2015 volume 2 - issue 1 department of chemical engineering technology transfer: patents ·...
TRANSCRIPT
1. Transfer of Technology
During this period, USC takes outstanding leadership in n
Department of Chemical EngineeringTechnology Transfer: Patents
NEWSLETTER
Volume 2 - Issue 12015
INSIDE THIS ISSUE 1. Technology Transfer 2. Hybrid membrane bioreactor
(2006) 3. CO2 removal by Glucosamine
aqueous solutions (2009) 4. Nanoparticles in ionic liquids
(2012) 5. Pescaenverde (2012) 6. SeMPAC (2013) 7. Antioxidant from seaweed (2014) 8. REM (2014) 9. ELAN® Technology (2014) 10. List of Patents (2000-2014)
NEWS
• Prof. A. Soto reaches the post of Editor in Fluid Phase Equilibria Magazine (September 2014). http://www.journals.elsevier.com/fluid-phase-equilibria/
• The Science for Environmental Policy service of the European Commission has recently referred a scientific paper of a collaborative work between USC and UAB(October 2014) http://ec.europa.eu/environment/integration/research/newsalert/pdf/eco-design_non-electrical_products_environmental_information_services_sustainable_389na2_en.pdf
• Engineered NanoParticles in Water and Wastewater was the first Technical Seminar organised by REGATA network. Dr. L.Duester from Federal Institute of Hydrology (Germany) and Dr. R. Kaegi from Eawag (Switzerland) were invited speakers (November 2014) http://xornal.usc.es/xornal/acontece/2014_12/noticia_0009.html
• ELAN® technology developed by the BioGroup& FCC Aqualia was awarded with the "Innovation+Sustainability+Network" prize organized by the newspaper EXPANSIÓN (November 2014) http://www.i-ambiente.es/?q=noticias/fcc-aqualia-fccgroup-premio-innovacion-sostenibilidad-red-como-gran-empresa-sostenible
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SpainSchool of EngineeringE-15782 Santiago de Compostela Spain
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• Active participation of researchers from the Department of Research Networks (November 2014): o Water_2020: European Cost Action “Conceiving wastewater treatment in 2020 (http://www.water2020.eu/) o ACV: Spanish Network of Life Cycle Assessment o Regalis: Galician Network of Ionic Liquids o REGATA: Galician Network of Water Treatment
• J.J. Casares and G. Feijoo were invited lecturers in Secondary Schools (Cambados and Tui) in the framework of the USC initiative: "Conservation of the natural environment, common task" (November – December 2014) http://xornal.usc.es/xornal/acontece/2014_11/noticia_0184.html
• One patent from BioGroup was used by Viaquain the design of a wastewater treatment plant to remove organic micropollutants from the University Hospital Complex wastewater in Santiago de Compostela. (December 2014) http://www.lavozdegalicia.es/noticia/sociedad/2014/12/22/depuradora-patentada-usc-elimina-farmacos-cosmeticos/0003_201412G22P249911.htm
• Prof. Juan M. Lemahas published several opinion articles about University Education in the newspaper La Voz de Galicia during the period November 2014 – January 2015 http://www.lavozdegalicia.es/noticia/opinion/2014/11/19/racionalizar-mapa-titulaciones-universitarias/0003_201411G19P15992.htm http://www.lavozdegalicia.es/noticia/opinion/2014/12/08/veinticinco-anos-universidades-galicia/00031418078917434663530.htm http://www.lavozdegalicia.es/noticia/opinion/2015/02/08/tres-dos-cuatro-cinco/0003_201502G8P179911.htm
• H index reached a value of 61, ranking TOP3 in the area of Chemical Engineering in Spain (January 2015) http://www.usc.es/enxqu/?q=taxonomy/term/46
• More than 250 high school students visited the School of Engineering (February 2015)
1. Technology Transfer
The teaching and research staff of thareas that characterize higher educatio
• Education http://www.usc.es/enxqu/?q=node/
Degrees, Master and DoctorateTheses were defended for the 55.4% with European or Internat
• Basic and applied research http://www.usc.es/enxqu/?q=node/
In the period 2000-2014 a total published in national and intejournals; 870 (87.3%) belong to j
Journal Citation Report® (SCI Joreached a value of 61, among ththe Area of Chemical Engineering
• Technology Transfer http://www.fundacioncyd.org/publcyd/otraspublicaciones
In 2014 USC leads the rankinguniversities with more national (98) in the Spanish Patent and(Source: "The Spanish univerperspective, 2014" by the Foureport also highlights the excelleoutput in the environmental fie2000-2012, the number of pateranks USC as the fourth among S The transfer of knowledge fromEngineering, through two mechathat are in operation are:
- Hybridmembranebioreact- Pescaenverde®, trademark- SeMPAC Technology. Lice
Hospital of Santiago de Co- ELAN® technology. FCC A
wastewater treatment pla- Integrated system of meth
wastewater. It has signed
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e Department of Chemical Engineering developon institutions:
/172 e. For example, 83
period 2000-2014, tional Mention.
/174
of 996articles were ernational scientific journals included in
ournals).The h-index he TOP3 in Spain in g.
icaciones-
g of Spanish public patent applications
d Trademark Office rsities. A regional
undation CYD). This ence of its scientific eld. For the period nts was 243, which
Spanish universities.
m the university to society is also a key axis in thanisms: (1) contracts with companies and (2) pub
or. Licensed to Espina &Delfin Obras hidráulicas.k exploited by USC (http://www.usc.es/pescaenverd
nsed to AGBAR-Viaqua. This technology is beingompostela Aqualia applies this technology in the design anant in Vigo hanogenic reactor &MBRr for the removal of orga first option with the company AGBAR-Viaqua
School of EngineeringE-15782 Santiago de Compostela Spain
ps activities in three major
he Department of Chemical blication of patents. Patents
. de/) g installed at the University
nd construction of the new
anic matter and nitrogen in
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2. Hybrid biological membrane reactor for the treatment of urban and industrial wastewater
Juan Manuel Garrido, Ramón MëndezPampín, VinkaOyanedelBasaez(2006)
This invention refers to a hybrid biological membrane reactor for the treatment of industrial and urban waste water with organic and nitrogenous matter. It is constituted of three chambers: anoxic, aerobic and membrane filtration chambers (Figure 1). The proposed reactor is a compact system with which very low or negligible levels of solids in suspension in the purified effluent are obtained. The present invention implies improvements in the waste water biological treatment systems, in general, and hybrid reactors in particular. One of the main features of the hybrid reactor proposed is that of confining particles of a plastic granular support in the aerobic chamber, having a density slightly less than that of the water. This support neither breaks nor deteriorates by use in the system; furthermore, if will not break due to growth of the biomass therein, as can occur in systems using microorganisms immobilized in the polymeric gels, since the growth is limited to the surface of the plastic support.
1 2 3
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6 10
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4 817
15,16
A
A´
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The assembly of membrane filtration units in the hybrid reactor makes it possible to obtain an effluent with low levels of solids in suspension, which would comply with the most demanding dumping requirements of this pollutant, significantly decreases the dumping of microorganisms with the effluent (including pathogens and other health vectors); furthermore, it is suitable for dumping close to marine culture areas or fish hatcheries and collection areas for collecting waters used for irrigation or for producing drinking water. At this moment a 3.8 m3 pilot plant is being operated for treating hospitality wastewater (Figure 2) with the participation of the Galician company “Espina Obras Hidráulicas” in the frame of the Interconnecta project “Demagua”. A First option patent agreement was assigned between the USC and this Company
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Figure 1.scheme of the reactor constituted of three chambers: anoxic chamber (1), aerobic chamber (2) and filtration chamber (3)
Figure 2.Image of the 3.8 m3 pilot plant used for treating hospitality wastewater
3. Glucosamine aqueous solutLucía Vázquez Orgeira, Diego Gó
This patent was developed by the GI-16and it is based on the use of gluccarbon dioxide and other acid gases caabsorption. This proposal tries to avcharacteristics of typical commercial carbon dioxide separation, taking intohazards. Table 1 shows a comparischemical hazards corresponding to theused amines at industrial (monoethanolamine), DEA (diethan(methyldiethanolamine) y AMP (2-apropanol), and also, the amine used (glucosamine). The absence of chemproposed chemical solvent allows suitable candidate to substitute the typon amines.
The obtained results during the expesolutions remove carbon dioxide by cThe reaction pathway involving bicarbexperimental results shown in figure aqueous solutions). The lower absocharacteristics
An important handicap of the patent’sby common thermal treatments (stripbeen overcame by the developmentprecipitation processes to remove reallow the use of GA aqueous solution(Figure 2).
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Camine (mol·L-1)
0 0.1 0.2 0.3
NA·1
0-3 (m
ol·m
-2·s
-1)
0
1
2
3
4
Figure 1.CO2 absorption rate for M
tions for CO2 and other acidic gases reómez Díaz, José M. NavazaDafonte (2009)
621 research team osamine (GA) for
apture by chemical void the negative
amines used for account chemical son between the e more commonly
level: MEA nolamine), MDEA amino-2-methyl-1-in the patent: GA
mical risks for the consider it as a pical solvents base
erimental studies used in this patent showed chemical absorption producing stable substancebonate production provides a lower reaction ra1, in comparison with the behavior of the best
orption rate can be overcome taking into ac
s proposal is the impossibility to regenerate glucpping) due to the high amine degradation. This t of new regeneration techniques in our teaaction products and regenerate the protonatens in a continuous regime because the regene
School of EngineeringE-15782 Santiago de Compostela Spain
Table 1. Chemical risk
0.4 0.5
MEA
GA
MEA and GA
Reg
Fresh 1st
α (
mol
CO
2 ·m
ol a
min
e-1)
0
0.2
0.4
0.6
0.8
1
1.2
Figure 2.Regeneration
emoval
that glucosamine aqueous es, mainly bicarbonate ion. ate, in agreement with the t available technique (MEA ccount the other positive
osamine aqueous solutions negative characteristic has
am using ion exchange or ed amine. These processes ration step suitable values
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ks for typical industrial amines
generation cycle
2nd 3rd 4th
precipitation
ion-exchange
n results for GA solutions
4. Method for the preparationAlberto Arce, Eva Rodil, Borja Ro
This invention relates to a method for liquids. Specifically the invention relmethod for the preparation of dispersan ionic liquid. This patent was obtainand Phase Equilibria (picture on the rigGroup has a deep knowledge in separapioneers in the use of ionic liquids.
Ionic liquids are a rather new kind of For instance, most ionic liquids are ablhave a very good thermal stabilitytemperatures. But above all, their characteristic and profitable property.common organic volatile solvents wilatmosphere, making the process mormind, this patent shows the fabricawithout needing any other reactant or
The target material is fragmented untitaking advantage of the long alkyl chainphase, obtaining stable dispersions concentrations as high as 50% w/w. depending on the dispersed solid, the u
Furthermore, the invention shows a prmetal sulfides and silver halides (Fe2
applications of the nanoparticles benanoparticles are commonly used in coshowed interest: Siemens, iolitec, solvi
Web: www.usc.es/enxqu E-mail: [email protected] Twitter:
Figure 2.Precipitated nanopa
n of nanoparticles in ionic liquids odríguez-Cabo, Ana Soto (2012)
the preparation of nanoparticles in ionic lates to a simple, quick and effective ions of nanoparticles (nanofluids) within ed by the Group of Separation Processes ght), in January 21st, 2011. The research ation processes, being one of the Spanish
solvents with very attractive properties. e to solve a great variety of compounds, , and are liquid in a wide range of negligible vapor pressure is the most Thus, the use of ionic liquids instead of l avoid the release of pollutants to the
re environmentally friendly. With this in ation of nanoparticles in ionic liquids, solvent
il the nanoscale under stirring and heating insidns of the selected ionic liquids, the fine particles of nanoparticles in the ionic liquid, also knoThese dispersions can be used as lubricants,
used ionic liquid, and the achieved concentration
recipitation method to obtain the solid nanomat
2O3, TiO2, CdO, CdS, PbS, MnS, ZnS, AgI, AgCl)come even larger. Besides the already ment
osmetic industry, ceramic materials and electrononic, thermacore, irrilliant
School of EngineeringE-15782 Santiago de Compostela
articles Figure 3.Size dist
0
10
20
30
40
1 3
% in
num
ber
D
e an ionic liquid. Then, and are suspended in the liquid
own as ionanofluids, with thermal fluids, catalysts...
n.
terial. Several metal oxides, )were obtained. Then, the ioned catalytic use, these
nic devices. Companies than
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Figure 1.Ionanofluid
tribution of nanoparticles
5 7 9 11 13
Diameter (nm)
5. Pescaenverde(http://www.usIan Vazquez Rowe, Pedro Villanu
pescaenverde is a registered trademastandards available in ISO 14024, that ep-EROI of products captured by fishinaims to become an important certificainformation to improve the managemreducing GHG emissions and energy int
The target audience of the certificatioskippers or fishermen and other stakeNevertheless, the way in which the stakeholders in the initial stages of thetheir products and gain preferentialpreviously discussed, this certificationlabel, ideal for quick purchase decisinstitutions, research centres and, ultim
Ta
Regu
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SES
• Fish • Shellfish
• Certification
sc.es/pescaenverde/) ueva, Mª Teresa Moreira Vilar, Gumersindo
ark in Spain since January 2012. It is a Type I edevelops a software that focuses specifically on
ng vessels landing seafood products for sale in thation scheme in the fishing and seafood sectors,ment of Spanish fisheries, increase their fuel eftensity linked to these operations
on scheme includes all the major stakeholders holders from the fishing sector, linked to auctiocertification scheme is structured, in its curre
e supply chain of seafood products in Spain. It ai access in their trade relationships with who also provides consumers with a summarised e
sion-making situations. Finally, other groups omately, policy-makers, may benefit from the outc
Indicators
Scopearget
ulation
School of EngineeringE-15782 Santiago de Compostela Spain
• •
o Feijoo Costa (2012)
eco-label, according to the n calculating the CF and the he Spanish market. The seal , in order to provide useful fficiency and contribute to
of fishing systems, such as ns or processing industries. nt version, is destined for ms to allow them to certify olesalers and retailers. As
environmental performance of interest, such as NGOs, comes of this certification.
NEWSLETTER
6/11
• Life Cycle
Carbon footprint EROI
6. Process for the removal of pharmaceutical products present in wastewater (SeMPAC) Francisco Omil, Denisse Serrano, Sonia Suárez, Juan M. Lema (2013)
Technical Field of the Invention
The present invention relates to a process for the removal of contaminating pharmaceutical products present in wastewater in trace concentrations by means of adding powdered activated carbon in a sequential bioreactor coupled to a contiguous chamber containing an ultrafiltration membrane.
State of the Art
Pharmaceutical compounds are a group of organic pollutants with a large number of active ingredients that are consumed on a massive scale in developed societies. These substances are used in the formulation of pharmacological products as well as personal care products (shampoos, body lotions, sunscreens, etc.), therefore covering a wide spectrum concerning the molecular structure, physicochemical properties, biodegradability potential and persistence. Thousands of active ingredients are being used today for synthesizing an even larger number of products. Taking the scope of the EU as an example, more than 3000 different substances are being used in human medicine alone, to which a very significant number of drugs for veterinary use must be added. In terms of the prospects for upcoming years, an increase in medicament consumption is envisaged primarily due to gradual population aging, although it may also be due to the improvement in the quality of life. Legislative regulation of these substances in the environment is imminent, as indicated in the Water Framework Directive (2000/60/EC). In this sense, a list of priority pollutants is updated every four years which already includes several pharmaceutical compounds.
In the present invention, the process proposes using a sequential bioreactor operated under nitrification-denitrification conditions in the presence of PAC, coupled to a chamber containing an ultrafiltration membrane which, as a whole, entails a very efficient process for the removal of pharmaceutical compounds. The removal of those compounds that are more biodegradable is favored by operating under nitrification-denitrification conditions, with high biomass concentrations and long SRTs, whereas the presence of PAC allows removal by adsorption of the more persistent trace pollutants (e.g., carbamazepine), and finally, sorption of the more lipophilic substances (e.g., musk fragrances) on the sludge will increase due to the development of agglomerates (flocs) that are smaller than those growing in a CAS due to the presence of the ultrafiltration membrane. Furthermore, since it is a process with membranes, the retention of the PAC and of the sludge, and therefore of the sorbed compounds, is complete
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Figure 1.Laboratory and Pilot Plant Scale
7. Antioxidant extract from brJorge Sineiro, Maribel Sánchez, M
This patent describes the process and obtained by ultrasound-assisted extraccover several recycle/feed ratios andproducts after centrifugation and/or fil
The patent subject comprises Saccorhizapolyschidesand Sargassummobtained at temperatures lower tharesponsible for the antioxidant activitypolyphenols content in the freeze-drieper gram of product), followed by Asco
The extracts were also characterized foand fucoidan content, which was exprapplied in food, food supplements andof the use of freeze-dried extracts in ththe extract. Another advantage is the the mass transport and also can reduce
Figure 2.Sargassummuticu
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SES
rownseaweed and obtaining procedurMaría JoseNuñez (2014)
the antioxidant properties of aqueous extracts fction at pilot-plant scale (Figure 1). An experime
d ultrasound wave amplitude. The extracts areltration.
the macroalgae species Ascophyllumnodomuticum (Figure 2). The antioxidant activity ofan 40 °C, was characterized. Phlorotannins ay. An example of the chromatographic profile is sed product from Bifurcariabifurcata was the higophyllumnodosum (44 mg equivalents per gram o
or extraction yield, alginates content, expressed ressed as the sulfate equivalent mass.This type d in cosmetic products (intended for eco-certifiedhe cosmetic industry is their stability, avoiding thigh solubility and concentration, which can im
e the associated environmental impact.
Figure 1.Schematic flow diagram
um Figure 3.Phlorotannins chro
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re
from four seaweed species, ental design was applied to e obtained as freeze-dried
osum, Bifurcariabifurcata, f the extracts, which were are the main components shown in Figure 3. The total ghest (62.4 mg equivalents of product).
as glucuronic acid content, of aqueous extracts can be d cosmetics). An advantage he need of preservatives in
mprove logistics by reducing
omatographic profile
8/11
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8. Procedure and system to rein an enzymatic membrane Juan Manuel Lema, María Teres
The discharge into the aquatic enviro
major environmental problem due to
and human beings. Conventional was
chemicals are released to the environm
the removal of organic micropollutant
compounds present in industrial efflue
procedure is based on the use of an en
to a nanofiltration or ultrafiltration cer
the reactor.
Figure 2.Bisphenol
influent tothe Econce
Figure
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emove organic micropollutants from rreactor coupled to a ceramic membra
sa Moreira, Gumersindo Feijoo, Adriana Arca
onment of organic micropollutants from wastew
the potential adverse effects that these chemic
stewater treatment plants are not designed to
ment in the treated effluent. The present invent
ts as pharmaceuticals and personal care product
ents and secondary effluents from sewage trea
nzymaticmembrane reactor, which comprises a s
ramic membrane that allows the separation of t
l A (BPA) (�) and nonylphenol (NP) ( ) concentration EMR, laccase activity ( ) in the stirred tank reactor anentration of BPA (�) and NP ( ) in the effluent
1.Scheme of the micropollutant removal system
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residual wastewaters ane a, GemmaEibes (2014)
water treatment plants is a
als have on animals, plants
o remove them and these
tion relates to a process for
ts and endocrine disrupting
atment plants. The removal
stirred tank reactor coupled
the enzyme and its reuse in
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in the nd
9/11
9. ELAN®Technology: Method for starting up and controlling a biological process for ammonium removal by the action of autotrophic bacteria in wastewater José Ramón VazquezPadín, Roberto Fernández González, Jose Luis Campos Gómez, Anuska Mosquera Corral, Ramón Méndez Pampín(2014)
The present invention is related to a method for starting up and controlling a biological process for removing nitrogen contained in wastewater through a combined stage of nitrification and anaerobic oxidation of ammonium ion (Anammox), in which an aerobic reaction of partial nitrification of the ammonium contained in the wastewater to nitrite with oxidizing bacteria and addition of oxygen, and a nitrogen production anoxic reaction with ammonium and nitrite autotrophic denitrifying bacteria, of the phylum Planctomycetes, take place at the same time, both bacterial populations being arranged in the form of biofilm in the same reactor such that the oxidizing bacteria are on theoutside of the
biofilm contacting an aerobic zone inside the reactor and the autotrophic bacteria are inside the biofilm creating an anoxic zone, characterized in that the reactor is fed with a wastewater flow and air/oxygen are injected into the same continuously until its shutdown, i.e. aeration is facilitated in the entire reaction stage, keeping the dose of dissolved oxygen in the reactor at a level higher than 0.6 mg/l.In order to ensure the stability of the process, the air/oxygen supply to the reactor, the hydraulic residence time and the alkalinity in the feed are controlled such that the (Alkalinityinput-Alkalinityoutput)/ (Conductivity input-Conductivityoutput) ratio must be kept, ideally, below 13 mM/(mS/cm 25ºC). In order to maintain a high efficiency of the process, the alkalinity at the output of the reactor must be between 5% and 25% of the alkalinity at the input.
1. Homogenization tank 2. Effluent from anaerobic digestion 3. Blower for injection of the air or oxygen stream. 4. ELAN Reactor 5. Plant header 6. External alkalinity injection device (for example NaHCO3). 7. Flow rate sensor/indicator. 8. Level sensor/indicator. 9. Conductivity sensor/indicator. 10. Oxygen sensor/indicator. 11. Alkalinity meter. 12. Frequency controller/inverter. 13. Air stream injection control valve.
The present invention belongs to the area of treatment of wastewater having a biodegradable organic matter/ nitrogen ratio lower than 2 kg biodegradable COD/kg N. These waters are characterized by high nitrogen content, such as discharges and wastewater, especially waters and urban discharges treated in wastewater treatment plants (WWTP), and more especially the liquid effluent from anaerobic digesters of the WWTPs, having a high concentration of ammonium as a result of said fermentation process. An example of a current that can be treated through this invention is the drainage of the digested sludge dehydration system in a sludge line of a WWTP.
AEROBIC
NH4+
N2 ANOXICNO2-
O2
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0 20 40 60Tiempo (d)
Nitr
ogen
rem
oval
rate
(mg
N/(L
·d))
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Time (d)
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Figure 2.System layout
Figure 1.Partial nitrification and anammox processes occurring in the
granular biomass
Figure 3.Nitrogen removal rate in the partial nitrification-anammox process
10. List of Patents (2000-2014) 2014 • J.M. Garrido, D. Buntner, A. Sánchez, J.M. Lema. Sistema integrado de reactor anaerobio metanogénico y biorreactor
de membranas para la eliminación de materia orgánica y nitrógeno en aguas residuales. P. Española ES2401445 B2 • J.M. Lema, M.T. Moreira, G. Feijoo, A. Arca, G. Eibes. Procedimiento de eliminación de contaminantes orgánicos
hidrofóbicos de suelos contaminados usando un aceite vegetal. P. Española ES2425995 B2 • M. Rahman, H. Rodríguez, N. Sun, R.P. Swatloski, D.T. Daly, R.D. Rogers. Ionic liquid systems for the processing of
biomass, their components and/or derivatives, and mixtures thereof. USA Patent US 8,668,807 • J. Sineiro, M. Sánchez, M.J. Nuñez. Extracto antioxidante a partir de macroalgas pardas y procedimiento de obtención.
P. Española ES2441469 B2 • J.M. Garrido, D. Crutchik. Procedimiento y sistema de cristalización de estruvita para la recuperación de fosfatos en
aguas residuales. P. Española ES2455740 B2 • J.R. Vazquez, R. Fernández, J.L. Campos, A. Mosquera, R. Méndez (2014). Method for starting up and controlling a
biological process for ammonium removal by the action of autotrophic bacteria in wastewater. EuropeanPatent EP2740713 A1
• J.M. Lema, M.T. Moreira, G. Feijoo, A. Arca, G. Eibes. Procedimiento y sistema de eliminación de microcontaminantes orgánicos en aguas residuales mediante un reactor enzimático de membrana cerámica. P. Española ES2469741 B2
2013 • D. Buntner, J.M. Garrido, J.M. Lema. Reactor biológico de membranas de tres etapas, metanogénica, aerobia y de
filtración, para la depuración de aguas residuales. P. Española ES2385002 B2 • J.L. Campos, A. Mosquera, A. Val, J. Pérez, E. Isanta, J. Carrera. A method and a system for enhancing Nitrogen
removal in a granular sequencing batch reactor (GSBR) and a computer program product". European Patent EP13382301.3
• F. Omil, S., Serrano, D., Suárez, J.M. Lema.Process for the removal of pharmaceutical products present in wastewater. EuropeanPatentEP12777603.7
2012 • I. Vazquez, P. Villanueva, M.T. Moreira, G. Feijoo. Software de cálculo de huella de carbono para el sector pesquero:
pescaenverde. Marca Española N. de asiento registral 03/2012/201 • J.M. Lema, G. Feijoo, M.T. Moreira, R. Taboada-Puig, G. Eibes y T. Lu-Chau. Procedimiento de degradación de
compuestos orgánicos recalcitrantes presentes en efluentes industriales mediante un sistema en dos etapas. Patenta Española ES23732729 B2
• E. Pérez, S. González, L. Hernández, D. Martínez, L.E. Trujillo, C. Menéndez, A. Sobrino, R. Ramirez, G. Feijoo, J.M. Lema. Método de obtención de 1-Kestosa. Patente Cubana CU/P2012/000138
• A. Arce, E. Rodil, B. Rodríguez-Cabo, A. Soto. Procedimiento para la preparación de nanopartículas en líquidos iónicos. WorldPatent WO 2012/013852 A2
2009 • J.M. Navaza, D. Gómez, L. Vázquez. Uso de disoluciones acuosas de glucosamina para la eliminación de dióxido de
carbono (CO2) y otros gases ácidos. P. Española ES2301394 2006 • J.M. Garrido, R. Méndez, V. Oyanedel.Hybrid biological membrane reactor for the treatment of urban and industrial
wastewater. European Patent 1 484 287 B1 2004 • J.M. Lema, G. Feijoo, M.T. Moreira, I. Mielgo, C. López. Procedimiento de degradación de compuestos orgánicos
presentes en efluentes industriales mediante reactores enzimáticos y su aplicación en la decoloración de tintes industriales”. EuropeanPatent 02748877
2003 • F. Omil, E. García, J.M. Lema. Procedimiento de obtención de un concentrado rico en proteína a partir de las aguas
residuales generadas durante la cocción de atún en las industrias de procesado de productos marinos. P. Española 200301668
• G. Vázquez, G. Antorrena, J. González. Procedimiento de extracción de taninos de corteza de Pinuspinaster y obtención de adhesivos taninos-fenol-formaldehido (TPF) para la fabricación de contrachapados de madera. P. Española ES 2171351 A1
2000 • F. Omil, J.M. Blanco, J.M. Lema. Procedimiento de obtención de un aceite combustible a partir de las aguas residuales
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