Farmer perceptions and pesticide use practices in vegetable production in Ghana WJ Ntow, HJ Gijzen, P Kelderman, P Drechsel Pest Management Science: formerly Pesticide Science 62 (4), 356-365, 2006 | 600 | 2006 |
Modeling the PAO–GAO competition: effects of carbon source, pH and temperature CM Lopez-Vazquez, A Oehmen, CM Hooijmans, D Brdjanovic, HJ Gijzen, ... Water Research 43 (2), 450-462, 2009 | 492 | 2009 |
Long term effects of salt on activity, population structure and floc characteristics in enriched bacterial cultures of nitrifiers MS Moussa, DU Sumanasekera, SH Ibrahim, HJ Lubberding, ... Water research 40 (7), 1377-1388, 2006 | 356 | 2006 |
Effect of total ammonia nitrogen concentration and pH on growth rates of duckweed (Spirodela polyrrhiza) JR Caicedo, NP van Der Steen, O Arce, HJ Gijzen Water research 34 (15), 3829-3835, 2000 | 317 | 2000 |
Chronic ammonia toxicity to duckweed-fed tilapia (Oreochromis niloticus) SA El-Shafai, FA El-Gohary, FA Nasr, NP van der Steen, HJ Gijzen Aquaculture 232 (1-4), 117-127, 2004 | 279 | 2004 |
Nutrient recovery from domestic wastewater using a UASB-duckweed ponds system SA El-Shafai, FA El-Gohary, FA Nasr, NP Van Der Steen, HJ Gijzen Bioresource technology 98 (4), 798-807, 2007 | 267 | 2007 |
Factors affecting the microbial populations at full-scale enhanced biological phosphorus removal (EBPR) wastewater treatment plants in The Netherlands CM López-Vázquez, CM Hooijmans, D Brdjanovic, HJ Gijzen, ... Water research 42 (10-11), 2349-2360, 2008 | 262 | 2008 |
Solids removal in upflow anaerobic reactors, a review N Mahmoud, G Zeeman, H Gijzen, G Lettinga Bioresource technology 90 (1), 1-9, 2003 | 255 | 2003 |
Association of methanogenic bacteria with ovine rumen ciliates CK Stumm, HJ Gijzen, GD Vogels British Journal of Nutrition 47 (1), 95-99, 1982 | 221 | 1982 |
Nitrogen mass balance across pilot-scale algae and duckweed-based wastewater stabilisation ponds OR Zimmo, NP Van der Steen, HJ Gijzen Water Research 38 (4), 913-920, 2004 | 220 | 2004 |
Comparison of ammonia volatilisation rates in algae and duckweed-based waste stabilisation ponds treating domestic wastewater OR Zimmo, NP Van Der Steen, HJ Gijzen Water research 37 (19), 4587-4594, 2003 | 212 | 2003 |
Modelling nitrification, heterotrophic growth and predation in activated sludge MS Moussa, CM Hooijmans, HJ Lubberding, HJ Gijzen, ... Water research 39 (20), 5080-5098, 2005 | 191 | 2005 |
Anaerobic sewage treatment in a one-stage UASB reactor and a combined UASB-Digester system N Mahmoud, G Zeeman, H Gijzen, G Lettinga Water Research 38 (9), 2348-2358, 2004 | 184 | 2004 |
Temperature effects on glycogen accumulating organisms CM Lopez-Vazquez, CM Hooijmans, D Brdjanovic, HJ Gijzen, ... water research 43 (11), 2852-2864, 2009 | 167 | 2009 |
Anaerobic stabilisation and conversion of biopolymers in primary sludge—effect of temperature and sludge retention time N Mahmoud, G Zeeman, H Gijzen, G Lettinga Water Research 38 (4), 983-991, 2004 | 163 | 2004 |
Production of biogas from water hyacinth (Eichhornia crassipes)(Mart)(Solms) in a two-stage bioreactor AK Kivaisi, M Mtila World Journal of Microbiology and Biotechnology 14, 125-131, 1997 | 150 | 1997 |
Anaerobic digestion for sustainable development: a natural approach HJ Gijzen Water Science and Technology 45 (10), 321-328, 2002 | 137 | 2002 |
Accumulation of persistent organochlorine contaminants in milk and serum of farmers from Ghana WJ Ntow, LM Tagoe, P Drechsel, P Kelderman, HJ Gijzen, E Nyarko Environmental research 106 (1), 17-26, 2008 | 135 | 2008 |
Cyanide toxicity and cyanide degradation in anaerobic wastewater treatment HJ Gijzen, E Bernal, H Ferrer Water Research 34 (9), 2447-2454, 2000 | 131 | 2000 |
Environmental and financial life cycle impact assessment of drinking water production at Waternet R Barrios, M Siebel, A Van der Helm, K Bosklopper, H Gijzen Journal of Cleaner Production 16 (4), 471-476, 2008 | 129 | 2008 |