| Effect of various sludge digestion conditions on sulfonamide, macrolide, and tetracycline resistance genes and class I integrons Y Ma, CA Wilson, JT Novak, R Riffat, S Aynur, S Murthy, A Pruden Environmental science & technology 45 (18), 7855-7861, 2011 | 403 | 2011 |
| Fundamentals of wastewater treatment and engineering R Riffat CRC Press, 2012 | 239* | 2012 |
| Bioflocculation management through high-rate contact-stabilization: A promising technology to recover organic carbon from low-strength wastewater A Rahman, FA Meerburg, S Ravadagundhi, B Wett, J Jimenez, C Bott, ... Water Research 104, 485-496, 2016 | 123 | 2016 |
| Integration of forward osmosis and membrane distillation for sustainable wastewater reuse T Husnain, Y Liu, R Riffat, B Mi Separation and Purification Technology 156, 424-431, 2015 | 97 | 2015 |
| Denitrification with Carbon AdditionKinetic Considerations P Dold, I Takács, Y Mokhayeri, A Nichols, J Hinojosa, R Riffat, C Bott, ... Water Environment Research 80 (5), 417-427, 2008 | 84 | 2008 |
| Examining the influence of substrates and temperature on maximum specific growth rate of denitrifiers Y Mokhayeri, A Nichols, S Murthy, R Riffat, P Dold, I Takacs Water Science and Technology 54 (8), 155-162, 2006 | 80 | 2006 |
| A-stage and high-rate contact-stabilization performance comparison for carbon and nutrient redirection from high-strength municipal wastewater A Rahman, H De Clippeleir, W Thomas, JA Jimenez, B Wett, A Al-Omari, ... Chemical Engineering Journal 357, 737-749, 2019 | 73 | 2019 |
| Balancing yield, kinetics and cost for three external carbon sources used for suspended growth post-denitrification. Y Mokhayeri, R Riffat, S Murthy, W Bailey, I Takacs, C Bott Water Science and Technology 60 (10), 2485-2491, 2009 | 69 | 2009 |
| Characterizing denitrification kinetics at cold temperature using various carbon sources in lab-scale sequencing batch reactors Y Mokhayeri, R Riffat, I Takacs, P Dold, C Bott, J Hinojosa, W Bailey, ... Water science and technology 58 (1), 233-238, 2008 | 62 | 2008 |
| Impact of aerobic famine and feast condition on extracellular polymeric substance production in high-rate contact stabilization systems A Rahman, M Mosquera, W Thomas, JA Jimenez, C Bott, B Wett, ... Chemical Engineering Journal 328, 74-86, 2017 | 43 | 2017 |
| Laboratory studies on the anaerobic biosorption process R Riffat, RR Dague Water environment research 67 (7), 1104-1110, 1995 | 39 | 1995 |
| Microbial population dynamics in temperature‐phased anaerobic digestion of municipal wastewater sludge SA Hameed, R Riffat, B Li, I Naz, M Badshah, S Ahmed, N Ali Journal of Chemical Technology & Biotechnology 94 (6), 1816-1831, 2019 | 37 | 2019 |
| Specific methanogenic activity of halophilic and mixed cultures in saline wastewater R Riffat, K Krongthamchat International Journal of Environmental Science & Technology 2 (4), 291-299, 2006 | 37 | 2006 |
| Specific methanogenic activity of halophilic and mixed cultures in saline wastewater R Riffat, K Krongthamchat International Journal of Environmental Science & Technology 2 (4), 291-299, 2006 | 37 | 2006 |
| Moving forward with A-stage and high-rate contact-stabilization for energy efficient water resource recovery facility: Mechanisms, factors, practical approach, and guidelines A Rahman, M Hasan, F Meerburg, JA Jimenez, MW Miller, CB Bott, ... Journal of Water Process Engineering 36, 101329, 2020 | 35 | 2020 |
| Anaerobic treatment of high-saline wastewater using halophilic methanogens in laboratory-scale anaerobic filters R Riffat, K Krongthamchat Water environment research 79 (2), 191-198, 2007 | 34 | 2007 |
| Primary sludge fermentate as carbon source for mainstream partial denitrification–anammox (PdNA) P Ali, N Zalivina, T Le, R Riffat, S Ergas, B Wett, S Murthy, A Al‐Omari, ... Water Environment Research 93 (7), 1044-1059, 2021 | 33 | 2021 |
| Biodegradation of salicylic acid, acetaminophen and ibuprofen by bacteria collected from a full-scale drinking water biofilter M Hasan, K Alfredo, S Murthy, R Riffat Journal of Environmental Management 295, 113071, 2021 | 31 | 2021 |
| Effect of trace metals on halophilic and mixed cultures in anaerobic treatment K Krongthamchat, R Riffat, S Dararat International Journal of Environmental Science & Technology 3 (2), 103-112, 2006 | 31 | 2006 |
| A review and evaluation of the environmental impact assessment process in Pakistan R Riffat, D Khan Journal of Applied Science in Environmental Sanitation 1, 17-29, 2006 | 30 | 2006 |
