Removal of metals from industrial wastewater and urban runoff by mineral and bio-based sorbents

Gogoi, Harshita; Leiviskä, Tiina; Heiderscheidt, Elisangela; Postila, Heini; Tanskanen, Juha

doi:10.1016/j.jenvman.2017.12.019

Cited by 33 publications

(21 citation statements)

References 19 publications

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“…Among these methods, the adsorption process is extensively considered as an effective and efficient approach due to its low cost, easy handing, the availability of various adsorbents, and its environment-friendly properties [ 1 ]. To date, there has been plenty of literature regarding Zn removal on various adsorbents such as active carbon [ 7 ], carbon nano-materials [ 8 ], magnetic nanoparticle [ 9 ], nano-scale zero-valent iron [ 10 ], mineral [ 4 , 11 ], etc. Ggasemi et al (2015) demonstrated that the maximum adsorption capacity of Zn(II) was only 24.21 mg/g using dioctylphetalate triethylenetetraamine magnetic nanoparticles [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Enhanced Adsorption of Zn(II) onto Graphene Oxides Investigated Using Batch and Modeling Techniques

Pan

Liu

et al. 2018

Nanomaterials

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Graphene oxide (GO) was synthesized and employed as an adsorbent for Zn(II) removal from an aqueous solution. The adsorption isotherms showed that Zn(II) adsorption can be better described using the Freundlich model than the Langmuir model. The maximum adsorption capacity of Zn(II) on GO determined using the Langmuir model at pH 7.0 and 293 K was 208.33 mg/g. The calculation of thermodynamic parameters revealed that the process of Zn(II) adsorption on GO was chemisorptions, endothermic, and spontaneous. Kinetic studies indicated that the pseudo-second-order kinetic model showed a better simulation of Zn(II) adsorption than the pseudo-first-order kinetic model. On the basis of surface complexation modeling, the double layer model provided a satisfactory prediction of Zn(II) by inner-sphere surface complexes (for example, SOZn+ and SOZnOH species), indicating that the interaction mechanism between Zn(II) and GO was mainly inner-sphere complexation. In terms of reusability, GO could maintain 92.23% of its initial capability after six cycles. These findings indicated that GO was a promising candidate for the immobilization and preconcentration of Zn(II) from aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Enhanced Adsorption of Zn(II) onto Graphene Oxides Investigated Using Batch and Modeling Techniques

Pan

Liu

et al. 2018

Nanomaterials

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“…Indeed, the high SSA could supply nSD-KF with highly reactive sites for PO 4 −3 sorption. Obviously, the untreated and un-sieved sawdust have a lower surface area (1.43 m 2 /g) than fine dusts [20,21]. In addition, other observations were recorded on different materials such as Moringa seed waste [22], where the value of specific surface area of bulk Moringa seed waste was 177 mm 2 /g.…”

Section: Characterization Of Nsd-kf Bio-sorbentmentioning

confidence: 96%

Optimum Operating Conditions for the Removal of Phosphate from Water Using of Wood-Branch Nanoparticles from Eucalyptus camaldulensis

et al. 2020

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A batch bio-sorption experiment was conducted on Eucalyptus camaldulensis Dehnh. wood-branch in the form of woody sawdust nanoparticles (nSD-KF) to evaluate their potential efficiency as phosphate bio-sorption capacity. The operating parameters of phosphate bio-sorption including contact time, initial concentration, pH, temperature, dosage, size, competing ion, and the possible mechanisms responsible for phosphate removal from water were investigated. The nSD-KF were green-synthesized by ball mill grinder and phosphate solutions with various concentrations were performed. The results revealed that the maximum adsorption capacity (q max ) value of nSD-KF was 50,000 µg/g. In addition, the removal efficiency of nSD-KF significantly increased with the increase of initial phosphate concentration, contact time, temperature, and dosage. However, it decreased with the increase of pH and in double-system solution with the presence of ammonium ions. At the application study, the nSD-KF successfully removed 87.82% and 92.09% of phosphate from real agricultural wastewater in a batch experiment and in a column experiment, respectively. Adsorption efficiency of nSD-KF for phosphate increased after the first and second regeneration cycles, but it decreased after the third and fourth cycles. The poor to moderate phosphate desorption from nSD-KF sorbent indicates the stability of phosphate bound to nSD-KF materials. Regardless, biodegradability of nSD-KF-loaded phosphate is possible, and it will be a good source of phosphate to a plant when added to the agricultural soil as a supplemental application of fertilizer. In conclusion, nSD-KF could be considered as a promising lignocellulosic biomaterial used for the removal of phosphate from waters as bio-sorption process. fertilizer or compost are critical issues. Thus, new methods for removal of phosphate from agricultural wastewater before discharge into water bodies are required to reduce eutrophication problem.An efficient and promising method used to remove phosphate from water is adsorption. Low-cost, availability, and biodegradability of materials used in the removal of phosphate from waters are limiting factors [3,4]. Bio-sorption is the use of biomaterials in the removal of pollutants from agricultural wastewater, where the P-loaded bio-sorbent can be reused as compost for land application in the form of supplemental phosphorus fertilizer. For the efficient and cost-saving removal of phosphate from water, the lignocellulosic biomaterials could be used in typical or modified forms [5][6][7]. Woody sawdust is one of these lignocellulosic biomaterial used for this purpose due to its chemical constituents including easily available functional groups such as OH, COOH, and NH 2 , and other compounds such as phenols, alcohols, and aldehydes that are presented in cellulose, lignin, and hemicelluloses. These functional groups can be involved in a series of chemical reactions that are able to remove the pollutants from water [8,9].Green-synthesized nanoparticles (NPs) (<100 nm) are pr...

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“…The sorption capacities q (mg g −1 ) were calculated according to Equation (3), where C 0 is the initial concentration of metal ions (mg L −1 ), C r is the residual concentration of metal ions (mg L −1 ), V is the volume of the solution (L), and m is the mass of the biosorbent (g) [27]:…”

Section: Nickel Biosorptionmentioning

confidence: 99%

Isolation of Efficient Metal-Binding Bacteria from Boreal Peat Soils and Development of Microbial Biosorbents for Improved Nickel Scavenging

Virpiranta

Banasik

Taskila

et al. 2020

Water

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Boreal peatlands with low iron availability are a potential, but rarely studied, source for the isolation of bacteria for applications in metal sorption. The present research focused on the isolation and identification of Actinobacteria from northern Finland, which can produce siderophores for metal capture. The 16S rDNA analysis showed that isolated strains belonged to Firmicutes (Bacillus sp.) and Actinobacteria (Microbacterium sp.). The culture most efficiently producing siderophores in the widest array of the media was identified as Microbacterium sp. The most appropriate media for siderophore production by the Microbacterium strain were those prepared with glucose supplemented with asparagine or glutamic acid, and those prepared with glycerol or fructose supplemented with glutamic acid. The microorganism obtained and its siderophores were used to develop Sphagnum moss-based hybrid biosorbents. It was showed that the hybrid sorbent could bind nickel ions and that the nickel removal was enhanced by the presence of siderophores. Bacterial cells did not have a significant effect on sorption efficiency compared to the use of siderophores alone. The microbial biosorbent could be applied in the final effluent treatment stage for wastewater with low metal concentrations.

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Removal of metals from industrial wastewater and urban runoff by mineral and bio-based sorbents

Cited by 33 publications

References 19 publications

RETRACTED: Enhanced Adsorption of Zn(II) onto Graphene Oxides Investigated Using Batch and Modeling Techniques

RETRACTED: Enhanced Adsorption of Zn(II) onto Graphene Oxides Investigated Using Batch and Modeling Techniques

Optimum Operating Conditions for the Removal of Phosphate from Water Using of Wood-Branch Nanoparticles from Eucalyptus camaldulensis

Isolation of Efficient Metal-Binding Bacteria from Boreal Peat Soils and Development of Microbial Biosorbents for Improved Nickel Scavenging

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