Authors: Elnaz Asghari Maryam GholizadehKhajeh Habib AshassiSorkhabi
Publish Date: 2016/08/31
Volume: 25, Issue: 10, Pages: 4230-4238
Abstract
Because of the major limitations in drinking water resources the industries need to use unprocessed water sources for their cooling systems these water resources contain major amount of hardening cations So mineral scales are formed in cooling water systems during the time and cause major problems The use of green antiscaling materials such as carboxylic acids is considered due to their low risks of environmental pollution In the present work the scale inhibition performance of tartaric acid as a green organic material was evaluated Chemical screening tests cathodic and anodic voltammetry measurements and electrochemical impedance spectroscopy EIS field emission scanning electron microscopy FESEM energydispersive xray and xray diffraction were used for the evaluation of the scale inhibition performance The results showed that tartaric acid can prevent calcium carbonate precipitation significantly The hard water solution with 20 mM of tartaric acid indicated the highest scale inhibition efficiency ca 68 The voltammetry EIS and FESEM results verified that tartaric acid can form smooth and homogeneous film on steel surface through formation of FeIIItartrate complexes and retard the local precipitation of calcium carbonate depositsThis project was carried out in “Electrochemistry Research Laboratory” of “University of Tabriz” based on the agreement between the authors and “Iran National Science Foundation INSF” with Grant No of “92003158” Therefore the authors would like to thank “University of Tabriz” and “Iran National Science Foundation INSF” for their supports of this project
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