Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-12-22
2009-08-18
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S902000
Reexamination Certificate
active
07575686
ABSTRACT:
The invention relates to a system and method to reduce perchlorate in wastewater utilizing perchlorate-reducing bacteria, sulfur as an electron donor and mollusk shells as alkalinity agent. Embodiments of the invention include a perchlorate-reduction system comprising a bioreactor unit having perchlorate-reducing media comprising elemental sulfur, oyster shells and a microbial community, and can further include an optional pretreatment unit, wastewater-catchment and/or post-treatment components. Embodiments of the method include multiple steps utilizing the system and additional process steps that achieve enhanced perchlorate reduction.
REFERENCES:
patent: 4933076 (1990-06-01), Oshima et al.
patent: 5160622 (1992-11-01), Gunderson et al.
patent: 5578214 (1996-11-01), Yamasaki et al.
patent: 5702604 (1997-12-01), Yamasaki et al.
patent: 5961831 (1999-10-01), Lee et al.
patent: 6171480 (2001-01-01), Lee et al.
patent: 6291233 (2001-09-01), Saha et al.
patent: 6391201 (2002-05-01), Pelz
patent: 6808622 (2004-10-01), Okamoto et al.
patent: 7109022 (2006-09-01), Yatagai et al.
patent: 2006/0070948 (2006-04-01), Wickham
patent: 2006/0292684 (2006-12-01), Bentley et al.
patent: 0 695 722 (2000-01-01), None
patent: 10323694 (1998-12-01), None
patent: 11285695 (1999-10-01), None
patent: WO 99/25655 (1999-05-01), None
Sengupta et al., “Autotrophic biological denitrification for complete removal of nitrogen from septic system wastewater,” Water, Air, and Soil Pollution: Focus (2006) 6: 111-126.
Dauphin et al., “Microstructure, nanostructure and composition of the shell of concholepas concholepas (gastropoda, Muricidae),” Aquatic Living Resources, 16 (2003) 95-103.
Ergas Sarina
Nüsslein Klaus
Sahu Ashish
Sengupta Sukalyan
Barry Chester T
University of Massachusetts
Weingarten Schurgin, Gagnebin & Lebovici LLP
LandOfFree
Process for autotrophic perchlorate reduction using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for autotrophic perchlorate reduction using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for autotrophic perchlorate reduction using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4132075