(since 1999)

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. Publication

Zabašta, A., Juhna, T., Tihomirova, K., Rubulis, J., Ribickis, L. (2014) Latvian Practices for Protecting Water and Wastewater Infrastructure. In: Securing Water and Wastewater Systems. Vol.2. S.Hakim, R.Clark ed. New York; Dordrecht; London: Springer International Publishing, pp.315-342. ISBN 9783319010915.

Mežule, L., Deņisova, V., Reimanis, M., Ozoliņš, J., Juhna, T. (2014) Comparing Electrochemical Disinfection with Chlorination for Inactivation of Bacterial Spores in Drinking Water. Water science and Technology: Water Supply, 14(1), 158-164. ISSN 1606-9749. Available from: doi:10.2166/ws.2013.182

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

Oliveira, C., Gruškeviča, K., Juhna, T., Tihomirova, K., Alves, A., Madeira, L. (2014) Removal of Paraquat Pesticide with Fenton Reaction in a Pilot Scale Water System.Drinking Water Engineering and Science, Vol.7, No.1, pp.11-21. ISSN 1996-9457. e-ISSN 1996-9465. Available from: doi:10.5194/dwes-7-11-2014

Denisova, V., Mezule, L., Juhna, T., (2014) The effect of chlorination on Escherichia Coli viability in drinking water. Mater. Sci. Appl. Chem. 30, 45.

Zajacs, A., Zemitis, J., Tihomirova, K., Borodinecs, A., (2014) Concept of smart city: first experience from city of Riga. J. Sustain. Archit. Civ. Eng. 7, 54–59.

Ruģele, K., Būmanis, Ģ., Bajare, D., Lakevičs, V., Rubulis, J.,( 2014) Alkaline activated material for pH control in biotechnologies. Key Eng. Mater. 604, 223–226.

Tihomirova, K., Borodinecs, A., (2014) Smart city: first steps in concept and strategies. RTU Research Directory 2, Cities and Development, 28-30.

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

Grūbe, M., Dimanta, I., Gavare, M., Strazdiņa, I., Liepiņš, J., Juhna, T., Kalnenieks, U. (2013)  Hydrogen-Producing Escherichia Coli Strains, Overexpressing Lactose Permease: FT-IR Analysis of the Lactose-Induced Stress. Biotechnology and Applied Biochemistry, Vol.61, Iss.2, pp.111-117. ISSN 1470-8744. Available from: doi:10.1002/bab.1128

Grūbe, M., Gavare, M., Neščerecka, A., Tihomirova, K., Mežule, L., Juhna, T. (2013) FT-IR Spectroscopic Analysis for Studying Clostridium Cell Response to Conversion of Enzymatically Hydrolyzed Hay. Journal of Molecular Structure, Vol.1044, pp.201-205. ISSN 0022-2860. Available from: doi:10.1016/j.molstruc.2012.12.016

Mežule, L., Larsona, S., Juhna, T. (2013) Application of DVC-FISH Method in Tracking Escherichia Coli in Drinking Water Distribution Networks. Drinking Water Engineering and Science, Vol.6, No.1, pp.25-31. ISSN 1996-9457. e-ISSN 1996-9465. Available from: doi:10.5194/dwes-6-25-2013

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

Dejus, S., Rubulis, J. (2013) Challenges of Water Quality Modelling in Drinking Water Supply Systems. In: IWA 5th European Young and Senior Water Professionals Conference: Conference Proceedings: IWA 5th Eastern European Young and Senior Water Professionals Conference, Ukraine, Kiev. Kiev: 2013, pp.246-252.

Ruģele, K., Gavare, M., Grūbe, M., Tihomirova, K., Skripsts, Ē., Larsona, S., Rubulis, J. (2013) Characterization of Lactose Consumption during the Biogas Production from Acid Whey by FT-IR Spectroscopy. In: International Conference on Environmental, Biological, Ecological Sciences and Engineering (ICEBESE 2013), Netherlands, Amsterdam. Amsterdam: World Academy of Science, Engineering and Technology, 2013, pp.253-258. ISSN 1307-6892.

Ruģele, K., Skripsts, Ē., Juhna, T., Larsona, S. (2013) Bioaugmentation to Improve Biogas Yield in Cheese Whey Anaerobic Digestion. In: 13th World Congress on Anaerobic Digestion : Proceedings, Spain, Santiago de Compostella. Santiago de Compostella. Santiago de Compostella: 2013, pp.1-4.

Mežule L., Deņisova V, Briedis A., Reimanis M., Ozoliņš J., Juhna T. (2013) Disinfection effect of electrochemically generated chlorine on surface associated Escherichia coli in a drinking water system. Desalination and Water Treatment, In Press.
Reimanis M., Mežule L., Ozoliņš J., Malers J., Juhna T. (2013) Drinking water disinfection with electrolysis. Latvian Journal of Chemistry, 51(4), 296-304.

Mežule L., Juhna T. (2013) Biotechnology for converting wastes to energy. RTU Research: Energy and Environment, 01, 69-71.

Mežule, L., Tihomirova, K., Neščerecka, A., Juhna, T. (2012) Biobutanol Production from Agricultural Waste: A Simple Approach for Pre-Treatment and Hydrolysis. Latvian Journal of Chemistry, 51, pp.407-414. Available from: doi:10.2478/v10161-012-0028-5

Nazarovs, S., Dejus, S., Juhna, T. (2012) Modelling Water Quality in Drinking Water Distribution Networks from Real-Time Direction Data. Drinking Water Engineering and Science Discussions, Vol.5, Iss.1, pp.31-46. ISSN 1996-9473. Available from: doi:10.5194/dwesd-5-31-2012

Neilands, K., Bernāts, M., Rubulis, J. (2012) Accumulation and Modeling of Particles in Drinking Water Pipe Fittings. Drinking Water Engineering and Science, Vol.5, pp.47.-57. ISSN 19969457. Available from: doi:10.5194/dwes-5-47-2012

Neilands K., Sarenkovs I., Rubulis J. (2012) Particle Deposition in Water Distribution Networks Comparing Fittings and Straight Sections of a Pipe // IWA Eastern European Young and Senior Water Professionals Conference: IWA Conference Proceedings, Russia, Saint Petersburg. - pp 1-9.

Tihomirova, K., Dejus, S., Mežule, L., Juhna, T. (2012) Modelling of the Biodegradation Processes in the Biofilters. In: Publications of the IWA 4th Eastern European Young and Senior Water Professionals Conference, Russia, Saint Petersburg, 4-5 October. Saint Petersburg: 2012, pp.446-454.

Mežule, L.  (2012) Significance of Nonculturable Escherichia Coli in Drinking Water: Experimental and Pilot Studies in Large Drinking Water Systems. Saarbrücken: LAP Lambert Academic Publishing. 180 p. ISBN 9783848499731.

Tihomirova K., Mežule L., Juhna T. (2012) Application of Flow Cytometry for Characterization of Biomass During ABE Fermentation Process. 20th European Biomass Conference and Exhibition, ETA-Florence Renewable Energies, Milan, Italy. ISBN 978-88-89407-54-7.

Juhna T., Birzniece D., Rubulis J. (2007) Effect of phosphorus on survival of Escherichia coli in drinking water biofilm. Appl. Envirnment. Microb. 73,11, 3755-3758.

Rubulis J. and Juhna T., (2007). Evaluating the potential of biofilm control in water supply systems by removal of phosphorus from drinking water // Water Science and Technology: Water Supply, 55(8-9), 211-217

Wilks, S. A., Azevedo, N., Juhna T., Lehtola, M. J., and C. W. Keevil. (2006). “Tools for the rapid detection of pathogens in mains drinking water supplies”. In Water Contamination Emergencies: Enhancing our Response (Ed. Thompson, K. C. and J. Gray). London; IWO, ISBN: 0 845404 658 5.

Rubulis J. and Juhna T., (2006). Effect of phosphorus on biofilm growth in a completely mixed biofilm reactor. Biofilms 2, 14-15.

Lehtola M, Juhna T, Miettinen I, Vartiainen T un Martikainen P. (2004) Formation of biofilms in drinking water distribution networks; a case study in two cities in Finland and Latvia. Journ. Industrial Microbiology and Biotechnology, 31, 489-494.

Juhna T un Rubulis. J. (2004) Problems of  DOC removal during biological treatment of surface water with  a high amount of humic substances Journ. Water Sci. Technol.: Wat. Supply 4,4, 184-187(SCI)

Juhna, T., M. Klavins un L. Eglite (2003). Sorption of humic substances on aquifer material at artificial recharge of groundwater, Chemosphere, 51, 9, 861-868.

Juhna, T., B. Gulbe un M. Kļaviņš (2002) Speciation of iron in groundwater from areas of humic waters by an ion-exchange method. Vatten, 51, 3, 159-168.

Rubulis J., L. Šnīdere and V. Briedis (2001) Problems with drinking water metering in apartment buildings and flats in Riga city, Latvia. In: Water Software Systems. B.Coulbeck et.(ed.), Research Studies Press: Water Engineering and Management Series, 1, 349-356
Juhna T. un M. Kļaviņš (2001). Water-quality changes in Latvia and Riga 1980-2000: Possibilities and Problems. Journ. Human Environ. AMBIO 30, 4-5, 306-314.

Tihomirova K., Grube M., Juhna T. Application of FT-IR for characterization of biomass isolated from drinking water. XIII European Conference on the Spectroscopy of Biological Molecules, 2009. augusts – septembris, Italy, Palermo

Tihomirova K., Rubulis J., Juhna T. Changes of NOM Fractions during Conventional Drinking Water Treatment Process in Riga, Latvia. Water Science and Technology. – References Nr. WST-WSTWS-EM08672.

Tihomirova K., Rubulis J., Juhna T. Changes of NOM Fractions during Conventional Drinking Water Treatment Process in Riga, Latvia. LET2008, 5th leading-edge conference and exhibition on water and wastewater technologies, 2008.  jūnijs,  ŠVEICE, Cīrihe.  – Cīrihe: EAWAG, 2008, 120-128. lpp.

Optimization of NOM removal during conventional drinking water by NOM-fractionation and LC-OCD analyses at Daugava WTP in Riga, Latvia. Tihomirova K., Rubulis J., Henning L., Juhna T. NOM research from source to tap, 2008. septembris,  Lielbritānija, Bath, - Bath: Cranfield University, 2008, 575-584. lpp.

Tihomirova K., Rubulis J., Juhna T. Determination of biodegradable dissolved organic carbon in waters: comparison of suspended and attached biomass methods. RTU zinātniskie raksti. 2. sēr., Būvzinātne. - 7. sēj. (2008), 115.-123. lpp.

Tihomirova K., Juhna T. Changes of NOM Fractions during Optimization of Coagulation process on the Drinking Water Treatment Process in Riga, Latvia. NOM research from source to tap, 2008. septembris,  Lielbritānija, Bath, - Bath: Cranfield University, 2008, 575-584. lpp.

Tihomirova K., Rubulis J., Juhna T. Monitoring of NOM fractions in raw water and in the Water Treatment Plant in Riga, Latvia. IWA 1st Eastern European Regional Young Water Professionals Conference, 2009. maijs, Baltkrievija, Minska. – Minska: Белорусский национальный технический университет, 2009 - 323-332. lpp.

Measurement of BDOC kinetic in humic-rich water. Briedis A., Tihomirova K., Rubulis J., Juhna T. IWA 1st Eastern European Regional Young Water Professionals Conference, 2009. maijs, Baltkrievija, Minska. – Minska: Белорусский национальный технический университет, 2009 - 332-338. lpp.

Organic matter isolation from loose deposits in drinking water distribution system. Gruškeviča K., Tihomirova K., Rubulis J., Juhna T. IWA 1st Eastern European Regional Young Water Professionals Conference, 2009. maijs, Baltkrievija, Minska. – Minska: Белорусский национальный технический университет, 2009 - 278-284. lpp.

Influence of water velocity and NOM composition on corrosion of iron pipes. Gruškeviča K., Tihomirova K., Juhna T., Stein W. Osterhus. METEAU materials and related substances in drinking water, 2008.  oktobris,  Portugāle, Lisbona. – Lisbona:  EPAL - Emprasa Portuguesa das Aguas Livres, S.A., 2008 - 24-25. Lpp.

Simulation of Bacterial Regrowth in Water Networks by Modelling of Pseudomonas fluorescens Growth in a lab Biofilm Reactor. Hammes F., Juhna T., Koliškins A., Lukjaņeca I., Nazarovs S., Rubulis J., Tihomirova K., Vital M. Combined International Conference of Computing and Control for the Water Industry CCWI2007 and Sustainable Urban Water Management SUWM2007, 2007. septembris, Lielbritānija, Leicestera, - Taylor and Francis/Balkema, P.O Box 447, Leiden, 2300 AK, Netherlands 229-236. lpp.