| congruence in the performance of model nitrifying activated sludge plants located in germany, scotland and spain. | a laboratory model nitrifying activated sludge plant treating oecd synthetic sewage was designed and constructed by each of three laboratories in germany, scotland and spain in order to produce a sludge inoculum for 5 rapid toxicity bioassays. the plants were run for 3 years and produced sludge for the microbially based bioassays vibrio fischeri bioluminescence, atp luminescence and respiration, and, nitrification and enzyme inhibition. although the initial sludge inoculum for the plants differe ... | 2003 | 12465799 |