Effects of Static Magnetic Field on Electrolyte Solutions under Kinetic Condition

Szcześ, Aleksandra; Chibowski, Emil; Hołysz, Lucyna; Rafalski, Pawel

doi:10.1021/jp201966d

Cited by 23 publications

(14 citation statements)

References 24 publications

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“…Studies additionally have verified the efficiency of applying the CMF on the biological and enzymatic activity of microorganisms responsible for processes of wastewater treatment [3]. Aarthi et al demonstrated Flavobacterium species' pretreatment through sinusoidal MF seems to result in additional effective paper mill effluents degradation.…”

Section: Introductionmentioning

confidence: 98%

“…It has been established that exposure of aqueous salt solutions to the magnetic field (MF) causes crystallization of calcium forms into aragonite and vaterite. Aragonite and vaterite do not trigger scale deposition on walls of the fitting but in the complete volume of water, and the suspension existence formed is devoid of cementing properties [1][2][3].It appears, however, that procedures of magnetic treatment of fluids may be exploited in a profoundly broader scale, because with suitably selected parameters the method uses a progressive effect on various other properties of a fluid including anaerobic sludge's and wastewaters.…”

Section: Introductionmentioning

confidence: 99%

“…Both the distilled and tap water displayed multi extreme changes in pH value. [1,[3][4][5] and the phenomenon have been initiated to employ to municipal wastewaters [6,7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study on the Improved Biogas Generation Through Magnetic Field Modified Anaerobic Digestion

Haritwal¹,

Mohan²,

Chaudhary³

et al. 2015

IJERT

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The effect of the magnetic field (MF) on the effectiveness of biogas generation was studied and it was observed that the increased intensity of magnetic field resulted in an increase in the fermentation process. A significant increase in the methane product was recorded when the medium was exposed to the magnetic field of 0.42 T. In the magnetic field digester for the first three days (lag phase) the production of the biogas was slow which was increased in 4 th to 6 th days as compared to control. 4.8 Ltr. gas production was recorded in MFF as compare to 3.4 Ltr. in the control on the 6 th day of the experiment. A decrease in pH was observed in 1 st few days of the digestion. The value of pH remains within the range of 7 to 7.3 while in control it was fluctuated between 6.4 to 7.3. NH3-N was reduced to 87% which was 20% higher than the control. The total solid and volatile solid were reduced to 59% and 57% in MFF while in control they were reduced only 46% and 40% respectively. The content of suspended matter in slurry was reduced by 26.1% and the effectiveness of COD removal was increased as compare to control.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on the Improved Biogas Generation Through Magnetic Field Modified Anaerobic Digestion

Haritwal¹,

Mohan²,

Chaudhary³

et al. 2015

IJERT

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show abstract

“…Furthermore, the types and quantity of soluble substances within the liquid phase control the responsiveness of these solutions to an external MF . An external MF can induce a significant change in the microscopic properties of the exposed aqueous solutions . Otsuka and Ozeki have reported that strong MFs acting on pure distilled water under vacuum did not change its properties.…”

Section: Introductionmentioning

confidence: 99%

Performance of erythorbic acid as an oxygen scavenger in salted fresh and degraded monoethylene glycol under a magnetic memory effect

Helal

Iglauer

Gubner

et al. 2019

Asia-Pacific J Chem Eng

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Studies show that erythorbic acid is an effective oxygen scavenger in the food industry, thereby suggesting its potential for use in monoethylene glycol (MEG) regeneration systems. However, its performance under magnetic memory effects has not been studied. This study was conducted with 85-vol.% fresh MEG (F-MEG) and degraded MEG (D-MEG) solutions, preadjusted to pH 9.0 and pretreated with a magnetic field (MF). Two oxygen concentrations,~7,000 and~1,000 ppb, high-salinity concentrations (HF-MEG and HD-MEG), and organic acids were also employed. The applied MF strength, generated by a cylindrical permanent magnet, was~0.65 T.The erythorbic acid scavenging performance was enhanced upon exposure of the HF-MEG solutions to an MF. Conversely, the magnetized salt-free D-MEG solutions displayed a lower scavenging performance than the nonmagnetized solutions: Oxygen removal was more effective in the D-MEG solutions than in the HF-MEG solutions, regardless of magnetization, due to formic acid formation during the thermal oxidization process. Furthermore, the magnetized HF-MEG solutions exhibited a progressive increase in pH over time, whereas the nonexposed and D-MEG solutions presented different responses. Iron ions, acting as metal catalysts, also affected the oxygen scavenging performance in the D-MEG tests. The results suggest that the erythorbic acid scavenging performance can be improved by promoting the forward reaction using an MF. In addition, in the presence of erythorbic acid and only under specific conditions, formic acid can be used as secondary oxygen scavenger in oil and gas industry. Stable alkaline conditions are also necessary to achieve better scavenging performance. These results can be attributed to the influence of the MF on the spin state mechanism, given that the electron spin dynamics are affected by the Zeeman effect.

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“…This experimental result is in line with the findings of Hasaani, Hadi and Rasheed[51] who observed a similar reduction in electrical conductivity measurement in calcium-bicarbonate solution following exposure to a magnetic field. Furthermore, whilst evaluating the effect of magnetic field exposure on scale formation, Szczes, Chibowski, Hołysz and Rafalski[52], Holysz, Szczes and Chibowski[53] and Marcus[54] concluded that the hydration shell thickness of the bicarbonate and calcium ions are subject to manipulation by magnetic fields leading to changes in electrical conductivity measurement. Overall, the exposure of the ions to the magnetic field has increased the hydration shell thickness of the bicarbonate ions causing the reduced electrical conductivity measurements experienced within this test.…”

mentioning

confidence: 99%

Influence of magnetic fields on calcium carbonate scaling in aqueous solutions at 150 °C and 1 bar

Helal

Soames

Gubner

et al. 2018

Journal of Colloid and Interface Science

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The experiments performed as a part of this study were conducted to evaluate the effect of magnetic field treatment upon the scale forming tendency of brine solution composed primarily of calcium bicarbonate ions. The reported results were generated using a Dynamic Scale Loop system with the brine solution exposed to a magnetic field generated by a 6480 Gauss magnet of grade N45SH in a diametrical orientation for 2.5s. Following magnetic exposure, the brine solution was exposed to an elevated temperature 150°C at 1bar to promote the formation of scale within a capillary tube. The extent of scaling was measured by recording the differential pressure across the tube as scaling proceeded. Three important conclusions regarding the effect of magnetic field treatment upon scale formation in calcium bicarbonate solutions were reached. Firstly, the ratio of calcium to bicarbonate plays a key role in determining how magnetic fields influence scale formation, whether promoting or inhibiting it. Solutions containing high concentrations of the bicarbonate, or equal concentrations of the bicarbonate and calcium species showed inhibited scale formation following magnetic exposure. Secondly, the electrical conductivity of the calcium carbonate solution was noticeably impacted by the exposure to the magnetic field through manipulation of the ionic hydration shell and may also provide a measure of the extent of scale formation. Finally, the application of magnetic field treatment for scale inhibition may provide an alternative eco-friendly scale inhibition strategy in place of traditional chemical scale inhibitors.

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Effects of Static Magnetic Field on Electrolyte Solutions under Kinetic Condition

Cited by 23 publications

References 24 publications

Study on the Improved Biogas Generation Through Magnetic Field Modified Anaerobic Digestion

Study on the Improved Biogas Generation Through Magnetic Field Modified Anaerobic Digestion

Performance of erythorbic acid as an oxygen scavenger in salted fresh and degraded monoethylene glycol under a magnetic memory effect

Influence of magnetic fields on calcium carbonate scaling in aqueous solutions at 150 °C and 1 bar

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