| Carbonation of brine impacted fractionated coal fly ash: implications for CO2 sequestration MG Nyambura, GW Mugera, PL Felicia, NP Gathura Journal of environmental management 92 (3), 655-664, 2011 | 170 | 2011 |
| Utilization of fly ash for treatment of coal mines wastewater: Solubility controls on major inorganic contaminants WM Gitari, LF Petrik, O Etchebers, DL Key, C Okujeni Fuel 87 (12), 2450-2462, 2008 | 137 | 2008 |
| The potential of ball-milled South African bentonite clay for attenuation of heavy metals from acidic wastewaters: Simultaneous sorption of Co2+, Cu2+, Ni2+, Pb2+, and Zn2+ ions M Vhahangwele, GW Mugera Journal of Environmental Chemical Engineering 3 (4), 2416-2425, 2015 | 124 | 2015 |
| Application of coal fly ash to circumneutral mine waters for the removal of sulphates as gypsum and ettringite G Madzivire, LF Petrik, WM Gitari, TV Ojumu, G Balfour Minerals Engineering 23 (3), 252-257, 2010 | 102 | 2010 |
| Leaching characteristics of selected South African fly ashes: Effect of pH on the release of major and trace species WM Gitari, OO Fatoba, LF Petrik, VRK Vadapalli Journal of Environmental Science and Health Part A 44 (2), 206-220, 2009 | 99 | 2009 |
| Passive neutralisation of acid mine drainage by fly ash and its derivatives: A column leaching study WM Gitari, LF Petrik, O Etchebers, DL Key, E Iwuoha, C Okujeni Fuel 87 (8-9), 1637-1650, 2008 | 99 | 2008 |
| Defluoridation of groundwater using Fe3+-modified bentonite clay: optimization of adsorption conditions WM Gitari, T Ngulube, V Masindi, JR Gumbo Desalination and Water Treatment 53 (6), 1578-1590, 2015 | 89 | 2015 |
| Fate of sulphate removed during the treatment of circumneutral mine water and acid mine drainage with coal fly ash: Modelling and experimental approach G Madzivire, WM Gitari, VRK Vadapalli, TV Ojumu, LF Petrik Minerals Engineering 24 (13), 1467-1477, 2011 | 85 | 2011 |
| Neutralization of acid mine drainage using fly ash, and strength development of the resulting solid residues VRK Vadapalli, MJ Klink, O Etchebers, LF Petrik, W Gitari, RA White, ... South African Journal of Science 104 (7), 317-322, 2008 | 85 | 2008 |
| Defluoridation of drinking water using Al3+-modified bentonite clay: optimization of fluoride adsorption conditions M Vhahangwele, GW Mugera, N Tholiso Toxicological & environmental chemistry 96 (9), 1294-1309, 2014 | 73 | 2014 |
| Optimization of hydrothermal synthesis of pure phase zeolite Na-P1 from South African coal fly ashes NM Musyoka, LF Petrik, WM Gitari, G Balfour, E Hums Journal of Environmental Science and Health, Part A 47 (3), 337-350, 2012 | 70 | 2012 |
| Comparison of CO2 capture by ex-situ accelerated carbonation and in in-situ naturally weathered coal fly ash GN Muriithi, LF Petrik, O Fatoba, WM Gitari, FJ Doucet, J Nel, SM Nyale, ... Journal of environmental management 127, 212-220, 2013 | 68 | 2013 |
| Synthesis of zeolite-P from coal fly ash derivative and its utilisation in mine-water remediation VRK Vadapalli, WM Gitari, A Ellendt, LF Petrik, G Balfour South African Journal of Science 106 (5), 1-7, 2010 | 62 | 2010 |
| Environmental evaluation and nano-mineralogical study of fresh and unsaturated weathered coal fly ashes SA Akinyemi, WM Gitari, LF Petrik, BB Nyakuma, JC Hower, CR Ward, ... Science of The Total Environment 663, 177-188, 2019 | 58 | 2019 |
| Synthesis of hydroxy sodalite from coal fly ash using waste industrial brine solution NM Musyoka, LF Petrik, G Balfour, WM Gitari, E Hums Journal of Environmental Science and Health, Part A 46 (14), 1699-1707, 2011 | 57 | 2011 |
| Simultaneous removal of metal species from acidic aqueous solutions using cryptocrystalline magnesite/bentonite clay composite: an experimental and modelling approach V Masindi, WM Gitari Journal of Cleaner Production 112, 1077-1085, 2016 | 46 | 2016 |
| Fate of the naturally occurring radioactive materials during treatment of acid mine drainage with coal fly ash and aluminium hydroxide G Madzivire, PP Maleka, VRK Vadapalli, WM Gitari, R Lindsay, LF Petrik Journal of environmental management 133, 12-17, 2014 | 46 | 2014 |
| The leaching behaviour and geochemical fractionation of trace elements in hydraulically disposed weathered coal fly ash SM Nyale, CP Eze, RO Akinyeye, WM Gitari, SA Akinyemi, OO Fatoba, ... Journal of Environmental Science and Health, Part A 49 (2), 233-242, 2014 | 45 | 2014 |
| Partitioning of major and trace inorganic contaminants in fly ash acid mine drainage derived solid residues WM Gitari, LF Petrik, DL Key, C Okujeni International Journal of Environmental Science & Technology 7, 519-534, 2010 | 44 | 2010 |
| Defluoridation of groundwater using diatomaceous earth: optimization of adsorption conditions, kinetics and leached metals risk assessment AA Izuagie, WM Gitari, JR Gumbo Desalination and Water Treatment 57 (36), 16745-16757, 2016 | 43 | 2016 |
Leslie PetrikProfessor of Chemistry, University of the Western CapeVerified email at uwc.ac.za
