant.
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