Achieving nitritation and anammox enrichment in a single moving-bed biofilm reactor treating reject waterZekker, Ivar; Rikmann, Ergo; Tenno, Taavo; Saluste, Anne; Tomingas, Martin; Menert, Anne; Loorits, Liis; Lemmiksoo, Vallo; Tenno, ToomasEnvironmental technology2012 / p. 703-710 : ill https://pubmed.ncbi.nlm.nih.gov/22629646/

Achieving nitritation and anammox enrichment in single moving bed biofilm reactor treating reject waterZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Saluste, Anne; Lemmiksoo, Vallo; Menert, Anne; Loorits, Liis; Tenno, TaavoAGRO 2011 : 8th IWA International Symposium on Waste Management Problems in Agroindustries : Cesme, Izmir, Turkey, 22-24 June 2011 : proceedings. 22011 / p. 827-828 https://www.tandfonline.com/doi/full/10.1080/09593330.2011.588962

Ameliorating effect of nitrate on nitrite inhibition for denitrifying P-accumulating organismsZekker, Ivar; Mandel, Anni; Rikmann, Ergo; Jaagura, Madis; Salmar, Siim; Ghangrekar, Makarand Madhao; Tenno, TaavoScience of the total environment2021 / art. 149133, 10 p. : ill https://doi.org/10.1016/j.scitotenv.2021.149133 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Anaerobic ammonium oxidation process performance with optimum bicarbonate concentrationZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Menert, Anne; Tomingas, Martin; Kroon, K.; Vabamäe, Priit; Tenno, TaavoAgricultural research : abstract book from the 4th Annual International Symposium on Agricultural Research : 18-21 July 2011, Athens, Greece2011 / p. 69-71 : ill

Anaeroobse ammoniumlämmastiku oksüdatsiooni protsessi kiirendamine NH2OH ja N2H4-gaZekker, Ivar; Kroon, K.; Rikmann, Ergo; Tenno, Toomas; Menert, Anne; Tenno, TaavoXXXII Eesti Keemiapäevad : teaduskonverentsi teesid2011 / lk. 114 https://www.ester.ee/record=b2679915*est

Anammox bacteria enrichment and phylogenic analysis in moving bed biofilm reactorsZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Vabamäe, Priit; Tomingas, Martin; Menert, Anne; Loorits, Liis; Tenno, TaavoEnvironmental engineering science2012 / p. 946-950 https://www.liebertpub.com/doi/abs/10.1089/ees.2011.0146?journalCode=ees

Anammox enrichment from reject water on blank biofilm carriers and carriers containing nitrifying biomass : operation of two moving bed biofilm reactors (MBBR)Zekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Lemmiksoo, Vallo; Menert, Anne; Loorits, Liis; Vabamäe, Priit; Tomingas, Martin; Tenno, TaavoBiodegradation2012 / p. 547-560 : ill https://www.researchgate.net/publication/221811952_Anammox_enrichment_from_reject_water_on_blank_biofilm_carriers_and_carriers_containing_nitrifying_biomass_Operation_of_two_moving_bed_biofilm_reactors_MBBR

Biological treatment of anaerobic digester supernatant by anaerobic ammonium oxidation method in UASB systemTomingas, Martin; Zekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Menert, Anne; Kroon, Kristel; Tenno, TaavoSustainChem2011 : International Conference on Materials and Technologies for Green Chemistry jointly with Workshop of COST Action CM0903 (UBIOCHEM-II) : September 5-9, 2011, Tallinn, Estonia : abstract book and program2011 / p. 140

Bioloogiliselt raskesti lagunevate ainete kõrvaldamine reoveest füüsikalis-keemiliste ja bioloogiliste meetoditega vesikeskkonna saastekoormuse vähendamiseks (CHEMBIO)Trapido, Marina; Tenno, TaavoKeskkonnakaitse ja -tehnoloogia teadus- ja arendustegevuse programmi teaberaamat 2010-20152015 / lk. 66-70 : ill

Bio-recalcitrant pollutants removal from wastewater with combination of the Fenton treatment and biological oxidationTrapido, Marina; Tenno, Taavo; Goi, Anna; Dulova, Niina; Kattel, Eneliis; Klauson, Deniss; Klein, Kati; Tenno, Toomas; Viisimaa, MarikaJournal of water process engineering2017 / p. 277-282 : ill https://doi.org/10.1016/j.jwpe.2017.02.007

Bio-recalcitrant pollutants removal from wastewater with combination of the Fenton treatment and biooxidationTrapido, Marina; Tenno, Taavo; Goi, Anna; Dulova, Niina; Kattel, Eneliis; Kivi, Arthur; Klauson, Deniss; Klein, Kati; Viisimaa, MarikaEuropean Conference on Environmental Applications of Advanced Oxidation Processes : 21-24 October 2015, Athens, Greece : conference program and book of abstracts2015 / p. 111 : ill

Bio-recalcitrant pollutants removal from wastewater with combination of the Fenton treatment and biooxidationTrapido, Marina; Tenno, Taavo; Goi, Anna; Dulova, Niina; Kattel, Eneliis; Kivi, Arthur; Klauson, Deniss; Klein, Kati; Viisimaa, MarikaEuropean Conference on Environmental Applications of Advanced Oxidation Processes : 21-24 October 2015, Athens, Greece : book of proceedings2015 / [3] p. : ill

Bio-recalcitrant pollutants removal from wastewater with combination of the Fenton treatment and biooxidationTrapido, Marina; Tenno, Taavo; Goi, Anna; Dulova, Niina; Klauson, Deniss; Kattel, Eneliis; Viisimaa, Marika; Kivi, Arthur; Klein, Kati20th International Scientific Conference EcoBalt 2016 : Tartu, Estonia, October 9-12 : book of abstracts2016 / p. 24 : ill http://akki.ut.ee/wp-content/uploads/2015/01/Abstracts_Book_EcoBalt_2016.pdf

Combined biological-chemical treatment of landfill leachate applying continuous sludge reuse in Fenton processKlein, Kati; Kivi, Arthur; Trapido, Marina; Tenno, TaavoEuropean Conference on Environmental Applications of Advanced Oxidation Processes : 21-24 October 2015, Athens, Greece : book of proceedings2015 / [3] p. : ill

Combined biological-chemical treatment of landfill leachate applying continuous sludge reuse in Fenton processKlein, Kati; Kivi, Arthur; Trapido, Marina; Tenno, TaavoEuropean Conference on Environmental Applications of Advanced Oxidation Processes : 21-24 October 2015, Athens, Greece : conference program and book of abstracts2015 / p. 191 : ill

Combined methods for the treatment of a typical hardwood soaking basin wastewater from plywood industryKlauson, Deniss; Klein, Kati; Kivi, Arthur; Kattel, Eneliis; Viisimaa, Marika; Dulova, Niina; Velling, Siiri; Trapido, Marina; Tenno, TaavoInternational journal of environmental science and technology2015 / p. 3575-3586 : ill http://dx.doi.org/10.1007/s13762-015-0777-2

Combined processes for the treatment of a typical hardwood soaking basin wastewater from plywood industryKlauson, Deniss; Viisimaa, Marika; Kattel, Eneliis; Trapido, Marina; Kivi, Arthur; Klein, Kati; Velling, S.; Tenno, TaavoAbstracts book : International Congress on Water, Waste and Energy Management : 16th-18th July 2014, Porto, Portugal2014 / p. 33

Combined processes for wastewater purification : treatment of a typical landfill leachate with a combination of chemical and biological oxidation processesKlauson, Deniss; Kivi, Arthur; Kattel, Eneliis; Klein, Kati; Viisimaa, Marika; Bolobajev, Juri; Velling, Siiri; Goi, Anna; Tenno, Taavo; Trapido, MarinaJournal of chemical technology and biotechnology2015 / p. 1527-1536 : ill http://dx.doi.org/10.1002/jctb.4484

Combined treatment of pyrogenic wastewater from oil shale retortingKlein, Kati; Kattel, Eneliis; Goi, Anna; Kivi, Arthur; Dulova, Niina; Saluste, Alar; Zekker, Ivar; Trapido, Marina; Tenno, TaavoOil shale2017 / p. 82-96 : ill https://doi.org/10.3176/oil.2017.1.06

Effect of bicarbonate concentration on Anaerobic ammonium oxidation for efficient autotrophic nitrogen removalZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Menert, Anne; Lemmiksoo, Vallo; Kolberg, K.; Tenno, TaavoIWA Specialist Conference Water and Industry : Valladolid, Spain, 1-4 May 2011 : final program2011 / p. 16

Enhanced efficiency of nitritating-anammox sequencing batch reactor achieved at low decrease rates of oxidation-reduction potentialZekker, Ivar; Kivirüüt, Aimar; Rikmann, Ergo; Mandel, Anni; Jaagura, Madis; Tenno, Toomas; Artemchuk, Oleg; Rubin, Sergio Dc; Tenno, TaavoEnvironmental Engineering Science2019 / p. 350-360 https://doi.org/10.1089/ees.2018.0225 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Enhancement of anoxic phosphorus uptake of denitrifying phosphorus removal process by biomass adaptionMandel, Anni; Zekker, Ivar; Jaagura, Madis; Tenno, TaavoInternational journal of environmental science and technology2019 / p. 5965–5978 : ill https://doi.org/10.1007/s13762-018-02194-2 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Factors affecting SVI in small scale WWTPsKõrgmaa, Vallo; Kriipsalu, Mait; Tenno, Taavo; Lember, Erki; Kuusik, Argo; Lemmiksoo, Vallo; Pachel, Karin; Iital, ArvoWater science & technology Water science and technology2019 / p. 1766–1776 https://doi.org/10.2166/wst.2019.177 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Hazardous waste landfill leachate treatment by combined chemical and biological techniquesKattel, Eneliis; Kivi, Arthur; Klein, Kati; Tenno, Taavo; Dulova, Niina; Trapido, MarinaDesalination and water treatment2016 / p. 13236-13245 : ill http://doi.org/10.1080/19443994.2015.1057539

Mainstream-sidestream wastewater switching promotes anammox nitrogen removal rate in organic-rich, low-temperature streamsZekker, Ivar; Raudkivi, Markus; Artemchuk, Oleg; Rikmann, Ergo; Priks, Hans; Jaagura, Madis; Tenno, TaavoEnvironmental technology2021 / 10 p. : ill https://doi.org/10.1080/09593330.2020.1721566 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Modification of nitrifying biofilm into nitritating one by combination of increased free ammonia concentrations, lowered HRT and dissolved oxygen concentrationZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Menert, Anne; Lemmiksoo, Vallo; Saluste, Anne; Tenno, Taavo; Tomingas, MartinJournal of environmental sciences2011 / p. 1113-1121 : ill

A novel method for rapid assessment of the performance and complexity of small wastewater treatment plantsKõrgmaa, Vallo; Tenno, Taavo; Pachel, Karin; Iital, ArvoProceedings of the Estonian Academy of Sciences2019 / p. 32-42 : ill https://doi.org/10.3176/proc.2019.1.03 http://www.kirj.ee/public/proceedings_pdf/2019/issue_1/proc-2019-1-32-42.pdf Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

A pilot study of three-stage biological-chemical treatment of landfill leachate applying continuous ferric sludge reuse in Fenton-like processKlein, Kati; Kivi, Arthur; Dulova, Niina; Zekker, Ivar; Mölder, Erik; Tenno, Toomas; Trapido, Marina; Tenno, TaavoClean technologies and environmental policy2017 / p. 541-551 : ill https://doi.org/10.1007/s10098-016-1245-5

Removal of hazardous substances in municipal wastewater treatment plantsKõrgmaa, Vallo; Laht, Mailis; Rebane, Riin; Lember, Erki; Pachel, Karin; Kriipsalu, Mait; Tenno, Taavo; Iital, ArvoWater Science & Technology Water science and technology2020 / p. 2011−2022 https://doi.org/10.2166/wst.2020.264 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Reoveepuhastuse analüüsimeetodeid : lisa 4Kõrgmaa, Vallo; Lember, Erki; Kivirüüt, Aimar; Tenno, TaavoReoveepuhastuse käsiraamat2023 / lk. 739-749 https://lifecleanest.ee/sites/cleanest/files/2023-10/

Research of specific nitrite oxidation rate on high surfaced biofilms carriers with free ammonia and temperature variationsZekker, Ivar; Tenno, Toomas; Tenno, Taavo; Lemmiksoo, Vallo; Rikmann, Ergo; Menert, Anne; Kolberg, K.3rd EuCheMS Chemistry Congress : Chemistry - the Creative Force : 29.08.-02.09.2010, Nürnberg, Germany : [abstracts]2010 / [1] p https://www.etis.ee/Portal/Publications/Display/e183db0e-18fc-43e3-9bab-bdc76c638e92

Reuse of ferric sludge as an iron source for the Fenton-based process in wastewater treatmentBolobajev, Juri; Kattel, Eneliis; Viisimaa, Marika; Goi, Anna; Trapido, Marina; Tenno, Taavo; Dulova, NiinaChemical engineering journal2014 / p. 8-13 : ill

Specific nitrite oxidation rate on high surfaced biofilm carriers dependent on free ammonia and temperatureZekker, Ivar; Tenno, Toomas; Tenno, Taavo; Lemmiksoo, Vallo; Rikmann, Ergo; Menert, Anne; Kolberg, K.; Tomingas, Martin; Kroon, K.; Vabamäe, Priit2nd Workshop on Bacterial and Fungal Biofilms : Ghent University Center for Sociomicrobiology, 22 September 20112011 https://www.etis.ee/Portal/Publications/Display/33df8771-46e4-46c6-a2da-dbd4efb91a17

Sulfate-reducing anaerobic ammonium oxidation as a potential treatment method for high nitrogen-content wastewaterRikmann, Ergo; Zekker, Ivar; Tomingas, Martin; Tenno, Taavo; Menert, Anne; Loorits, Liis; Tenno, ToomasBiodegradation2012 / p. 509-524 : ill https://www.researchgate.net/publication/348845233_Sulfate-reducing_anaerobic_ammonium_oxidation_as_a_potential_treatment_method_for_high_nitrogen-content_wastewater

Sulfate-reducing anaerobic ammonium oxidation as a potential treatment method for high nitrogen-content wastewaterRikmann, Ergo; Zekker, Ivar; Tomingas, Martin; Tenno, Toomas; Menert, Anne; Loorits, Liis; Tenno, TaavoAGRO 2011 : 8th IWA International Symposium on Waste Management Problems in Agroindustries : Cesme, Izmir, Turkey, 22-24 June 2011 : proceedings. 22011 / p. 755-762

Treatment of high-strength wastewater by Fe2+-activated persulphate and hydrogen peroxideKattel, Eneliis; Dulova, Niina; Viisimaa, Marika; Tenno, Taavo; Trapido, MarinaEnvironmental technology2016 / p. 352-359 : ill http://doi.org/10.1080/09593330.2015.1069899

Unconventional oil contaminated industrial effluent treatment by catalyzed hydrogen peroxide and sodium persulfateDulova, Niina; Kattel, Eneliis; Viisimaa, Marika; Goi, Anna; Klauson, Deniss; Trapido, Marina; Saluste, Alar; Tenno, TaavoProceedings of the 7th International Conference on Environmental Science and Technology, June 9-13, 2014, Houston, Texas, USA2014 / p. 262-268