Development of waste biomass based sorbent for removal of cyanotoxin microcystin-LR from aqueous phases

Kim, Sok; Yun, Yeoung‐Sang; Choi, Yoon E.

doi:10.1016/j.biortech.2017.09.164

Cited by 28 publications

(11 citation statements)

References 47 publications

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“…In recent years, the increasing concerns over environmental changes and the decrease in water quality in recent years have led researchers from all around the world, to look for sustainable and low-cost materials that could be applied to improve water quality. Therefore, our interest is focused on eliminating of toxins that are a consequence of longer algae blooming seasons and cyanobacteria caused by an increasing temperature of water sources and nutrient runoff from agriculture [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Polymers 2019, 11, x FOR PEER REVIEW 2 of 19 a consequence of longer algae blooming seasons and cyanobacteria caused by an increasing temperature of water sources and nutrient runoff from agriculture [8][9][10][11]. Cellulose is a linear polysaccharide consisting of anhydroglucose units covalently linked by βglycosidic bonds β- (1)(2)(3)(4).…”

Section: Introductionmentioning

confidence: 99%

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Cellulose-Cyclodextrin Co-Polymer for the Removal of Cyanotoxins on Water Sources

et al. 2019

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With increasing global water temperatures and nutrient runoff in recent decades, the blooming season of algae lasts longer, resulting in toxin concentrations that exceed safe limits for human consumption and for recreational use. From the different toxins, microcystin-LR has been reported as the main cyanotoxin related to liver cancer, and consequently its abundance in water is constantly monitored. In this work, we report a methodology for decorating cellulose nanofibrils with β-cyclodextrin or with poly(β-cyclodextrin) which were tested for the recovery of microcystin from synthetic water. The adsorption was followed by Quartz Crystal Microbalance with Dissipation monitoring (QCM-D), allowing for real-time monitoring of the adsorption behavior. A maximum recovery of 196 mg/g was obtained with the modified by cyclodextrin. Characterization of the modified substrate was confirmed with Fourier Transform Infrared Spectroscopy (FT-IR), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric Analysis (TGA), and Atomic Force Microscopy (AFM).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cellulose-Cyclodextrin Co-Polymer for the Removal of Cyanotoxins on Water Sources

et al. 2019

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“…According to Kim et al . 35 , pH has a considerable impact on MC-LR adsorption when the compound contains many carboxyl, phosphonate groups, and amine groups, but has little effect on neutral compounds 36 . The performance of the HLB DGT for measuring MC-LR in solutions with various pH and ionic strength (IS) conditions is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

A new method based on diffusive gradients in thin films for in situ monitoring microcystin-LR in waters

Yao

Steinman

Wan

et al. 2019

Sci Rep

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The passive sampling method of diffusive gradients in thin-films (DGT) was developed to provide a quantitative and time-integrated measurement of microcystin-LR (MC-LR) in waters. The DGT method in this study used HLB (hydrophilic-lipophilic-balanced) material as a binding agent, and methanol as an eluent. The diffusion coefficient of MC-LR was 5.01 × 10−6 cm2 s−1 at 25 °C in 0.45 mm thick diffusion layer. This DGT method had a binding capacity of 4.24 μg per binding gel disk (3.14 cm2), ensuring sufficient capacity to measure MC-LR in most water matrices. The detection limit of HLB DGT was 0.48 ng L−1. DGT coupled to analysis by HPLC appears to be an accurate method for MC-LR monitoring. Comparison of DGT measurements for MC-LR in water and a conventional active sampling method showed little difference. This study demonstrates that HLB-based DGT is a useful tool for in situ monitoring of MC-LR in fresh waters.

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“…Despite possessing a lipophilic side chain of ADDA residue, molecules of microcystins are quite hydrophilic because of two carboxylic groups on its aspartic/glutamic acid side and one guanidine group on its arginine acid side [74]. Kim et al [75] applied industrial waste biomass of Escherichia coli to develop biosorbents for MC-LR immobilization. The authors created biomass stabilization with polysulfone, coating the polysulfone-biomass composite with polyethylenimine, and subsequent decarboxylation of coated material.…”

Section: Alternative Microcystin Separation Sorbentsmentioning

confidence: 99%

The Use of Biochar and Pyrolysed Materials to Improve Water Quality through Microcystin Sorption Separation

Frišták

Laughinghouse

Bell

2020

Water

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Harmful algal blooms have increased globally with warming of aquatic environments and increased eutrophication. Proliferation of cyanobacteria (blue-green algae) and the subsequent flux of toxic extracellular microcystins present threats to public and ecosystem health and challenges for remediation and management. Although methods exist, there is currently a need for more environmentally friendly and economically and technologically feasible sorbents. Biochar has been proposed in this regard because of its high porosity, chemical stability, and notable sorption efficiency for removing of cyanotoxins. In light of worsening cyanobacterial blooms and recent research advances, this review provides a timely assessment of microcystin removal strategies focusing on the most pertinent chemical and physical sorbent properties responsible for effective removal of various pollutants from wastewater, liquid wastes, and aqueous solutions. The pyrolysis process is then evaluated for the first time as a method for sorbent production for microcystin removal, considering the suitability and sorption efficiencies of pyrolysed materials and biochar. Inefficiencies and high costs of conventional methods can be avoided through the use of pyrolysis. The significant potential of biochar for microcystin removal is determined by feedstock type, pyrolysis conditions, and the physiochemical properties produced. This review informs future research and development of pyrolysed materials for the treatment of microcystin contaminated aquatic environments.

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Development of waste biomass based sorbent for removal of cyanotoxin microcystin-LR from aqueous phases

Cited by 28 publications

References 47 publications

Cellulose-Cyclodextrin Co-Polymer for the Removal of Cyanotoxins on Water Sources

Cellulose-Cyclodextrin Co-Polymer for the Removal of Cyanotoxins on Water Sources

A new method based on diffusive gradients in thin films for in situ monitoring microcystin-LR in waters

The Use of Biochar and Pyrolysed Materials to Improve Water Quality through Microcystin Sorption Separation

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