Risto Koivula

Articles in refereed international scientific journals

*Koivula, R., Harjula R., Separation Science and Technology, 46(2), 2011, 315-320 (Selective sorption of technetium on antimony-doped tin dioxide)

*Katri Laatikainen, Jouni Pakarinen, Markku Laatikainen, Risto Koivula, Risto Harjula and Erkki Paatero, Sep.Pur.Technol., 75, 2010, 377-384 (Preparation of Silica-Supported Nanoporous Manganese Oxide)

*Koivula, R., Cent. Eur. J. Chem., 8(6), 2010, 1179-1184 (The effect of dopant’s valence (+III and +V) on the anion/cation uptake properties of antimony-doped tin dioxide)

*Pakarinen, J., Koivula, R., Laatikainen, M., Laatikainen, K., Paatero, E., Harjula, R., J. Haz. Mat., 180, 2010, 234-240 (Nanoporous manganese oixdes as environmental protective materials – Effect of Ca and Mg on metals sorption)

*Koivula, R., Pakarinen, J., Sivenius, M., Sirola, K., Harjula, R., Paatero E., Sep. Pur. Technol., 70, 2009, 54-57 (Use of hydrometallurgical wastewater as a precursor for the synthesis of cryptomelane-type manganese dioxide ion exchange material)

*Malinen, L., Koivula, R., Harjula, R., J. Haz. Mat., 172, 2009, 875-879 (Sorption of radiocobalt and its EDTA complex on titanium antimonates)

*Malinen, L., Koivula, R., Harjula, R., Water Sci. Technol., 2009, 60(4), 1097-1101 (Removal of radiocobalt from EDTA-complexes using oxidation and selective ion exchange)

*Pakarinen, J. Laatikainen, M., Sirola, K., Paatero, E., Koivula, R, Harjula, R., 2009, 44:13, 3045-3074.(Behavior of Silica-Supported manganese Oxides in Hydrometallurgical Separations, Separation Science and Technology)

*Koivula, R.; Paajanen, A.; Harjula, R.; Lehto, J. Solvent Extraction and Ion Exchange, 2003, 21(6), 915-928 (Decontamination of Radioactive Cobalt, Nickel, Strontium and Cesium from Simulate Solutions using Tin Antimonate Columns)

*Koivula, R.; Harjula, R.; Lehto, J. Separation Science and Technology, 2003, 38(15), 3795-3808 (Ni-63 and Co-57 uptake and selectivity of tin antimonates of different structure)

*Koivula, R.; Harjula, R.; Lehto, J. Microporous and Mesoporous Materials, 2002, 55, 231-238 (Structure and ion exchange properties of tin antimonates with various Sn and Sb contents)

*Koivula, R.; Harjula, R.; Lehto, J. J.Mater.Chem., 2002, 12, 3615-3619 (The effect of 0-100% Sn/Sb substitution on nickel uptake of tin antimonates)

*Koivula, R., Lehto, J.,Pajo, L., Gale, T. and Leinonen, H., Hydrometallurgy, 2000, 56(1), 93-108, (Purification of metal plating rinse waters with chelating ion exchangers)

*Koivula, R. and Lehto, J., Radiochemistry, 1998, 40(6), 507-510, (Ion exchange of radionuclides on natural and modified mica minerals)

Articles in refereed international edited volumes and scientific conference proceedings

*Koivula, R., Harjula,R., Proceeding of Waste Management 2010 Conference, March 7-12, 2010, Tucson, AZ, (Minimization of hydroboric acid containing decontamination solutions)

*Harjula, R., Koivula, R., Malinen, L., Proceeding of Waste Management 2010 Conference, March 7-12, 2010, Tucson, AZ, (Removal of Radiocobalt from EDTA-Complexes using Titanium Antimonate Sorbents)

*Harjula,R., Paajanen, A., Koivula, R., Tusa, E., Kvarnstöm, R., Proceeding of Waste Management 2009 Conference, February 25-March 1, 2009, Tucson, AZ, (Removal Of Antimony-124 from PWR Coolant Water)

*Harjula,R., Koivula, R., Paajanen, A., Helariutta, K., Kuronen, M., Kelokaski, P. and Turunen, M., in New developments and improvements in processing of problematic radioactive waste streams, IAEA-TECDOC-1579, International Atomic Energy Agency, Vienna, 2008, (Novel Highly Selective Inorganic Ion Exchangers For The Treatment Of Problematic Liquid Radwaste)

*Koivula, R. and Harjula, R., Proceeding of Waste Management 2007 Conference, February 25-March 1, 2007, Tucson, AZ, (Selective sorption of technetium-99 on modified tin dioxide)

*Koivula, R., Harjula, R. and Lehto, J., in J. M. Loureiro and M.T. Mykola (Eds.), Nato Science Series: Combined and Hybrid Adsorbents, 37-47, 2006, Spinger-Verlag (Selective removal of radionuclides from nuclear waste effluents using inorganic ion exchangers)

*R.O. Harjula, R. Koivula and A. Paajanen, Waste Management 2006 Conference, February 26-March 2, 2006, Tucson, AZ, (Removal Of Sb-125 And Tc-99 From Liquid Radwaste By Novel Adsorbents)

*Koivula, R., Paajanen, A. and Harjula, R.,Proceeding of Waste Management 2005 Conference, February 27-March 3, 2005, Tucson, AZ, (63Ni and 57Co uptake from simulated floor drain waters and acidic decontamination solutions on tin antimonates)

*Harjula, R., Myllymaa, H. and Koivula, R., Proceeding of Waste Management 2005 Conference, February 27-March 3, 2005, Tucson, AZ, (Removal of antimony-125 from simulated liquid radwaste by novel adsorbents)

*Lehto, J., Laurila, T., Leinonen, H. and Koivula, R., Eds. A. Dyer, M.J. Hudson and P.A. Williams, The Royal Society of Chemsitry, 1997, p. 372, (Separation of Chromium with a Fibrous Ion Exchangers, Progress in Ion Exchange – Advances and Applications)

*Lehto, J., Leinonen, H., Koivula, R., Yli-Pentti, A. and Karppinen, T., Eds. I. Gaballah, J. Hanger and R. Solozabal, The Minerals, Metals & Materials Society and Fundación Inasmet, 1999, Vol III, p. 2449., In Proceeding of Global Symposium on Recycling, Waste Treatment and Clean Technology- REWAS-99, (Removal of Toxic Heavy Metals from Metallurgical Waste Effluents with Chelating Ion Exchange Resins)

Others

*Koivula, R., JAEA- Review 2009-062, p. 78-90, Proceedings of the 3rd seminar of R&D on Advanced ORIENT, October 30th , 2009 Tohogu University, Japan (Radionuclide Separation by Inorganic Ion Exchangers – recent industrial applications and new developments)

*Invention declaration 10/2009 from use of antimony oxide in waste water purification.

*Patent Application EP 09158223.9, 2009 “Novel ion exchanger method of producing the same and the use thereof” filled 4/2009.

*Koivula, R. Inorganic ion exchangers for decontamination of radioactive wastes generated by the nuclear power plants?, 2003, Doctoral Thesis, University of Helsinki, ISSN 0358-7746, http://ethesis.helsinki.fi.