Removal of lead and chromium from wastewater using bagasse fly ash—a sugar industry waste

Gupta, Vinod Kumar; Ali, Imran

doi:10.1016/j.jcis.2003.11.007

Cited by 675 publications

(349 citation statements)

References 20 publications

Supporting

Mentioning

330

Contrasting

Unclassified

Order By: Relevance

“…Prakasham et al (1999) and Kadimpati et al (2013) suggested that the removal of heavy metals by adsorption on various biomass surfaces is the best alternative to the physico and chemical methods. In recent years, many researchers used the various bio-materials such as tea factory waste (Cay et al 2004;Nuhoglu 2005, 2006), sawdust (Acar and Malkoc 2004;Yu et al 2003), soya cake (Daneshvar et al 2002), sugar cane bagasse (Gupta and Ali 2004), green algae (Gupta et al 2001;Malkoc and Nuhoglu 2003), distillery sludge (Selvaraj et al 2003) for removal of heavy metals from waste waters. Most of the low-cost sorbents have the limitation of poor sorptive capacity, and thereby, for the same degree of treatment it generates more solid waste (pollutant laden sorbent after treatment) leading to disposal problems.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of mangrove leaf powder for bioremediation of chromium (VI) from aqueous solutions: kinetic and thermodynamic evaluation

et al. 2014

View full text Add to dashboard Cite

Biosorption of heavy metals by bio-materials has been posited as a potential alternative to the existing physicochemical technologies for detoxification and recovery of toxic and valuable metals from wastewaters. In this context, the role of mangrove leaf powder (MLP) as biosorbent for chromium removal was investigated. In the present study, the effect of process parameters such as particle size, solution pH, initial concentration of Cr(VI) ion and adsorbent dose on chromium removal by MLP was investigated. The maximum sorption was observed at particle size 0.5 mm and pH 2.0. The adsorption data follow the pseudo second-order kinetics model. The isotherms denote that Langmuir model is the best fitted than Freundlich model. The maximum adsorption capacity (Q 0 ) of 60.24 mg/g of Cr(VI) at 30 min on MLP was determined using the Langmuir model. The adsorption isotherm model indicates that the chromium is adsorbing as monolayer on the surface of MLP with heterogeneous energetic distribution of active sites. Various thermodynamic parameters, such as Gibb's free energy (DG°), enthalpy (DH°) and entropy (DS°) have been calculated. The thermodynamic data revealed that the adsorption of chromium ions onto MLP is endothermic in nature and a spontaneous process. The results of the present study suggest that MLP is an effective bioremediation measure for removal of high concentration of Cr(VI) in waste waters.

show abstract

Section: Introductionmentioning

confidence: 99%

Efficacy of mangrove leaf powder for bioremediation of chromium (VI) from aqueous solutions: kinetic and thermodynamic evaluation

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Intensive studies have therefore been carried out to develop more effective and inexpensive metal adsorbents. Candidate materials include industrial or agricultural waste products such as waste slurry [7,8], fly ash [9,10], lignite [11,12] pine bark [13], peat [14,15], and lignin [16][17][18][19][20][21][22][23][24][25]. Babel and Kurniawan [26] and Bailey et al [27] have reviewed the application of low-cost adsorbents for heavy metal removal from contaminated waters.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of metal ions on lignin

Guo

Zhang

Shan

2008

Journal of Hazardous Materials

656

242

View full text Add to dashboard Cite

This study investigated the adsorption of the heavy metal ions Pb(II), Cu(II), Cd(II), Zn(II), and Ni(II) on a lignin isolated from black liquor, a waste product of the paper industry. Lignin has affinity with metal ions in the following order: Pb(II) > Cu(II) > Cd(II) > Zn(II) > Ni(II). The adsorption kinetic data can be described well with a pseudosecond-order model and the equilibrium data can be fitted well to the Langmuir isotherm. Metal ion adsorption was strongly dependent on pH and ionic strength. Surface complexation modelling was performed to elucidate the adsorption mechanism involved. This shows that lignin surfaces contain two main types of acid sites attributed to carboxylic-and phenolic-type surface groups and the phenolic sites have a higher affinity for metal ions than the carboxylic sites.

show abstract

“…Lignin is a three-dimensional aromatic polymer, covalently attached to xylan, in hardwoods, and to Galactoglucomannan in softwoods (Garg et al, 2007). The functional groups present in biomass are molecules of acetyl, carbonyl, phenolic structures of polysaccharides, starch, sulfhydryl, carboxylic and esters (Gupta & Imran, 2004).…”

Section: Resultsmentioning

confidence: 99%

Chemical characterization of agroforestry solid residues aiming its utilization as adsorbents for metals in water

Luzardo¹,

Velasco²,

Alves³

et al. 2015

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

A B S T R A C TIn this work, a study of the correlation between the functional groups present in the chemical structure of the fibers of coconut shells, cocoa and eucalyptus, and their adsorption capacity of Cd +2 and Cu +2 ions from water was performed. The content of soluble solids and reactive phenols in aqueous extracts were determined. The chemical functional groups present in the fibers were examined using the IR spectra. The adsorption capacity of the peels was determined using atomic absorption spectrophotometer. For Cd +2 , a significant correlation between the adsorption capacity and some specific chemical functional groups present in the fiber was verified. The potential use of these peels, as adsorbent of Cd +2 ions, is based on the presence of OH functional groups such as aryl-OH, aryl-O-CH 2 of phenol carboxylic acids, as well as carbonyl groups derived from carboxylic acid salts, in these fibers.Caracterização química de resíduos sólidos agroflorestais visando à sua utilização como adsorventes de metais em água R E S U M O Neste trabalho foi realizado um estudo da correlação entre os grupos funcionais presentes na estrutura química das fibras de casca de coco, cacau e de eucalipto e sua capacidade de adsorção de íons de Cd +2 e Cu +2 da água. Foram determinados o teor de sólidos solúveis e fenois reativos em extratos aquosos. Os grupos químicos funcionais presentes nas fibras foram analisados utilizando-se os espectros de IV. A capacidade de adsorção das cascas foi determinada através de um espectrofotômetro de absorção atômica. Para os íons de Cd +2 foi encontrada uma correlação significativa entre a capacidade de adsorção e alguns grupos funcionais químicos presentes na fibra. O uso potencial dessas cascas, como adsorvente de íons de Cd +2 , se baseia na presença de grupos funcionais arilo-OH, arilo-O-CH 2 de ácidos carboxílicos fenois, tais como grupos carbonila derivados a partir de sais de ácidos carboxílicos, nessas fibras.

show abstract

Removal of lead and chromium from wastewater using bagasse fly ash—a sugar industry waste

Cited by 675 publications

References 20 publications

Efficacy of mangrove leaf powder for bioremediation of chromium (VI) from aqueous solutions: kinetic and thermodynamic evaluation

Efficacy of mangrove leaf powder for bioremediation of chromium (VI) from aqueous solutions: kinetic and thermodynamic evaluation

Adsorption of metal ions on lignin

Chemical characterization of agroforestry solid residues aiming its utilization as adsorbents for metals in water

Contact Info

Product

Resources

About