| Main Title |
Statistics-Based Approach to Wastewater Treatment Plant Operations. |
| Author |
Berthouex, P. M. ;
Lai, W. ;
Darjatmoko, A. ;
|
| CORP Author |
Wisconsin Univ.-Madison.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
| Publisher |
cJun 89 |
| Year Published |
1989 |
| Report Number |
EPA/600/J-89/060; |
| Stock Number |
PB90-103508 |
| Additional Subjects |
Waste water ;
Water treatment ;
Industrial plants ;
Management methods ;
Systems engineering ;
Control theory ;
Systems analysis ;
Decision support systems
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-103508 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
14p |
| Abstract |
The paper describes work toward development of a convenient decision support system to improve everyday operation and control of the wastewater treatment process. The goal is to help the operator detect problems in the process and select appropriate control actions. The system comprises subsystems for database management, data analysis including several statistical methods, and expert advice. The statistical methods investigated include construction of external reference distributions, computation of moving averages, graphical methods, discriminant functions for early detection of upsets and several kinds of control charts. The latter two methods are not built into the expert system. Reference distributions are used to help define fuzzy terms such as high and low for the conditions of the variables involved in the expert system control rules. The system is written in dBase-III and Lotus 1-2-3 and has a user-friendly interface for communication between the user and the system. |
| Supplementary Notes |
Pub. in Jnl. of Environmental Engineering, v115 n3 p650-671 Jun 89. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
| NTIS Title Notes |
Journal article. |
| Category Codes |
50B; 91A; 43F |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/14 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
932616974 |
| Origin |
NTIS |
| Type |
CAT |
