ROSSpy 0.1.2

Software for predicting the brine concentrations and scaling quantities after RO desalination.

Reverse Osmosis Scaling Software in Python (ROSSpy) offers an open-source API to simulate the reactive transport geochemistry of Reverse Osmosis desalination. ROSSpy essentially translates user specifications of an RO system into PHREEQpy, which is the Python version of PHREEQC. The examples/scaling/scaling_validation directory of the ROSSpy GitHub details the numerous functions and accuracy of ROSSPy via Notebook examples. We encourage users and developers to critique and improve ROSSpy, as an open-source (MIT License) library, through GitHub issues.

The complete documentation is provided by ReadTheDocs.

Installation

The IPHREEQC module must be installed before ROSSpy can be executed, since this is the source of geochemical calculations and data. The appropriate version of IPHREEQC can be installed from the USGS . Linux installation may require addition steps:

wget https://water.usgs.gov/water-resources/software/PHREEQC/iphreeqc-3.7.3-15968.tar.gz
tar -xzvf iphreeqc-3.7.3-15968.tar.gz
cd iphreeqc-3.7.3-15968
./configure
make
make check
sudo make install

Then either use the full path to the shared libray when making an instance of phreeqc_dll.IPhreeqc:

phreeqc = phreeqpy.iphreeqc.phreeqc_dll.IPhreeqc('/full/path/to/libiphreeqc.so')

or copy the shared object into phreeqpy/iphreeqc replacing the existing one, such as:

sudo cp /usr/local/lib/libiphreeqc.so  /path/to/site-packages/phreeqpy/iphreeqc/libiphreeqc.so.0.0.0

ROSSpy per se is then installed in a command prompt, Powershell, Terminal, or Anaconda Command Prompt via pip:

pip install rosspy