Bioaccumulation and biosorption of zinc by a novel Streptomyces K11 strain isolated from highly alkaline aluminium brown mud disposal site

Sedláková-Kaduková, Jana; Kopčáková, Anna; Grešaková, Ľubomíra; Godány, Andrej; Pristaš, Peter

doi:10.1016/j.ecoenv.2018.09.123

Cited by 57 publications

(21 citation statements)

References 32 publications

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“…Conversely, sorption capacity of NSP for halosulfuron methyl was increased with each rise in initial concentration. This performance was assigned to the fact that ratio of halosulfuron methyl molecules to binding sites of NSP was small at low initial concentration that results to small sorption capacity 51 . Nevertheless, as initial concentration was raised, this ratio was also increased and resultantly sorption capacity was found maximum at higher initial concentration.…”

Section: Resultsmentioning

confidence: 99%

Mechanisms of halosulfuron methyl pesticide biosorption onto neem seeds powder

Saeed

Usman

Zahoor

et al. 2021

Sci Rep

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The current investigation was designed to remove halosulfuron methyl from aqueous media by means of neem seed powder (NSP) in batch modes. Characterizations of NSP were carried out by using EDX, SEM, FTIR, point of zero charge and surface analysis. Optimum operation conditions were scrutinized by studying the influence of different factors like solution pH, dose of NSP, contact time, initial halosulfuron methyl concentration and temperature. Result indicates the dependency of the removal of halosulfuron methyl on solution pH and maximal removal (54%) was achieved in acidic medium (i.e. pH 3.0). To identify the chemical surface of NSP, point of zero charge of NSP was determined and was found to be 6.5 which imply that the surface of NSP is positively charged below pH 6.6 and favored the anionic sorption. Kinetics of halosulfuron methyl were demonstrated well by pseudo second order due to highest R2 (0.99) owing to the nearness between experimental and calculated sorption capacities. Isotherm results imply that Langmuir was found to the principal model to explain the removal of halosulfuron methyl and maximum monolayer sorption capacity was determined to be 200 mg g−1. Thermodynamic parameters like ΔH°, ΔG° and ΔS° were calculated from van’t Hoff plot and were found negative which suggest that removal of halosulfuron methyl is exothermic and spontaneous at low temperature. These outcomes insinuate that neem seed power may be a valuable, inexpensive and ecofriendly biosorbent for the removal of pesticides.

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Section: Resultsmentioning

confidence: 99%

Mechanisms of halosulfuron methyl pesticide biosorption onto neem seeds powder

Saeed

Usman

Zahoor

et al. 2021

Sci Rep

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“…A comparison of the two spectra, stacked together are also shown in Figure 5. Sedlakova-Kadukova et al, 2019;Chairat & Bremmer, 2016;Hannachi et al, 2013;Yang et al, 2010;Ngabura et al, 2018 Peaks that were observed to have shifted before and after biosorption were evaluated and associated with functional groups based on recent related zinc biosorption studies (Sedlakova-Kadukova et al, 2018;Chairat & Bremmer, 2016;Hannachi et al, 2013;Yang et al, 2010;Ngabura et al, 2018). The data suggest the involvement of O-H, N-H, aliphatic, C=O, amide, and phosphate groups in Zn 2+ sequestration.…”

Section: Resultsmentioning

confidence: 99%

“…Water pollution is primarily caused by the accumulation of toxic heavy metals and the removal of such in different bodies of water, especially those near industries, is a priority in maintaining water quality standards (Teimouri et al, 2016). Zinc, as Zn 2+ , is a common heavy metal found in industrial effluents (Ngabura et al, 2018;Sedlakova-Kadukova et al, 2019). Though zinc is an essential micronutrient for all forms of life, an excess amount of this renders it Figure 1.…”

Section: Introductionmentioning

confidence: 99%

An Investigation on Zinc Biosorption with Agar Extraction Waste from Gracilaria tenuistipitata

Carisma¹,

Gonzales²,

Lazaro-Llanos³

2020

KIMIKA

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This study determined the biosorption capacity of algal waste, obtained through agar extraction from Gracilaria tenuistipitata, a common red seaweed in the Philippines and potential biosorbent, on Zn2+ ions. Agar was extracted from the seaweed and characterized through Fourier-transform infrared spectroscopy (FT-IR). The algal waste was then subjected to a biosorption study involving various Zn2+ standards. Atomic absorption spectroscopy (AAS) and FT-IR were employed to evaluate sorption processes. Biosorption data was analyzed using Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherms which yielded values of 0.9680, 0.8103, and 0.5254, respectively. The Langmuir ( ), Freundlich ( ), and D-R ( ) constants garnered were 0.0231 L/mg, 0.9829 mg/g, and 2.159 10-6 mol2 J-2 respectively, qualifying the adsorption of Zn2+ ions onto the algal waste as a favorable and physical process. FT-IR spectra analysis suggests that carboxylic acid and amide groups are involved in biosorption, possibly an ion-exchange process taking place for the uptake of Zn2+ ions. It was concluded that G. tenuistipitata waste is a promising biosorbent for Zn2+ ions. Performing the biosorption procedure in triplicates and the inclusion of kinetic studies are recommended to improve and ensure the accuracy in determining biosorption capacity and optimization in future studies.

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“…Data obtained from experiments undertaken by Sedlakova-Kadukova et al [66] revealed high biosorption and bioaccumulation ability of a novel, extremely Zn-tolerant Streptomyces K11 strain isolated from a highly alkaline aluminum brown mud disposal site. Their study of biosorption on non-living biomass revealed that this process is mainly chemically controlled, with a maximum biosorption capacity of 49.03 mg/g of streptomycete biomass.…”

Section: Zinc Removalmentioning

confidence: 99%

Biosorption and Bioaccumulation Abilities of Actinomycetes/Streptomycetes Isolated from Metal Contaminated Sites

2018

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Heavy metal pollution is of great concern. Due to expansion of industrial activities, a large amount of metal is released into the environment, disturbing its fragile balance. Conventional methods of remediation of heavy metal-polluted soil and water are expensive and inefficient. Therefore, new techniques are needed to provide environmentally friendly and highly selective remediation. Streptomycetes, with their unique growth characteristics, ability to form spores and mycelia, and relatively rapid colonization of substrates, act as suitable agents for bioremediation of metals and organic compounds in polluted soil and water. A variety of mechanisms could be involved in reduction of metals in the environment, e.g., sorption to exopolymers, precipitation, biosorption and bioaccumulation. Studies performed on biosorption and bioaccumulation potential of streptomycetes could be used as a basis for further development in this field. Streptomycetes are of interest because of their ability to survive in environments contaminated by metals through the production of a wide range of metal ion chelators, such as siderophores, which provide protection from the negative effects of heavy metals or specific uptake for specialized metabolic processes. Many strains also have the equally important characteristic of resistance to high concentrations of heavy metals.Separations 2018, 5, 54 2 of 14 materials, pesticides, phosphate fertilizers, printing pigments, textiles, sewage, irrigation, smelting, steel and electroplating industries, dyes, and wood preservation. While anthropogenic sources increasingly give rise to permanent pollution, natural sources are usually a seasonal phenomenon influenced by weather, which generally does not generate pollution [4].Many heavy metals are capable of entering the food chain, where they cause serious damage. The toxicity of each metal and their potential harmful effects depends on the amount, route of admission, and duration of exposure [5]. A major source of heavy metals in the soil is mining activities and subsequent ore processing. During these processes, metals are mobilized by biological or chemical leaching, and pass to the soil and nearby water sources. As a result of leaching, heavy metals migrate to the lower soil layers and cause destruction and alteration of the ecosystem, including accumulation of pollutants and a loss of biodiversity. The subsequent recovery could take several decades [6]. Techniques for Heavy Metals RemovalRemoval of pollutants in the form of heavy metals has become an urgent requirement in recent decades. Technologies routinely used for heavy metal removal from the environment include chemical precipitation, reverse osmosis, ion-exchange, ultrafiltration, and electro-dialysis. They are, unfortunately, often inefficient and extremely expensive. Moreover, they can generate toxic compounds, which are seen as unfavorable and uneconomical [7]. There is, therefore, an acute need for the development of cheap, highly efficient and selective alternatives that can allevia...

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Bioaccumulation and biosorption of zinc by a novel Streptomyces K11 strain isolated from highly alkaline aluminium brown mud disposal site

Cited by 57 publications

References 32 publications

Mechanisms of halosulfuron methyl pesticide biosorption onto neem seeds powder

Mechanisms of halosulfuron methyl pesticide biosorption onto neem seeds powder

An Investigation on Zinc Biosorption with Agar Extraction Waste from Gracilaria tenuistipitata

Biosorption and Bioaccumulation Abilities of Actinomycetes/Streptomycetes Isolated from Metal Contaminated Sites

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