title: The use of low-quality water on the transport and transformation of waste water in irrigation soils.
abstract: Waste water use for agricultural production in the semi-arid and arid climate areas is increasingly regarded as a solution for water shortage. Still today many questions remain unanswered about the mid- and long-term effect of irrigation by waste water on plant, soil and human health. In this paper the effect of the use of waste water on the soil hydraulic properties, the solute transport and transformation behaviour is being studied conducting steady state and non-steady state waste water application treatments on undisturbed soil columns and a field plot. Detailed spatial and temporal information on the propagation of water and solute is obtained using tensiometers, soil solute extraction and time domain reflectometry probes. The experimental data are processed using the HYDRUS-2D modeling tool. After calibration, the model is used in a predictive way as to simulate the mid- and long-term effects of the use of treated waste water as irrigation water.
authors.affiliation: Department of Land Management and Economics, Faculty of Bioscience Engineering, Katholieke Universiteit Leuven, Leuven, Belgium. ali.erfaniagah@student.kuleuven.be
authors.forename: A
authors.initials: A
authors.lastname: Erfani
authors.forename: G
authors.initials: G
authors.lastname: Wyseure
mesh_terms: D012987:Soil; D012989:Soil Pollutants / Q000032:analysis*; D012995:Solubility; D014865:Waste Disposal, Fluid / Q000379:methods*; D014872:Water Movements; D014873:Water Pollutants / Q000032:analysis*; D014881:Water Supply
chemical_list: D012987:Soil; D012989:Soil Pollutants; D014873:Water Pollutants