Chapter 3. Estimation of local effects of wastewater discharge

River and Stream Water Quality Model QUAL2K

Introduction to the Water Quality Model QUAL2K

Keywords: one dimensional, steady state, features,input data

System segmentation and location of pollution sources

Section keywords: reach, element, segment, headwater, point sources, withdrawals

Expected product: graphical representation of the river stretch segmentation with numerical identification of reaches and elements and the location of point sources and withdrawals.

Model data requirements

Section keywords: headwater data, reach data, meteorological data, water column data, light and heat input, point and diffuse sources and withdrawals data, hydraulics, temperature and water quality data, diel data

Related documents or sources of information: Aguas del Puerto, Conhydra, ISAGEN, Cormagdalena.

Expected product: Table with data

Model calibration and validation

Section keywords:

Expected product:

Generation of future scenarios by means of QUAL2K

Section keywords: Scenario A: future scenario without a water pollution control strategy, Scenario B: future scenario with proposed water pollution control strategy

Expected product: Graphs obtained from the model for both scenarios (main parameters)

Causal diagram analysis

Section keywords: PAS cycle, cause-effect relatinships, Scenario A: future scenario without a water pollution control strategy, Scenario B: future scenario with proposed water pollution control strategy.

Expected product: Causal diagrams for both scenarios.