PRELIMUSERS GUIDE (Amended)

 

Documentationfor the EPA Computer Program / Model

forDeveloping Local Limits for Industrial Pretreatment Programs

atMunicipal Sewage Treatment Works (Version 3.0)

ReportNo WSAA 19

 

November 1990

 

ChangesSummary

 

UnderUrban Water Research Association of Australia Research Project No. SS-43 CampScott Furphy Pty. Ltd. and the Mornington Peninsula & District Water Boardhave adapted the US EPA PRELIM program, to produce a computer based model, relevantto Australian conditions, and capable of estimating the impact of tradewastes on treatment systems.

 

Thechanges involved in adapting the model for Australian conditions are summarisedas follows:

 

 

-                        Replacement of US terminology with Australian terminology

 

-                        Conversion of the program to run on SI metric units

 

-                        Expansion and revision of the default pollutants schedule and databases to more closely reflect Australian conditions

 

-                        Expansion of the model to allow for inhibition in trickling filterplants

 

-                        Modification of the output routines to allow more efficient use ofcomputer facilities and more convenient operation in theinstallation/calibration and operational phases.

 

Aspart of the revision, the model was calibrated and tested for three plantsoperated by the Mornington Peninsula & District Water Board. The plantsinvolved were Mornington, Frankston and Lyndhurst, which include the followingtreatment processes: activated sludge, primary sedimentation, tricklingfilters, polishing ponds, lagoons, anaerobic digestion and sludge lagoons.

 

The Users Guide has beenrevised to include the above features and the modified program codes.

 

 

Copiesof the Report are available from WSAA, price $A40. Orders may be placed throughthe Bookshop at www.wsaa.asn.au or by email to info@wsaa.asn.au.