Adsorptive removal of metformin on specially designed algae-lignocellulosic biochar mix and techno-economic feasibility assessment

Bhowmick, Goldy De; Briones, Rowena M.; Thiele‐Bruhn, Sören; Sen, Ramkrishna; Sarmah, Ajit K.

doi:10.1016/j.envpol.2021.118256

Cited by 31 publications

(6 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was indicative of oxidation processes, giving rise to COOH and C O groups on the surface of BC which were involved in the electrostatic interactions with metformin. 88 This was similar to the results obtained in an earlier work. 89 As mentioned earlier, BC from many other aquatic biomasses has not been extensively explored for the removal of various pharmaceuticals; however, there are a number of microalgae that have been used for the removal of pharmaceuticals including acetaminophen, diclofenac, ibuprofen and ciprofloxacin.…”

Section: Aquatic Biomass-derived Biochar For Removal Of Microplasticssupporting

confidence: 92%

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Verma,

Singh,

Dhanorkar

2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

The Coronavirus disease pandemic over the last three years has shifted the attention of the entire world population from a self‐centred monitory growth to a holistic growth, with health and environment as the central focus. Pharmaceuticals and microplastics have emerged as most prominent environmental contaminants in recent times. Although adsorption is recognized globally as a low cost and effective remediation process, the removal of a variety of pollutants from environmental niche still remains a challenge. This review highlights the use of valorised waste aquatic biomass as an adsorbent for the withdrawal of various emerging pollutants (pharmaceuticals, microplastics and heavy metals). The unwanted invasive aquatic plants can be used as a valuable resource and converted into an ideal precursor and value product for the development of carbon‐based adsorbents that have numerous industrial and environmental applications. There lacks a comprehensive review and analysis on the use of biochar, derived from aquatic biomass, for the extraction of emerging pollutants, especially for microplastics. This distinctive, timely work will aid in the expansion of research on the production of biochar from a waste resource, strengthen their use as adsorbent and help combat the increasing pollution due to various emerging pollutants, including pharmaceuticals and microplastics.This article is protected by copyright. All rights reserved.

show abstract

Section: Aquatic Biomass-derived Biochar For Removal Of Microplasticssupporting

confidence: 92%

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Verma,

Singh,

Dhanorkar

2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…Furthermore, the pK a of carboxylic groups of α-L-guluronic acid and β-D-mannuronic acid in alginate is in the range of 3.4 to 3.9, and metformin has a positive charge at pH <2.97. GO sheets form stable dispersions and more negative charge in the pH range of 4-11.5, [37][38][39] which indicates the GO-Met@Alg bead below pH 3 has a positive charge and makes repulsion with cations that decrease metal sorption. This implied that pH of three up to six is favorable.…”

Section: Effect Of Phmentioning

confidence: 99%

Metformin‐graphene oxide/alginate beads for the removal of toxic lead ions from aqueous media; kinetic and equilibrium studies

Abboud

Mollahosseini

Ghaffarinejad

2022

Env Prog and Sustain Energy

View full text Add to dashboard Cite

In this study, the Met-GO@Alg as a novel adsorbent was composed of metformin (Met), graphene oxide (GO), alginate beads (Alg) for removal of lead ions from aqueous media. The adsorbent material was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) techniques. The effect of solution pH)5(, adsorbent dosage)20 mg(, contact time)90 min(, temperature and co-existing ions were studied and optimized. The Pb 2+ adsorption nature and mechanism were adopted with various isotherms, kinetics, and thermodynamic models. Hence, the adsorption kinetic process fits with the pseudo-second-order model (R 2 > 0.97) with 95% removal efficiency at 90 min. The adsorption isotherm is well fit to the Freundlich model (R 2 > 0.99) with the maximum adsorption capacity of 370 mg. g À1 .Overall, Met-GO@Alg nanocomposite revealed good efficiency, applicability, and five times reusability.

show abstract

“…Among the different PMP pollutants, metformin (MFM), which is taken as a model pollutant in this study, is harmful for human health and the atmosphere . MFM is used as an antihyperglycemic agent, which deals with the subordinate of the blood glucose concentration lacking hypoglycemia. , The removal of these PMP was employed via degradation, physical treatments, biological treatments, coagulation, emulsion membrane, oxidation, ion exchange, electrochemcial oxidation adsorption methods, , etc. Comparatively speaking, adsorption is a single method that accounts for the successful removal of different PMPs.…”

Section: Introductionmentioning

confidence: 99%

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

Balasubramani

Sivarajasekar²,

Sarojini

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Cellulose is a basic material for the manufacture of filters and adsorbent materials, as well as for the removal of contaminants, especially in food, pharma and other industries. The goal of this research is to see how a novel arrangement of biomass resources (hybrid biomass) can be used to improve the characteristics and behavior of microcrystalline cellulose (MCC) produced by the traditional method of acid hydrolysis. Chemical oxidation cum exfoliation was used to synthesize graphene oxide (GO) nanoparticles, which were then composited with microcrystalline cellulose (GOMCC) and used for metformin (MFM) adsorption from an aqueous medium. The GOMCC characterized using particle size distribution, X-ray analysis (XRD), Raman spectra analysis, Fourier transform infrared spectroscopy (FTIR), fieldemission scanning electron microscopy (FESEM) analysis, and transmission electron microscopy (TEM). The GOMCC that had been prepared was mesoporous and had a reasonable surface area (196 m 2 /g), with a pore volume of 0.134 cm 3 /g and pore width of 17.85 nm. Batch-mode adsorption was performed at various temperatures (288, 303, and 318 K), GOMCC amounts (50, 100, and 150 mg), MFM concentrations (30, 50, and 70 mg/L), and pH values (4.5, 6.5, and 8.5) and were investigated with the Box-Behnken statistical design. The machine learning, models�Support Vector Machine (SVM), Gaussian Process Regression (GPR), Regression Trees (TREE), and Ensemble of Regression Trees (Ensemble)�are used to predict the adsorptive removal of MFM onto GOMCC from the BBD design input. Different isotherm equations and various kinetic models were used to assess the sorption data and ideal values were determined using the sum of normalized errors methodology. MFM maximal sorption capacity was investigated to be 132.10 mg/g. The kinetics revealed that the pseudo-first-order model fit the data exactly. MFM sorption was found to be spontaneous (ΔG°) and exothermic (ΔH°) in a thermodynamic analysis. The chemisorption of MFM onto GOMCC was followed by subsequent pore diffusion, which was exothermic and spontaneous. The main mechanisms responsible for the removal of MFM were found to be π−π interactions, alone interactions, sulfur interactions, hydrophobic and hydrogen bonding.

show abstract

Adsorptive removal of metformin on specially designed algae-lignocellulosic biochar mix and techno-economic feasibility assessment

Cited by 31 publications

References 42 publications

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Metformin‐graphene oxide/alginate beads for the removal of toxic lead ions from aqueous media; kinetic and equilibrium studies

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

Contact Info

Product

Resources

About