Puffing as a totally green method for monitoring of hot/cold lime softening process

Hot/cold lime softening process (LSP) is an established process for water conditioning. LSP is currently monitored with various chemical analyses such as measuring simple and total alkalinities, pH, and hardness of softened water. The current monitoring is a labor-intensive task, which consumes vari...

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Bibliographic Details
Published in:Desalination and water treatment 2016-03, Vol.57 (14), p.6224-6229
Main Authors: Amiri, M.C., Jafari, P., Amiri, S.
Format: Article
Language:English
Subjects:
Beverage industry
Chemical industry wastewaters
Chemical method
Chemical wastes
Chemical wastewater
Clean technology
Cleaning
Consumption
Lime
Lime softening process
Monitoring
Monitoring methods
Puffing method
Reduction
Resistivity
Softening
Totally green method
Water conditioning
Water treatment
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Summary:Hot/cold lime softening process (LSP) is an established process for water conditioning. LSP is currently monitored with various chemical analyses such as measuring simple and total alkalinities, pH, and hardness of softened water. The current monitoring is a labor-intensive task, which consumes various chemicals and generates a considerable amount of chemical wastewater during daily routine tests. Experiences in many industrial softeners show that the results of the traditional chemical method are not often conclusive. In this work, the weakness of the current chemical method for LSP monitoring has been experimentally verified and the effectiveness of an eco-friendly clean technology, based on puffing, has been introduced. The new method functions via comparing the measured electrical conductivities of softened water before and after puffing. As a totally green method, it has several advantages such as lack of need for any chemical reagent, easy and reliable testing, significant reduction in test costs, and chemical wastes compared to the conventional chemical method.
ISSN:1944-3986
1944-3994
1944-3986
DOI:10.1080/19443994.2015.1004597