Results 51 to 60 of about 247 (138)

Reuse of the alginate extraction waste fromSargassum filipendulafor Ni(II) biosorption

Chemical Engineering Communications, 2019
This study was developed based on the possibility of reusing and valuing the alginate extraction residue (RES) from the algae Sargassum filipendula. The adsorptive properties of RES were explored through kinetic and equilibrium assays in batch mode, in which the kinetic equilibrium time (200 min) was not influenced by the increase of the initial ...
Bárbara Paulino Moino, Camila Stefanne Dias Costa, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira   +3 more
openaire   +1 more source

Synthesis of Fe3O4 Nanocatalyst Capped Citric Acid (Fe3O4-CA) from Sargassum filipendula

ALKIMIA : Jurnal Ilmu Kimia dan Terapan, 2022
The nanocatalyst Fe3O4 capped citric acid (Fe3O4-CA) was successfully synthesized using brown seaweed Sargassum filipendula. Sulfated polysaccharides contained in Sargassum filipendula extract contain sulfate, hydroxy, and aldehyde groups which cause Fe3+ reduction and nanoparticle stabilization.
openaire   +1 more source

Planejamento experimental estatístico para a otimização das condições em batelada de dessorção de níquel da alga marinha Sargassum filipendula = Statistical design of experiments for optimizing the batch conditions to nickel desorption on Sargassum filipendula seaweed

Acta Scientiarum: Technology, 2009
A fim de se realizar um estudo sobre os efeitos de parâmetros importantes na dessorção de níquel da alga marinha Sargassum filipendula, quatro agentes foram testados em grupos de planejamento fatorial 4.23 (tipo de eluente (E), carga de níquel (q ...
Araceli Aparecida Seolatto, Célia Regina Tavares, Eneida Sala Cossich, Edson Antonio da Silva, Terezinha Aparecida Guedes   +4 more
doaj  

Feofíceas novas e raras para o litoral brasileiro

Rodriguésia
Resumo Durante estudo sobre a flora marinha bentônica do litoral de Saquarema a Itacoatiara, Estado do Rio de Janeiro, foram coletadas feofíceas de pequeno porte epífitas em Sargassum filipendula C.
Gilberto M. Amado Filho, Yocie Yoneshigue-Valentin   +1 more
doaj   +1 more source

Remoção de níquel(II) de soluções aquosas pela biomassa Sargassum filipendula em múltiplos ciclos de sorção-dessorção = Removal of nickel (II) from aqueous solutions by Sargassum filipendula biomass in multiple cycles of sorption-desorption

Acta Scientiarum: Technology, 2009
Foi estudado o desempenho da alga marinha Sargassum filipendula na remoção de níquel de uma solução de concentração de 50 mg L-1 em pH 3,5, em colunas de leito fixo que operam em ciclos de adsorção/dessorção.
Araceli Aparecida Seolatto, Maurício Melo Câmara, Célia Regina Tavares, Eneida Sala Cossich, Edson Antonio da Silva   +4 more
doaj  

Evaluation of Metal Affinity of Ag⁺, Cd²⁺, Cr³⁺, Cu²⁺, Ni²⁺, Zn²⁺ and Pb²⁺ in Residue of Double Alginate Extraction from Sargassum filipendula Seaweed

Chemical Engineering Transactions, 2016
The continuous population growth and technological development are contributing factors to the increased contamination of effluents with toxic metals.
S.L. Cardoso, B.P. Moino, C.S.D. Costa, M.G.C. da Silva, M.G.A. Vieira   +4 more
doaj   +1 more source

Edible Film Berbahan Eucheuma Spinosum/Sargassum Filipendula/Chitosan dengan Rasio Berbeda Terhadap Kualitas Fisik

JFMR-Journal of Fisheries and Marine Research
Edible film merupakan lapisan tipis atau film yang terbuat dari komponen yang dapat dimakan dan berfungsi melapisi produk pangan. Bahan pembuatan edible film adalah dari kelompok karbohidrat, lemak, protein dan bahan pengemulsi serta bahan penstabil ...
Dwi Setijawati, Yahya Yahya, Happy Nursyam   +2 more
doaj   +1 more source

Biosorption of the Copper and Cadmium Ions - a Study through Adsorption Isotherms Analysis [PDF]

Bioautomation, 2007
In this work, the biosorption process of copper-cadmium ions binary mixture by using marine algae Sargassum filipendula was investigated. A set of experiments was performed to obtain equilibrium data for the given batch operational conditions - T=30°C ...
Marcia T. Veit, Carlos E. Borba, Edson A. Silva, Alexander D. Kroumov, Luiz G. L. Vaz, Marcia R. Fagundes-Klen   +5 more
doaj  

Biossorção de níquel e cromo de um efluente de galvanoplastia utilizando alga marinha pré-tratada em coluna - DOI: 10.4025/actascitechnol.v31i2.864

Acta Scientiarum: Technology, 2009
Este trabalho teve por objetivo o estudo da biossorção dos íons cromo e níquel presentes no efluente do processo de uma indústria de galvanoplastia, utilizando como biossorvente a biomassa de alga marinha pré-tratada Sargassum filipendula.
Márcia Teresinha Veit, Edson Antonio da Silva, Márcia Maria Fagundes-Klen, Célia Regina Granhen Tavares, Gilberto da Cunha Gonçalves   +4 more
doaj   +1 more source

Organic leaching and metal removal with Sargassum filipendula

, 2014
The biosorption process with algae is usually carried out with a concomitant alginate leaching process. Alginate is identified as the main functional group, responsible for generating the most active sites. Biomass chemical and thermal pretreatment is an alternative process for reducing organic leaching.
Veit, Márcia Teresinha, Gonçalves, Gilberto da Cunha, Fagundes-Klen, Marcia Regina, Silva, Edson Antonio da, Tavares, Celia Regina Granhen, Honorio, Jacqueline Ferandin   +5 more
openaire   +1 more source