Pb(II) biosorption from hazardous aqueous streams using Gossypium hirsutum (Cotton) waste biomass

Riaz, Muhammad; Nadeem, Raziya; Hanif, Muhammad Asif; Ansari, Tariq Mahmood; Rehman, Khalil Ur

doi:10.1016/j.jhazmat.2008.03.096

Cited by 99 publications

(53 citation statements)

References 34 publications

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“…As concentration of Zn(II) ions in solution increases there is no further adsorption because of blocking of surface area of adsorbent. Similar results have been reported (Sari and Tuzen 2010;Riaz et al 2009;Nasuha et al 2010). …”

Section: Effect Of Initial Metal Concentrationsupporting

confidence: 92%

Adsorptive removal of heavy metals by magnetic nanoadsorbent: an equilibrium and thermodynamic study

Shirsath¹,

Shirivastava²

2015

Appl Nanosci

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An efficient and new magnetic nanoadsorbent photocatalyst was fabricated by co-precipitation technique. This research focuses on understanding metal removal process and developing a cost-effective technology for treatment of heavy metal-contaminated industrial wastewater. In this investigation, magnetic nanoadsorbent has been employed for the removal of Zn(II) ions from aqueous solutions by a batch adsorption technique. The adsorption equilibrium data fitted very well to Langmuir and Freundlich adsorption isotherm models. The thermodynamics of Zn(II) ions adsorption onto the magnetic nanoadsorbents indicated that the adsorption was spontaneous, endothermic and physical in nature. Surface morphology of magnetic nanoadsorbent by scanning electron microscopy (SEM) and elemental analysis by EDX technique. The structural and photocatalytic properties of magnetic nanoadsorbent were characterized using X-ray diffraction (XRD) and FTIR techniques. Also, the magnetic properties of synthesized magnetic nanoadsorbent were determined by vibrating spinning magnetometer (VSM).

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Section: Effect Of Initial Metal Concentrationsupporting

confidence: 92%

Adsorptive removal of heavy metals by magnetic nanoadsorbent: an equilibrium and thermodynamic study

Shirsath¹,

Shirivastava²

2015

Appl Nanosci

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“…Proximate analysis of sample claimed 34.5% of carbon content together with 51.1 and 56.67% carbon content 3.4 Study of contact, equilibrium time, and particle size Adsorbent particle size significantly influences the percentage biosorption of metal ion onto surface of adsorbent across liquid phase. Various research investigations and literatures have reported that the lowest particle size has maximum metal ion removal potential [7,18,52,53]. Dang et al [17] compared the biosorption efficiency of wheat straw (particle size 2 cm) with green seaweed (particle size 1-4 mm).…”

Section: Scanning Electron Microscopy Analysismentioning

confidence: 99%

Zn(II) Ion Biosorption onto Surface of Eucalyptus Leaf Biomass: Isotherm, Kinetic, and Mechanistic Modeling

Mishra

Balomajumder

Agarwal

2010

CLEAN Soil Air Water

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Bioremediation of Zn(II) by biosorption across aqueous phase on to surface of eucalyptus leaf powder has been investigated in present research work. The adsorptive potential of eucalyptus leaf powder was evaluated as function of pH, temperature, contact time, agitation rate and particle size. Maximum metal ion uptake and percentage removal capacity of eucalyptus leaf powder were 23.5 mg g À1 and 94%, respectively, at optimized pH 5, 20 AE 18C, contact time 6 h, particle size 0.5 mm and agitation rate 200 rpm. The biomass surface analysis revealed the fact that the biomass surface was heterogeneous and porous in nature. The functional groups like amine, amide, carboxyl, hydroxyl, and methyl groups, significantly important for metal ion binding were present on biomass surface in tremendous amount. Additionally, the Fourier transformation IR spectrum analysis of acid and base activated eucalyptus leaf biomass ruled out all the possibilities of the presence of surface functional groups mentioned above. The reaction rate was studied by applying two rate limiting models pseudo first and pseudo second order. Pseudo second order model was found to be more suitable (R 2 ¼ 0.998) in comparison to pseudo first order (R 2 ¼ 0.724). Adsorption equilibrium of batch stirred reaction data fitting shows the dominance of Langmuir isotherm (R 2 ¼ 0.99) against Freundlich isotherm (R 2 ¼ 0.887) model with equipartitional involvement of both film and intra particle diffusion as rate limiting steps at differential status of contact time.Keywords: Bioremediation; Intra particle diffusion; Langmuir isotherm; Pseudo second order reaction; Zn(II) ion IntroductionThe rapid and tremendous industrial development during last decade has increased the heavy metal pollution in environment [1,2]. Heavy metals are non-biodegradable and have tendency to get accumulated inside the human body via incorporation through food chain [3][4][5][6][7]. Major industrial operations unit like metallurgy, steel production, paint and pigment industry, copper smelting unit, acid mine drainage, electroplating, and metal finishing significantly contribute to heavy metal pollution in natural water streams [8][9][10][11][12]. Various remedial technologies/unit operations viz. osmosis, electro coagulation and flocculation, reverse osmosis, solvent extraction, hydroxide precipitation, and membrane separation have been adopted to remove heavy metals across liquid phase [13,14]. In general, all these above mentioned technologies are expensive, lead to generation of secondary chemical sludge containing heavy metals, making the disposal of sludge questionable, and ineffective in removing heavy metals including Zn(II), Cd(II), Pb(II), Cu(II), and Cr(III) at low concentration levels ranging between 1 and 100 mg L À1 [10,[15][16][17][18][19]. Zinc is one of the elements of heavy metal series. Though zinc is an essential element of life but its exposure beyond permissible limit, defined by United States Environmental Protection Agency, World Health Organization, Canadian Wate...

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“…The efficiency of biosorption relies on the adsorption of dissolved metal ions onto the adsorbent surface. Recently, agricultural waste and byproducts such as tobacco stems, peat, wood, pine cones, banana peels, cotton balls, coffee leaves, wheat straws, rice husk, sawdust, and orange peel have been widely investigated as sorbents for metal removal from (waste)water (Annadurai et al, 2003;Ho et al, 2002;Momcilovic et al, 2011;Riaz et al, 2009;Saka et al, 2012;Sciban et al, 2007;Tan, 1985;Wong et al, 2003), making this process both cost-effective and environmentally friendly and simultaneously helping to reduce surface pollution.…”

Section: Batch and Fixed-bed Column Studies For The Biosorption Of Cumentioning

confidence: 99%

Batch and fixed-bed column studies for the biosorption of Cu(II) and Pb(II) by raw and treated date palm leaves and orange peel

2017

Global NEST Journal

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Herein, we describe the batch and fixed-bed column adsorption of Cu 2+ and Pb 2+ by raw and treated date palm leaves (DP) and orange peel (OP) waste biomass. Contact time, pH, adsorbent dose, and particle size were optimized in batch adsorption experiments, while breakthrough curves obtained in fixed-bed adsorption experiments were used to determine the effects of bed height, initial metal concentration, particle size, and flow rate. The use of treated DP and/or OP in batch adsorption mode increased the removal efficiency of metal ions by 20-30% compared to that observed for raw adsorbents. The equilibration time was estimated as 0.5 h, with rapid metal removal observed during the first 15 min at an optimum pH value of ~5. Increasing the adsorbent dose from 0.5 to 6-7 g enhanced the metal removal efficiency by ~60%, whereas a particle size increase from 50 to 300 µm decreased this value by about 30% for both Cu 2+ and Pb 2+ and both raw and treated DP/OP. Both breakthrough and exhaust times increased with increasing bed height of the fixed-bed column, and the effect observed for treated DP exceeded that observed for raw DP by a factor of two. Conversely, both breakthrough and exhaust times decreased with increasing initial metal concentration, particle size, and flow rate. Increasing the particle size from 100-150 to 300 µm changed the exhaust time by 8 h when treated DP was used for Pb 2+ adsorption. The obtained linear regression coefficients (R 2 = 0.9-0.99) suggest that both Thomas and Yoon-Nelson models are well-suited for predicting the adsorption performance of the present system.

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Pb(II) biosorption from hazardous aqueous streams using Gossypium hirsutum (Cotton) waste biomass

Cited by 99 publications

References 34 publications

Adsorptive removal of heavy metals by magnetic nanoadsorbent: an equilibrium and thermodynamic study

Adsorptive removal of heavy metals by magnetic nanoadsorbent: an equilibrium and thermodynamic study

Zn(II) Ion Biosorption onto Surface of Eucalyptus Leaf Biomass: Isotherm, Kinetic, and Mechanistic Modeling

Batch and fixed-bed column studies for the biosorption of Cu(II) and Pb(II) by raw and treated date palm leaves and orange peel

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