Algal biomass from the stable growth phase as a potential biosorbent for Pb(<scp>ii</scp>) removal from water

Li, Yinta; Xia, Ling; Huang, Rong; Xia, Chenggong; Song, Shaoxian

doi:10.1039/c7ra06749f

Cited by 38 publications

(9 citation statements)

References 34 publications

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“…These findings are consistent with previous research. Li et al. (2017) showed that the ζ-potential of Desmodesmus bijugatus , Botryococcus sp, and Chlorella sp was negatively charged during all growth phases.…”

Section: Resultsmentioning

confidence: 99%

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Danouche

Ghachtouli

Aasfar

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Danouche

Ghachtouli

Aasfar

et al. 2022

Heliyon

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“…Li et al studied different surface functional groups for Chlorella sp. QB-102 at various growth phases to identify the optimal stage to harvest algae as the adsorbent . They identified that the algae had the lowest adsorption capacity when they were harvested during the algae decline phase, which was due to the lack of phosphoryl groups.…”

Section: Salt Removal Mechanisms For Algae-based Desalinationmentioning

confidence: 99%

“…QB-102 at various growth phases to identify the optimal stage to harvest algae as the adsorbent. 62 They identified that the algae had the lowest adsorption capacity when they were harvested during the algae decline phase, which was due to the lack of phosphoryl groups. The algae at the stable phase had the highest adsorption efficiency, which was attributed to the more effective active sites in carboxyl and higher site concentrations of phosphoryl and hydroxyl functional groups.…”

Section: ■ Introductionmentioning

confidence: 99%

Algae-Based Approach for Desalination: An Emerging Energy-Passive and Environmentally Friendly Desalination Technology

Zhang

Fan

Gray

et al. 2021

ACS Sustainable Chem. Eng.

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Desalination processes are critical for producing freshwater from salty water, and an algae-based desalination approach has drawn increasing attention as a potential low-cost and passive-energy desalination technology, which could be a competitive solution to desalination in remote areas impacted by water shortages. As the first comprehensive review in this emerging research field, a systematic analysis of the published results from the relevant studies is presented, and algae salt removal mechanisms are summarized. It is suggested that both nonmetabolic biosorption and metabolic-dependent bioaccumulation make contributions to salt removal, but bioaccumulation had a relatively minor role and required a significantly longer time for the reaction compared to the biosorption process. To select the most appropriate algae species for an algae-based desalination process, salt acclimation and salt removal abilities are considered as the two key selection criteria. Process configuration, influent water characteristics, algae harvesting, and reuse should also be taken into consideration during algae screening and selection. Based on the advantages and limitations of an algae-based desalination system, we have suggested different implementation strategies for algae-based desalination systems. Utilization of algae for brackish water treatment could be a more viable option compared to the seawater desalination. Combining an algae-based desalination system with wastewater treatment or the RO process could potentially improve the overall system economic feasibility. The focus areas of future studies are recommended, including system life-cycle cost analysis, energy efficient separation of algae from the effluent, mathematical simulation of the salt removal process, and the effects of engineering approaches on the salt removal process.

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“…Previous research in biosorption suggested that microalgae is an ideal biomaterial for the treatment of effluents with heavy metal since microalgae can effectively remove metal ions and metal complexes from solution ( Ahluwalia and Goyal, 2007 ; Romera, et al, 2007 ). Chlorella pyrenoidosa (Cp) is one of the most common microalgae, and its hydroxyl and phosphoryl functional groups have a good adsorption effect on Pb(II) ( Li, et al, 2017 ). The average particle size of Cp is mainly concentrated in the range of 10–20 μm, and the smallest particle size is close to 1 μm, which is difficult to recycle when dispersed in water.…”

Section: Introductionmentioning

confidence: 99%

3D printed cylindrical capsules as a Chlorella pyrenoidosa immobilization device for removal of lead ions contamination

et al. 2022

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Immobilization is considered as a promising strategy toward the practical applications of powdered adsorbent. Herein, three dimensional (3D) printing cylindrical capsules with cross-linked PVA hydrogels membrane in encapsulate Chlorella pyrenoidosa (Cp) were utilized for removal of lead ions. The chemical compositions, hydrogels performance and morphologies of the membranes were determined by Fourier transformed infrared spectroscopy (FTIR), cross-linking degree, swelling degree, membrane flux and scanning electron microscopy (SEM). It is found that PVA cross-linking structure is successfully synthesized on the surface of capsule body and cap due to the presence of PVA in the filament. The lead ions adsorption capacity related to initial concentration of 50 mg/L in 48 h is reached 75.61%, revealing a good removal ability. The self-floating 3D printed capsules device also shows an excellent recovering property. After 7 runs of adsorption experiment, the lead ions adsorption ratio remains 78.56%, which will bring a broad prospect in wastewater treatment, chemical slow release along with sample preparation and separation.

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Algal biomass from the stable growth phase as a potential biosorbent for Pb(ii) removal from water

Abstract: In this study, the effect of the growth phase on the Pb(ii) removal performance from water usingChlorellasp. QB-102 dry biomass was investigated.

Cited by 38 publications

References 34 publications

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Pb(II)-phycoremediation mechanism using Scenedesmus obliquus: cells physicochemical properties and metabolomic profiling

Algae-Based Approach for Desalination: An Emerging Energy-Passive and Environmentally Friendly Desalination Technology

3D printed cylindrical capsules as a Chlorella pyrenoidosa immobilization device for removal of lead ions contamination

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