To simulate the anaerobic ponds at Churchill Abattoir, BioWin
was first calibrated against measured data from the field monitoring
programme. Data sets used in the calibration process included
effluent COD concentration and TSS concentration. The calibration
process was conducted using a relatively complete and parallel data set for ponds B and E over 150 days. Data for Pond B was used to test the skill of BioWin simulating a unit process while data for pond E was used to test the skill in modelling the whole wastewater system. Fig. 2 shows the configuration of the 5 ponds at Churchill Abattoir as represented by BioWin interface window.