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| Number | Title | Issue Date |
| 7572353 | Ethanol distillation process A process arrangement for distilling fuel grade ethanol include a distillation portion which distills beer to produce thin stillage and hot ethanol vapor. In an evaporation portion, a set of first effect evaporators which are heated either by plant steam or hot etha... | 08/11/2009 |
| 7520990 | Anaerobic wastewater treatment system and method An anaerobic wastewater treatment system includes a recycle tank, a bioreactor tank and a bioselector for recapturing anaerobic microbial consortia particles escaping from the bioreactor tank and returning them to the bioreactor tank. The bioreactor tank receives re... | 04/21/2009 |
| 7297236 | Ethanol distillation process A process arrangement for distilling fuel grade ethanol includes a fermentation portion, a distillation portion, a condensation and dehydration portion, a separation and drying portion and an evaporation portion. The fermentation portion produces beer. The distillat... | 11/20/2007 |
| 7097762 | Modular waste water treatment system The modular waste water treatment system receives waste water from a waste water source containing organic waste and produces a treated water effluent. The modular system includes bioreactors and a bioreactor support module. The bioreactors receive a waste water mix... | 08/29/2006 |
