MY NAME IS PAULO,I AM AN OPERATOR IN A ACTIVATED SLUDGE PLANT IN CANADA AND WE ARE LOOKINF TO PURCHASE A SOFTWARE TO SIMULATE THE ACTIVATED SLUDGE PROCESS.WHEN I WAS IN SHCOOL I WORKED WITH SUCH SOFTWARE AND I FOUND IT TO BE VERY GOOD FOR THE TRAINING OF NEW OPERATORS.I HAVE 13 YEARS OF EXPERIENCE IN THE PLANT AND LATELY MANY NEW YOUNGS OPERATORS ARE JOINING THE STAFF.I WOULD LIKE TO FIND SUCH A SOFTWARE FOR OUR PLANT

THANK YOU IN ADVANCE FOR YOUR HELP 

CANADIAN OPERATOR

http://www.scitrav.com/wwater/sasspro/sasspro.asp

Also, a very informative website

http://www.scitrav.com/wwater/waterlnk.htm