Influence of static magnetic field on the kinetics of calcium carbonate formation

Myśliwiec, Dawid; Szcześ, Aleksandra; Chibowski, S.

doi:10.1016/j.jiec.2016.01.026

Cited by 13 publications

(3 citation statements)

References 40 publications

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“…The rod-or needle-like structures are typical one of aragonite (Guo et al 2011). Whereas, the spherical or cubic forms of calcium carbonate are typical for vaterite or calcite, respectively (Myśliwiec et al 2016). The analysis of FTIR spectra suggests that the calcium carbonate crystallized in the form of calcite, vaterite or aragonite (Fig.…”

Section: Mechanical Properties Of Nanopapersmentioning

confidence: 98%

“…Abdel-Aal et al (2002) showed that precipitation mechanism of CaCO 3 has three steps: first formation of the amorphous phase, then formation of metastable phase (vaterite at low temperatures, aragonite at high temperatures), and finally transformation of metastable polymorphs into calcite. On the other hand Myśliwiec et al (2016) showed that calcium carbonate crystallization induced by temperature and static magnetic field (here we used both during the cellulose isolation) can from either in metastable form of vaterite (mostly spherical forms) or thermodynamically stable calcite (cubic forms). Additionally in the case of the cellulose fibers or nanofibers presence during calcium carbonate precipitation the crystallization process is influenced by electrostatic interaction between cellulose and CaCO 3 (Lu et al 2017).…”

Section: Mechanical Properties Of Nanopapersmentioning

confidence: 99%

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Effect of ultrasonication on physicochemical properties of apple based nanocellulose-calcium carbonate composites

et al. 2018

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In order to improve optical properties of materials made of nanocellulose and also minimalize costs, small amounts of mineral fillers such as different forms of calcium carbonate are added. In this work nanocellulose was obtained from apple pomace. The precipitated calcium carbonate (PCC) in amount of 3.74 ± 1.36% of a sample dry matter was deposited on cellulose fibers during isolation process. Isolated cellulose was then treated with ultrasonic method in order to obtain apple cellulose nanofibrills (ACNF)/ PCC nanocomposites. Different ultrasonication conditions were applied in order to evaluate how time (0-60 min) and power (0-400 W) influence on the ACNF/PCC nanocomposites properties. Moreover structure, chemical composition, morphology and rheological properties of both cellulose and composites were characterized. Also the mechanical properties of nanopapers made of ACNF/PCC nanocellulose were measured. The nanofibril structure of ultrasound processed cellulose was confirmed. In all cases samples were pseudoplastic fluids with quite low viscosity. The mean hydrodynamic diameter of particle dispersions decreased the most after use of ultrasounds for 60 min and the obtained dispersions were also the most homogeneous. The elastic modulus of obtained nanopapers were 2-3 GPa and tensile strength 60-70 MPa and in general ultrasonication improved their rigidity.

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Section: Mechanical Properties Of Nanopapersmentioning

confidence: 98%

Section: Mechanical Properties Of Nanopapersmentioning

confidence: 99%

Effect of ultrasonication on physicochemical properties of apple based nanocellulose-calcium carbonate composites

et al. 2018

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“…The magnetic field is applied to the crystallization of calcium carbonate, water purification, colloid condensation and precipitation, wastewater treatment, etc. 1 . The application of the magnetic field mainly improves the physical properties of solid-liquid separation by the aggregation of colloidal particles and the biological characteristics by improving the activity of bacteria, to improve the performance of wastewater treatment 2 .…”

mentioning

confidence: 99%

Effects of an external magnetic field on microbial functional genes and metabolism of activated sludge based on metagenomic sequencing

Geng

Chen

et al. 2020

Sci Rep

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This study explored the effect of 70-mT magnetic field on wastewater treatment capacity for activated sludge in long-term laboratory-scale experiments. Metagenomic sequencing were conducted based on Illumina HiSeq 2000 platform after DNA extraction of the activated sludge. Then the effect of the magnetic field on the microbial unigene and metabolic pathways in activated sludge was investigated. As a result, higher pollutant removal was observed at 70 mT, with which the elimination of total nitrogen (TN) was the most effective. Functional genes annotated based on eggNOG database showed that unigenes related to information storage and processing were enhanced by the magnetic field. For CAZy classification, category such as glycosyl transferases was more abundant in the reactor with magnetic field, which has been shown to promote the entire energy supply pathway. Additionally, in the KEGG categories, unigenes related to signaling molecules and interaction were significantly inhibited. Through the enrichment analysis of the nitrogen metabolism pathway, the magnetic field inhibited anabolic nitrate reduction by significantly inhibiting enzymes such as [EC:1.

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The Influence of Rotating Magnetic Field on Biochemical Processing

Drozd

Wasak

Konopacki

et al. 2018

Lecture Notes on Multidisciplinary Industrial Engineering

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Influence of static magnetic field on the kinetics of calcium carbonate formation

Cited by 13 publications

References 40 publications

Effect of ultrasonication on physicochemical properties of apple based nanocellulose-calcium carbonate composites

Effect of ultrasonication on physicochemical properties of apple based nanocellulose-calcium carbonate composites

Effects of an external magnetic field on microbial functional genes and metabolism of activated sludge based on metagenomic sequencing

The Influence of Rotating Magnetic Field on Biochemical Processing

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