Immobilization of bakers yeast on jute fabric through adhesion using polyethylenimine: application in an annular column reactor for the inversion of sucrose

A mesoporous silica was synthesized by annealing (3-Aminopropyl) triethoxysilane grafted chitosan at 800˚C. The mesoporous silica was characterized by the XRD (X-ray diffraction) analysis. The BET specific surface area and pore size of silica was found to be 178.42 m2/g and 4.13 nm. The mesoporous silica was then employed for the efficient remediation of aqueous solutions contaminated with Cu(II) under batch and column reactor operations. The mesoporous silica showed extremely high per cent removal of Cu(II) at wide pH range i.e., pH ~2.0 to 7.0. Relatively a fast uptake of Cu(II) was occurred and high percentage removal was obtained at initial concentrations studied from 1.0 to 15.0 mg/L. The equilibrium state sorption data were utilized for the Langmuir and Freundlich adsorption isotherm studies. Moreover, the effect of an increase in background electrolyte concentrations from 0.0001 to 0.1 mol/L NaNO3 was assessed for the uptake of Cu(II) by mesoporous silica. The equilibrium sorption was achieved within 240 min of contact and the kinetic data is best fitted to the pseudo-second-order and fractal like pseudo-second-order kinetic models. In addition, the mesoporous silica was used for dynamic studies under column reactor operations. The breakthrough curve was then used for the non-linear fitting of the Thomas equation and the loading capacity of the column for Cu(II) was estimated.

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Effective removal of Cd2+, Zn2+ by immobilizing the non-absorbent active catalyst by packed bed column reactor for industrial wastewater treatment

Chemosphere ◽

10.1016/j.chemosphere.2021.130230 ◽

2021 ◽

pp. 130230

Author(s):

Sandhanasamy Devanesan ◽

Mohamad S. AlSalhi

Keyword(s):

Wastewater Treatment ◽

Industrial Wastewater ◽

Active Catalyst ◽

Packed Bed ◽

Packed Bed Column ◽

Industrial Wastewater Treatment ◽

Column Reactor ◽

Effective Removal

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Thermal and breathability management of microencapsulated phase change material (MPCM) incorporated jute fabric

Journal of Engineered Fibers and Fabrics ◽

10.1177/15589250211029564 ◽

2021 ◽

Vol 16 ◽

pp. 155892502110295

Author(s):

Abdus Shahid ◽

Solaiman Miah ◽

Abdur Rahim

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Thermal Fluctuation ◽

Water Repellency ◽

Air Permeability ◽

Jute Fabric ◽

Moisture Management ◽

Microencapsulated Phase Change Material ◽

Fabric Surface ◽

Change Material

Jute bags are widely used to carry food grains and other materials that may be prone to quality deterioration due to thermal fluctuation. Thermal and moisture properties play a significant role in the packaging materials in the form of a container. This study deals with the effect of microencapsulated phase change material (MPCM) with hydrophobic binder on thermal and moisture management properties of jute fabric. Jute fabric was treated with MPCM by pad-dry-cure method. The treated sample was characterized by thermogravimetric analysis (TGA), differential scanning colorimeter (DSC), scanning electron microscope (SEM), moisture management tester (MMT), and air permeability tester. The results revealed that MPCM treated jute fabric shows greater thermal stability and heat absorption ability of 10.58 J/g while changing from solid to liquid phase. The SEM image ensures even distribution of MPCMs on fabric surface and surface roughness was also observed using image processing software. The air permeability was found to decrease whereas the water repellency enhanced in the developed sample.

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Synthetic glass and jute fabric reinforced soy-based biocomposites: Development and characterization

Polymers and Polymer Composites ◽

10.1177/09673911211020609 ◽

2021 ◽

pp. 096739112110206

Author(s):

Ajaya Kumar Behera ◽

Chirasmayee Mohanty ◽

Nigamananda Das

Keyword(s):

Hybrid Composites ◽

Hydrolytic Stability ◽

Glass Fabric ◽

Soil Burial ◽

Jute Fabric ◽

Reinforced Composite ◽

Original Weight ◽

Fabric Composites ◽

Biodegradation Study ◽

Burial Condition

In this work, both glass fabric and jute fabric reinforced nanoclay modified soy matrix-based composites were developed and characterized. Glass fabric (60 wt.%) reinforced composite showed maximum tensile strength of 70.2 MPa and thermal stability up to 202°C, which are 82.8% and 12.2% higher than those observed with corresponding jute composite. Water absorption and contact angle values of glass-soy specimens were tested, and found composites are water stable. Biodegradation study of composites under soil burial condition revealed that glass-soy composite with 40 wt.% glass fabric lost maximum 32.6% of its original weight after 60 days of degradation. The developed glass fabric-soy hybrid composites with reasonable mechanical, thermal, and hydrolytic stability can be used in different sectors as an alternative to the nondegradable thermoplastic reinforced glass fabric composites.

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