نتایج جستجو برای: phreeqc

تعداد نتایج: 182  

Journal: :Journal of environmental sciences 2016
Lei Yang Jiangtao He Yumei Liu Jian Wang Lie Jiang Guangcai Wang

To reveal the basic characteristics and controlling factors of water quality change in the project Wenyu to Chaobai reclaimed water diversion, the water quality in the study area was monitored for one year at seven monitoring sites. Inverse geochemical models of the statistical groups were developed using PHREEQC to elucidate the hydrochemistry characteristics of reclaimed water and the factors...

2016
Bo Liu Reza Malekian Jinpeng Xu

Karst collapse columns, as a potential water passageway for mine water inrush, are always considered a critical problem for the development of deep mining techniques. This study aims to identify the mixing process of groundwater deriving two different limestone karst-fissure aquifer systems. Based on analysis of mining groundwater hydrogeochemical properties, hydraulic connection between the ka...

2004
M. S. Phanikumar Jennifer T. McGuire

[1] This paper reports the development and application of a three-dimensional multi-component reactive transport model (BGTK) to simulate a wide range of biogeochemical processes in subsurface environments. The model can handle both equilibrium and kinetically controlled reactions and is based on the well tested modular models RT3D [Clement et al., 1998] and PHREEQC-2 [Parkhurst and Appelo, 199...

Journal: :IOP conference series 2022

Abstract Zinc is frequently reacting with inorganic species in water to form zinc species. Thus, the chemical speciation of aquatic environment has become a significant concern nowadays due its adverse effect on humans and potential toxicity system. In this study, investigate interaction between dissolved hydro-chemical factors estimate Zn form, samples river were collected spatially from Umeda...

Journal: :Journal of the Southern African Institute of Mining and Metallurgy 2018

2016
Damiano Genovese Marco Montalti Fermín Otálora Jaime Gómez-Morales María Sancho-Tomás Giuseppe Falini Juan Manuel García-Ruiz

The molecular structure of the units that get incorporated into the nuclei of the crystalline phase and sustain their growth is a fundamental issue in the pathway from a supersaturated solution to the formation of crystals. Using a fluorescent dye we have recorded the variation of the pH value in time along a gel where CaCl2 and NaHCO3 counter-diffuse to crystallize CaCO3. The same pH-space-tim...

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