scholarly journals COMPETITIVE BIOSORPTION OF CHROMIUM AND LEAD INTO SALVINIA NATANS MACROPHYTE

2015 ◽  
Author(s):  
L. K. S. LIMA ◽  
C. E. BENTO ◽  
M. G. C. SILVA ◽  
M. G. A. VIEIRA
Keyword(s):  
Competitive Biosorption ◽  
Salvinia Natans

Competitive Biosorption of Pb(II) and Cu(II) by Functionalised Micropogonias undulates Scales

2020 ◽  
Vol 13 ◽  
Author(s):  
Joshua O. Ighalo ◽  
Ibrahim O. Tijani ◽  
Oluwaseun J. Ajala ◽  
Fisayo O. Ayandele ◽  
Omodele A. Eletta ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Low Cost ◽  
Fish Scales ◽  
Wet Impregnation ◽  
Monolayer Adsorption ◽  
Competitive Biosorption ◽  
Langmuir Isotherm Model ◽  
Pseudo Second Order ◽  
Ft Ir ◽  
Best Fit

Background: Modified bio-based adsorbents from plant sources can be used for pollution remediation by adsorption due to their low cost and availability in large quantities. Objective: In this study, the competitive biosorption of Pb(II) and Cu(II) by Micropogonias undulates functionalised fish scales (FFS) was conducted. The functionalisation was done by wet impregnation with Fe2+. Method: The biosorbent was characterised by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy (SEM-EDS) and Branueur–Emmett–Teller (BET) analyses. Results: The major constituents in the FFS were calcium and phosphorus from the collagen and apatite on the scales. Optimum removal efficiency for both metals was >99% at 10 g/l dosage. It was observed that the Langmuir isotherm model and the pseudo second order kinetics model were the best fit for the experimental data. The monolayer adsorption capacity of FFS for Pb(II) and Cu(II) was observed to be 96.15 mg/g and 100 mg/g respectively. Conclusion: The study revealed that the competitive biosorption of heavy metals can be achieved (at a good adsorption capacity) using functionalised Micropogonias undulates fish scales.

Distribution pattern of epiphytic microcrustaceans in relation to different macrophyte microhabitats in a shallow wetland (Upo wetlands, South Korea)

2015 ◽  
Vol 44 (2) ◽  
Author(s):  
Jong-Yun Choi ◽  
Seong-Ki Kim ◽  
Kwang-Seuk Jeong ◽  
Gea-Jae Joo
Keyword(s):  
Organic Matter ◽  
Particulate Organic Matter ◽  
Submerged Macrophytes ◽  
Submerged Macrophyte ◽  
Ceratophyllum Demersum ◽  
Suitable Habitat ◽  
Seasonal Growth ◽  
Spirodela Polyrhiza ◽  
Macrophyte Species ◽  
Salvinia Natans

AbstractMacrophytes determine the physical complexity of aquatic environments and provide a suitable habitat for colonization by microcrustaceans. We evaluated the effects of a seasonal growth pattern and structure of macrophyte species on epiphytic microcrustaceans collected from macrophyte surfaces (stems and leaves) in shallow wetlands from May 2011 to October 2012. In 2011, epiphytic microcrustaceans that preferred free-floating macrophytes (Spirodela polyrhiza and Salvinia natans) and submerged macrophytes (Potamogeton crispus and Ceratophyllum demersum) were affected by the seasonal growth of these species. Epiphytic microcrustaceans were abundant on the surface of Spirodela polyrhiza in June and August and on Salvinia natans in September and October. In 2012, epiphytic microcrustaceans preferred submerged macrophyte species over the free-floating ones. The results of stable isotope analysis showed that epiphytic microcrustaceans depend on epiphytic particulate organic matter (EPOM) from each macrophyte species rather than on suspended particulate organic matter. Small species (Coronatella rectangula, Pleuroxus laevis, and Chydorus sphaericus) used EPOM (dominated by epiphytic algae) on free-floating and submerged macrophyte species; however, relatively larger species (Ilyocryptus spinifer and Macrothrix rosea) used EPOM only from submerged macrophytes. Based on these findings, we conclude that the distribution of epiphytic microcrustaceans is determined by seasonal characteristics, morphology of macrophyte species, and abundance of food resources.

Competitive biosorption of cadmium(II) and zinc(II) ions from binary systems by Sargassum filipendula

2010 ◽  
Vol 101 (14) ◽  
pp. 5104-5111 ◽  
Author(s):  
Aderval S. Luna ◽  
André L.H. Costa ◽  
Antonio Carlos A. da Costa ◽  
Cristiane A. Henriques
Keyword(s):  
Binary Systems ◽  
Competitive Biosorption ◽  
Sargassum Filipendula

scholarly journals Copper accumulation by the root and leaf biomass of Salvinia natans (L.) All. (Salviniaceae)

2021 ◽  
Vol 14 (7) ◽  
pp. 59-67
Author(s):  
Larissa Braun de Souza ◽  
Franciele de Freitas ◽  
Sabrine Lunardi ◽  
Janaina Saiz Cassins Von der Osten ◽  
Rafael Arruda ◽  
...  
Keyword(s):  
Culture Medium ◽  
Copper Ions ◽  
Cost Effective ◽  
Copper Accumulation ◽  
Leaf Biomass ◽  
Aquatic Environments ◽  
High Accumulation ◽  
Effective Option ◽  
Salvinia Natans ◽  
Cu Ions

Aquatic plants are often exposed to metal contamination. The study evaluated the bioaccumulation of copper (Cu) ions in aqueous solution by the biomass of leaves and roots of the macrophyte Salvinia natans. Plants of S. natans were submitted to culture solutions with different concentrations of Cu ions, evaluated at intervals of seven days. The leaf and root samples were separately subjected to atomic absorption spectroscopy with flame atomization to assess the concentration of copper accumulated in its biomass. The results demonstrated a pattern of accumulation dependent on the concentration of the metal in the culture medium and the time of exposure of the plants to the contamination. The accumulation was greater in the biomass of the roots when compared to the leaves. Throughout the experiment, toxicity symptoms were observed in the morphology of plants subjected to all copper concentrations, demonstrating the macrophyte's viability for bioindicating the toxicity of this metal in aquatic environments. A high accumulation of copper ions was obtained both in the biomass of the roots and leaves of the plants, confirming their potential bioaccumulator of Cu. The analysis of biomass suggests an important characteristic of metal compartmentalization by the plant, associating the absorption by the roots and the possible transfer to the leaves. In general, our results show that S. natans is an organism with a potential bioindicator and bioaccumulator of Cu and consists of a viable cost-effective option for phytoremediation of aquatic environments contaminated by metals

scholarly journals New locations of rare and protected plant species of the aquatic ecosystems of Minsk Region and National park “Belovezhskaya Pushcha”

2018 ◽  
Vol 63 (4) ◽  
pp. 437-446
Author(s):  
K. L. Savitskaya ◽  
М. A. Dzhus
Keyword(s):  
Plant Species ◽  
National Park ◽  
Aquatic Plant ◽  
New Information ◽  
New Locations ◽  
Salvinia Natans ◽  
The Republic ◽  
Data Deficient ◽  
First Time ◽  
Berula Erecta

There is a review of floral studies of the water bodies in Minsk Region and National Park “Belovezhskaya Pushcha”. 75 new locations of 20 rare aquatic and riverside plant species coming at the water and 1 hybrid were found. 7 of these species are listed in the Red Book of the Republic of Belarus, 5 species are included into the category of Least Concern and Data Deficient. Potamogeton berchtoldii Fieber, Utricularia minor L., Potamogeton acutifolius Link, P. nodosus Poir., Salvinia natans (L.) All. are reported for the first time from National Park «Belovezhskaya Pushcha». The spreading of Berula erecta (Huds.) Coville on the territory of National Park is considered in detail. New locations of Nuphar pumila (Timm) DC., Ranunculus kauffmannii Clerc., Najas major All., Berula erecta, Glyceria lithuanica (Gorski) Gorski, Conioselinum tatari­ cum Hoffm. in Minsk Region, which were not included in 4th edition of the Red Book, have been described. A brief description of habitat environmental conditions is given for the revealed species of aquatic plants, and their phytocoenotic confinement is also pointed out. New information on the locations of protected aquatic plant species should be used to monitor their populations and prepare the documents of protection.

scholarly journals Gibberellin-like substances in ontogenesis of the water fern Salvinia natans (Salviniaceae)

2016 ◽  
Vol 73 (5) ◽  
pp. 503-509 ◽  
Author(s):  
V.A. Vasyuk ◽  
◽  
R.V. Lichnevskiy ◽  
I.V. Kosakivska ◽  
◽  
...  
Keyword(s):  
Salvinia Natans

Competitive biosorption of Cu2+ and Ag+ ions on brown macro-algae waste: kinetic and ion-exchange studies

2019 ◽  
Vol 26 (23) ◽  
pp. 23416-23428 ◽  
Author(s):  
Welenilton José do Nascimento Júnior ◽  
Meuris Gurgel Carlos da Silva ◽  
Melissa Gurgel Adeodato Vieira
Keyword(s):  
Ion Exchange ◽  
Competitive Biosorption ◽  
Macro Algae
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