Aktiivsöe valmistamise võimalused biomudastPikkov, Lui; Kallas, Juha; Rikmann, ErgoXXIII Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid1997 / lk. 107

An investigation and microcalorimetric monitoring of anaerobic treatment of concentrated waste in the cheese industryBlonskaja, Viktoria; Mölder, Heino; Menert, Anne; Rikmann, Ergo; Vilu, RaivoEuropean water management2001 / 1, p. 59-64 : ill

An investigation and microcalorimetric monitoring of anaerobic treatment of concentrated waste in the cheese industryBlonskaja, Viktoria; Mölder, Heino; Menert, Anne; Rikmann, Ergo; Vilu, RaivoCopenhagen Waste and Water Conference '99 including EcoProcura Copenhagen '99 : The 2nd International Conference on Integrated Sustainable Waste and Water Management and Green Procurement : June 1-3, 1999 : conference proceedings1999 / [3] p

Anaerobic mesophilic digestion of sludge with extra-thermophilic and high pH pre-treatmentMenert, Anne; Rikmann, Ergo; Michelis, Merje; Vaalu, Tarmo; Blonskaja, Viktoria; Vilu, Raivo4th Conference on the Establishment of Cooperation between Companies and Institutions in the Baltic Sea Region (Kalmar Eco-Tech'03) : 25-27 November, 2003, Kalmar, Sweden : book of abstracts2003 / p. 115

Anaerobic mesophilic digestion of sludge with extra-thermophilic and high pH pre-treatmentMenert, Anne; Rikmann, Ergo; Michelis, Merje; Vaalu, Tarmo; Blonskaja, Viktoria; Vilu, RaivoProceedings of 4th Conference on the Establishment of Cooperation between Companies and Institutions in the Baltic Sea Region2005 / p. 451-463

Analysis of extracellular polymeric substances from pre-treated sludge by high-performance size exclusion chromatographyLepane, Viia; Menert, Anne; Michelis, Merje; Rikmann, Ergo; Vilu, RaivoInternational Symposium Analytical Forum 2004 : Warsaw, Poland : Book of abstracts2004 / p. 202

Characteristics of activated carbon produced from biosludge and its use in wastewater post-treatmentPikkov, Lui; Kallas, Juha; Rüütmann, Tiia; Rikmann, ErgoEnvironmental technology2001 / p. 229-236 : ill

Influence of thermal pre-treatment on mesophilic anaerobic digestion of sludgesMenert, Anne; Vaalu, Tarmo; Michelis, Merje; Blonskaja, Viktoria; Rikmann, Ergo; Mets, Aita; Vilu, RaivoThe 7th International Conference : Environmental Engineering : May 22-23, 2008, Vilnius, Lithuania : selected papers. Volume II, Water engineering. Energy for buildings2008 / p. 625-635 : ill

Possibilities of production of active carbon from biological sludgePikkov, Lui; Kallas, Juha; Rikmann, Ergo23rd Estonian Chemistry Days : abstracts of scientific conference1997 / p. 117

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