The thesis deals with the issue of simulation of treated wastewater irrigation by the HYDRUS 2D software. The first part of the thesis is designed as a literary research of academic information and knowledge. It aims at introducing the issue of treated wastewater utilization for the purpose of the irrigation with an emphasis on the Czech Republic. The following is an overview of important hydropedological characteristics of soils, the theoretical basis of numerical modeling of movement and transport of solutes in soil and the use of HYDRUS 2D software. The practical part is based on theoretical knowledge and demonstrates the creating process of mathematical model in program HYDRUS 2D, simulating the transport of input pollution in the soil profile. Wastewater used for irrigation was treated using a system of mechanical pretreatment and horizontal filters planted with macrophytes situated on a CW Drazovce. This work describes the calibration and subsequent application of calibrated models for monitored pollution parameters NH4+-N, P-PO4-3 and COD.

The thesis deals with the issue of simulation of treated wastewater irrigation by the HYDRUS 2D software. The first part of the thesis is designed as a theoretical research of academic information and knowledge. It aims at introducing the issue of treated wastewater utilization for the purpose of the irrigation. Furthermore it provides basic theoretical information on numeric simulation of the dissolved materials motion and transport in the soil. The last chapter of the theoretical part describes the calibration of the simulation by the HYDRUS 2D software. The second part of the thesis is devoted to the formation of filtration columns placed in the chosen site of the root zone wastewater plant. Within the filtration columns the automatic irrigation was formed and set off. Measuring of humidity in filtration columns was taking place for 81 days as well as the water sampling after the flow through the soil horizons. On the grounds of the measuring results the calibration of numeric simulation was carried out by the HYDRUS 2D software. The last part of the thesis presents the applications through the extending and alternation of the modelled setting. The main aim of the thesis is to calibrate the model and propose a general solution to advancement at realization of irrigation details when using the treated wastewater for the purpose of irrigation.