A Statistics-Based System for Treatment Plant Operation

P. M. Berthouex, Wenje Lai and A. Darjatmoko
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P. M. Berthouex: The University of Wisconsin-Madison, Department of civil and environmental Engineering
Wenje Lai: The University of Wisconsin-Madison, Department of civil and environmental Engineering
A. Darjatmoko: The University of Wisconsin-Madison, Department of civil and environmental Engineering

A chapter in Statistical Methods for the Assessment of Point Source Pollution, 1989, pp 147-169 from Springer

Abstract: Abstract This paper describes work toward development of a convenient computer system to improve everyday operation and control of the wastewater treatment process. The goal is to help the operator detect the problems in the process and to select appropriate control actions. The system comprises subsystems for a data base management, data analysis including several statistical methods, and an expert advisory system. 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 still under development and are not built into the system. Reference distributions are used to help define the 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-123 and has a user-friendly interface for the communication between the user and the system.

Keywords: Expert System; Discriminant Function; Control Chart; Control Limit; Exponentially Weighted Move Average (search for similar items in EconPapers)
Date: 1989
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DOI: 10.1007/978-94-009-1960-0_9

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