Separate and simultaneous removal of phenol, chromium, and cyanide from aqueous solution by coagulation/precipitation: Mechanisms and theory

Golbaz, Somayeh; Jafari, Ahmad Jonidi; Rafiee, Mohammad; Kalantary, Roshanak Rezaei

doi:10.1016/j.cej.2014.05.074

Cited by 143 publications

(51 citation statements)

References 27 publications

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“…Wastewater treatment operations are carried out through physical, chemical, and/or biological processes to meet the current standards for discharge of effluent to the environment. There are various methods for phenol removal from aqueous solutions, such as Fenton-based technologies (3), ozonation (4), coagulation (5), biological processes (6), adsorption (7), electro-oxidation (8), and electrocoagulation (9). ity (up to 99%), and high modification capability (12)(13)(14).…”

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization, and Application of Silica Aerogel for Adsorption of Phenol: An In-Depth Isotherm Study

et al. 2018

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This study evaluated silica aerogel as an adsorbent for phenol removal from aqueous solutions. Silica aerogel was prepared through the sol-gel process and characterized by different analyses. Then, it was used for phenol removal under various conditions of operational parameters. Also, twelve isotherm parameters were employed to describe the behavior of phenol-silica aerogel adsorption system. The chemical structural analysis confirmed -OH functional groups in amorphous SiO2 and proved the adsorption of phenol onto the surface of silica aerogel. The findings of the adsorptive behavior of silica aerogel toward phenol showed increasing pH, up to 8.5, and contact time, and adsorbent dose increased the phenol removal. The removal efficiency reached over 90% when phenol concentration was below 50 mg L -1 . The reaction kinetics followed the pseudo-first order model. The isotherm study showed that equilibrium adsorption data were well-described by Freundlich and Halsey equations, among two-parameter isotherms, and Hill, Sips, and Koble-Corrigan, among three-parameter isotherms. Jovanovic and BET were the worst isotherm models for prediction of experimental equilibrium data. The maximum adsorption capacity of 75.23 mg.g -1 was calculated in phenol-silica aerogel adsorption system. The study showed silica aerogel as an efficient adsorbent to remove phenol from phenol-containing solutions.

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Section: Introductionmentioning

confidence: 99%

Preparation, Characterization, and Application of Silica Aerogel for Adsorption of Phenol: An In-Depth Isotherm Study

et al. 2018

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“…Diversas técnicas são relatadas na literatura para remoção de metais pesados de recursos hídricos, eletrocoagulação/floculação (RINCON; LA-MOTTA, 2014;ESPINOZA-QUIÑONES et al, 2011); osmose inversa (CUI et al, 2014); coagulação/precipitação (GOLBAZ et al, 2014) e adsorção (MÓDENES et al, 2011a;MÓDENES et al, 2011b;PIETROBELLI et al, 2009;MÓDENES et al, 2009) são alguns exemplos.…”

Section: Introductionunclassified

Estudo Da Adsorção Dos Íons Fe2+ Pelo Adsorvente Supergeltm SGC 650h

Oliveira¹,

Novais²,

Kerber³

et al. 2015

Anais Do XXXVII Congresso Brasileiro De Sistemas Particulados

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A exposição aos metais pesados aumentou com o crescimento industrial. Tal fato tem gerado grandes preocupações, uma vez que, os metais pesados não são degradáveis e possui característica cumulativa nos organismos, ocasionando diversas doenças, podendo levar até a morte. Dentre os metais pesados, o ferro ganha destaque por ser um metal essencial ao organismo. Entretanto, em excesso é altamente prejudicial à saúde.

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“…1a-c, respectively. FTIR study suggested that functional groups such as N-H, O-H, C=O, and C-O were present onto the surface of tea waste biomass (Golbaz et al 2014). The FTIR spectrum of tea waste biomass before adsorption (Fig.…”

Section: Characterization Of Biosorbentmentioning

confidence: 99%

Statistical optimization of process parameters for the simultaneous adsorption of Cr(VI) and phenol onto Fe-treated tea waste biomass

Gupta

Balomajumder

2017

Appl Water Sci

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In this study, simultaneous removal of Cr(VI) and phenol from binary solution was carried out using Fetreated tea waste biomass. The effect of process parameters such as adsorbent dose, pH, initial concentration of Cr(VI) (mg/L), and initial concentration of phenol (mg/L) was optimized. The analysis of variance of the quadratic model demonstrates that the experimental results are in good agreement with the predicted values. Based on experimental design at an initial concentration of 55 mg/L of Cr(VI), 27.50 mg/L of phenol, pH 2.0, 15 g/L adsorbent dose, 99.99% removal of Cr(VI), and phenol was achieved.

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Separate and simultaneous removal of phenol, chromium, and cyanide from aqueous solution by coagulation/precipitation: Mechanisms and theory

Cited by 143 publications

References 27 publications

Preparation, Characterization, and Application of Silica Aerogel for Adsorption of Phenol: An In-Depth Isotherm Study

Preparation, Characterization, and Application of Silica Aerogel for Adsorption of Phenol: An In-Depth Isotherm Study

Estudo Da Adsorção Dos Íons Fe2+ Pelo Adsorvente Supergeltm SGC 650h

Statistical optimization of process parameters for the simultaneous adsorption of Cr(VI) and phenol onto Fe-treated tea waste biomass

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