Modeling geosmin removal in a full-scale filter

Coelho, Juliana A.; Azevedo, Diana C. S.; Silva, Ivanildo José da; Neto, José Capelo

doi:10.1590/0001-3765202020190453

Cited by 2 publications

(1 citation statement)

References 22 publications

(10 reference statements)

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“…While studying the adsorption of microcystins onto activated carbon fibers (ACF), Albuquerque Junior et al (2008) found that the structures of activated carbon from macadamia nutshell, dried coconut shell endocarp, and unripe coconut mesocarp were more suitable for the production of microporous carbons, while sugar cane bagasse and pinewood residues were better suited to the production of mesoporous carbons (Supplementary Material -Table SI). Some authors have demonstrated in their studies that the type of PAC was shown to be an important factor for the efficient removal of geosmin and saxitoxins with a coal-based carbon shown to be superior to a wood-based carbon using water from two different reservoirs (Capelo-Neto & Buarque 2016, Coelho et al 2020, Ho et al 2009.…”

Section: Activated Carbons Starting Materials and Pac Typementioning

confidence: 99%

Understanding the properties of activated carbon and biochar for the adsorption and removal of cyanotoxins: a systematic review

FROTA,

PINHEIRO,

IBRAIM

et al. 2023

An. Acad. Bras. Ciênc.

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Cyanotoxins pose a health threat when present in the drinking water supply since conventional water treatment processes are not effective in removing extracellular metabolites hence, advanced treatment techniques are usually applied. Powdered activated carbon (PAC) is an effective adsorbent for removing toxins. However, since a high volume is necessary, alternative adsorbents have been investigated. Biochar, especially from renewable sources, is a potential adsorbent material that could replace PAC for removing toxins. This paper aimed to investigate which PAC properties play key roles in cyanotoxin adsorption by a systematic review addressing the adsorption of toxins such as microcystins-LR (MC-LR), cylindrospermopsin (CYL), and saxitoxins (STXs).As a result, the review showed that some commonly adopted indices (i.e. total surface area) are not relevant to cyanotoxin adsorption, especially if appraised alone. Along with a multi-barrier approach, PAC has to be applied taking into account the complexity of the water system, which includes a better understanding of the characteristics of the adsorbent, the target toxin, and the aqueous medium. The biochar systematic review showed that no studies have yet been designed specifically for the removal of toxins.Since biochar has not yet been applied to water treatment processes, the knowledge gap is even greater than for PAC.

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Section: Activated Carbons Starting Materials and Pac Typementioning

confidence: 99%