Inhibitory effect of glutamic acid on the scale formation process using electrochemical methods

Karar, Amina; Naamoune, Farid; Kahoul, A.; Belattar, Noureddine

doi:10.1080/09593330.2016.1139629

Cited by 8 publications

(5 citation statements)

References 24 publications

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“…The pH within the electrode increases with the production of OH – , this causes the precipitation of CaCO 3(s) on the surface of stainless steel electrode (Karar et al ., 2016b), according to the following chemical formula:

{Ca}^{2 +} + {HCO}_{3}^{-} + {OH}^{-} \to {CaCO}_{3 (s)} + {normalH}_{2} O

…”

Section: Methodsmentioning

confidence: 99%

Inhibition of nucleation and crystal growth of calcium carbonate in hard waters using Paronychia arabica in an arid desert region

Karar

Henni

Namoune

et al. 2020

Water & Environment J

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The formation of CaCO 3 of groundwater has important implications in the industry. Many conventional scale inhibitors are considered environmentally unfriendly. In this study, we investigate the effect of aqueous extract of Paronychia arabica (PA) as new green antiscalant agents on the precipitation of CaCO 3 in an arid desert region. The antiscaling properties of these extracts towards CaCO3 formation were tested using chronoamperometry (CA), electrochemical impedance spectroscopy (EIS) and Fast Controlled Precipitation methods. Electrochemical and chemical analysis of Mkhadma groundwater shows a high calcium concentration and the deposit is a pure calcite. The nucleation and formation time were identified. At 32°C, a complete scaling inhibition was obtained using a concentration of 150 mg/L of green extract. The scale inhibitor effect was analysed by an optical microscopic examination.

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{Ca}^{2 +} + {HCO}_{3}^{-} + {OH}^{-} \to {CaCO}_{3 (s)} + {normalH}_{2} O

…”

Section: Methodsmentioning

confidence: 99%

Inhibition of nucleation and crystal growth of calcium carbonate in hard waters using Paronychia arabica in an arid desert region

Karar

Henni

Namoune

et al. 2020

Water & Environment J

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“…Sodium gluconate can, however, be used as a stimulating fluid in friendly acid formulas by mixing it with other organic acids (Li, N. et al, 2023). Glutamic acid is a common anti-scaling chemical used for controlling scale accumulation (Karar et al, 2016). Glutamic acid's amino group is protonated (-NH 3 + ), while the carboxyl group is dissociated (COO-) in a dipolar state that may act as both a basic (proton acceptor) and an acid (proton donor) and can function as an amphoteric solution (Li, S. et al, 2003).…”

Section: Exploring Sod Gluconate and Glutamic Acid For Removal Of Scalesmentioning

confidence: 99%

“…In cooling water systems, gluconate and gluconic acid (Figure 2) are recognized to be efficient nontoxic inhibitors for iron and mild steel (Touir, et al, 2008). Glutamic acid (Figure 3) is a typical anti-scaling chemical used to control scale deposition (Karar, et al, 2016). Glutamic acid's amino group is protonated (-NH 3 + ), while the carboxyl group is dissociated (COO-) in a dipolar state that may act as both a basic (proton acceptor) and an acid (proton donor) and can function as an amphoteric solution ( Li, S. et al, 2003).…”

mentioning

confidence: 99%

Descaling treatment of sugarcane Evaporative tubes using Organic acids solutions

El-Nahas,

Kodari,

Hamam

et al. 2024

Aswan University Journal of Environmental Studies

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Scales are mechanically removed from sugar evaporators' pipes and equipment. Although effective, this method is usually costly, difficult to access deposits in crevices, and risks causing equipment damage. Chemical cleaning, on the other hand, is a more effective, trustworthy, and time-efficient alternative for eliminating scale. A solution of caustic soda (10-25%) is the most used reagent in Egypt to clean the evaporative tubes used in sugar processes. The goal of this study was to provide a novel green solution that could be utilized in sugar factories to remove scale from evaporative bodies and reduce the environmental impact of NaOH. Consequently, glutamic acid and sodium gluconate were both explored as organic acids for scales dissolution. In all types of evaporator bodies, glutamic acid has a significantly better removal efficacy of up to 83%, while sodium gluconate gave a removal rate of up to 40%. According to EDX and XRD analysis, the main scales content in the sugar factory was calcium sulphate due to the sulphitation method utilized in the clarification operations. The fourth evaporator body is the most difficult because to the high quantity of Si contained in the scale structure. The findings of this study will help the industry sector choose precise thinning techniques for the use of chemical chelating agents for scale removal.

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“…) is the degree of surface coverage calculated from PDP measurements, and Kads is the adsorption equilibrium constant. The results of the PDP test were introduced into Equation ( 6) to calculate the adsorption equilibrium constant [17].…”

Section: Adsorption Isothermmentioning

confidence: 99%

Study on the inhibitory effect of cystine, cysteine and glutamate as inhibitors on X100 pipeline steel in 1 M HCl

Zhang

Sun

et al. 2023

Preprint

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Metal corrosion can cause massive economic losses and many safety hazards; thus, metal corrosion inhibition has been a major research direction worldwide. Among the many methods to stop metal corrosion, the addition of corrosion inhibitors is a common method. The use of amino acids as metal corrosion inhibitors not only has the advantage of being economical and efficient but also meets the long-term concept of being environmentally friendly. In this study, the effect on the corrosion behavior of a mild steel (X100 pipeline steel) in 1 M HCl containing the same concentration of the amino groups of cystine (Cys-Cys), cysteine (Cys) and glutamate (Glu) was investigated via density functional theory (DFT) and various characterization methods. These methods include the weightlessness method, electrochemical tests, scanning electron microscopy (SEM), and the contact angle test. The results show that the inhibition efficiency increased with increasing inhibitor concentration; Cys-Cys showed the best inhibition and Glu showed the poorest inhibition for X100 pipeline steel at the same amino group concentration. Furthermore, the results obtained from various characterization methods were generally consistent.

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Inhibitory effect of glutamic acid on the scale formation process using electrochemical methods

Cited by 8 publications

References 24 publications

Inhibition of nucleation and crystal growth of calcium carbonate in hard waters using Paronychia arabica in an arid desert region

Inhibition of nucleation and crystal growth of calcium carbonate in hard waters using Paronychia arabica in an arid desert region

Descaling treatment of sugarcane Evaporative tubes using Organic acids solutions

Study on the inhibitory effect of cystine, cysteine and glutamate as inhibitors on X100 pipeline steel in 1 M HCl

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