Removal of copper(II) from aqueous solution by pine and base modified pine cone powder as biosorbent

Ofomaja, Augustine E.; Naidoo, Eliazer Bobby; Modise, Sekomeng J.

doi:10.1016/j.jhazmat.2009.02.106

Cited by 144 publications

(79 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“….94 mg/g) with increase biomass dose. Similar reports are found in literature [7,22]. It is apparent that by increasing the amount of RBL, available sorption sites for sorbentsolute interaction is increased due to increased available surface negative charges and decrease in the electrostatic potential near the RBL surface which favors sorbent-solute interaction; hence, leading to the noticed increased percentage Pb 2+ removal from the aliquot solution.…”

Section: Effect Of Adsorbent Dosesupporting

confidence: 87%

“…This was determined by equilibrating the sorbent-sorbate mixture containing 500 mg/L of Pb 2+ at pH values between 3 and 7. pH is an important biosorption parameter because it affects the activities of functional groups present on the surface of the biosorbent which are responsible for adsorption, and affects competitive adsorption of ions to sorption sites [7,24,26]. Thus, various biosorbents have various optimum sorption pH for different metals.…”

Section: Effect Of Ph On Adsorptionmentioning

confidence: 99%

“…These include mungbean husk [5], hazelnut shell [6], almond shell [6], pine [7], lignin [8], tea leaves [9], tree ferm [10], groundnut husks [11], sphagnum moss peat [12], sawdust [13], rice hulls [14], chitosan [14], sugarcane bagasse [15], cocoa shell [16], and rice husk [17]. However, some major limitations of these biosorptions are that some of them have not yielded satisfactory results (high metal adsorption capacity) and others that yielded good results may not locally be available.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanism of Pb2+ removal from aqueous solution using a nonliving moss biomass

Olu-Owolabi

Diagboya

Ebaddan

2012

Chemical Engineering Journal

View full text Add to dashboard Cite

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. a b s t r a c tBiosorption of lead (II) ions onto raw biomass of the moss plant Barbula lambarenensis has been studied using the batch equilibrium adsorption method. Equilibrium isotherms, kinetics and thermodynamic parameters have been evaluated. The FT-IR analysis showed that likely functional groups responsible for the adsorption are carboxyl, carbonyl, amides and hydroxyl groups. The pH for optimum adsorption is 5.0. Equilibrium data fit well to the Langmuir isotherm. The estimated maximum adsorption capacity was found to be 62.50 mg/g at 298 K and 90.91 mg/g at 323 K. The kinetic data obeyed the pseudo-second-order model. The free energy changes (DG o ) are positive and the reaction is exothermic with decreased randomness at the sorbent/solution interface. Taking into account its good adsorption capacity, ease of sample treatment, as well as availability, the biomass of B. lambarenensis is a promising cost-effective biosorbent for Pb 2+ removal from aqueous environment.

show abstract

Section: Effect Of Adsorbent Dosesupporting

confidence: 87%

Section: Effect Of Ph On Adsorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanism of Pb2+ removal from aqueous solution using a nonliving moss biomass

Olu-Owolabi

Diagboya

Ebaddan

2012

Chemical Engineering Journal

View full text Add to dashboard Cite

show abstract

“…Pine cone (PC) is an agricultural waste which is derived in large quantity as an inexpensive biomass from the pine plantations made for pulp and paper industry (Ofomaja et al 2009;Ayrilmis et al 2009). The surface of PC contains various functional groups such as alcohols and aldehydes in its cellulose, hemicelluloses, and lignin fractions, which make it suitable for a series of chemical reactions (condensation, etherification, and copolymerization) and surface modifications (Benyoucef and Amrani 2011).…”

Section: Introductionmentioning

confidence: 99%

Arsenic(III) removal from aqueous solution by raw and zinc-loaded pine cone biochar: equilibrium, kinetics, and thermodynamics studies

Vinh

Zafar

Behera

et al. 2014

Int. J. Environ. Sci. Technol.

151

View full text Add to dashboard Cite

The potential of raw pine cone (PC) biochar and its modified form (Zn-loaded biochar) was evaluated for the removal of trivalent arsenic [As(III)] from the aqueous solution. The influence of treatment of PC biochar with Zn(NO 3 ) 2 on the physico-chemical properties of biochar was examined using elemental analyzer, surface area analyzer, thermo-gravimetric analyzer, Fourier transform infrared spectroscopy, and scanning electron microscopy. Experimental results revealed that the removal of As(III) was almost consistent (66.08 ± 3.94 and 87.62 ± 3.88 % on raw and Zn-loaded biochar, respectively) over an acidic pH range of 2-4 as a consequence of high affinity between the positively charged biochar surface and the predominant arsenic species (H 3 AsO 3 and H 2 AsO 4 -), followed by a decrease with increase in pH in the range of 4-12. Langmuir isotherm model was well fitted to the experimental equilibrium data (R 2 = 0.93) rendering the maximum adsorption capacity of 5.7 and 7.0 lg g -1 on raw and Znloaded PC biochar, respectively. The adsorption of As(III) was well represented by pseudo-second order with reaction rate constant (k 2 ) of 0.040 and 0.282 mg g -1 min on raw and zinc-loaded PC biochar, respectively, and was mainly controlled by boundary layer diffusion followed by some extent of intra-particle diffusion. The adsorption process was spontaneous with Gibb's free energy (DG°, -4.42 ± 0.72 and -11.86 ± 1.78 kJ mol -1 ) and exothermic in nature with enthalpy (DH°, 13.25 and 31.10 kJ mol -1) and entropy (DS°, 0.058 and 0.141 kJ mol -1 K -1 ) for raw and zinc-loaded adsorbent, respectively.

show abstract

“…V is the volume of the dye solution (L) and m is the mass of the sludge biomass used as VSS (g), which were determined according to the Standard Methods (APHA 1998). Point of zero charge (PZC) of anaerobic SRB sludge was determined by solid addition method as described earlier (Ofomaja et al 2009). …”

Section: Methodsmentioning

confidence: 99%

Characteristics, kinetics and thermodynamics of Congo Red biosorption by activated sulfidogenic sludge from an aqueous solution

Rasool

Lee

2013

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

The kinetics and thermodynamics of the biosorption of textile dye Congo Red on anaerobic activated sulfidogenic sludge were examined. The influence of different adsorption parameters such as pH, temperature, contact time and initial dye concentrations on the biosorption capacity was also investigated. The sulfidogenic sludge showed a maximum biosorption density of 238.90 mg dye/g cell for Congo Red at an initial dye concentration of 1,000 mg/L, pH 3.5 and 22°C, which is higher than that of many other adsorbents reported in the literature. The biosorption processes obeyed the Langmuir isotherm and exhibited pseudo-second-order rate kinetics. The thermodynamic parameters indicated the spontaneous and exothermic nature of Congo Red biosorption. The Fourier transform infrared spectra revealed the dye interaction with the biomass. Scanning electron microscopy showed significant changes in the surface morphology of the sludge after dye biosorption. These results showed that sulfidogenic sludge biomass is an attractive alternative low-cost biosorbent for the removal of the dye from aqueous media.

show abstract

Removal of copper(II) from aqueous solution by pine and base modified pine cone powder as biosorbent

Cited by 144 publications

References 37 publications

Mechanism of Pb2+ removal from aqueous solution using a nonliving moss biomass

Mechanism of Pb2+ removal from aqueous solution using a nonliving moss biomass

Arsenic(III) removal from aqueous solution by raw and zinc-loaded pine cone biochar: equilibrium, kinetics, and thermodynamics studies

Characteristics, kinetics and thermodynamics of Congo Red biosorption by activated sulfidogenic sludge from an aqueous solution

Contact Info

Product

Resources

About