| A pilot study of three-stage biological–chemical treatment of landfill leachate applying continuous ferric sludge reuse in Fenton-like process K Klein, A Kivi, N Dulova, I Zekker, E Mölder, T Tenno, M Trapido, T Tenno Clean Technologies and Environmental Policy 19, 541-551, 2017 | 63 | 2017 |
| COMBINED TREATMENT OF PYROGENIC WASTEWATER FROM OIL SHALE RETORTING. K Klein, E Kattel, A Goi, A Kivi, N Dulova, A Saluste, I Zekker, M Trapido, ... Oil Shale 34 (1), 2017 | 47 | 2017 |
| Bio-recalcitrant pollutants removal from wastewater with combination of the Fenton treatment and biological oxidation M Trapido, T Tenno, A Goi, N Dulova, E Kattel, D Klauson, K Klein, ... Journal of water process engineering 16, 277-282, 2017 | 42 | 2017 |
| Hazardous waste landfill leachate treatment by combined chemical and biological techniques E Kattel, A Kivi, K Klein, T Tenno, N Dulova, M Trapido Desalination and Water Treatment 57 (28), 13236-13245, 2016 | 38 | 2016 |
| Combined processes for wastewater purification: treatment of a typical landfill leachate with a combination of chemical and biological oxidation processes D Klauson, A Kivi, E Kattel, K Klein, M Viisimaa, J Bolobajev, S Velling, ... Journal of Chemical Technology & Biotechnology 90 (8), 1527-1536, 2015 | 21 | 2015 |
| Combined methods for the treatment of a typical hardwood soaking basin wastewater from plywood industry D Klauson, K Klein, A Kivi, E Kattel, M Viisimaa, N Dulova, S Velling, ... International journal of environmental science and technology 12, 3575-3586, 2015 | 18 | 2015 |
| Assessment of enhanced biological phosphorus removal process inhibition K Klein, A Mandel, H Lilleoja, S Salmar, T Tenno SN Applied Sciences 2, 1-10, 2020 | 4 | 2020 |
| Estimating the impact of inhibitory substances on activated sludge denitrification process K Klein, T Tenno | 3 | 2019 |
| Evaluation of potential impact of industrial wastewater to biological wastewater treatment processes K Klein, T Tenno Linnaeus Eco-Tech, 227-227, 2016 | | 2016 |
| COMBINED TREATMENT OF PYROGENIC WASTEWATER FROM OIL SHALE RETORTING; pp. 82–96 K KLEIN, E KATTEL, A GOI, A KIVI, N DULOVA, A SALUSTE, I ZEKKER, ... | | |
