| Quantification of greenhouse gas emissions from waste management processes for municipalities–A comparative review focusing on Africa E Friedrich, C Trois Waste management 31 (7), 1585-1596, 2011 | 173 | 2011 |
| Carbon footprint analysis for increasing water supply and sanitation in South Africa: a case study E Friedrich, S Pillay, CA Buckley Journal of Cleaner Production 17 (1), 1-12, 2009 | 157 | 2009 |
| Life-cycle assessment as an environmental management tool in the production of potable water E Friedrich Water Science and Technology 46 (9), 29-36, 2002 | 136 | 2002 |
| The use of LCA in the water industry and the case for an environmental performance indicator E Friedrich, S Pillay, CA Buckley Water Sa 33 (4), 2007 | 97 | 2007 |
| Environmental life cycle assessments for water treatment processes–A South African case study of an urban water cycle E Friedrich, S Pillay, CA Buckley Water Sa 35 (1), 2009 | 92 | 2009 |
| Current and future greenhouse gas (GHG) emissions from the management of municipal solid waste in the eThekwini Municipality–South Africa E Friedrich, C Trois Journal of Cleaner Production 112, 4071-4083, 2016 | 85 | 2016 |
| GHG emission factors developed for the recycling and composting of municipal waste in South African municipalities E Friedrich, C Trois Waste management 33 (11), 2520-2531, 2013 | 73 | 2013 |
| GHG emission factors developed for the collection, transport and landfilling of municipal waste in South African municipalities E Friedrich, C Trois Waste management 33 (4), 1013-1026, 2013 | 64 | 2013 |
| Life-cycle assessments in the South African water sector: a review and future challenges C Buckley, E Friedrich, H von Blottnitz Water Sa 37 (5), 719-726, 2011 | 49 | 2011 |
| Status of life cycle assessment and engineering research in South Africa AC Brent, MB Rohwer, E Friedrich, H Blottnitz The International Journal of Life Cycle Assessment 7, 167-172, 2002 | 46 | 2002 |
| Environnmental life cycle assessment of potable water production. E Friedrich University of KwaZulu-Natal MScEng Thesis, 2001 | 45 | 2001 |
| Environmental life cycle assessment for potable water production–a case study of seawater desalination and mine-water reclamation in South Africa T Goga, E Friedrich, CA Buckley Water Sa 45 (4), 700-709, 2019 | 41 | 2019 |
| Life cycle assessment of an industrial water recycling plant SD Pillay, E Friedrich, CA Buckley Water Science and Technology 46 (9), 55-62, 2002 | 39 | 2002 |
| Vulnerability of wastewater infrastructure of coastal cities to sea level rise: A South African case study E Friedrich, D Kretzinger Water Sa 38 (5), 755-764, 2012 | 32 | 2012 |
| Greenhouse gases accounting and reporting for waste management–A South African perspective E Friedrich, C Trois Waste Management 30 (11), 2347-2353, 2010 | 30 | 2010 |
| The use of life cycle assessment in the selection of water treatment processes E Friedrich, CA Buckley Water Research Commission (WRC) Report,(1077/1) 2, 2002 | 25 | 2002 |
| Climate change and urban road transport-a South African case study of vulnerability due to sea level rise E Friedrich, S Timol Journal of the South African Institution of Civil Engineering= Joernaal van …, 2011 | 13 | 2011 |
| The use of environmental life cycle assessment for the production of potable water E Friedrich University of Natal, Durban, 2001 | 13 | 2001 |
| Status and prospects of life cycle assessments and carbon and water footprinting studies in South Africa KG Harding, E Friedrich, H Jordaan, B Le Roux, P Notten, V Russo, ... The International Journal of Life Cycle Assessment 26, 26-49, 2021 | 9 | 2021 |
| Life-cycle assessment as an environmental assessment tool in the water industry E Friedrich, C Buckley Biennial Conference of the Water Institute of Southern Africa, 19-23, 2002 | 8 | 2002 |
