| Abstract | U ovom diplomskom radu predmet istraživanja je empirijski odrediti hidrauličku vodljivost i simulirati transport potencijalno toksičnih metala u programu HYDRUS 1D. Empirijske formule koje se koriste za određivanje hidrauličke vodljivosti temelje se na korištenju podataka o granulometrijskom sastavu porozne sredine. Rezultati granulometrijskih analiza predstavljaju osnovni i jedini ulazni parametar koji se primjenjuje u empirijskim formulama. Tako je raspon hidrauličke vodljivosti izračunat kod Almayani – Sen od 4,7*107 do 2,58*109, Breyer od 5,67*10-1 do 2,15, Hazen od 6,87 do 2,44*107, Kozney – Carman od 2,53*101 do 3,37*107, Slitcher od 2,83*101 do 6,36*1022, Terzaghi od 5,27 do 6,35*1013, USBR od 6,33*10-3 do 1,29*10-1. Navedene vrijednosti prikazane su u cm po danu. Određena je i hidraulička vodljivost pomoću softverskog programa Rosetta – Lite, a ona je u rasponu od 18,8 do 35 cm/dan. Tok vode u tlu je simuliran s HYDRUS 1D programom. Najveće količine vode nalaze se u horizontima A, IC, IIC, a nakon toga količina vode počinje opadati. Simulacija potencijalno toksičnih metala prikazuje da se koncentracija smanjuje s povećanjem dana, odnosno potencijalno toksični metali prodiru sve dublje u tlo ispod točke opažanja. S povećanjem dubine dolazi i do smanjenja sorpcije. |
| Abstract (english) | Abstract: The goal of the research is to empirically determine the hydraulic conductivity and simulate the transport of potentially toxic metals in the HYDRUS 1D program. The empirical formula used to determinate hydraulic conductivity is based on the data regarding porous media grain-size composition. The grain-size is the basic and only input parameter for calculation using empirical formulas. Thus, the range of hydraulic conductivity is calculated with Almayani – Sen from 4,7*107 to 2,58*109, Breyer from 5,67*10-1 to 2,15, Hazen from 6,87 to 2,44*107, Kozney – Carman from 2,53*101 to 3,37*107, Slitcher from 2,83*101 to 6,36*1022, Terzaghi from 5,27 to 6,35*1013, USBR from 6,33*10-3 to 1,29*10-1. These values are shown in cm per day. Also, hydraulic conductivity was determined using the Rosetta – Lite software program, and it ranges from 18,8 to 35 cm/day. The water flow in the soil was simulated using the HYDRUS 1D program. Most water is located in layers horizon A, IIC, IIIC, and then the amount of water begins to decline. The simulation of potentially toxic metals shows that the concentration decreases as the number of days increases days, i.e. potentially toxic metals penetrate deeper into the soil beneath our point of observation. The sorption reduces as the depth increase. |
