Cellulose Based Electrospun Nanofilters: Perspectives On Tannery Effluent Waste Water Treatment

Abstract Development of nanofilters with the capability to remove toxic metal ions from effluent wastewater will be of immense help to the leather industry. In this study, fibrous nanofilter (FNF) was prepared using micro cellulosic fiber (MCF) and tea leaves microparticles (TLM) blended in poly (vinyl) alcohol (PVA). FNF was analysed for its efficacy to remove hazardous metals from tannery effluent wastewater. The FNF had promising traits of tensile strength (19.24+0.05 Mpa), elongation at break (22.31+0.12 %), flexibility (10.88+0.05 %), water absorption (37.86+0.14 %) and desorption (32.54+0.33 %). The metal adsorption studies clearly reflected the removal of toxic Cr (VI) ions from the effluent water by FNF. The study establishes an economically feasible and highly efficient way to remove hazardous metal ions from effluent wastewater.

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Cellulose based electrospun nanofilters: perspectives on tannery effluent waste water treatment

Cellulose ◽

10.1007/s10570-022-04420-0 ◽

2022 ◽

Author(s):

Senthil Rethinam ◽

Serdar Batıkan Kavukcu ◽

Thiagarajan Hemalatha ◽

A. Wilson Aruni ◽

Aylin Sendemir ◽

...

Keyword(s):

Waste Water ◽

Water Treatment ◽

Waste Water Treatment ◽

Tannery Effluent ◽

Effluent Waste

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Stabilization of Hazardous Materials into Ferrites

Water Science & Technology ◽

10.2166/wst.1991.0438 ◽

1991 ◽

Vol 23 (1-3) ◽

pp. 399-404 ◽

Cited By ~ 12

Author(s):

Y. Tamaura ◽

P. Q. Tu ◽

S. Rojarayanont ◽

H. Abe

Keyword(s):

Aqueous Solution ◽

Heavy Metal ◽

Metal Ions ◽

Present Method ◽

Hazardous Materials ◽

Precipitation Process ◽

Waste Waters ◽

Formation Reaction ◽

Coating Method ◽

Hazardous Metal

Stabilization of the hazardous materials by the Fe3O4-coating method was studied. In the ferrite-formation reaction in the aqueous solution, the adsorption of the metal ions and the oxidation of the adsorbed Fe(II) ions are repeated on the surface of the ferrite particles. This reaction was adopted to the coating of the hazardous materials with the Fe3O4(or ferrite). By repeating the two steps of l)the addition of the Fe(II) aqueous solution into the suspension of the hazardous materials, and 2)the oxidation by passing air through the reaction suspension, with the Fe3O4 layer, we could coat the surfaces of the hazardous materials, such as the heavy metal sludge from the neutralization-precipitation process, the CaF2 precipitates in the treatment of the waste waters containing fluoride ion along with hazardous metal ions, and the soils containing Cd(II) ion. These Fe3O4-coated hazardous materials are very stable and no heavy metal ions are leached under the normal environmental conditions. The ferrite sludges formed in the “Ferrite Process” were highly stabilized by the present method, and by the heat-treatment.

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Colorimetric sensing approaches based on silver nanoparticles aggregation for determination of toxic metal ions in water sample: a review

International Journal of Environmental & Analytical Chemistry ◽

10.1080/03067319.2021.1873315 ◽

2021 ◽

pp. 1-16

Author(s):

Rajat Singh ◽

Rahul Mehra ◽

Ankita Walia ◽

Simmy Gupta ◽

Prince Chawla ◽

...

Keyword(s):

Silver Nanoparticles ◽

Metal Ions ◽

Water Sample ◽

Toxic Metal ◽

Colorimetric Sensing ◽

Toxic Metal Ions

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The facile soft-template-morphology-controlled (STMC) synthesis of ZnIn2S4 nanostructures and their excellent morphology-dependent adsorption properties

Journal of Materials Chemistry A ◽

10.1039/c9ta11800d ◽

2020 ◽

Vol 8 (4) ◽

pp. 1986-2000 ◽

Cited By ~ 3

Author(s):

Afaq Ahmad Khan ◽

Arif Chowdhury ◽

Sunita Kumari ◽

Sahid Hussain

Keyword(s):

Metal Ions ◽

Toxic Metal ◽

Adsorption Properties ◽

Organic Dye ◽

Soft Template ◽

Toxic Metal Ions ◽

Controlled Morphology

ZnIn2S4 nanostructures were fabricated with controlled morphology and utilized for the adsorption of an organic dye and toxic metal ions.

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Tuning the sensitivity towards mercury via cooperative binding to d-fructose: dual fluorescent chemosensor based on 1,8-naphthyridine-boronic acid derivative

RSC Advances ◽

10.1039/d1ra02122b ◽

2021 ◽

Vol 11 (24) ◽

pp. 14862-14870

Author(s):

Marina Rajadurai ◽

E. Ramanjaneya Reddy

Keyword(s):

Metal Ions ◽

Acid Derivative ◽

Boronic Acid ◽

Toxic Metal ◽

Fluorescent Chemosensor ◽

Cooperative Binding ◽

Toxic Metal Ions

This new dual d-fructose–mercury chemosensor is the first example of utilizing boronic acid–diol complexation for enhancement of the sensor's sensitivity towards toxic metal ions.

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