Biological and algae harvesting and cultivation systems and methods
Abstract
Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.
- Inventors:
- Issue Date:
- Research Org.:
- Global Algae Technology, LLC, Santee, CA (United States)
- Sponsoring Org.:
- USDOE; Defense Advanced Research Projects Agency (DARPA)
- OSTI Identifier:
- 1998501
- Patent Number(s):
- 11680242
- Application Number:
- 16/853,549
- Assignee:
- Global Algae Technology, LLC (Santee, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C12 - BIOCHEMISTRY C12M - APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY
- DOE Contract Number:
- EE0006314; 06-S140633; W911NF-14-2-0017
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 04/20/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Hazlebeck, David A., and Rickman, William. Biological and algae harvesting and cultivation systems and methods. United States: N. p., 2023.
Web.
Hazlebeck, David A., & Rickman, William. Biological and algae harvesting and cultivation systems and methods. United States.
Hazlebeck, David A., and Rickman, William. Tue .
"Biological and algae harvesting and cultivation systems and methods". United States. https://www.osti.gov/servlets/purl/1998501.
@article{osti_1998501,
title = {Biological and algae harvesting and cultivation systems and methods},
author = {Hazlebeck, David A. and Rickman, William},
abstractNote = {Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {6}
}
Works referenced in this record:
Cyclic aeration system for submerged membrane modules
patent, April 2003
- Rabie, Hamid; Cote, Pierre; Singh, Manwinder
- US Patent Document 6,550,747
Membrane System Backwash Energy Efficiency
patent-application, June 2011
- Zha, Fufang; Cao, Zhiyi
- US Patent Application 13/059283; 20110139715
Systems and methods for processing algae cultivation fluid
patent, January 2015
- Parsheh, Mehran; Hippler, Megan; Naieni, Shahrokh A.
- US Patent Document 8,926,844
Microalgal growth characteristics and subsequent influence on dewatering efficiency
journal, August 2009
- Danquah, Michael K.; Gladman, Brendan; Moheimani, Navid
- Chemical Engineering Journal, Vol. 151, Issue 1-3
System for operation of multiple membrane filtration assemblies
patent, April 2001
- Cote, Pierre; Janson, Arnold; Pedersen, Steven Kristian
- US Patent Document 6,214,231
Process for production of alga biopolymer and biomass
patent, May 1978
- Savins, Joseph G.; Anderson, Maynard L.
- US Patent Document 4,087,936
Oil products from algae
patent, July 1982
- Bloch, Moshe R.; Sasson, Joel; Ginzburg, Margaret E.
- US Patent Document 4,341,038
Design of a generic control system for optimising back flush durations in a submerged membrane hybrid reactor
journal, June 2005
- Smith, P.; Vigneswaran, S.; Ngo, H.
- Journal of Membrane Science, Vol. 255, Issue 1-2
Enhanced Membrane Bioreactor Process for Treatment of Wastewater
patent-application, April 2018
- Chidambaran, Ravi; Raina, Pavan; Chandan, Nitin
- US Patent Application 15/563172; 20180093908
Integrated photobioreactor-based pollution mitigation and oil extraction processes and systems
patent-application, January 2008
- Lewnard, John J.
- US Patent Application 11/656330; 20080009055
Pulsed backwash for immersed membranes
patent, April 2003
- Rabie, Hamid; Husain, Hadl; Behmann, Henry
- US Patent Document 6,547,968
Optimization of Algal Product Production through Uncoupling Cell Proliferation and Algal Product Production
patent-application, July 2010
- McCaffrey, William; Burrell, Robert; Burrell, Mark
- US Patent Application 12/640040; 20100162620
Membrane-Based Energy Efficient Dewatering of Microalgae in Biofuels Production and Recovery of Value Added Co-Products
journal, May 2012
- Bhave, Ramesh; Kuritz, Tanya; Powell, Lawrence
- Environmental Science & Technology, Vol. 46, Issue 10
Process control for an immersed membrane system
patent-application, February 2007
- Ginzburg, Boris Fernandes; Yacoub, Francois; Cote, Pierre Lucien
- US Patent Application 11/484815; 20070039888
Production of glycerol, carotenes and algae meal
patent, April 1980
- Avron, Mordhay; Ben-Amotz, Ami
- US Patent Document 4,199,895
Algae Biofuel Carbon Dioxide Distribution System
patent-application, August 2013
- Hazlebeck, David A.
- US Patent Application 13/589951; 20130217082
Method of maintaining clean vertical skeins of hollow fiber membranes and system therefor
patent, November 2001
- Cote, Pierre
- US Patent Document 6,319,411
Impact of aeration rates on particle colloidal fraction in the biofilm membrane bioreactor (BF-MBR)
journal, October 2008
- Ivanovic, Igor; Leiknes, TorOve
- Desalination, Vol. 231, Issue 1-3
Photosynthetic carbon dioxide sequestration and pollution abatement
patent-application, April 2008
- Hazlebeck, David A.; Dunlop, Eric H.
- US Patent Application 11/549541; 20080086938
Apparatus and Process for the Production of Photosynthetic Micro-Organisms, Particularly Algae
patent, November 1953
- Cook, Paul M.
- US Patent Document 2,658,310
A Novel Anaerobic Electrochemical Membrane Bioreactor (AnEMBR) with Conductive Hollow-fiber Membrane for Treatment of Low-Organic Strength Solutions
journal, October 2014
- Katuri, Krishna P.; Werner, Craig M.; Jimenez-Sandoval, Rodrigo J.
- Environmental Science & Technology, Vol. 48, Issue 21
Cyclic aeration system for submerged membrane modules
patent, April 2007
- Cote, Pierre; Janson, Arnold; Rabie, Hamid
- US Patent Document 7,198,721
Photosynthetic oil production in a two-stage reactor
patent-application, April 2008
- Hazlebeck, David A.; Dunlop, Eric H.
- US Patent Application 11/549532; 20080086937
Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate
patent, September 1993
- Cote, Pierre; Smith, Bradley M.; Deutschmann, Ake Adolf
- US Patent Document 5,248,424
Controlled system for supporting algae growth with adsorbed carbon dioxide
patent, November 2018
- Ordway, David W.; Hazlebeck, David A.
- US Patent Document 10,123,495
Novel filtration mode for fouling limitation in membrane bioreactors
journal, August 2008
- Wu, Jinling; Le-Clech, Pierre; Stuetz, Richard M.
- Water Research, Vol. 42, Issue 14
Portable reverse osmosis unit for producing drinking water
patent, September 2000
- Daly, Frederick; Deutschmann, Ake Adolf; Behmann, Henry
- US Patent Document 6,120,688
Cyclic aeration system for submerged membrane modules
patent, March 2007
- Rabie, Hamid; Cote, Pierre; Singh, Manwinder
- US Patent Document 7,186,343
Photoreactor
patent-application, July 2010
- Dauth, Jochen; Voit, Harald
- US Patent Application 12/602424; 20100190227
Process and apparatus for isolating and continuosly cultivating, harvesting, and processing of a substantially pure form of a desired species of algae
patent-application, March 2002
- Henry, Eric C.; Cordrey, Kenneth L.; Bakken, Christopher A.
- US Patent Application 09/971992: 20020034817
Cyclic aeration system for submerged membrane modules
patent, June 2001
- Cote, Pierre; Janson, Arnold; Rabie, Hamid
- US Patent Document 6,245,239
Cyclic aeration system for submerged membrane modules
patent, March 2006
- Rabie, Hamid; Cote, Pierre; Singh, Manwinder
- US Patent Document 7,014,173
Method for growing a biomass in a closed tubular system
patent, October 1984
- Hills, Christopher
- US Patent Document 4,473,970
Method and Apparatus for the Removal of Carbon Dioxide from a Gas Stream
patent-application, April 2009
- Singh, Uday
- US Patent Application 11/875747; 20090104098
Water Treatment Method and Water Treatment Apparatus
patent-application, August 2018
- Imamura, Eiji; Yamauchi, Tokiko; Yasunaga, Nozomu
- US Patent Application 15/746995; 20180221825
Chitosan coagulation–membrane filtration of Chlorella vulgaris
journal, October 2012
- Lee, Duu-Jong; Liao, Guan-Yu; Chang, Yin-Ru
- International Journal of Hydrogen Energy, Vol. 37, Issue 20
Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes
patent, June 2006
- Mahendran, Mailvaganam; Henshaw, Wayne; Behmann, Henry
- US Patent Document 7,063,788
Water treatment plant with immersed membranes
patent, February 2011
- Phagoo, Deonarine; Thompson, Douglas Joseph; Penny, Jeffrey
- US Patent Document 7,879,229
Gas-scrubbed hollow fiber membrane module
patent, December 2000
- Zha, Fufang; Kopp, Clinton V.; McMahon, Robert
- US Patent Document 6,156,200
Method for Harvesting Microalgae and Device for Implementing Said Method
patent-application, March 2014
- Kabakian, Ediuard
- US Patent Application 14/115142; 20140065701
Effects of various backwash scenarios on membrane fouling in a membrane bioreactor
journal, February 2009
- Yigit, N. O.; Civelekoglu, G.; Harman, I.
- Desalination, Vol. 237, Issue 1-3
Water filtration using immersed membranes
patent-application, April 2005
- Cote, Pierre; Janson, Arnold; Husain, Hadi
- US Patent Application 11/006626; 20050082227
Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces
patent, July 1998
- Henshaw, Wayne; Mahendran, Mailvaganam; Behmann, Henry
- US Patent Document 5,783,083
Effect of periodic backwash in the submerged membrane adsorption hybrid system (SMAHS) for wastewater treatment
journal, May 2006
- Khirani, Sarah; Smith, Paul James; Manéro, Marie-Hélène
- Desalination, Vol. 191, Issue 1-3
Method of treating bacterial contamination in a microalgae culture with pH shock
patent, November 2015
- Ganuza, Eneko; Tonkovich, Anna Lee
- US Patent Document 9,181,523
A new approach to backwash initiation in membrane systems
journal, July 2006
- Smith, Paul James; Vigneswaran, Saravanamuth; Ngo, Huu Hao
- Journal of Membrane Science, Vol. 278, Issue 1-2
Influence of backwashing, flux and temperature on microfiltration for wastewater reuse
journal, August 2012
- Raffin, M.; Germain, E.; Judd, S. J.
- Separation and Purification Technology, Vol. 96
Enhanced Photobioreactor System
patent-application, November 2015
- Vargas, Jose Viriato Coelho; Balmant, Wellington; Stall, Alexandre
- US Patent Application 14/736623; 20150315534
Design and operating experiences of municipal MBRs in Europe
journal, December 2008
- Itokawa, H.; Thiemig, C.; Pinnekamp, J.
- Water Science and Technology, Vol. 58, Issue 12
Two-Stage Process for Producing Oil from Microalgae
patent-application, July 2008
- Oyler, James R.
- US Patent Application 11/966917; 20080160593
Immersed Screen and Method of Operation
patent-application, June 2013
- Cote, Pierre Lucien; Cumin, Jeffrey Ronald
- US Patent Application 13/314892; 20130146548
Process for purifying water using fine floc and microfiltration in a single tank reactor
patent, February 2000
- Benedek, Andrew; Husain, Hadi; Singh, Manwinder
- US Patent Document 6,027,649
Biological and algae harvesting and cultivation systems and methods
patent, December 2019
- Hazlebeck, David A.; Rickman, William; Corpuz, Rodney
- US Patent Document 10,501,721
Controlled natural purification system for advanced wastewater treatment and protein conversion and recovery
patent, May 1981
- Thompson, Worthington J.
- US Patent Document 4,267,038
Method of control of microorganism growth process
patent, July 1996
- Huntley, Mark Edward; Niiler, Pearn P.; Redalje, Donald
- US Patent Document 5,541,056
Production of glycerol from algae
patent, September 1978
- Avron, Mordhay; Ben-Amotz, Ami
- US Patent Document 4,115,949
Soil treatment methods
patent, July 1976
- Fogel, Samuel; Foster, Patricia L.; Schenck, Paula
- US Patent Document 3,969,844
Filtering Method, and Membrane-Filtering Apparatus
patent-application, May 2012
- Suzumura, Keitaro; Tsukahara, Takashi
- US Patent Application 13/379919; 20120125846
Efficacy of relaxation, backflushing, chemical cleaning and clogging removal for an immersed hollow fibre membrane bioreactor
journal, September 2012
- Zsirai, T.; Buzatu, P.; Aerts, P.
- Water Research, Vol. 46, Issue 14
Filtration Module Including Membrane Sheet with Capillary Channels
patent-application, March 2011
- Aerts, Peter E. M.; Moll, David J.
- US Patent Application 12/858805; 20110049038
Water filtration using immersed membranes
patent, April 2006
- Cote, Pierre; Janson, Arnold; Husain, Hadi
- US Patent Document 7,025,885
Algal cell growth, modification and harvesting
patent, March 1984
- Kessler, John
- US Patent Document 4,438,591
Effects of backwash conditions on out-to-in membrane microfiltration
journal, September 1998
- Hillis, P.; Padley, M. B.; Powell, N. I.
- Desalination, Vol. 118, Issue 1-3
Apparatus and method for membrane filtration with enhanced net flux
patent, September 1999
- Lawrence, Darren; Hellenkamp, Theo A. A.
- US Patent Document 5,958,243
Pressurized Backflush System
patent-application, March 2003
- McGowan, David R.
- US Patent Application 09/943716; 20030042184
Method of Separation of Algal Biomass from Aqueous or Marine Culture
patent-application, April 2012
- Hu, Qiang; Sommerfeld, Milton; CHen, Yongsheng
- US Patent Application 13/259949; 20120094361
Systems and Methods for Cultivating and Harvesting Blue Water Bioalgae and Aquaculture
patent-application, September 2014
- Oney, Stephen K.
- US Patent Application 14/203761; 20140259896
Membrane contactor including a module having hollow fiber membranes and related method for fabricating it
patent-application, July 2005
- Williams, Dennis; Williams, Mark
- US Patent Application 10/764058; 20050161388
Mineral and non-carbon nutrient utilization and recovery during sequential phototrophic-heterotrophic growth of lipid-rich algae
journal, March 2014
- Bohutskyi, Pavlo; Liu, Kexin; Kessler, Ben A.
- Applied Microbiology and Biotechnology, Vol. 98, Issue 11
Effects of relaxation and backwashing conditions on fouling in membrane bioreactor
journal, October 2008
- Wu, Jinling; Le-Clech, Pierre; Stuetz, Richard M.
- Journal of Membrane Science, Vol. 324, Issue 1-2
System for maintaining a clean skein of hollow fibers while filtering suspended solids
patent, August 1999
- Pedersen, Steven Kristian; Behmann, Henry
- US Patent Document 5,944,997
Permeability and clogging in an immersed hollow fibre membrane bioreactor
journal, December 2012
- Buzatu, P.; Zsirai, T.; Aerts, P.
- Journal of Membrane Science, Vol. 421-422
Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes
patent, November 2005
- Mahendran, Mailvaganam; Henshaw, Wayne; Behmann, Henry
- US Patent Document 6,964,741
Module Cleaning Method
patent-application, April 2007
- Johnson, Warren Thomas
- US Patent Application 10/595841; 20070075021
Siphon Actuated Filtration Process
patent-application, September 2013
- Kempson, Jeff J.; Downey, Jason R.
- US Patent Application 13/410451; 20130228227
Reaction Casing for a Photosynthetic Reactor and Associated Photosynthetic Reactor
patent-application, September 2012
- Muller-Feuga, Arnaud; Lemar, Michel
- US Patent Application 13/508281; 20120231528
Multi-Stage Immersion-Type Membrane Separation Device and Membrane Separation Method
patent-application, December 2015
- Takabatake, Hiroo; Cheon, Jihoon; Nishio, Aya
- US Patent Application 14/655527; 20150353396
Systems and Methods for Producing Eicosapentaenoic Acid and Docosahexaenoic Acid from Algae
patent-application, September 2010
- Wu, Benjamin Chiau-pin; Stephen, David; Morgenthaler, Gaye Elizabeth
- US Patent Application 12/731024; 20100236137
Cyclic aeration system for submerged membrane modules
patent, April 2011
- Cote, Pierre; Janson, Arnold; Rabie, Hamid
- US Patent Document 7,922,910
System for maintaining a clean skein of hollow fibers while filtering suspended solids
patent, February 2001
- Pedersen, Steven Kristian; Behmann, Henry
- US Patent Document 6,193,890
Cleaning of hollow fiber filters utilized in lumenal gas flow
patent, August 1988
- Ford, Douglas L.
- US Patent Document 4,767,539
Filtering Device and Method of Manufacturing Same
patent-application, December 2011
- Inoue, Keido
- US Patent Application 13/148959; 20110309038
Culturing method, system and apparatus for cell culture
patent, November 1992
- Ishida, Masahiko; Haga, Ryoichi; Matsuzaki, Harumi
- US Patent Document 5,166,067
Optimising the operation of a MBR pilot plant by quantitative analysis of the membrane fouling mechanism
journal, March 2005
- Jiang, T.; Kennedy, M. D.; Guinzbourg, B. F.
- Water Science and Technology, Vol. 51, Issue 6-7
Photosynthetic oil production in a two-stage reactor
patent, March 2010
- Hazlebeck, David A.; Dunlop, Eric H.
- US Patent Document 7,687,261
Ultrafiltration and microfiltration module and system
patent, November 2004
- Husain, Hidayat; Draesner, Andreas; Blair, Michael
- US Patent Document 6,814,861
Method for producing biodiesel from an alga
patent-application, December 2009
- Wu, Qingyu; Xiong, Wei
- US Patent Application 12/313455; 20090298159
Use of air sparging to improve backwash efficiency in hollow-fiber modules
journal, August 1999
- Serra, Christophe; Durand-Bourlier, Laurence; Clifton, Michael J.
- Journal of Membrane Science, Vol. 161, Issue 1-2
Evaluation of fouling deposition, fouling reversibility and energy consumption of submerged hollow fiber membrane systems with periodic backwash
journal, February 2014
- Akhondi, Ebrahim; Wicaksana, Filicia; Fane, Anthony Gordon
- Journal of Membrane Science, Vol. 452
Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate
patent, June 1997
- Mahendran, Mailvaganam; Rodrigues, Carlos Fernando F.; Pedersen, Steven Kristian
- US Patent Document 5,639,373
Cyclic aeration system for submerged membrane modules
patent, October 2010
- Cote, Pierre; Janson, Arnold; Rabie, Hamid
- US Patent Document 7,820,050
Immersed membrane filtration process
patent, October 2001
- Cote, Pierre; Rabie, Hamid; Pederson, Steven
- US Patent Document 6,303,035
Hollow Fiber Membrane Filtration Device and Method for Washing Hollow Fiber Membrane Module
patent-application, August 2013
- Morikawa, Hirofumi; Ikeda, Keiichi; Okubo, Kenichi
- US Patent Application 13/881985; 20130213887
Hollow fiber filter device
patent, October 1989
- Ohkubo, Kazuo; Hayashi, Tadamasa; Nagai, Hiroshi
- US Patent Document 4,876,006
Milling cutter and milling insert with coolant delivery
patent, December 2009
- Prichard, Paul D.; Andras, Linn R.
- US Patent Document 7,625,157
Unstable secondary oil/water emulsion treatment using ultrafiltration: fouling control by backflushing
journal, July 1999
- Srijaroonrat, P.; Julien, E.; Aurelle, Y.
- Journal of Membrane Science, Vol. 159, Issue 1-2
Energy-efficient biological treatment system with filtration membrane
patent-application, June 2007
- Dimitrion, Michael A.; Krall, Joseph G.; Rice, David
- US Patent Application 11/705657; 20070138070
Production of algal bio-polymers
patent, May 1976
- Schenck, Paula; Foster, Patricia L.; Walker, Jr., William W.
- US Patent Document 3,958,364
Cyclic aeration system for submerged membrane modules
patent, March 2004
- Rabie, Hamid; Cote, Pierre; Singh, Manwinder
- US Patent Document 6,706,189
Membrane system backwash energy efficiency
patent, February 2014
- Zha, Fufang; Cao, Zhiyi
- US Patent Document 8,652,331
Water filtration using immersed membranes
patent, May 2005
- Cote, Pierre; Janson, Arnold; Husain, Hadi
- US Patent Document 6,899,812
In situ cleaning system for fouled membranes
patent, April 1995
- Smith, Bradley M.; Deutschmann, Ake Adolf; Goodboy, Kenneth P.
- US Patent Document 5,403,479
Gravity flow filter with backwash control chamber
patent, February 1994
- Schulz, Christopher R.
- US Patent Document 5,288,399
Advanced submerged membrane modules, systems and processes
patent, October 2006
- Ji, Jiang
- US Patent Document 7,122,121
Membrane bioreactor, process and aerator
patent-application, March 2005
- Lin, Minggsng; Husain, Hidayat; Cote, Pierre
- US Patent Application 10/950460; 20050061725
Process and energy-efficient biological treatment system with filtration membrane
patent, January 2009
- Dimitriou, Michael A.; Krall, Joseph G.; Rice, David
- US Patent Document 7,476,322
Production of Protein, Lipides, and Carbohydrates by Culture of Algae
January 1956
- Spoehr, Herman A.; Milner, Harold W.
- US Patent Document 2,732,661
Method using separation membranes to treat a fluid containing matter in suspension and in solution
patent, February 1995
- Espenan, Jean-Michel; Saux, Franck
- US Patent Document 5,393,433
Optimization of operational parameters for a submerged membrane bioreactor treating dyehouse wastewater
journal, July 2005
- Schoeberl, Paul; Brik, Mounir; Bertoni, Marina
- Separation and Purification Technology, Vol. 44, Issue 1
Filtration of biological sludge by immersed hollow-fiber membranes: influence of initial permeability choice of operating conditions
journal, September 2002
- Albasi, Claire; Bessiere, Yolène; Desclaux, Sandrine
- Desalination, Vol. 146, Issue 1-3
Water Treatment System
patent-application, July 2009
- Abe, Norimitsu; Murayama, Seiichi; Ide, Takeshi
- US Patent Application 12/340321; 20090166276
Closed system bioreactor apparatus
patent-application, March 2007
- Sears, James
- US Patent Application 11/510442; 20070048859
Methods and System fir Obtaining Algal Biomass and Cultivation Medium
patent-application, July 2014
- Severino Do Rosario De Quintanilha Dos Santos, Ana Marta; Lamers, Packo Petrus
- US Patent Application 14/233918; 20140206072
Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes
patent, January 2004
- Mahendran, Mailvaganam; Henshaw, Wayne; Behmann, Henry
- US Patent Document 6,682,652
Methods for improving filtration performance of hollow fiber membranes
patent, May 2008
- Bartels, Craig R.; Papouktchiev, Uri
- US Patent Document 7,378,024
Filtration process using hollow fiber membrane module
patent, September 1992
- Sunaoka, Yoshio; Kitazato, Keisuke; Tsuda, Satoru
- US Patent Document 5,151,191
Submerged membrane bioreactor for treatment of nitrogen containing water
patent, September 2003
- Behmann, Henry; Husain, Hidayat; Buisson, Herve
- US Patent Document 6,616,843
Water filtration using immersed membranes
patent, April 2002
- Cote, Pierre; Janson, Arnold; Husain, Hidayat
- US Patent Document 6,375,848
Device for Treating Wastewater Comprising Nitrogen and Phosphorus and a Method for the Same
patent-application, October 2011
- Song, Kyung Guen; Ahn, Kyu Hong; Cho, Kang Woo
- US Patent Application 12/834576; 20110247977
Method of operating a water treatment plant with immersed membranes
patent, February 2012
- Phagoo, Deonarine; Thompson, Douglas Joseph; Penny, Jeffrey
- US Patent Document 8,114,293
Cyclic aeration system for submerged membrane modules
patent, April 2005
- Rabie, Hamld R.; Cote, Pierre; Singh, Manwinder
- US Patent Document 6,881,343
Cultivation, harvesting and processing of floating aquatic species with high growth rates
patent, February 2018
- Javan, Adam; Grieco, William J.; Cumba, Hector
- US Patent Document 9,894,856
Filtration System
patent-application, February 2014
- Noh, Jung-min; Kim, Dae Joong; Park, Doug-eul
- US Patent Application 14/113307; 20140042074