Removal of metal ions from a petrochemical wastewater using brown macro-algae as natural cation-exchangers

Cechinel, Maria Alice Prado; Mayer, Diego A.; Pozdniakova, Tatiana A.; Mazur, Luciana P.; Boaventura, Rui A.R.; Souza, Antônio Augusto Ulson de; Souza, Selene M.A. Guelli U. de; Vilar, Vítor J.P.

doi:10.1016/j.cej.2015.10.042

Cited by 107 publications

(31 citation statements)

References 68 publications

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“…It was also noted that the sum of ions bound to biomass was similar to the sum of metals displaced from the biomass. In fact, the natural cation exchanging properties of seaweed were well explained due to the presence of functional groups, such as carboxylic and sulfonic groups, on the surface of all red, brown, and green seaweeds [119,120,121,122]. These abovementioned chemical compositions of cell wall vary considerably among different types of seaweeds and the key difference in the cell wall matrix explained the variance in the affinity of brown, green, and red seaweeds for metal biosorption [123].…”

Section: Seaweed Application In Wastewater Treatmentmentioning

confidence: 99%

Treatment of Wastewater Using Seaweed: A Review

Arumugam

Chelliapan

Kamyab

et al. 2018

IJERPH

114

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Inadequately treated or untreated wastewater greatly contribute to the release of unwanted toxic contaminants into water bodies. Some of these contaminants are persistent and bioaccumulative, becoming a great concern as they are released into the environment. Despite the abundance of wastewater treatment technologies, the adsorption method overall has proven to be an excellent way to treat wastewater from multiple industry sources. Because of its significant benefits, i.e., easy availability, handling, and higher efficiency with a low cost relative to other treatments, adsorption is opted as the best method to be used. However, biosorption using naturally found seaweeds has been proven to have promising results in removing pollutants, such as dyes from textile, paper, and the printing industry, nitrogen, and phosphorous and phenolic compounds, as well as heavy metals from various sources. Due to its ecofriendly nature together with the availability and inexpensiveness of raw materials, biosorption via seaweed has become an alternative to the existing technologies in removing these pollutants from wastewater effectively. In this article, the use of low-cost adsorbent (seaweed) for the removal of pollutants from wastewater has been reviewed. An extensive table summarises the applicability of seaweed in treating wastewater. Literature reported that the majority of research used simulated wastewater and minor attention has been given to biosorption using seaweed in the treatment of real wastewater.

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Section: Seaweed Application In Wastewater Treatmentmentioning

confidence: 99%

Treatment of Wastewater Using Seaweed: A Review

Arumugam

Chelliapan

Kamyab

et al. 2018

IJERPH

114

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“…Numerous studies from literature have been presented the ability of different types of marine algae biomass to retain various heavy metals ions (Pb(II), Cd(II), Cu(II), Cr(VI), etc.) from aqueous media [24][25][26], and the encouraging results have indicate the potential applicability of this renewable resource in the adsorption processes. Unfortunately, their moderate adsorption capacities have drastically limited the use of such biomass in industrial-scale decontamination processes, for economic reasons.…”

Section: Introductionmentioning

confidence: 93%

Adsorption of Cu(II) Ions on Adsorbent Materials Obtained from Marine Red Algae Callithamnion corymbosum sp.

Lucaci

Bulgariu

Popescu³

et al. 2020

Water

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In recent years, studies on the more efficient use of natural materials in adsorption processes have increased significantly. Thus, obtaining new adsorbents from marine algae biomass with higher adsorptive performance will ensure a better use of these renewable resources. In this study, the adsorption of Cu(II) ions from aqueous solution was done using three types of adsorbent materials obtained from marine red algae biomass (Callithamnion corymbosum sp.), namely: alginate (Alg), algae waste biomass resulted after alginate extraction (AWB) and iron nanoparticles functionalized with alginate (Fe-NPs-Alg), compared to raw marine red algae biomass (RAB). FTIR spectra and SEM images recorded for each type of adsorbent indicate a porous structure and the presence of various superficial functional groups who may be involved in the retention of Cu(II) ions. The biosorption experiments were performed in a batch system, at different initial Cu(II) ion concentrations and contact times, maintaining a constant initial solution pH (4.4), adsorbent dose (2.0 g/L), and temperature (25 ± 1 °C). The obtained results indicate that the retention of Cu(II) ions requires a maximum of 60 min to reach equilibrium, and the maximum adsorption capacity increases in order: RAB (47.62 mg/g) < Fe-NPs-Alg (52.63 mg/g) < AWB (83.33 mg/g) < Alg (166.66 mg/g). The quantitative removal of Cu(II) ions from aqueous effluents can be done in two successive adsorption stages, using AWB (in the first stage) and Fe-NPs-Alg (in the second stage), when the treated solution has a Cu(II) ions concentration below the maximum permissible limit. The quantitative recovery of retained Cu(II) ions (over 97%) can be done by treating these exhausted adsorbent materials with 0.1 N HNO3 solution. Therefore, the extraction of alginate from marine red algae biomass could be a viable solution to obtain efficient adsorbent materials for Cu(II) ions removal from aqueous media, and allow for a better valorisation of marine red algae biomass.

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“…A presença de metais pesados altamente móveis nas águas superficiais e subterrâneas, nos solos e nos sedimentos representa grave risco à saúde humana e ao meio ambiente, em razão, sobretudo, da alta toxicidade desses elementos. Além de tóxicos, os metais pesados são bioacumuláveis, ou seja, acumulam-se nos organismos ao longo da cadeia alimentar, podendo causar diversas doenças (CECHINEL et al, 2016;MOGHAL, 2016).…”

Section: Introductionunclassified

Solo tratado com cimento para sorção de Pb2+, Cd2+, Cr3+ e As5+ em barreiras reativas permeáveis

Santos

Azevedo

Assis

et al. 2020

Eng. Sanit. Ambient.

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RESUMO A contaminação do meio ambiente tem origem principalmente na exploração de recursos naturais e na produção industrial, que geram resíduos que normalmente acabam dispostos nos solos ou nas águas. Uma das soluções encontradas para a remediação de águas subterrâneas contaminadas é o isolamento da região (pluma) com barreiras reativas permeáveis. Nesse contexto, o objetivo deste trabalho foi avaliar a sorção de chumbo (Pb2+), cádmio (Cd2+), cromo (Cr3+) e arsênio (As5+) por dois solos, com doses de 1, 2 e 4% de cimento Portland. Ensaios de equilíbrio em lote foram realizados com soluções monoespécie de Pb2+, Cd2+, Cr3+ e As5+. Com os valores de concentração de equilíbrio do soluto na solução (Ce) e da massa de soluto sorvida por massa de solo (S), obtiveram-se isotermas de sorção, segundo os modelos de Langmuir e Freundlich. Os dados obtidos após ajuste dos modelos foram submetidos a análise de regressão para avaliar o efeito das doses de cimento. A elevação do pH provocada pela adição de cimento impossibilitou, para a maioria dos elementos em ambos os solos, ajustar os modelos teóricos de Freundlich ou Langmuir por conta da precipitação preponderante dos metais. O sorvente analisado que melhor satisfez às condições de sorção, tanto para o arsênio quanto para o chumbo, foi o solo arenoso com adição de 2% de cimento. Já para o cádmio, foi o solo argiloso com 1% de cimento. Para o cromo não foi possível estabelecer a melhor dose de cimento em razão da completa precipitação do metal em todas as doses avaliadas.

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Removal of metal ions from a petrochemical wastewater using brown macro-algae as natural cation-exchangers

Cited by 107 publications

References 68 publications

Treatment of Wastewater Using Seaweed: A Review

Treatment of Wastewater Using Seaweed: A Review

Adsorption of Cu(II) Ions on Adsorbent Materials Obtained from Marine Red Algae Callithamnion corymbosum sp.

Solo tratado com cimento para sorção de Pb2+, Cd2+, Cr3+ e As5+ em barreiras reativas permeáveis

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