• 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
• 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
• 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 https://www.scopus.com/sourceid/21100324365 https://www.scopus.com/record/display.uri?eid=2-s2.0-85014374055&origin=inward&txGid=23205ba5270ffd1886b827c29a2c05d3 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20WATER%20PROCESS%20ENG&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000431407000033
• Deammonification process start-up after enrichment of anammox microorganisms from reject water in a moving-bed biofilm reactorZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Kroon, Kristel; Vabamäe, Priit; Salo, Erik; Tenno, Taavo; Loorits, Liis; Dc Rubin, Sergio S. C.; Vlaeminck, Siegfried E.Environmental Technology (United Kingdom)2013 / p. 3095 - 3101 https://doi.org/10.1080/09593330.2013.803134 https://www.scopus.com/sourceid/21552 https://www.scopus.com/record/display.uri?eid=2-s2.0-84883022377&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1080%2F09593330.2013.803134%29&sessionSearchId=2578bba73f583d2598e5d9854114f0a3 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ENVIRON%20TECHNOL&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000332322200006
• 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 https://www.scopus.com/sourceid/25749 https://www.scopus.com/record/display.uri?eid=2-s2.0-85063083231&origin=resultslist&sort=plf-f&src=s&sid=199ce1b428b9e0b4058818bf89480d7c&sot=b&sdt=b&s=TITLE-ABS-KEY%28%22achieved+at+low+decrease%22%29&sl=41&sessionSearchId=199ce1b428b9e0b4058818bf89480d7c&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ENVIRON%20ENG%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000452611000001
• Inglise-eesti-vene keemia sõnaraamat1998 https://www.ester.ee/record=b1190326*est
• KeemianomenklatuurTuulmets, Ants2000
• Leaching of polycyclic aromatic hydrocarbons (PAHs) and heavy metals from the oil shale processing wastes and from waste-based productsJefimova, Jekaterina2015 https://www.ester.ee/record=b4474360*est
• 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 https://www.sciencedirect.com/science/article/pii/S1001074210605232
• Nitric oxide for anammox recovery in a nitrite-inhibited deammonification systemZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Loorits, Liis; Kroon, Kristel; Fritze, Hannu; Tuomivirta, Tero; Vabamäe, Priit; Raudkivi, Markus; Mandel, Anni; Rubin, Sergio S.C.; Tenno, TaavoEnvironmental Technology (United Kingdom)2015 / p. 2477 - 2487 https://doi.org/10.1080/09593330.2015.1034791
• Nitritating-anammox biomass tolerant to high dissolved oxygen concentration and C/N ratio in treatment of yeast factory wastewaterZekker, Ivar; Rikmann, Ergo; Tenno, Toomas; Seiman, Andrus; Loorits, LiisEnvironmental technology2014 / p. 1565-1576 : ill https://doi.org/10.1080/09593330.2013.874492 https://www.scopus.com/sourceid/21552 https://www.scopus.com/record/display.uri?eid=2-s2.0-84894283296&origin=inward&txGid=383dd1574f3c7a429c443c043e5c7451 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ENVIRON%20TECHNOL&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000331357100015
• 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 https://www.scopus.com/sourceid/130111 https://www.scopus.com/record/display.uri?eid=2-s2.0-84976874672&origin=inward&txGid=f95720ae0c17a0b4b0a3e24fe2215f3a https://jcr.clarivate.com/jcr-jp/journal-profile?journal=CLEAN%20TECHNOL%20ENVIR&year=2017 https://www.webofscience.com/wos/woscc/full-record/WOS:000394319300020
• 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
• 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
• Step-wise temperature decreasing cultivates a biofilm with high nitrogen removal rates at 9°C in short-term anammox biofilm testsZekker, Ivar; Rikmann, Ergo; Mandel, Anni; Kroon, Kristel; Seiman, Andrus; Mihkelson, Jana; Tenno, Taavo; Tenno, ToomasEnvironmental technology2016 / p. 1933 - 1946 https://doi.org/10.1080/09593330.2015.1135995 https://www.scopus.com/sourceid/21552 https://www.scopus.com/record/display.uri?eid=2-s2.0-84958533010&origin=resultslist&sort=plf-f&src=s&sid=36ceddf0345397a3192e81e230848760&sot=b&sdt=b&s=DOI%2810.1080%2F09593330.2015.1135995%29&sl=34&sessionSearchId=36ceddf0345397a3192e81e230848760&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ENVIRON%20TECHNOL&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000375950700009
• Sulfate-dependent anaerobic ammonium oxidation in baker's yeast wastewaterRikmann, Ergo; Menert, Anne; Blonskaja, Viktoria; Kurissoo, Tõnu; Zub, Sergei; Tenno, ToomasBook of abstracts of the 7th International Conference ORBIT 2010 : Organic Resources in the Carbon Economy : 29th June to 3rd July 2010 Heraklion Crete, Greece2010 / p. 204 https://www.sei.org/publications/sulfate-dependent-anaerobic-ammonium-oxidation-bakers-yeast-wastewater/
• 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 https://www.researchgate.net/publication/348845233_Sulfate-reducing_anaerobic_ammonium_oxidation_as_a_potential_treatment_method_for_high_nitrogen-content_wastewater
• Sulfate-reducing anammox for sulfate and nitrogen containing wastewatersRikmann, Ergo; Zekker, Ivar; Tomingas, Martin; Tenno, Toomas; Loorits, Liis; Vabamäe, Priit; Mandel, Anni; Raudkivi, Markus; Daija, Laura; Kroon, Kristel; Tenno, TaavoDesalination and Water Treatment2016 / p. 3132 - 3141 https://doi.org/10.1080/19443994.2014.984339 https://www.scopus.com/sourceid/19700175585 https://www.scopus.com/record/display.uri?eid=2-s2.0-84953838922&origin=resultslist&sort=plf-f&src=s&sid=36ceddf0345397a3192e81e230848760&sot=b&sdt=b&s=DOI%2810.1080%2F19443994.2014.984339%29&sl=34&sessionSearchId=36ceddf0345397a3192e81e230848760&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=DESALIN%20WATER%20TREAT&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000367838000027
• Utilization of oil shale semi-coke - state of art and prospectsKuusik, Rein, keemik; Kana, Aadu; Karp, Kadri; Martins, Ants; Pihu, Tõnu; Tenno, Toomas; Trikkel, AndresInternational Oil Shale Symposium : Tallinn, Estonia, June 8-11, 2009 : future energy solutions : come and share your vision!2009 / p. 43-44 http://www.ester.ee/record=b4775098*est
• XVII Eesti keemiapäevad : [Tartu : apr.]Kann, Jüri; Tenno, ToomasEesti TA Toimetised. Keemia1996 / 3/4, lk. 87-90