WATER RESEARCH AND ENVIRONMENTAL BIOTECHNOLOGY LABORATORY

2022

Detection of SARS-CoV-2 RNA in wastewater and importance of population size assessment in smaller cities: An exploratory case study from two municipalities in Latvia, 2022, Gudra, D., Dejus, S., Bartkevics, V., (…), Juhna, T., Fridmanis, D., 2022, Science of the Total Environment 823,153775

Quantification of different fatty acids in raw dairy wastewater, 2022, Ekka, B., Mieriņa, I., Juhna, T., Turks, M., Kokina, K., 2022, Cleaner Engineering and Technology 7,100430

The effect of chitosan nanoparticles on Escherichia coli viability in drinking water disinfection, 2022, Denisova, V., Mezule, L., Juhna, T., 2022, Water Practice and Technology 17(2), pp. 537-543

Affordable Pretreatment Strategy for Mitigation of Biofouling in Drinking-Water Systems, 2022, Zemite, M., Mezule, L., Gruskevica, K., (…), Machado, I., Melo, L.F., 2022, Journal of Environmental Engineering (United States) 148(2),04021082

2021

Cleaning of Ceramic Ultrafiltration Membranes after Filtration of Hay Hydrolysate. Gruškeviča, K., Strods, M., Rubulis, J., Mežule, L., No: Environment. Technology. Resources: Proceedings of the 13th International Scientific and Practical Conference. Vol.3, Latvija, Rēzekne, 17.-18. jūnijs, 2021. Rēzekne: Rezekne Academy of Technologies, 2021, 89.-94.lpp. ISSN 1691-5402. Pieejams: doi:10.17770/etr2021vol3.6579

Rapid Catalytic Water Disinfection from Earth Abundant Ca2Fe2O5 Brownmillerite. Vanags, M., Mežule, L., Spule, A., Kostjukovs, J., Šmits, K., Tamm, A., Juhna, T., Vihodceva, S., Kaambre, T., Baumane, L., Začs, D., Vasiliev, G., Turks, M., Mieriņa, I., Sherrell, P., Šutka, A., Advanced Sustainable Systems, 2021, Vol. 5, No. 12, 2100130.-2100130.lpp. ISSN 2366-7486. e-ISSN 2366-7486. Pieejams: doi:10.1002/adsu.202100130

Assessment of Different Binders for Activated Carbon Granulation for the Use in CO2 Adsorption. Ārgalis, P., Jerāne, I., Žūriņš, A., Veģere, K., Assessment of Different Binders for Activated Carbon Granulation for the Use in CO2 Adsorption. Environmental and Climate Technologies, 2021, Vol. 25, No. 1, 1086.-1100.lpp. ISSN 1691-5208. e-ISSN 2255-8837. Pieejams: doi:10.2478/rtuect-2021-0082

Perspective Biomethane Potential and Its Utilization in the Transport Sector in the Current Situation of Latvia. Ārgalis, P., Veģere, K., Perspective Biomethane Potential and Its Utilization in the Transport Sector in the Current Situation of Latvia. Sustainability, 2021, Vol. 13, No. 14, 1.-18.lpp. ISSN 2071-1050. Pieejams: doi:10.3390/su13147827

Affordable Pretreatment Strategy for Mitigation of Biofouling in Drinking-Water Systems. Zemīte, M., Mežule, L., Gruškeviča, K., Kokina, K., Rubulis, J., Juhna, T., Gottschalk, N., Domer, F., Jagau, R., Rowe, K., Augustin, W., Scholl, S., Pereira, A., Barros, A., Machado, I., Melo, L., Journal of Environmental Engineering (United States), 2022, Vol. 148, No. 2, 04021082-1.-04021082-14.lpp. ISSN 0733-9372. Pieejams: doi:10.1061/(ASCE)EE.1943-7870.0001968

Removal of Pharmaceutical Compounds from Municipal Wastewater by Bioaugmentation with Fungi: An Emerging Strategy Using Fluidized Bed Pelleted Bioreactor. Daļecka, B., Strods, M., Cacivkins, P., Ziverte, E., Rajarao, G., Juhna, T., Environmental Advances, 2021, Vol. 5, 1.-11.lpp. ISSN 2666-7657. Pieejams: doi:10.1016/j.envadv.2021.100086

Novel Qualitative Screening Approach for Determination of ABE in Fermentation Products. Mežule, L., Stīpniece, A., Chemical Engineering Transactions, 2021, Vol. 86, 43.-48.lpp. ISSN 2283-9216. Pieejams: doi:10.3303/CET2186008

Characterization of Novel Biopolymer Blend Mycocel from Plant Cellulose and Fungal Fibers. Irbe, I., Filipova, I., Skute, M., Zajakina, A., Spunde, K., Juhna, T., Polymers, 2021, Vol. 13, No. 7, 1.-1.lpp. ISSN 2073-4360. Pieejams: doi:10.3390/polym13071086

Increasing Phosphorus Uptake Efficiency by Phosphorus-Starved Microalgae for Municipal Wastewater Post-Treatment. Lavrinovičs, A., Murby, F., Jakubauska, E., Mežule, L., Juhna, T., Microorganisms, 2021, Vol. 9, No. 8, 1.-1.lpp. e-ISSN 2076-2607. Pieejams: doi:10.3390/microorganisms9081598

New Device for Air Disinfection with a Shielded UV Radiation and Ozone. Martinovs, A., Mežule, L., Revalds, R., Pizica, V., Deņisova, V., Skudra, A., Kolcs, G., Zaicevs, E., Juhna, T., Agronomy Research, 2021, Vol. 19, No. 1, 834.-846.lpp. ISSN 1406-894X. Pieejams: doi:10.15159/AR.21.068

Cleaning Methods for Ceramic Ultrafiltration Membranes Affected by Organic Fouling. Gruškeviča, K., Mežule, L., Membranes, 2021, Vol. 11, No. 2, 1.-1.lpp. ISSN 2077-0375. Pieejams: doi:10.3390/membranes11020131

Natural Grasslands as Lignocellulosic Biofuel Resources: Factors Affecting Fermentable Sugar Production. Mežule, L., Strazdiņa, B., Daļecka, B., Skripsts, E., Juhna, T., Energies, 2021, Vol. 14, No. 5, 1.-1.lpp. ISSN 1996-1073. Pieejams: doi:10.3390/en14051312

2020

Comparison of phosphorus removal efficiency of conventional activated sludge system and sequencing batch reactors in a wastewater treatment plant, Denisova, V., Tihomirova, K., Neilands, J., (…), Mezule, L., Juhna, T., 2020, Agronomy Research, 18(Special Issue 1), pp. 771-780

Isolation of fungal strains from municipal wastewater for the removal of pharmaceutical substances, Open Access, Dalecka, B., Oskarsson, C., Juhna, T., Rajarao, G.K., 2020, Water (Switzerland), 12(2),524

Constructive use of filamentous fungi to remove pharmaceutical substances from wastewater, Dalecka, B., Juhna, T., Rajarao, G.K., 2020, Journal of Water Process Engineering, 33,100992

Using the time varying Kalman filter for prediction of Covid-19 cases in Latvia and Greece
Open Access, Assimakis, N., Ktena, A., Manasis, C., (…), Zabasta, A., Juhna, T., 2020, 2020 IEEE 61st Annual International Scientific Conference on Power and Electrical Engineering of Riga Technical University, RTUCON 2020 – Proceedings, 9316598

Removal of total phosphorus, ammonia nitrogen and organic carbon from non-sterile municipal wastewater with Trametes versicolor and Aspergillus luchuensis, Open Access, Dalecka, B., Strods, M., Juhna, T., Rajarao, G.K., 2020, Microbiological Research, 241,126586

The occurrence and dietary exposure assessment of mycotoxins, biogenic amines, and heavy metals in mould-ripened blue cheeses, Open Access, Reinholds, I., Rusko, J., Pugajeva, I., (…), Tihomirova, K., Bartkevics, V., 2020, Foods 9(1), 93

Bioprospecting white-rot basidiomycete irpex lacteus for improved extraction of lignocellulose-degrading enzymes and their further application, Open Access, Mezule, L., Civzele, A., 2020, Journal of Fungi, 6(4),256, pp. 1-10

Microalgae starvation for enhanced phosphorus uptake from municipal wastewater, Lavrinovičs, A., Mežule, L., Juhna, T., 2020, Algal Research, 52,102090

2019

Copper(II)–Humic Acid Adsorption Process Using Microporous-Zeolite Na-X, Menad, K., Feddag, A., Juhna, T., 2019, Journal of Inorganic and Organometallic Polymers and Materials, 29(1)

Effect of thermal regeneration of diatomite adsorbent on its efficacy for removal of dye from water, diatomite adsorbent on its efficacy for removal of dye from water Aguedal, H., Iddou, A., Aziz, A., (…), Ločs, J., Juhna, T., 2019, International Journal of Environmental Science and Technology, 16(1), pp. 113-124

Short-term effect of shock a mmonium nitrogen load on activated sludge properties, Golovko, K., Tihomirova, K., Neilands, R., (…), Mezule, L., Juhna, T., 2019, Water Science and Technology, 80(11), pp. 2191-2199

Sol-gel auto-combustion synthesis of Ca2Fe2O5 brownmillerite nanopowders and thin films for advanced oxidation photoelectrochemical water treatment in visible light, Vanags, M., Spule, A., Gruškeviča, K., (…), Vlassov, S., Šutka, A., 2019, Journal of Environmental Chemical Engineering, 7(4),103224

The role of magnetic field in the biopharmaceutical production: Current perspectives, Open Access, Rekena, A., Didrihsone, E., Vegere, K., 2019, Biotechnology Reports, 22,e00334

Alkali-activated metakaolin as a zeolite-like binder for the production of adsorbents, Open Access, Vegere, K., Vitola, L., Argalis, P.P., Bajare, D., Krauklis, A.E., 2019, Inorganics, 7(12),141

The impact of substrate–enzyme proportion for efficient hydrolysis of Hay, Open Access, Mezule, L., Berzina, I., Strods, M., 2019, Energies, 12(18),3526

Electrochemical/granular Activated Carbon Hybrid System for Drinking Water Disinfection at Flow Conditions, Denisova, V., Mezule, L., 2019, Chemical Engineering Transactions, 74, pp. 1303-1308

Management of wastewater from landfill of inorganic fiberglass, Tihomirova, K., Denisova, V., Golovko, K., (…), Mezule, L., Juhna, T., 2019, Agronomy Research, 17, pp. 1216-1226

2018

Quality-focused data delivery in wireless sensor network for drinking water distribution system, Dejus, S., Zabasta, A., Bruzgiene, R., Narbutaite, L., Kunicina, N., 2018, 2018 IEEE 6th Workshop on Advances in Information, Electronic and Electrical Engineering, AIEEE 2018 – Proceedings, 8592151

Digestate management practices in Latvia from nitrogen perspective, Open Access, Kalnina, I., Rugele, K., Rubulis, J., 2018, Energy Procedia, 147, pp. 368-373

Study of potential PCR inhibitors in drinking water for Escherichia coli identification, Dalecka, B., Mezule, L., 2018, Agronomy Research, 16(Special Issue 2), pp. 1351-1359

Extended use of sphagnum peat as a biosorbent for zn(II): Repetitious sorption-desorption process, Denisova, V., Tihomirova, K., Mezule, L., 2018, Agronomy Research, 16(4), pp. 1622-1629

Removal of phenols-like substances in pharmaceutical wastewater with fungal bioreactors by adding Trametes versicolor, Bernats, M., Juhna, T., 2018, Water Science and Technology, 78(4), pp. 743-750

Detection of drinking water contamination event with Mahalanobis distance method, using on-line monitoring sensors and manual measurement data, Open Access, Dejus, S., Nescerecka, A., Kurcalts, G., Juhna, T., 2018, Water Science and Technology: Water Supply, 18(6), pp. 2133-2141

2017

Adjustment of yeast growth media for the fermentation of lignocellulosic sugars, Mezule, L., Dalecka, B., 2017, Chemical Engineering Transactions, 57, pp. 25-30

Alcohol recovery from fermentation broth with gas stripping: System experimental and optimisation, Strods, M., Mezule, L., 2017, Agronomy Research, 15(3), pp. 897-904

Biosorption of Zn(II) by sphagnum peat, Denisova, V., Tihomirova, K., Mezule, L., 2017, Chemical Engineering Transactions, 57, pp. 385-390

Hydrolysed biomass waste as a potential biosorbent of zinc from water, Tihomirova, K., Denisova, V., Jaudzema, L., Mezule, L., 2017, Agronomy Research, 15(3), pp. 905-914

Approbation of microbially available phosphorus (MAP) determination method by flow cytometry, Open Access, Frolova, M., Zemītis, J., Tihomirova, K., (…), Gruškeviča, K., Juhna, T., 2017, Vide. Tehnologija. Resursi – Environment, Technology, Resources, 1, pp. 89-92

Alkaline activated material as the adsorbent for uptake of high concentration of zinc from wastewater, Gruskevica, K., Bumanis, G., Tihomirova, K., Bajare, D., Juhna, T., 2017, Key Engineering Materials, 721 KEM, pp. 123-127

Electrochemical drinking water disinfection with Tio2-X ceramic electrodes at flow conditions, Denisova, V., Mezule, L., Juhna, T., Ozolins, J., 2017, Key Engineering, Materials, 721 KEM, pp. 133-137

2016

Influence of mechanical pre–treatment on fermentable sugar production from lignocellulosic biomass, Mezule, L., Strods, M., Dalecka, B., 2016, Agronomy Research, 14(4), pp. 1427-1434

L. Mezule, T. Juhna (2016). Effect of Labile Organic Carbon on Growth of Indigenous Escherichia coli in Drinking Water Biofilm. Chemical Engineering Transaction, 49, 619- 624.

Application of conventional HPLC RI technique for sugar analysis in hydrolysed hay, Tihomirova, K., Dalecka, B., Mezule, L., 2016, Agronomy Research, 14(5), pp. 1713-1719

2015

Tihomirova K., Gruškeviča K., Mežule L., Juhna T. (2015) Application of organic matter fractionation technique for evaluation of coagulation-biofiltration process at a full scale WTP. Civil, Structural and Environmental Engineering conference – ACSEE2015, 10-11 October Zurich, Switzerland, Conference Proceedings, ISBN: 978-1-63248-065-1.

Mežule, L., Deņisova, V., Briedis, A., Reimanis, M., Ozoliņš, J., Juhna, T. Disinfection Effect of Electrochemically Generated Chlorine on Surface Associated Escherichia Coli in a Drinking Water System. Desalination and Water Treatment, 2015, Vol.53, iss.13, 3704.-3710.lpp. ISSN 1944-3994. e-ISSN 1944-3986. Pieejams: doi:10.1080/19443994.2013.873742

Ruģele, K., Būmanis, Ģ., Mežule, L., Juhna, T., Bajāre, D. Application of Industrial Wastes in Renewable Energy Production. Agronomy Research, 2015, Vol.13, No.2, 526.-532.lpp. ISSN 1406-894X.

Būmanis, Ģ., Ruģele, K., Bajāre, D. The Effect of Alkaline Material Particle Size on Adjustment Ability of Buffer Capacity. Materials Science = Medziagotyra, 2015, Vol.21, No.3, 405.-409.lpp. ISSN 1392-1320. Pieejams: doi:10.5755/j01.ms.21.3.7325

Rugele, K., Skripsts, E., Mezule, L., Pitk, P., Bajare, D., Juhna, T. Use of alkali-activated aluminosilicatematerialto enhancebiogas production from acidic whey (2015) Open Biotechnology Journal, 9 (1), pp. 54-60.

Mezule, L., Dalecka, B., Juhna, T. Fermentable sugar production from lignocellulosic waste (2015) Chemical Engineering Transactions, 43, pp. 619-624.

Bernats, M., Juhna, T. Factors governing degradation of phenol in pharmaceutical wastewater by white-rot fungi: A batch study (2015) Open Biotechnology Journal, 9 (1), pp. 93-99.

Dalecka, B., Strods, M., Mezule, L. Production of fermentation feedstock from lignocellulosic biomass: Applications of membrane separation (2015) Agronomy Research, 13 (2), pp. 287-293.

2014

Zabašta, A., Juhna, T., Tihomirova, K., Rubulis, J., Ribickis, L. Latvian Practices for Protecting Water and Wastewater Infrastructure. No: Securing Water and Wastewater Systems. Vol.2. S.Hakim, R.Clark red. New York; Dordrecht; London: Springer International Publishing, 2014. 315.-342.lpp. ISBN 9783319010915.

Neščerecka, A., Rubulis, J., Vital, M., Juhna, T., Hammes, F. Biological Instability in a Chlorinated Drinking Water Distribution Network. PloS ONE, 2014, Vol.9, No.5, e96354.-e96354.lpp. ISSN 1932-6203. Pieejams: doi:10.1371/journal.pone.0096354

Oliveira, C., Gruškeviča, K., Juhna, T., Tihomirova, K., Alves, A., Madeira, L. Removal of Paraquat Pesticide with Fenton Reaction in a Pilot Scale Water System. Drinking Water Engineering and Science, 2014, Vol.7, No.1, 11.-21.lpp. ISSN 1996-9457. e-ISSN 1996-9465.

Mežule, L., Deņisova, V., Reimanis, M., Ozoliņš, J., Juhna, T. Comparing Electrochemical Disinfection with Chlorination for Inactivation of Bacterial Spores in Drinking Water. Water Science and Technology: Water Supply, 2014, Vol.14, No.1, 158.-164.lpp. ISSN 1606-9749. Pieejams: doi:10.2166/ws.2013.182

Ruģele, K., Būmanis, Ģ., Eriņa, L., Erdmane, D. Composite Material for Effective Cheese Whey Anaerobic Digestion. Key Engineering Materials, 2014, Vol.604, 236.-239.lpp. ISSN 1662-9795. Pieejams: doi:10.4028/www.scientific.net/KEM.604.236

Ruģele, K., Būmanis, Ģ., Bajāre, D., Lakevičs, V., Rubulis, J. Alkaline Activated Material for pH Control in Biotechnologies. Key Engineering Materials, 2014, Vol.604, 223.-226.lpp. ISSN 1662-9795. Pieejams: doi:10.4028/www.scientific.net/KEM.604.223

Mezule, L., Larsson, S., Juhna, T. Application of DVC-FISH method in tracking Escherichia coli in drinking water distribution networks (2014) Drinking Water Engineering and Science, 6 (1), pp. 25-31.

Grube, M., Dimanta, I., Gavare, M., Strazdina, I., Liepins, J., Juhna, T., Kalnenieks, U. Hydrogen-producing Escherichia coli strains overexpressing lactose permease: FT-IR analysis of the lactose- nduced stress (2014) Biotechnology and Applied Biochemistry, 61 (2), pp. 111-117.

2013

Gosselin, F., Madeira, L., Juhna, T., Block, J. Drinking Water and Biofilm Disinfection by Fenton-Like Reaction. Water Research, 2013, Vol.47, Iss.15, 5631.-5638.lpp. ISSN 0043-1354. Pieejams: doi:10.1016/j.watres.2013.06.036

Ruģele, K., Mežule, L., Daļecka, B., Larsona, S., Vanags, J., Rubulis, J. Application of Fluorescent in situ Hybridisation for Monitoring Methanogenic Archaea in Acid Whey Anaerobic Digestion. Agronomy Research, 2013, Vol.11, No.2, 373.-380.lpp. ISSN 1406-894X.

Grube, M., Gavare, M., Nescerecka, A., Tihomirova, K., Mezule, L., Juhna, T. FT-IR spectroscopic analysis for studying Clostridium cell response to conversion of enzymatically hydrolyzed hay (2013) Journal of Molecular Structure, 1044, pp. 201-205.

Rugele, K., Berza, I., Larsson, S., Dišlers, A., Vanags, J. The influence of temperature and carbon source on expression of recombinant HBcAg (2013) IFMBE Proceedings, 38 IFMBE, pp. 107-109.

SPATIAL AND REGIONAL DEVELOPMENT RESEARCH CENTER

2015

Kaļinka, M., Zvirgzds, J., Dobelis, D., Lazdāns, E., Reiniks, M. The Near Real Time Ionospheric Model of Latvia. IOP Conference Series: Materials Science and Engineering, 2015, Vol.96, Iss.1, 012042.-012042.lpp. ISSN 1757-8981. e-ISSN 1757-899X. Pieejams: doi:10.1088/1757-899X/96/1/012042

Balodis, J., Silabriedis, G., Haritonova, D., Kaļinka, M., Janpaule, I., Morozova, K., Jumare, I., Mitrofanovs, I., Zvirgzds, J., Kaminskis, J., Liepiņš, I. Development of the One Centimeter Accuracy Geoid Model of Latvia for GNSS Measurements. IOP Conference Series: Materials Science and Engineering, 2015, Vol.96, Iss.1, 012037.-012037.lpp. ISSN 1757-8981. e-ISSN 1757-899X. Pieejams: doi:10.1088/1757-899X/96/1/012037

2014

Zagars, J., Zvirgzds, J., Kaminskis, J. Globālās navigācijas satelītu sistēmas. Ventspils: Ventspils University, 2014. pp. 231. ISBN 978-9984-648-53-8.

Soško, O., Trufanovs, A., Merkurjevs, J., Zvirgzds, J. Integrated Intelligent Platform for Monitoring Natural-Technological Systems: Methodology and Applications. Cities and Development. Riga Technical University Research, 2014, No.2, 24.-26.lpp.

Merkurjeva, G., Zelentsov, V., Lektauers, A., Matiash, V., Mochalov, V., Potrysaev, S., Kozhanov, A., Petuhova, J., Zvirgzds, J., Trufanovs, A., Strautiņa, E., Boļšakovs, V. Demonstration Cases and Real-time Experiments. Chapter 4. No: Information Technologies and Support Tools for Space-Ground Monitoring of Natural and Technological Systems. J.Merkurjevs, G.Merkurjeva, B.Sokolov, V.Zelentsov red. Rīga: RTU, 2014. pp. 77-106. ISBN 978-9934-10-606-4. e-ISBN 978-9934-10-634-7.

2013

Zvirgzds, J., Dobelis, D. Ionospheric Activity Influence on Real-Time Measurements. No: Baltic Applied Astroinformatics and Space Data Processing: 2nd international Scientific Conference of Ventspils International Radio Astronomy Centre: Conference Proceedings, Latvia, Ventspils, May 15-16, 2013. Ventspils: Ventspils University, 2013, pp. 40-42. ISBN 978-9984-648-31-6.