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 Nonhlanhla Kalebaila 
Stasoft V Program for softening and stabilisation of municipal waters

The Water Research Commission (WRC) is continually developing innovative software tools to assist municipalities, water boards and industry chemists, engineers and water treatment plant operators with improvement techniques needed for processing drinking water.

Past and recent studies have shown that it is apparent that for a significant proportion of municipalities, sustained provision of service and quality are under threat due to failing infrastructure.  Issues of capacity and suitably qualified personnel and enforcement of legislation are amongst the compelling reasons compelling process controllers to stay abreast of the water treatment game.  Upgrades made recently to the Stasoft water conditioning program have compelled the WRC to hold two workshops, one in Johannesburg on 6 November and one in Cape Town on 19 November, to disseminate the tool to officials working in aqueous environments.

For several years, the WRC has been funding the development of innovative software solutions to aid improvements in water treatment industry.  One such software is the Stasoft program that is now in its fifth version.  The Stasoft software was initially developed under the leadership of the late Prof Richard E Loewenthal of the University of Cape Town during the late 1980’s to address the need for rapid solutions in solving water conditioning problems in aqueous media.  The latest upgrade to version 5 was developed by Mr Francois Friend from Softchem, who also wrote version III under the leadership of Prof Loewenthal.

Understanding the Stasoft program

Stasoft is a user-friendly interactive computer program to characterise a water; to determine chemical dosages to soften and/ stabilise the water for municipal use; to evaluate the response of underground waters when pumped to the surface; and to determine the characteristics of blends of two or more waters with different characteristics.  Through WRC funding the software has now been developed and recompiled for use on new windows operating platforms (Windows 7 and higher).  The program has the same calculation functions that were available in Stasoft III, with enhanced menu and help facilities. Read full article.

Understand how to use the software by following the video demonstration on the link below. https://www.youtube.com/watch?v=Xhq5dlULLGw and visit or Resources and Tools/ eTools Free Water Software page to download the software.

Read WaterSA paper published in 1988.

Any enquiries regarding the Stasoft V program can be directed to the developer Mr Francois Friend via either email at francois@softchem.co.za, or cell at +27 (0) 82 554 8900.


Demonstration of Stasoft V in Cape Town
Mr Francois Friend,  Softchem
Demonstration of Stasoft V in Cape Town
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