Biosorption removal of benzene and toluene by three dried macroalgae at different ionic strength and temperatures: Algae biochemical composition and kinetics

Flores-Chaparro, Carlos E.; Cházaro-Ruiz, Luis F.; Torre, M.C Alfaro de la; Huerta-Díaz, Miguel Ángel; Rangel-Mendez, J. Rene

doi:10.1016/j.jenvman.2017.02.005

Cited by 49 publications

(22 citation statements)

References 40 publications

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“…32 Al-Zaben and Mekhamer 36 used a washed and boiled coffee waste to retain 4-chloro-2-methyl phenoxy acetic acid, an organic pesticide, with a maximum capacity adsorption of 340 mg/g. 32 Flores-Chaparro et al 33 tested three macroalgae (brown, green, and red) as biosorbents for toluene and benzene, two of the most soluble hydrocarbons. Brown macroalgae registered the highest removal capacities, 112 mg/g and 28 mg/g for benzene and toluene, respectively.…”

Section: Environmental Science and Technologymentioning

confidence: 99%

A Review on Biological Processes for Pharmaceuticals Wastes Abatement—A Growing Threat to Modern Society

Costa

Lago

Rocha

et al. 2019

Environ. Sci. Technol.

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Over the last decades, the production and consumption of pharmaceuticals and health care products grew manifold, allowing an increase in life expectancy and a better life quality for humans and animals, in general. However, the growth in pharmaceuticals production and consumption comes with an increase in waste production, which creates a number of challenges as well as opportunities for the waste management industries. The conventional current technologies used to treat effluents have shown to be inefficient to remove or just to reduce the concentrations of these types of pollutants to the legal limits. The present review provides a thorough state-of-the-art overview on the use of biological processes in the rehabilitation of ecosystems contaminated with the pharmaceutical compounds most commonly detected in the environment and eventually more studied by the scientific community. Among the different biological processes, special attention is given to biosorption and biodegradation.

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Section: Environmental Science and Technologymentioning

confidence: 99%

A Review on Biological Processes for Pharmaceuticals Wastes Abatement—A Growing Threat to Modern Society

Costa

Lago

Rocha

et al. 2019

Environ. Sci. Technol.

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“…Algal biomass has a great potential to bind dyes, especially organic dyes in the form of cations as well as metal ions. Several studies have shown that live algae and its biomass may absorb organic cations and metal ions [21,22]. To increase the capacity and rate of algal adsorption on adsorbents absorbed as well as physical and chemical stability, various attempts were made including modifying algal biomass using various supporting matrix in the form of inorganic and organic materials [2,19].…”

Section: Introductionmentioning

confidence: 99%

Application of Modified Green Algae Nannochloropsis sp. as Adsorbent in the Sequential Adsorption of Methylene Blue and Cu(II) Cations in Solution

Buhani

Wijayanti

Suharso

et al. 2020

Preprint

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Biomass of algae is a very potent adsorbent for absorbing liquid waste containing heavy metals and organic dyes. This study purposes to confirm the ability of adsorbents from green algae Nannochloropsis sp. modified with silica (ASN) and followed by coating magnetite particles (ASN-MPs) to absorb simultaneously the mixture of methylene blue (ME) and Cu(II) cations in aqueous solution. Simultaneous sorption of ME and Cu(II) cations to ASN and ASN-MPs was carried out by the Batch method with the interaction pH condition 7, contact time (15–120 minutes), and initial concentrations of ME and Cu(II) cations (0.1–1.0 mmol·L− 1). The simultaneous sorption parameters of ME and Cu(II) cations by ASN-MPs trend to comply the pseudo-second-order kinetics model by rate constant values for pseudo-second-order (k2), respectively 8.98 × 10− 3 and 9.78 × 10− 3 (g·mmol− 1·min− 1). The ME adsorption pattern and Cu(II) cations in the competition on ASN-MPs adsorbents, each tends to follow the Freundlich and Langmuir adsorption isotherms. Based on adsorption data, Cu(II) cations have a greater adsorption rate and capacity (qexp) compared to ME at the same contact time and initial concentration. Modified adsorbent from algae Nannochloropsis sp. with silica matrix and magnetite particle coating, is an adsorbent that has a high effectiveness in the collective sorption of ME and Cu(II) cations. Therefore, these adsorbents can be used for the adsorption of cation mixtures of heavy metals and organic dyes that are cationic in solution.

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“…Solar‐driven and autotrophic microalgae exist in many habitats (from freshwater to marine) and are widely available . Brierley and Brierley demonstrated sulfide generation in natural systems as a result of micro‐algal biomass degradation.…”

Section: Introductionmentioning

confidence: 99%

Effective bioremediation of Cu(II) contaminated waters with immobilized sulfate‐reducing bacteria‐microalgae beads in a continuous treatment system and mechanism analysis

Xiao-hu

Geng

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Microalgae which have greater biodegradable fractions than other organics were chosen as a carbon source for sulfate‐reducing bacteria (SRB). Immobilized SRB–microalgae beads were then prepared and used for bioremediation of synthetic copper mine wastewater. RESULTS Hydrolysis fermentation of the microalgae was observed and it was noted that the microalgae were first degraded to volatile fatty acids by co‐existing fermentative bacteria; they then served as a carbon source for SRB. Freshly prepared immobilized SRB beads not only possessed high mechanical strength and mass transfer ability, but also showed better sulfate reduction than that of suspended SRB. Immobilized SRB‐Scenedesmus obliquus beads packed in the upflow bioreactor were suitable for the treatment of copper mine wastewater, as shown by the high removal efficiency of their sulfate (182.17 mg SO42‐ g‐1 microalgae day‐1) and copper ions (45.28 mg Cu2+ g‐1 microalgae day‐1), and low discharge of chemical oxygen demand. After the reaction, metal sulfides were not produced on the bead surfaces, but likely within them. CONCLUSIONS The anaerobic bioreactor, filled with immobilized SRB‐Scenedesmus obliquus beads, demonstrated excellent removal efficiency and low discharge of chemical oxygen demand, which may provide a promising strategy for dealing with heavy metal pollution in water. © 2017 Society of Chemical Industry

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Biosorption removal of benzene and toluene by three dried macroalgae at different ionic strength and temperatures: Algae biochemical composition and kinetics

Cited by 49 publications

References 40 publications

A Review on Biological Processes for Pharmaceuticals Wastes Abatement—A Growing Threat to Modern Society

A Review on Biological Processes for Pharmaceuticals Wastes Abatement—A Growing Threat to Modern Society

Application of Modified Green Algae Nannochloropsis sp. as Adsorbent in the Sequential Adsorption of Methylene Blue and Cu(II) Cations in Solution

Effective bioremediation of Cu(II) contaminated waters with immobilized sulfate‐reducing bacteria‐microalgae beads in a continuous treatment system and mechanism analysis

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