WATER9, Version 3.0***The WATER9 model was developed using a software that is now outdated. Because of this, the model is not reliably functional on computers using certain operating systems such as Windows Vista or Windows 7. We are anticipating that additional problems will arise as PCs switch to the other operating systems. Therefore, we can no longer provide assistance to users of WATER9. The model will remain on the website to be used at your discretion and at your own risk.
Released June 29, 2006
(This program supersedes WATER8, Chem9, and Chemdat8, and WATER9 version 1.0)
Version 3.0 is an update and upgrade to the previous version.
- Install WATER9, version 3.0
- Changes to WATER9 Version 3 and Documentation
- WATER9 Support
- WATER9 Training
- Back to WATER9, version 2.0
WATER9, the wastewater treatment model, is a Windows based computer program and consists of analytical expressions for estimating air emissions of individual waste constituents in wastewater collection, storage, treatment, and disposal facilities; a database listing many of the organic compounds; and procedures for obtaining reports of constituent fates, including air emissions and treatment effectiveness.
WATER9 is a significant upgrade of features previously obtained in the computer programs WATER8, Chem9, and Chemdat8. WATER9 contains a set of model units that can be used together in a project to provide a model for an entire facility. WATER9 is able to evaluate a full facility that contains multiple wastewater inlet streams, multiple collection systems, and complex treatment configurations. WATER9 provides separate emission estimates for each individual compound that is identified as a constituent of the wastes. The emission estimates are based upon the properties of the compound and its concentration in the wastes. To obtain these emission estimates, the user must identify the compounds of interest and provide their concentrations in the wastes. The identification of compounds can be made by selecting them from the database that accompanies the program or by entering new information describing the properties of a compound not contained in the database.
WATER9 has the ability to use site-specific compound property information, and the ability to estimate missing compound property values. Estimates of the total air emissions from the wastes are obtained by summing the estimates for the individual compounds.
The EPA document, AIR EMISSIONS MODELS FOR WASTE AND WASTEWATER includes the equations used in the WATER9 model.
|WATER9 Files for version 3|
Program File - version 3.0
||(ZIP 17 M)
|WATER9 Version 3 Changes and Documentation|
|Changes to WATER9 Version 3|
WATER9 version 3 is an update and an upgrade of the previous version of WATER9. New features have been added to improve the use of WATER9.
-More extensive reporting of results,
Corrections to WATER9 include:
-Incorrect Acetone pKa specification,
Example Scenarios (ZIP 550K)
Example scenario files contain information that will assist you in modeling units with WATER9. A series of example scenarios are provided in the guidance files. Topics include:
Each guidance topic typically includes:
Manual- The manual has not been updated for version 3.0.
AIR EMISSIONS MODELS FOR WASTE AND WASTEWATER
EPA-453/R-94-080A - 1994
| (PDF 500K)