CONSTRUCTING ACCURATE WATER QUALITY MODEL FOR COMPLYING PUBLIC HEALTH

摘要

Maintaining adequate water quality is a challenging task for a water distribution system. Sampling and continuously monitoring water quality at appropriate locations lack of the capability for predicting system-wide water quality due to the limited coverage and the high cost. Thus, using a well-developed hydraulic and water quality model becomes an essential approach for systematically simulating the hydraulic and water quality dynamics. A water quality model is constructed as a computer-based tool predicting water quality transport and fate. The model is not only a promising alternative for analyzing disinfectant residuals in a cost-effective manner, but also a means of providing enormous engineering insights into the characteristics of water quality variation and the sophisticated process of constituent reactions. However, a water quality model is a reliable tool only if it predicts what a real system behaves. This paper presents a methodology that enables a modeler to efficiently calibrate a water quality model such that the field observed water quality values match with the model simulated values. The approach has provided a generic tool and methodology for engineers to construct the sound water quality model in expedient manner. The method is applied to a real water system and demonstrated that a water quality model can be optimized for managing adequate water supply to public communities.