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Welcome to JASS!-- a Java based Activated Sludge process Simulator
From this page you can reach our activated sludge process simulator constructed for network usage. The simulator is implemented with 10 zones using the IAWQ model no 1 and a 10 layers settler model. It is possible to simulate pre- and post denitrification systems as well as some step feed strategies. We recommend you to use a display adapter with a resolution of at least 1024*768 pixel and 16 bit color palette. The simulator can be used with less resolution but the whole interface may not fit into the screen. Older versions of Netscape and Explorer (i.e 3.0) may give corrupted data presentation.
SIMULATOR REMARKS
Demo of JASS (New version 001120) Some restrictions may occur
Release notes (Updated 001122) List of upgrades and bug fixes
Lab versions: Lab 1 , Lab 2 . For students in our course Wastewater treatment.
Uppsala WWTP Password required
Västerås WWTP

 Password required
Bromma WWTP Password required
pre Styrning och reglering av avloppsreningsverk -April 2001.
post Styrning och reglering av avloppsreningsverk -April 2001

 

Some pictures from recent courses:
    Bilder från kursen Styrning och reglering av avloppsreningsverk -Oktober 2001
   
    Bilder från kursen Styrning och reglering av avloppsreningsverk -Oktober 2001
    Bilder från kursen Styrning och reglering av avloppsreningsverk -April 2001
    Bilder från kursen Styrning och reglering av avloppsreningsverk -Oktober 2000

From time to time, we do special versions of JASS for specific wastewater treatment plants. If you are interested in simulating your plant, please contact Bengt Carlsson: bengt.carlsson@it.uu.se.

If you have comments or ideas how to improve the simulator, please contact Pär Samuelsson: par.samuelsson@it.uu.se  

Interesting links and JASS related material to download or view (pdf-format, Acrobate Reader 3.0 is needed):
    Short users manual.
    Example of lab instructions for JASS.
    Master thesis describing JASS in detail .
    Link to our research in wastewater treatment
    Link to our course in Wastewater treatment
   

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Department of Systems and Control, Uppsala University | URL http://www.SysCon.uu.se
Last updated: 98-10-23 by Bengt Carlsson