Author(s)

P. Sudjono, K. Koga, H. Araki & N. Booij

Abstract

The one-dimensional water quality model, so call branch-node model, is developed. The developed model is applied to evaluate water quality improvement measures in open channel networks and also to simulate water quality concentrations in unsteady flow in a tidal river. The simulated results of open channel networks in urban area in Saga, Japan, show that a dilution approach of inducing clean water with/without developed sewerage systems can be an alternative to preserve the water environment. For the simulation in a tidal river, two water quality constituents, BOD ( Bio-chemical Oxygen Demand ) and Chloride, are adopted to get calibration results of the River Rokkaku in Saga. Through the calibration results on Chloride, a significa

Keywords