New application of brown sea algae as an alternative to phosphorous-containing antiscalant.

Environmental Technology
E KhamisJ M Anwar

Abstract

Over the past decade, green chemistry research has focused on the importance of protecting the environment, especially to align with UN sustainable development goals by avoiding the use of chemicals that are harmful to the environment and society. In this study, an aqueous extract derived from brown sea algae was prepared and its performance as antiscalant was compared to commercial antiscalant (Hydroxy ethylidene, 1-Diphosphonic Acid, HEDP) and evaluated using electrochemical measurements, conductivity and standard NACE test in addition to microscopic examination. It was found that there is a significant inhibition efficiency of brown algae towards the tested scales as HEDP. The obtained extract had the ability to prevent precipitation of calcium sulphate, calcium carbonate, barium sulphate and strontium carbonate with percent inhibition of 100%, 80%, 84% and 75%, respectively. The inhibitory effect of the extract can be attributed to the presence of carboxylate and hydroxyl groups that are adsorbed on the surface sites and disturb the normal crystal growth of the scale. The results of the study will lead to the discovery of further new applications of ecologically, cost-effective, renewable source and benign antiscalant that ...Continue Reading

References

Mar 23, 2007·Bioorganicheskaia khimiia·N M ShevchenkoT N Zviagintseva
Oct 2, 2007·Journal of Colloid and Interface Science·Franca JonesMartin Saunders
Nov 15, 2011·Colloids and Surfaces. B, Biointerfaces·Semra Kırboga, Mualla Oner
Apr 15, 2019·Carbohydrate Polymers·Ruza Gabriela M de A MacedoRosangela de C Balaban

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Citations

Jul 28, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Chijia WangHuaiyuan Wang

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