Bioadsorptive removal of Pb(II) from aqueous solution by the biorefinery waste of Fucus spiralis

Filote, Catalina; Volf, Irina; Santos, Sílvia C.R.; Botelho, Cidália M.S.

doi:10.1016/j.scitotenv.2018.08.210

Cited by 71 publications

(27 citation statements)

References 35 publications

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“…The second desorption method uses salts such as CaCl 2 , Ca(NO 3 ) 2 , NaCl, and NaHCO 3 , which provide competing cations for ion exchange with adsorbates. In contrast, anions present in salt solutions: HCO 3 − , CO 3 2− , Cl − , and SO 4 2− , can destabilize the biosorbent-metal complex and capture bound metal ions to form complexes with them [114,115]. A complexing agent such as EDTA can also be used for the desorption process, which forms a stable complex with heavy metal ions, being a competitor to the sorbent [116,117].…”

Section: Desorption Of Biosorbentmentioning

confidence: 99%

Towards a Circular Economy: Analysis of the Use of Biowaste as Biosorbent for the Removal of Heavy Metals

Madeła

Skuza

2021

Energies

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Industrial human activity has led to the release of substantial amounts of heavy metals into the environment. Contamination of water with heavy metals such as lead, cadmium, copper, zinc, chromium, or nickel represents a serious problem. As part of the circular economy, it is appropriate to use biowaste from agriculture, fisheries, and the timber industry as biosorbents. In this literature review, the potential of using these biowaste groups as biosorbents for metal removal is presented. This biowaste is characterized by the presence of carboxyl, hydroxyl, carbonyl, amide, amine, sulfydryl, and other groups on their surface, which form complexes and chelates with metals present in water. Biosorption seems to be a potential alternative to conventional technologies for removing or recovering heavy metals from water or wastewater, which are uneconomical and generate additional waste. The paper demonstrates that harnessing the potential of biowaste to remove metals is beneficial to the environment as they can solve the problem of incineration and realise recycling that meets the circular economy. Although the choice of a suitable biosorbent for the removal of a particular metal involves a lot of research, the high biosorption efficiency, low cost, and renewability justify their use.

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Section: Desorption Of Biosorbentmentioning

confidence: 99%

Towards a Circular Economy: Analysis of the Use of Biowaste as Biosorbent for the Removal of Heavy Metals

Madeła

Skuza

2021

Energies

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“…Many performed studies achieved a complete biomass conversion, leading the path towards a zero-waste biorefinery. After the isolation of macroalgal extractives like pigments (Balboa et al 2015;Francavilla et al 2015;Baghel et al 2016) or polysaccharides (Kumar et al 2013;Yuan and Macquarrie 2015a;Masarin et al 2016) and the production of bioethanol (Kumar et al 2013;Baghel et al 2015Baghel et al , 2016 or biogas (Alvarado-Morales et al 2015), the residue was converted into biochar (Francavilla et al 2015;Yuan and Macquarrie 2015a), biosorbent for heavy metals (Sunwoo et al 2016;Filote et al 2019) or studied for its potential as soil conditioner (Baghel et al 2016). Table 8 presents up-to-date information regarding the studies that have been performed so far on this topic and the obtained results.…”

Section: Integrated Processing Of Marine Macroalgaementioning

confidence: 99%

Biorefinery of marine macroalgae into high-tech bioproducts: a review

et al. 2020

Self Cite

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Pollution and climate change induced by fossil fuel usage are calling for the development of a circular bioeconomy based on carbon neutral resources such as marine macroalgae, also named seaweeds. Macroalgal biomass can generate biofuels and valuable bioproducts such as hydrocolloids and other unique biomolecules. Biorefinery of marine macroalgae involves a minimum use of energy and chemicals, and low waste generation, as demonstrated in recent laboratory-scale studies. Here, we review biorefinery of marine macroalgae with focus on non-energy bioproducts and advances in the separation of biomolecules. We found that metabolites with bioactive properties are in high demand for food, cosmetic, medicine and pharmaceutical industries. These metabolites can be obtained together with energy products to improve macroalgae valorization. Emerging extraction methods facilitate the generation of more qualitative bioproducts in higher yields with less energy.

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“…Q = K tQ 1 + K tQ (10) where K1 (min −1 ) represents the rate constant of the pseudo-first order kinetic equation and K2 (g• mg −1 • min −1 ) is the rate constant of the pseudo-second order kinetic equation. Qe (mg•g −1 ) is the adsorption capacity of HHTB for Pb 2+ during equilibrium.…”

Section: Bath Adsorptionmentioning

confidence: 99%

“…Therefore, the treatment of Pb pollution in wastewater has attracted much attention for scientists. In recent years, domestic and foreign scholars have conducted a lot of research and developed a variety of effective treatment techniques, such as chemical precipitation [5], ion exchange [6], electrolysis [7], biosorption [8][9][10][11], membrane separation [12], photo reduction and other treatment methods [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Lead (II) from Aqueous Solution with High Efficiency by Hydrothermal Biochar Derived from Honey

Wang

Liao

et al. 2020

IJERPH

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A novel natural honey hydrothermal biochar (HHTB) was prepared using natural honey as raw material. The as-prepared adsorbent was applied to adsorb Pb2+ from aqueous solution and characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy to investigate the structure and morphology change of the adsorbent before and after Pb2+ adsorption. The influence of the pH, initial Pb2+ concentration, temperature, and contact time on the adsorption of Pb2+ was systematically investigated. The results revealed that the adsorption capacity for Pb2+ is up to 133.2 mg·g−1 at initial pH of 5.0 and adsorption temperature of 298 K. Meanwhile, the adsorption of Pb2+ on HHTB can be well fitted by the pseudo-second-order model and Langmuir isotherm model. The adsorbent had great selectivity for Pb2+ from the aqueous solution containing coexisting ions including Cd2+, Co2+, Cr3+, Cu2+, Ni2+ and Zn2+. Furthermore, the adsorption of Pb2+ on HHTB was attributed to complexation coordination, where it involved hydroxyl and carboxylic groups on HHTB in the process of adsorption of Pb2+.

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Bioadsorptive removal of Pb(II) from aqueous solution by the biorefinery waste of Fucus spiralis

Cited by 71 publications

References 35 publications

Towards a Circular Economy: Analysis of the Use of Biowaste as Biosorbent for the Removal of Heavy Metals

Towards a Circular Economy: Analysis of the Use of Biowaste as Biosorbent for the Removal of Heavy Metals

Biorefinery of marine macroalgae into high-tech bioproducts: a review

Adsorption of Lead (II) from Aqueous Solution with High Efficiency by Hydrothermal Biochar Derived from Honey

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