970821
0.0.1
changed colours of pump symbols (green means
active pump, yellow inactive), changed value of COD
for carbon source to 1200000 mg/l (methanol), changed
text colours in the interface
970822
0.0.2
added value checking for all input data, added units to the
scrolling graph, changed text in choice bars to lower case
letters
970825
0.1.0
added possibility to click on a zone (or the settler) in the
processimage to shade the corresponding bars in the staple-
diagrams. This makes it a lot easier to read off the diagrams.
We thank Stefan Mårtensson for suggesting this feature.
970903
0.1.1
added LQG regulator for external carbon source, added units of
all flows in the process image, corrected deafault values of bar diagrams
971212
0.1.2
modified data transfer between different program parts (bug fixed)
changes in process parameters now affect all zones (bug fixed)
added possibility to plot air flow rates and carbon flow rates in all basins.
980212
Updated versions for the waste water treatment plants in Uppsala and Västerås
completed.
980223
added possibility to run simulations with time varying flows in the simulators
built for Uppsala and Västerås wwt plants