Thermal power plants ash as sorbent for the removal of Cu(II) and Zn(II) ions from wastewaters

Tofan, Lavinia; Păduraru, Carmen; Bı̂lbă, Doina; Rotariu, Mugurel

doi:10.1016/j.jhazmat.2007.11.098

Cited by 36 publications

(23 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tofan et al [128] have found that adsorption of Cu(II) ions from water on fly ash is influenced by initial Cu(II) concentration. When the initial concentration of Cu(II) is increased from 30 mg L − 1 to 100 mg L − 1 , the rate coefficient has increased from 3.45 × 10 − 3 min − 1 to 5.07 × 10 − 3 min − 1 (r~0.99) in line with first order kinetics (experimental conditions: adsorbent 10.0 g L − 1 , Cu(II) 30-100 mg L − 1 , pH 4.5, and temperature 291 K).…”

Section: Coppermentioning

confidence: 99%

Kinetics of adsorption of metal ions on inorganic materials: A review

Gupta¹,

Bhattacharyya

2011

Advances in Colloid and Interface Science

752

248

View full text Add to dashboard Cite

Section: Coppermentioning

confidence: 99%

Kinetics of adsorption of metal ions on inorganic materials: A review

Gupta¹,

Bhattacharyya

2011

Advances in Colloid and Interface Science

752

248

View full text Add to dashboard Cite

“…These include chemical precipitation, solvent extraction, sulfide precipitation, membrane filtration, ion exchange, reverse osmosis, electro dialysis, oxidation-reduction, ultrafiltration, evaporation, chemical coagulation/floatation and flocculation, cementation, sorption, biosorption, phyto separation/remediation, activated sludge process, anaerobic-anoxic-oxic (A2O), heavy metal removal from biosurfactants, immobilized microorganisms in rotating biological contractor, solid-liquid-solid extraction, active filtration and high gradient magnetic separation (Cazon et al 2012, Jhonson et al 1982Anand et al 1985;Costely and Wallis 2003;Mulligan et al 2001;Tuppurainen et al 2002;Hammaini et al 2003;Gavrilescu 2004;Berg et al 2005;Chang et al 2006;Wu et al 2007;Grzeszczyk and Rosocka 2007;Tofan et al 2008;Baig et al 2009;Ucun et al 2009;Sprynskyy 2009). The conventional zinc ion remedial technologies have some major technical shortcomings (Rodrigues et al 2012, Vimala et al 2011, Eccles 1999Miretzky et al 2006).…”

Section: Available Technologies For the Removal Of Zinc From Wastewatmentioning

confidence: 99%

“…The investigations evidenced the fact that the surfaces of these biosorbents were quite porous and quite enriched with negatively charged functional groups. Tofan et al (2008) used the thermal power plant ash for the biosorption of zinc ion in liquid phase. Authors obtained thermal fly ash as byproduct of thermal power plant.…”

Section: Biological Removal Of Zinc By Algae and Fungimentioning

confidence: 99%

Biosorption of zinc ion: a deep comprehension

Mishra

2014

Appl Water Sci

View full text Add to dashboard Cite

Massive industrialization and urbanization of civilization during the last few decades have made a thrust in heavy metal pollution in various water bodies. In past, various kinds of conventional metal ion remediation technologies, such as cementation, osmosis, reverse osmosis, ultrafiltration, etc., have been practised. However, most of these technologies are quite expensive, and lead to the generation of secondary chemical sludge. However, biosorption of heavy metal ions is significantly inexpensive and an eco-friendly technology. Among the series of heavy metals, zinc has gained the significant interest due to its toxicity and easy availability in water bodies. Biosorption of zinc in liquid phase by living, nonliving, conventional and non-conventional biosorbents has been practised extensively in the past. This literature review focuses on the recent trends practised in the field of biosorption of zinc from liquid phase. The present work provides deep insight into various aspects of biosorption of zinc by different mechanisms of biosorption, bioaccumulation, isotherm, kinetic and mechanistic modeling. An exhaustive comparison among different sorts of biomasses has also been given in the present work to enlist all the milestones of biosorption.

show abstract

“…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].…”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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...

show abstract

Thermal power plants ash as sorbent for the removal of Cu(II) and Zn(II) ions from wastewaters

Cited by 36 publications

References 24 publications

Kinetics of adsorption of metal ions on inorganic materials: A review

Kinetics of adsorption of metal ions on inorganic materials: A review

Biosorption of zinc ion: a deep comprehension

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

Contact Info

Product

Resources

About