Bionest reactor for the application of anaerobic wastewater...

Liquid purification or separation – Serially connected distinct treating with or without storage... – Diverse

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C210S603000, C210S615000

Reexamination Certificate

active

10858819

ABSTRACT:
A method of treating wastewater using an anaerobic bioreactor which contains a “bio-nest” structure to retain the microbial content and improve digestion efficiency is disclosed. The bionest system results in a longer SRT, good sludge mixing, and reduced wash-out of sludge. The system is particularly useful for treatment of lipid rich wastewater such as dairy wastewater.

REFERENCES:
patent: 3347381 (1967-10-01), Minch et al.
patent: 4169050 (1979-09-01), Serfling et al.
patent: 4294694 (1981-10-01), Coulthard
patent: 4415453 (1983-11-01), Witt et al.
patent: 4551250 (1985-11-01), Morper et al.
patent: 5500111 (1996-03-01), Fujino
patent: 5637219 (1997-06-01), Robinson et al.
patent: 6019900 (2000-02-01), Brink et al.
patent: 2005/0051482 (2005-03-01), Austin
patent: 62-36190 (1987-02-01), None
patent: 1-249189 (1989-10-01), None
patent: 8-309387 (1996-11-01), None
Alphenaar et al. (2001). Anaerobic digestion of long-chain fatty acids in UASB and expanded granular sludge bed reactors. Abstract.
Batstone et al. (2001). Variation of bulk properties of anaerobic granules with wastewater type.Water Research, 35(7), 1723-1729.
Bellouti et al. (1997). Flocs vs granules: differentiation by fractal dimension.Water Research, 31(5), 1227-1231.
Chemicharo et al. (1999). Development and evaluation of a partitioned upflow anaerobic sludge blanket (UASB) reactor for the treatment of domestic sewage from small villages.Wat. Sci. and Tech., 40(8), 107-113.
Cordoba et al. (1995) . Improved performance of a hybrid design over an anaerobic filter for the treatment of dairy industry wastewater at laboratory scale.Journal of Fermentation and Bioengineering, 79(3), 270-272.
Driessen et al. (1999). Anaerobic treatment of low, medium and high strength effluent in the agro-industry.Wat. Sci. and Tech., 40(8), 221-228.
Fernandez et al. (2001). Anaerobic treatment of fibreboard manufacturing wastewaters in a pilot scale hybrid USBF reactor.Wat. Res., 35(17), 4150-4158.
Frankin (2001). Full-scale experiences with anaerobic treatment of industrial wastewater.Wat. Sci. Tech., 44(8), 1-6.
Gavala et al. (1999). Treatment of dairy wastewater using an upflow anaerobic sludge blanket reactor.Journal of Agricultural Engineering Research, 73(1), 59-63.
Hills et al. (1984). Effect of particle size on anaerobic digestion of tomato solid waste.Agric. Wastes, 10, 285-295.
Lettinga et al. (1980). Use of the upflow sludge blanket (USB) reactor concept for biological wastewater treatment.Biotechnology and Bioengineering, 22, 699-734.
Lettinga et al. (1997). Advanced anaerobic wastewater treatment in the near future.Wat. Sci. and Tech., 35(10), 5-12.
Lettinga et al. (2001). Challenge of psychrophilic anaerobic wastewater treatment.Trends in Biotechnology, 19(9), 363-370.
Lettinga et al. , G., Hulshoff, P. L. W. (1991). UASB-process design for various types of wastewaters.Water Sci. Technol., 24(8), 87-107.
Ligero et al. (2002). Sludge granulation during anaerobic treatment of pre-hydrolysed domestic wastewater,Water SA, 28(3), 307-311.
Malina et al. (1992). Design of anaerobic processes for treatment of industrial and municipal wastes,Water Quality Management Library, 7, 85.
Marin et al. (1999). Design and startup of an anaerobic fluidized bed reactor.Wat. Sci. Tech., 40(8), 63-70.
Miron et al. (2000). The role of sludge retention time in the hydrolysis and acidification of lipids, carbohydrates and proteins during digestion of primary sludge in CSTR systems.Water Res., 34(5), 1705-1713.
Nadais et al. (2001). Effects of organic, hydraulic and fat shocks on the performance of UASB reactors with intermittent operation.Water Sci. Techno., 44(4), 49-56.
Pereboom (1994). Size distribution model for methanogenic granules from full scale UASB and IC reactors.Water Science and Technology, 30(12), 211-221.
Pereboom et al. (1994). Methanogenic granule development in full scale internal circulation reactors.Water Science and Technology, 30(8), 9-21.
Perle et al. (1995). Some biochemical aspects of the anaerobic degradation of dairy wastewater.Water Research, 29(6), 1549-1554.
Petruy et al. (1997). Digestion of a milk-fat emulsion,Bioresource Technology, 61(2), 141-149.
Sayed et al. (1987). Anaerobic treatment of slaughterhouse waste using a granular sludge UASB reactor.Biol. Wastes, 21(1), 11-28.
Uyanik et al. (2002). The effect of polymer addition on granulation in an anaerobic baffled reactor (ABR). Part I: process performance.Wat. Res., 36(4), 933-943.
Uyanik et al. (2002). The effect of polymer addition on granulation in an anaerobic baffled reactor (ABR). Part II: compartmentalization of bacterial populations.Wat. Res., 36, 944-955.
van Langerak et al. (1998). Effects of high calcium concentrations on the development of methanogenic sludge in upflow anaerobic sludge bed (UASB) reactors.Wat. Res., 32(4), 1255-1263.
van Lier et al. (1997). High-rate anaerobic wastewater treatment under psychrophilic and thermophilic conditions.Water Science and Technology, 35(10), 199-206.
Vartak et al. (1997). Attached-film media performance in psychrophilic anaerobic treatment of dairy cattle wastewater.Bioresource Technology, 62(3), 79-84.
Vartak et al. (1998). Mesophilic performance of attached-film reactors subject to low temperature stress.Trans ASAE, 41(5), 1463-1468.
Vidal et al. (2000). Influence of the content in fats and proteins on the anaerobic biodegradability of dairy wastewaters.Bioresource Technology, 74(3), 231-239.
Vieira et al. (1992). Sewage treatment by UASB-reactor: Operation results and recommendations for design and utilization.Water Sci. Technol., 25(7), 143-157.
Wiegant (2001). Experiences and potential of anaerobic wastewater treatment in tropical regions.Water Sci. Technol, 44(8), 107-113.
Wirtz et al. (1997). Laboratory studies on enhancement of granulation in the anaerobic sequencing batch reactor.Water Science and Technology, 36(4), 279-286.
Yu et al. (2001). Enhanced sludge granulation in upflow anaerobic sludge blanket (UASB) reactors by aluminum chloride.Chemosphere, 44(1), 31-36.
Yu et al. (2001). The roles of calcium in sludge granulation during UASB reactor start-up,Wat. Res., 35(4), 1052-1060.
Zeeman et al. (1999). The role of anaerobic digestion of domestic sewage in closing the water and nutrient cycle at community level.Water Sci. Technol,. 39(5), 187-194.
Zeeman et al. (1997). Anaerobic treatment of complex wastewater and waste activated sludge—application of an upflow anaerobic solid removal (UASR) reactor for the removal and pre-hydrolysis of suspended COD.Wat. Sci. and Tech., 35(10), 121-128.
Gavrilescu, M. 2002. Engineering concerns and new developments in anaerobic waste-water treatment.Clean Techn. Environ. Policy, 3:346-362.
Habets, et al. (1997). Anaerobic treatment of inuline effluent in an internal circulation reactor.Water Science and Technology, 35(10):189-197.
Hawkes, et al. 1995. Comparative performance of anaerobic digesters operating on ice-cream wastewater.Wat. Res., 29(2):525-533.
Ince, O. 1998. Performance of a two-phase anaerobic digestion system when treating dairy wastewater.Wat. Res., 32(9):2707-2713.
Jhung, et al. 1995. A comparative study of UASB and anaerobic fixed film reactors with development of sludge granulation.Wat. Res., 29(1):271-277.
Lens, et al. 1998. Effect of staging on volatile fatty acid degradation in a sulfidogenic granular sludge reactor.Water Research, 32(4):1178-1192.
Rinzema, A. 1988. Anaerobic treatment of wastewater with high concentratoins of lipids or sulfate. (Abstract). Ph.D. dissertation No. 1240, Wageningen, Agric. Univ., The Netherlands.
Rinzema, et al. 1993. Anaerobic digestion of long-chain fatty acids in UASB and expanded granular sludge bed reactors.Process Biochemistry, 28(8):527-537.
International Search Report from co-pending PCT/US04/17307 dated Dec. 16, 2005.
Written Opinion of the International Searching Authority from co-pending PCT/USUS04/17307 dated Dec. 16, 2005.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bionest reactor for the application of anaerobic wastewater... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bionest reactor for the application of anaerobic wastewater..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bionest reactor for the application of anaerobic wastewater... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3818429

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.