| Issue Date | Title | Author(s) |
| 2008 | Adapting UASB technology for sewage treatment in Palestine and Jordan | Mahmoud, Nidal; Zeeman, Grietje; Van Lier, Jules B. |
| 2004 | Anaerobic sewage treatment in a one-stage UASB reactor and a combined UASB-Digester system | Mahmoud, Nidal; Zeeman, Grietje; Gijzen, Huub; Lettinga, Gatze |
| 2004 | Anaerobic stabilisation and conversion of biopolymers in primary sludge: effect of temperature and sludge retention time | Mahmoud, Nidal; Zeeman, Grietje; Gijzen, Huub; Lettinga, Gatze |
| 11-Jun-2001 | Development of cost-effective reclamation technologies for domestic wastewater (CORETECH). | Zeeman, Grietje; Sanders, Wendy; Fayyad, Manar; Khassab, Ghada; El Gohary, Fatima; Al-Sa'ed, Rashed; Angelakis, Andreas; van Lier, Jules |
| 2006 | development of sludge filterability test to assess the solids removal potential of a sludge bed | Mahmoud, Nidal; Zandvoort, Marcel; Van Lier, Jules B.; Zeeman, Grietje |
| 2006 | Interaction between digestion conditions and sludge physical characteristics and behaviour for anaerobically digested primary sludge | Mahmoud, Nidal; Zeeman, Grietje; Gijzen, Huub; Lettinga, Gatze |
| 2003 | Sewage characterisation as a tool for the application of anaerobic treatment in Palestine | Mahmoud, Nidal; Amarneh, Mohammad Naser; Al-Sa'ed, Rashed; Zeeman, Grietje; Gijzen, Huub; Lettinga, Gatze |
| 2003 | Solids removal in upflow anaerobic reactors | Mahmoud, Nidal; Zeeman, Grietje; Gijzen, Huub; Lettinga, Gatze |