Performance of novel sericin doped reduced graphene oxide membrane for FO based membrane crystallization application

Deka, Priyamjeet; Verma, Vishal Kumar; Chandrasekaran, Arunkumar; Neog, Arindom Bikash; Bardhan, Ananya; Raidongia, Kalyan; Subbiah, Senthilmurugan

doi:10.1016/j.memsci.2022.120884

Cited by 9 publications

(2 citation statements)

References 38 publications

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“…The cleaning process can be either physical/chemicalbased. As per experimental results reported in a previous study, 32,33 the membrane could be cleaned effectively by flushing and osmotic backwashing. However, in the case of irreversible fouling due to organic biofouling, membrane cleaning by chemicals is also found to be very effective.…”

Section: Implementation Of Seawater and Reject Brine As A Potential D...supporting

confidence: 73%

Modeling and Experimental Validation for the Preparation of Concentrated Tea Extract Using a Forward Osmosis Process Using a Food-Grade Inorganic Draw Solute

Bardhan

Subbiah

Mohanty

2023

Ind. Eng. Chem. Res.

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In this study, a one-dimensional mathematical model was developed for the concentration of tea extract using a forward osmosis (FO) process. The membrane transport parameters were estimated by minimizing the error between the model output and the experimental results. The model equations were solved to predict the FO performance within allowable error limits. Further, a series of process flow sheet simulation studies were performed to investigate the effect of different operating conditions on the overall FO performance. Based on the simulation results, a multicriteria optimization was developed to attain the maximum permeate and minimum specific reverse solute flux (SRSF). Using the best-performing process flow sheet model, the feasibility of seawater and high-concentration reject brine as a draw solution was also investigated for the concentration of tea extract. The high-concentration reject brine (105.17 g L–1) can result in rapid dewatering with minimal SRSF (0.14 g L–1) along with simultaneous seawater dilution (81.38 g L–1).

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Section: Implementation Of Seawater and Reject Brine As A Potential D...supporting

confidence: 73%

Modeling and Experimental Validation for the Preparation of Concentrated Tea Extract Using a Forward Osmosis Process Using a Food-Grade Inorganic Draw Solute

Bardhan

Subbiah

Mohanty

2023

Ind. Eng. Chem. Res.

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“…More recently, a sericin-doped reduced graphene oxide membrane was employed for forward osmosisbased recovery of rifaximin [22]. To the best of our knowledge, the adsorption-based elimination of Rifaximin utilizing nanocomposites has not been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Removal of Rifaximin from Pharmaceutical Wastewater: NiFe2O4/GO Nanocomposite as an Efficient Adsorbent

Malmir

Shemirani

2023

Preprint

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Rifaximin is a widely utilized antibiotic in health care centers and hospitals. However, its elimination from wastewater, which prevents health damages, has not been reported so far. In this work, for the first time, a nanocomposite, NiFe2O4/GO, was employed as an adsorbent to remove Rifaximin from an aqueous solution. After synthesis, the XRD, FT-IR, SEM, and VSM techniques were used to confirm the structure of NiFe2O4/GO. We applied response surface methodology to explore the effects of the NiFe2O4/GO and Rifaximin concentrations, as well as solution pH and contact time, on the process performance. We obtained a high coefficient of determination (R2 = 0.994) and satisfactory predictions from the regression model. We obtained the most favorable adsorption rate (93.39%) at a pH of 4.07, a contact time of 5.5 minutes, an adsorbent concentration of 3147.57 mg/L, and a Rifaximin concentration of 68.50 mg/L. The isotherm studies revealed that the adsorption obeys the Freundlich isotherm with a maximum adsorption capacity of 30.12 mg/g for NiFe2O4/GO at 30°C. Thanks to the calculated thermodynamic parameters, it is declared that the process is spontaneous, and the formation of hydrogen bonds and Van der Waals interactions are the dominant interaction terms between the NiFe2O4/GO and Rifaximin. Moreover, the composite maintained an 85.45% removal rate after 4 cycles of regeneration. A removal rate of 89.45% was obtained for effluent from a local pharmaceutical company, representing good efficiency of the adsorbent. In conclusion, NiFe2O4/GO is shown to be a suitable adsorbent for the elimination of Rifaximin from wastewater.

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Recovering electrical energy from forward osmosis process through amorphous silicon oxide crosslinked vanadium pentoxide-reduced graphene oxide membrane

Deka,

Roy,

Jyoti Konch

et al. 2023

Chemical Engineering Journal

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Performance of novel sericin doped reduced graphene oxide membrane for FO based membrane crystallization application

Cited by 9 publications

References 38 publications

Modeling and Experimental Validation for the Preparation of Concentrated Tea Extract Using a Forward Osmosis Process Using a Food-Grade Inorganic Draw Solute

Modeling and Experimental Validation for the Preparation of Concentrated Tea Extract Using a Forward Osmosis Process Using a Food-Grade Inorganic Draw Solute

Removal of Rifaximin from Pharmaceutical Wastewater: NiFe2O4/GO Nanocomposite as an Efficient Adsorbent

Recovering electrical energy from forward osmosis process through amorphous silicon oxide crosslinked vanadium pentoxide-reduced graphene oxide membrane

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