| Size distribution of wastewater COD fractions as an index for biodegradability E Dulekgurgen, S Doğruel, Ö Karahan, D Orhon Water research 40 (2), 273-282, 2006 | 229 | 2006 |
| COD fractionation of tannery wastewaters—Particle size distribution, biodegradability and modeling Ö Karahan, S Dogruel, E Dulekgurgen, D Orhon Water Research 42 (4-5), 1083-1092, 2008 | 162 | 2008 |
| Industrial wastewater treatment by activated sludge D Orhon, FG Babuna, O Karahan IWA publishing, 2009 | 156 | 2009 |
| Mechanism and design of sequencing batch reactors for nutrient removal D Orhon, O Karahan, GE Zengin, O Olsson, M Bauer Iwa Publishing, 2005 | 153 | 2005 |
| The effect of residual microbial products on the experimental assessment of the particulate inert COD in wastewaters D Orhon, Ö Karahan, S Sözen Water Research 33 (14), 3191-3203, 1999 | 143 | 1999 |
| Effect of polymeric substrate on sludge settleability AMP Martins, Ö Karahan, MCM van Loosdrecht Water Research 45 (1), 263-273, 2011 | 99 | 2011 |
| Biological treatability of raw and ozonated penicillin formulation effluent EU Cokgor, IA Alaton, O Karahan, S Dogruel, D Orhon Journal of hazardous materials 116 (1-2), 159-166, 2004 | 96 | 2004 |
| Validity of Monod kinetics at different sludge ages–peptone biodegradation under aerobic conditions D Orhon, EU Cokgor, G Insel, O Karahan, T Katipoglu Bioresource technology 100 (23), 5678-5686, 2009 | 94 | 2009 |
| Biodegradability and denitrification potential of settleable chemical oxygen demand in domestic wastewater DO Tas, Ö Karahan, G I˙ nsel, S Övez, D Orhon, H Spanjers Water Environment Research 81 (7), 715-727, 2009 | 89 | 2009 |
| Modeling the utilization of starch by activated sludge for simultaneous substrate storage and microbial growth Ö Karahan, MCM van Loosdrecht, D Orhon Biotechnology and bioengineering 94 (1), 43-53, 2006 | 82 | 2006 |
| Unified basis for the respirometric evaluation of inhibition for activated sludge G Insel, O Karahan, S Özdemir, L Pala, T Katipoğlu, EU Cokgör, D Orhon Journal of Environmental Science and Health Part A 41 (9), 1763-1780, 2006 | 78 | 2006 |
| Modification of activated sludge model no. 3 considering direct growth on primary substrate MCM van Loosdrecht, D Orhon Water Science and Technology 47 (11), 219-225, 2003 | 76 | 2003 |
| Critical appraisal of respirometric methods for metal inhibition on activated sludge EU Cokgor, S Ozdemir, O Karahan, G Insel, D Orhon Journal of hazardous materials 139 (2), 332-339, 2007 | 74 | 2007 |
| Respirometric assessment of storage yield for different substrates Ö Karahan-Gül, N Artan, D Orhon, M Henze, MCM Van Loosdrecht Water Science and Technology 46 (1-2), 345-352, 2002 | 71 | 2002 |
| Policy implementations for organic agriculture in Turkey Z Kenanoğlu, Ö Karahan British Food Journal 104 (3/4/5), 300-318, 2002 | 69 | 2002 |
| Important limitations in the modeling of activated sludge: biased calibration of the hydrolysis process G Insel, Ö Karahan Gül, D Orhon, PA Vanrolleghem, M Henze Water Science and Technology 45 (12), 23-36, 2002 | 60 | 2002 |
| Experimental evaluation of starch utilization mechanism by activated sludge Ö Karahan, A Martins, D Orhon, MCM van Loosdrecht Biotechnology and bioengineering 93 (5), 964-970, 2006 | 47 | 2006 |
| The effect of mixing pharmaceutical and tannery wastewaters on the biodegradation characteristics of the effluents EU Cokgor, O Karahan, D Orhon Journal of hazardous materials 156 (1-3), 292-299, 2008 | 46 | 2008 |
| Experimental assessment of bacterial storage yield Ö Karahan-Gül, N Artan, D Orhon, M Henze, MCM van Loosdrecht Journal of Environmental Engineering 128 (11), 1030-1035, 2002 | 44 | 2002 |
| A scientific approach to wastewater recovery and reuse in the textile industry D Orhon, F Germirli Babuna, I Kabdasli, FG Insel, Ö Karahan, ... Water science and technology 43 (11), 223-231, 2001 | 42 | 2001 |
