New biosorbent based on deoiled karanja seed cake in biosorption studies of Zr(IV): Optimization using Box–Behnken method in response surface methodology with desirability approach

Varala, Sayanasree; Dharanija, Banala; Satyavathi, B.; Rao, V. V. Basava; Parthasarathy, Rajarathinam

doi:10.1016/j.cej.2016.05.088

Cited by 49 publications

(16 citation statements)

References 39 publications

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“…The objective of this study is to isolate a novel bacterial strain capable of decolorizing this anthraquinonebased textile dyes. The metabolic activity of any microorganisms affecting the decolorization efficiency can be improved by optimizing the environmental parameters such as pH, temperature, and inoculum size (Varala, Dharanija, Satyavathi, Rao, & Parthasarathy, 2016). For the optimization of decolorizing parameters, a three-factor design with three independent variables was applied using BBD matrix of RSM to exclude the limitation of one-factor-at-a-time (OFAT) method (Tang, Xiao, Xu, & Zhang, 2013;Thakur, Khan, & Doshi, 2012).…”

Section: Introductionmentioning

confidence: 99%

Response surface methodology mediated optimization of Indanthrene Blue RS by a novel isolated bacterial strain Bacillus flexus TS8

Mohanty

Kumar

2019

Water Environment Research

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The enhanced decolorization and detoxification of Indanthrene Blue RS dye, under aerobic conditions, by a novel isolated anthraquinone‐degrading bacterium, Bacillus flexus TS8, has been presented in this paper. The optimal decolorization conditions were determined by response surface methodology based on Box–Behnken design. The results indicated that the strain TS8 possessed the highest decolorization efficacy at pH 10.26, temperature 30.97 ºC and an inoculum size of 10.48% (v/v). It also revealed that about 98.01% of 100 mg/L of Indanthrene Blue RS could be decolorized within 24 hr under these optimized conditions. The subsequent degradation of the dye and the formation of metabolites were studied using analytical techniques such as UV‐Vis spectroscopy, FTIR, and ESI/LC‐MS analysis. The UV‐Vis analysis of the colorless bacterial cells demonstrated that Bacillus sp. TS8 possessed this decolorizing activity through biodegradation. The degraded products obtained from ESI/LC‐MS analysis were identified as 1‐hydroxyanthracene‐9, 10‐dione (m/z‐224), 1, 4‐di‐hydroxyanthracene‐9, 10‐dione (m/z‐240), and phthalic acid (m/z‐168). This study investigated the highest decolorization efficacy of strain TS8 to be utilized in the biological treatment of wastewaters containing anthraquinone dyes. Practitioner points Enhanced decolorization of anthraquinone dye wastewater. Ninety‐eight percentage of dye decolorization was obtained within 24 hr. Optimization of process parameters through the response surface methodology. ESI/LC‐MS analysis identified phthalic acid as the end product of Indanthrene Blue RS degradation. Degradation pathway for Indanthrene Blue RS is outlined.

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Section: Introductionmentioning

confidence: 99%

Response surface methodology mediated optimization of Indanthrene Blue RS by a novel isolated bacterial strain Bacillus flexus TS8

Mohanty

Kumar

2019

Water Environment Research

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“…Table shows the experimental and predicted results based on the Box-Behnken design . Fifteen experimental runs were performed, which included three replications at the center point. , The response functions for the yield of HMF Y (1) and for the conversion of glucose Y (2) are eq and eq , respectively. …”

Section: Results and Discussionmentioning

confidence: 99%

Metal-Free Synthesis of HMF from Glucose Using the Supercritical CO₂–Subcritical H₂O–Isopropanol System

Agutaya

Inoue

Tsie

et al. 2020

Ind. Eng. Chem. Res.

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5-Hydroxymethylfurfural (HMF) is a promising building block for the production of biofuels and fine chemicals. While HMF can be derived from biomass, specifically sugars, its synthesis typically requires the use of metal-based catalysts and ionic liquids. In this study, the supercritical CO 2 −subcritical H 2 O−isopropanol system was proposed as a green reaction medium for the conversion of glucose to HMF. The response surface methodology based on the Box-Behnken design was used to investigate the effect of temperature, pressure, and isopropanol concentration on the yield of HMF. From the quadratic models, the highest HMF yield was predicted to be 38.3% with a corresponding glucose conversion of 87.5% at 200 °C, 16 MPa, and 8 vol % isopropanol. A mechanistic study based on the density functional theory was also performed and the results revealed that isopropanol can facilitate the various hydride shifts that occur in the conversion of glucose to HMF.

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“…RSM was the collection of the statistical and mathematical methods on demonstrating, investigating and modelling the issues raised. This technique is used to analyze and study the relationship between variables (Dependent and Independent) and to study the enhancement of the rate of the reaction when variables are shifted at same time [30]. The variation in the combination of variables results in a greater amount of product formation, and the corresponding responses were optimized [31].…”

Section: Rsmmentioning

confidence: 99%

Removal of Basic Fuchsin Red dye by Turmeric leaf waste biochar: Batch adsorption studies, isotherm kinetics and RSM studies

2022

Global NEST Journal

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<p>In this study, the basic fusion dye was adsorbed from wastewater using turmeric leaf waste biochar and the experimental outcomes were fitted with isotherm and kinetics. Further, Response Surface Methodology (RSM) was also performed to analyse the concurrent interactive effects of the process variables. Pyrolysis of turmeric leaf waste biomass resulted in biochar yield of 44.65% at temperature of 300 °C. The biochar had moisture content of 4.21%, volatile matter of 45.38%, ash content of 17.74% and fixed carbon of 32.65% respectively. The batch adsorption studies showed maximum dye removal of 87.44 % and 71% at temperature of 35 °C, dosage of 0.3g, time of 60 min, pH of 7 and dye concentration of 50 ppm respectively for biochar and biomass respectively. The experimental data obtained at equilibrium condition fitted well in pseudo-second order and Langmuir isotherm with R2 value of 0.98 respectively. This study provides base for usage of turmeric leaf-based waste for synthesis of biochar and for effective removal of dye from aqueous environment.</p>

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New biosorbent based on deoiled karanja seed cake in biosorption studies of Zr(IV): Optimization using Box–Behnken method in response surface methodology with desirability approach

Cited by 49 publications

References 39 publications

Response surface methodology mediated optimization of Indanthrene Blue RS by a novel isolated bacterial strain Bacillus flexus TS8

Response surface methodology mediated optimization of Indanthrene Blue RS by a novel isolated bacterial strain Bacillus flexus TS8

Metal-Free Synthesis of HMF from Glucose Using the Supercritical CO₂–Subcritical H₂O–Isopropanol System

Removal of Basic Fuchsin Red dye by Turmeric leaf waste biochar: Batch adsorption studies, isotherm kinetics and RSM studies

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New biosorbent based on deoiled karanja seed cake in biosorption studies of Zr(IV): Optimization using Box–Behnken method in response surface methodology with desirability approach

Cited by 49 publications

References 39 publications

Response surface methodology mediated optimization of Indanthrene Blue RS by a novel isolated bacterial strain Bacillus flexus TS8

Response surface methodology mediated optimization of Indanthrene Blue RS by a novel isolated bacterial strain Bacillus flexus TS8

Metal-Free Synthesis of HMF from Glucose Using the Supercritical CO2–Subcritical H2O–Isopropanol System

Removal of Basic Fuchsin Red dye by Turmeric leaf waste biochar: Batch adsorption studies, isotherm kinetics and RSM studies

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Product

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Metal-Free Synthesis of HMF from Glucose Using the Supercritical CO₂–Subcritical H₂O–Isopropanol System