Synthesis of biodegradable polyelectrolytes for the inhibition of both CaSO4 scales and the corrosion of carbon steel

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2024-09-24 DOI:10.1007/s13762-024-06049-x

A. Ramírez-Estrada, V. Y. Mena-Cervantes, I. Elizalde-Martínez, G. Pineda-Flores, F. A. Aguilar-Aguilar, E. Arreola-Valerio, R. Cabrera-Sierra, R. Hernández-Altamirano

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Abstract

This study presents the synthesis and characterization of two polyelectrolytes derived from itaconic acid and vinyl sulfonic acid sodium salt. These polyelectrolytes were characterized by Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC). The biodegradability of the synthesized polyelectrolytes was assessed according to the ISO-10707 method. It was found that the biodegradation was higher than 30% for both polyelectrolytes, indicating that these compounds are moderately biodegradable. The aim of this work is to study the effect of the synthesized polyelectrolytes on the formation of CaSO₄-scales and the corrosion of AISI─1810 carbon steel. Static precipitation experiments were carried out to investigate the effect of the polyelectrolytes on the precipitation of CaSO₄-scale. The results showed that both polyelectrolytes are effective scale inhibitors under static conditions, with high efficiencies (> 80%) at low concentrations. The polyelectrolyte influence on the corrosion of AISI carbon steel was examined by open circuit potential (OCP), linear polarization resistance (LRP) and potentiodynamic polarization studies. The results showed that the polyelectrolytes provided corrosion inhibition efficiencies ranging from 60 to 90%. Compatibility experiments were carried out to investigate the stability of the synthesized polyelectrolytes in the corrosive media and to observe the influence of these compounds on the inhibition of CaSO₄-scale. The polyelectrolytes were shown to be compatible with the corrosive solution. Furthermore, the results demonstrated that an increase in polyelectrolyte concentration led to enhanced scale inhibition.

Graphical abstract

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生物可降解聚电解质的合成，用于抑制CaSO4结垢和碳钢的腐蚀

本文研究了衣康酸和乙烯基磺酸钠盐两种聚电解质的合成和表征。用傅里叶红外（FTIR）、核磁共振（NMR）和凝胶渗透色谱（GPC）对这些聚电解质进行了表征。根据ISO-10707方法对合成的聚电解质的生物降解性进行了评价。发现这两种聚电解质的生物降解率均高于30%，表明这两种化合物具有中等生物降解性。本工作的目的是研究合成的聚电解质对caso4结垢的形成和AISI─1810碳钢的腐蚀的影响。通过静态沉淀实验研究了聚电解质对caso4水垢沉淀的影响。结果表明，在静态条件下，这两种聚电解质都是有效的阻垢剂，在低浓度下具有较高的阻垢效率（80%）。通过开路电位（OCP）、线性极化电阻（LRP）和动电位极化研究，考察了聚电解质对AISI碳钢腐蚀的影响。结果表明，聚电解质的缓蚀效率为60% ~ 90%。通过相容性实验考察了合成的聚电解质在腐蚀性介质中的稳定性，并观察了这些化合物对caso4阻垢的抑制作用。聚电解质被证明与腐蚀性溶液相容。此外，结果表明，聚电解质浓度的增加导致阻垢作用的增强。图形抽象

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来源期刊

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.