Sustainable Adsorption Method for the Remediation of Crystal Violet Dye Using Nutraceutical Industrial Fenugreek Seed Spent

Nutraceutical industrial fenugreek seed spent (NIFGS), a relatively low-cost material abundantly available with little toxicity is used in crystal violet (CV) dye remediation from aqueous media and reported in the present study. To access the adsorption capacity, the factors affecting it are kinetics and the equilibrium thermodynamics. All the experiments were designed at approximately pH 7. The adsorption isotherm model proposed by Langmuir fits better than the Freundlich isotherm model. Kinetic studies data confirm the pseudo-second order model. It is evident from thermodynamic parameter values that the process of adsorption is endothermic, physical and dynamic. The process optimization of independent variables that influence adsorption was carried out using response surface methodology (RSM) through bi-level fractional factorial experimental design (FEED). The analysis of variance (ANOVA) was implemented to investigate the combined effect of parameters influencing adsorption. The possibilities of using dye-adsorbed NIFGS (“sludge”) for the fabrication of the composites using plastic waste are suggested.

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Sustainable adsorption method for the remediation of malachite green dye using nutraceutical industrial fenugreek seed spent

Biomass Conversion and Biorefinery ◽

10.1007/s13399-021-01827-w ◽

2021 ◽

Author(s):

Syed Noeman Taqui ◽

Mohan C. S. ◽

Bibi Ahmadi Khatoon ◽

Manzoore Elahi M. Soudagar ◽

T. M. Yunus Khan ◽

...

Keyword(s):

Malachite Green ◽

Low Cost ◽

Aqueous Media ◽

Freundlich Isotherm ◽

Study Data ◽

Isotherm Model ◽

Adsorption Method ◽

Fenugreek Seed ◽

Malachite Green Dye ◽

Pseudo Second Order

AbstractNutraceutical industrial fenugreek seed spent (NIFGS), a relatively low-cost material abundantly available with nearly negligible toxicity for the bioremediation of malachite green (MG) dye from aqueous media, is reported. Studies on the various parameters affecting the adsorption capacity of NIFGS were carried out to evaluate the kinetics and the equilibrium thermodynamics. All the experiments were designed at about pH 7. The adsorption isotherm model proposed by Langmuir fits better than the Freundlich isotherm model. Kinetic study data confirms the viability of pseudo-second-order model. Calculated thermodynamic factors suggest that the adsorption phenomenon is endothermic, almost instantaneous, and physical in nature.

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Adsorption Method for the Remediation of Brilliant Green Dye Using Halloysite Nanotube: Isotherm, Kinetic and Modeling Studies

Applied Sciences ◽

10.3390/app11178088 ◽

2021 ◽

Vol 11 (17) ◽

pp. 8088 ◽

Cited By ~ 1

Author(s):

Shareefraza J. Ukkund ◽

Prasad Puthiyillam ◽

Hashim M. Alshehri ◽

Marjan Goodarzi ◽

Syed Noeman Taqui ◽

...

Keyword(s):

Brilliant Green ◽

Low Cost ◽

Aqueous Media ◽

Kinetic Studies ◽

Fractional Factorial ◽

Isotherm Models ◽

Adsorption Method ◽

Halloysite Nanotube ◽

Factors Affecting ◽

The Impact

The first-ever use of halloysite nanotube (HNT), a relatively low-cost nanomaterial abundantly available with minor toxicity for removing brilliant green dye from aqueous media, is reported. The factors affecting adsorption were studied by assessing the adsorption capacity, kinetics, and equilibrium thermodynamic properties. All the experiments were designed at a pH level of around 7. The Redlich-Peterson isotherm model fits best amongst the nine isotherm models studied. The kinetic studies data confirmed a pseudo model of the second order. Robotic investigations propose a rate-controlling advance being overwhelmed by intraparticle dispersion. The adsorbent features were interpreted using infrared spectroscopy and electron microscopy. Process optimization was carried out using Response Surface Methodology (RSM) through a dual section Fractional Factorial Experimental Design to contemplate the impact of boundaries on the course of adsorption. The examination of fluctuation (ANOVA) was utilized to consider the joined impact of the boundaries. The possibilities of the use of dye adsorbing HNT (“sludge”) for the fabrication of the composites using plastic waste are suggested.

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Engineering of Calcium Alginate- PANI@Sawdust Wood hydrogel Bio-beads for the Removal of the Sulfonate Groups-Containing Orange G dye from Aqueous Solution

10.21203/rs.3.rs-979902/v1 ◽

2021 ◽

Author(s):

ABDELAZIZ IMGHARN ◽

Nouh Aarab ◽

Abdelghani Hsini ◽

Yassine Naciri ◽

Mohammed Elhoudi ◽

...

Keyword(s):

Calcium Alginate ◽

Fourier Transforms ◽

Low Cost ◽

Aqueous Media ◽

Freundlich Isotherm ◽

Batch Tests ◽

Orange G ◽

Ft Ir ◽

Interfering Ions ◽

Ft Ir Spectroscopy

Abstract The aim of this work is to investigate the adsorption performance of orange G (OG) dye from aqueous solutions employing PANI@sawdust biocomposite enrobed by calcium-alginate biobeads (Alg-PANI@SD). The as-prepared adsorbent was characterized by scanning-electron-microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and Fourier transforms infrared (FT-IR) spectroscopy, and used to remove Orange G dye from water. batch tests were performed as a function of adsorbent dosage, pH, contact time, interfering ions and initial OG dye concentration. Experimental results show that the kinetic model of pseudo-first-order (PFO) and Freundlich isotherm provided a good fitting of the whole experimental data. The results revealed that the as-prepared tricomposite Alg-PANI@SD, has the potential to be applied as a low-cost adsorbent for the adsorption of OG dye from aqueous media.

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Engineered biochar from wood apple shell waste for high-efficient removal of toxic phenolic compounds in wastewater

Scientific Reports ◽

10.1038/s41598-021-82277-2 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Nadavala Siva Kumar ◽

Hamid M. Shaikh ◽

Mohammad Asif ◽

Ebrahim H. Al-Ghurabi

Keyword(s):

Low Cost ◽

Aqueous Media ◽

Kinetic Studies ◽

Apple Fruit ◽

Order Model ◽

High Efficient ◽

Shell Waste ◽

Langmuir Isotherm Model ◽

Pseudo Second Order ◽

Polluted Wastewater

AbstractThis study investigated a novel agricultural low-cost bio-waste biochar derived from wood apple fruit shell waste via the pyrolysis method, which is modified by ball milling and utilized to remove toxic phenol and chlorophenols (4-CPh and 2,4-DCPh) from contaminated aqueous media. The ball-milled wood apple fruit shell waste biochar (WAS-BC) sorbent was systematically analyzed by BET, CHN, and FTIR as well as particle size, SEM–EDS, XPS and TGA studies. The sorption equilibrium and kinetic studies exhibit that the sorption capacity was greater than 75% within the first 45 min of agitation at pH 6.0. The uptake capacity of 2,4-DCPh onto WAS-BC was greater than those of 4-CPh and phenol. Equilibrium results were consistent with the Langmuir isotherm model, while the kinetic data were best represented by the Elovich and pseudo-second-order model. The maximum uptake of phenol, 4-CPh, and 2,4-DCPh was 102.71, 172.24, and 226.55 mg/g, respectively, at 30 ± 1 °C. Thus, this study demonstrates that WAS-BC is an efficient, low-cost sorbent that can be used for the elimination of phenol and chlorophenol compounds from polluted wastewater.

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Adsorption of Toluene Using Low Cost Adsorbent

Jurnal Teknologi ◽

10.11113/jt.v40.420 ◽

2012 ◽

Author(s):

Bassim H. Hameed ◽

Abdul Rahman Mohamed ◽

Hui Ying Chong

Keyword(s):

Experimental Data ◽

Low Cost ◽

Freundlich Isotherm ◽

Langmuir Model ◽

Isotherm Model ◽

Isotherm Models ◽

Batch System ◽

Key Words Toluene ◽

Langmuir Isotherm Model ◽

Langmuir And Freundlich Models

Kertas kerja ini membincangkan tentang kecekapan penjerap yang lebih murah, iaitu tayar getah terbuang (DRT), dalam menyingkirkan toluena daripada fasa akuas. Penjerapan toluena pada tayar getah terbuang dikaji menggunakan sistem berkelompok pada suhu 25°C dan 30°C. Daripada kajian ini, didapati toluena dapat disingkirkan sehingga 70% dengan menggunakan julat kepekatan awalan antara 50 mg/l hingga 300 mg/l. Dengan menggunakan model keseimbangan terlelurus, iaitu model Langmuir dan Freundlich, keupayaan penjerapan maksimum dapat ditentukan. Daripada data eksperimen, terbukti bahawa walaupun kedua–dua model isoterma Langmuir dan Freundlich boleh menjelaskan data isoterma, tetapi penjerapan toluena pada DRT dapat ditunjukkan dengan lebih baik oleh isoterma Freudlich. Bagi nilai K Freundlich, keupayaan penjerapan ialah 6.6374 mg/l dan 7.7535 mg/l, pada suhu 25°C dan 30°C. Nilai eksponen n Freudlich adalah lebih daripada satu untuk kedua–dua suhu. Kata kunci: Toluena, penjerapan, isoterma, tayar getah terbuang, model isoterma Langmuir, model isoterma Freundlich This paper discusses the effectiveness of a less expensive adsorbent, a discarded rubber tyre (DRT) in removing toluene from aqueuos phase. Adsorption of toluene on a DRT has been studied by using batch system at 25 and 30°C. It was found that up to 70% of toluene was removed for the range of toluene initial concentrations studied between 50–300 mg/l. Using linearized forms of equilibrium models, namely Langmuir and Freundlich models, the maximum adsorptive capacities were determined. It was evident from the experimental data that, although both Langmuir and Freundlich isotherm models could describe the isotherm data, the adsorption of toluene on a DRT was described well by the Freundlich isotherm. For Freundlich K values, sorption capacities were 6.6374 and 7.7535 mg/l at 25 and 30°C, respectively. The values of Freundlich exponent n were greater than one for both temperatures. Key words: Toluene, adsoprtion, isotherms, discarded rubber tyre, Langmuir isotherm model, Freundlich isotherm model

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Utilization of a Newly Developed Nanomaterial Based on Loading of Biochar with Hematite for the Removal of Cadmium Ions from Aqueous Media

Sustainability ◽

10.3390/su13042191 ◽

2021 ◽

Vol 13 (4) ◽

pp. 2191

Author(s):

Tunzeel Iqbal ◽

Shahid Iqbal ◽

Fozia Batool ◽

Dimitrios Thomas ◽

Malik Muhammad Hassnain Iqbal

Keyword(s):

Metal Ions ◽

Adsorption Process ◽

Low Cost ◽

Aqueous Media ◽

Freundlich Isotherm ◽

Batch Adsorption ◽

Type I ◽

Process Data ◽

Desorption Process ◽

Saccharum Munja

In order to conserve the energy used for remediation of harmful metals from aqueous media, an adsorption process was performed. It is efficient and low-cost method with zero carbon emissions as compared to other methods. A hematite-based novel nanomaterial loaded onto biochar was utilized for the remediation of toxic cadmium metal ions from aqueous media. Saccharum munja has been employed as low-cost feedstock to prepare the biochar. Three adsorbents i.e., raw Saccharum munja (SM), Saccharum munja biochar (SMBC) and hematite-loaded Saccharum munja bichar (HLSMBC) were used in batch adsorption tests to study uptake of metal ions by optimizing the experimental parameters. Experimental data and calculated results revealed maximum sorption efficiency of Cd(II) removal was given by HLSMBC (72 ppm) and SMBC (67.73 ppm) as compared with SM (48.7 ppm). Among adsorption isotherms applied on work best fit for Cd(II) adsorption on SM was found for a Freundlich isotherm with high values of correlation coefficient R2 ≥ 0.9 for all sorbents and constant 1/n values between 0–1. Equilibrium results were evaluated using five different types of errors functions. Thermodynamic studies suggested feasible, spontaneous and endothermic nature of adsorption process, while, the ∆H parameter < 80 kJ/mol indicated physiosorption and positive ∆S values promoted randomness of ions with increase in adsorption process. Data fitted into type I of pseudo second order kinetics having R2 ≥ 0.98 and rate constants K2 (0–1). Desorption process was also performed for storage, conservation and reuse of sorbent and sorbate materials.

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Adsorption of crystal violet dye onto olive leaves powder: Equilibrium and kinetic studies

10.31219/osf.io/c4uqx ◽

2021 ◽

Author(s):

CI Chemistry International

Keyword(s):

Aqueous Solutions ◽

Adsorption Capacity ◽

Crystal Violet ◽

Low Cost ◽

Wave Length ◽

Kinetic Studies ◽

Absorption Spectrometry ◽

Isotherm Models ◽

Olive Leaves ◽

Crystal Violet Dye

Adsorption of crystal violet dye from aqueous solutions applying olive leaves powder (OLP) as a biosorbent has been examined under various experimental circumstances. The influence of contact time, pH, initial concentration of studied dye and adsorbent dose on the adsorption process has been investigated applying batch experiments. The concentration of remaining dye has been determined using molecular absorption spectrometry at wave length of 580 nm. The maximum removal of studied dye has been realized at pH 7.5 with a percent removal of 99.2% after 20 min of agitation time. Langmuir, Freundlich, and Temkin isotherm models exemplify the best fit for the experimental data; while the elevated adsorption capacity was 181.1 mg.g1. Adsorption kinetics of crystal violet was expected sufficiently with the empirical pseudo-second-order model. Corresponding to the adsorption capacity, olive leaves powder thought as a low cost, effective, and environmentally friendly biosorbent for the removal of crystal violet dye from aqueous solutions.

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The Elimination by Natural Algerian Clay of Chromium Ions from Salt Water

Annales de Chimie Science des Matériaux ◽

10.18280/acsm.450202 ◽

2021 ◽

Vol 45 (2) ◽

pp. 105-112

Author(s):

Rachid Chebbi ◽

Amar Fadel ◽

Amel Aidi

Keyword(s):

Metal Ion ◽

Salt Water ◽

Freundlich Isotherm ◽

Kinetic Studies ◽

Ion Concentration ◽

Isotherm Models ◽

Adsorption Method ◽

Retention Capacity ◽

Chromium Ions ◽

Stirring Time

This paper studies the removal of chromium ions from synthetic brackish water by an adsorption method using natural Algerian Bentonite (NAB), the mineral clay was characterized through FTIR, XRD and SEM/EDS analysis. The effect of the main physicochemical parameters; namely: clay dosage, initial metal ion concentration, pH, and contact time on the removal of Cr+3 was investigated. The results showed that equilibrium was attained within 5 minutes of stirring time. The retention capacity of Cr+3 increased with the increase of adsorbent dose and decreased with the increased initial metal ion concentration. The Langmuir and Freundlich isotherm models were applied to determine the efficiency of bentonite used as an adsorbent. According to the obtained results, the Langmuir model adjusts very well to the experimental data. Based on the kinetic studies for the raw bentonite, it was verified that the mechanism corresponds to predominant pseudo-second- order adsorption.

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Removal of Dye Acid Red 1 from Aqueous Solutions Using Chitosan-iso-Vanillin Sorbent Material

Indonesian Journal of Science and Technology ◽

10.17509/ijost.v5i3.24986 ◽

2020 ◽

Vol 5 (3) ◽

pp. 352-365

Author(s):

Eman Al Abbad ◽

Fadi Alakhras

Keyword(s):

Aqueous Solutions ◽

Low Cost ◽

Freundlich Isotherm ◽

Kinetic Studies ◽

Sorption Process ◽

Modified Chitosan ◽

Sorbent Material ◽

Removal Capacity ◽

Rate Determining Step ◽

Acid Red 1

Sorption of Acid Red 1 (AR1) from aqueous solutions utilizing low-cost sorbent material; (chitosan-iso-vanillin) is studied under batch conditions. The remaining concentrations of the azo dye are measured at λmax = 546 nm by UV spectrophotometric method. Langmuir data reveal that the maximum removal capacity was 555.556 mg/g at pH 3. Freundlich isotherm represents the best fitting model on the removal of AR1 using chemically modified chitosan verifying the sorption takes place on heterogeneous surfaces with multilayer adsorption. Kinetic studies of the sorption process revealed that intraparticle diffusion is not only the rate-determining step but also a chemical reaction takes place as well. The results indicate that high sorption rapidness with almost 90% achieved within 90 min. Thermodynamic investigations suggest that the process favours an exothermic nature. The polymer utilized in the present study is being considered as a feasible sorbent material for the removal of AR1 from waste effluent.

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The Effectiveness of Magnetite Modified Gallic Acid Synthesized by Sonochemical Method As AuCl4- Adsorbent-Reductor

Indo J Chem Res ◽

10.30598//ijcr.2021.8-may ◽

2021 ◽

Vol 8 (3) ◽

pp. 194-201

Author(s):

Maya Rahmayanti ◽

Sri Juari Santosa ◽

Sutarno Sutarno ◽

Astuti Paweni

Keyword(s):

Adsorption Isotherm ◽

Gallic Acid ◽

Freundlich Isotherm ◽

Kinetics Model ◽

Isotherm Model ◽

Sonochemical Method ◽

Adsorption Method ◽

Isotherm Adsorption ◽

Langmuir Isotherm Model ◽

Ph Range

In recent years gallic acid has been developed as an AuCl4- adsorbent-reducing agent. In this research, gallic acid was modified with magnetite by sonochemical method (GA-Fe3O4), and its effectiveness as an AuCl4- adsorbent was studied. GA-Fe3O4 was synthesized through one-stage (GA-Fe3O4-SK1) and two-stage (GA-Fe3O4-SK2) methods. The effectiveness of GA-Fe3O4 was studied through optimization studies on pH, time, kinetics, and isotherm adsorption of AuCl4-. The adsorption method used was the batch method in the pH range 2-7. While the kinetics model used was the Lagergren and Ho kinetics model. The adsorption isotherm model used was the Freundlich and Langmuir isotherm model. The results showed that the optimum pH conditions for adsorption of AuCl4- on GA-Fe3O4 occurred at pH 3. Adsorption of AuCl4- on GA-Fe3O4-SK1 and GA-Fe3O4-SK2 both followed the Ho kinetic model, while the adsorption isotherm followed the Freundlich isotherm model with values KF were 0.041 and 0.034 mol/g respectively.

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