Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-07-27
2009-06-23
Prince, Fred (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S615000, C210S623000, C210S631000, C210S903000
Reexamination Certificate
active
07550086
ABSTRACT:
Advanced treatment method and system of ethanolamine-containing wastewater are disclosed, which perform physicochemical and biological treatment processes. The method regenerates cation exchange resin that captures ethanolamine discharged from a nuclear power plant or a thermal power station, concentrates the ethanolamine-containing wastewater to reduce the volume of the wastewater, and then treats the highly concentrated ethanolamine-containing wastewater through biological decomposition and denitrification processes. The system for treating ethanolamine-containing wastewater performs the physicochemical process (ion-exchange and resin regenerations) where the waster is concentrated, and then applies the biological process to the small amount of wastewater highly concentrated. The physicochemical process is composed of exchanging ions and eluting/concentrating ethanolamine using sodium hydroxide. The wastewater of a few to tens of thousands ppm is transferred and undergoes a biological process where the ethanolamine is decomposed, converted into CO2and N2through the anoxic tank and two aerobic tanks, and then discharged in gas. Therefore, the wastewater is discharged, satisfying the biochemical oxygen demand value and the nitrogen content required by the environmental discharge standard.
REFERENCES:
patent: 2007/0138091 (2007-06-01), Yamasaki et al.
patent: 1999033586 (1997-07-01), None
patent: 10-62597 (1998-03-01), None
patent: 1999000693 (1999-01-01), None
patent: 11-156392 (1999-06-01), None
patent: 2005066544 (2003-08-01), None
patent: 2006142192 (2004-11-01), None
patent: 2004-351419 (2004-12-01), None
Ahn Hyun kyoung
Cho Dae chul
Han Hyun kak
Huh Nam Soo
Hyun Jun taek
Hughes Michael F.
Hughes Law Firm PLLC
Prince Fred
LandOfFree
Advanced treatment method of ethanolamine-wastewater based... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Advanced treatment method of ethanolamine-wastewater based..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advanced treatment method of ethanolamine-wastewater based... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4147307