Optimized treatment of wastewater containing cytotoxic drugs by living and dead biomass of the freshwater microalga, Chlorella vulgaris

Habibzadeh, Mehrnaz; Chaibakhsh, Naz; Naeemi, Akram Sadat

doi:10.1016/j.ecoleng.2017.12.001

Cited by 30 publications

(3 citation statements)

References 26 publications

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“…6 Chlorella pyrenoidosa (C. pyrenoidosa) has been widely used to evaluate the bioavailability and toxicity of xenobiotics in natural waters due to its high sensitivity to the pollutants. Because of the pivotal role of microalgae in the ecosystem, the biodegradation and physiological effect of pesticides, 7 heavy metals, 8 nano-particles, 9 pharmaceuticals, 10 cytotoxin, 11 and other chemicals 12 have been widely investigated in recent years.…”

Section: ■ Introductionmentioning

confidence: 99%

Biodegradation of Chiral Flufiprole in Chlorella pyrenoidosa: Kinetics, Transformation Products, and Toxicity Evaluation

Gao

Wang

Jiang

et al. 2020

J. Agric. Food Chem.

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Pesticide pollution of surface water represents a considerable risk for algae and thus affects the structure and stability of aquatic ecosystems. To investigate the risk of flufiprole to phytoplankton, the digestion and uptake of flufiprole as well as the toxic effects of flufiprole enantiomers and the six metabolites to Chlorella pyrenoidosa were investigated. Flufiprole enantiomers were mainly metabolized to flufiprole amide and detrifluoromethylsulfinyl flufiprole in culture medium, while various metabolites were formed in algae, notably the amide derivative and fipronil. Chlorella pyrenoidosa showed a strong absorption capacity for the flufiprole series. The EC50 values (96 h) indicated that fipronil was the most toxic compound, approximately 5 times as toxic as rac-flufiprole. R-flufiprole was more toxic than S-flufiprole. The contents of chlorophylls, malondialdehyde (MDA), reactive oxygen species (ROS), and total antioxidant capacity (T-AOC) were significantly altered by the chemicals in most cases, especially fipronil. Our results supported the potential detrimental effect of the metabolites of flufiprole on algae.

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Section: ■ Introductionmentioning

confidence: 99%

Biodegradation of Chiral Flufiprole in Chlorella pyrenoidosa: Kinetics, Transformation Products, and Toxicity Evaluation

Gao

Wang

Jiang

et al. 2020

J. Agric. Food Chem.

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“…The green microalga, C. vulgaris was obtained from Plant Biology Department of Bayero University, Kano, Nigeria. It was cultured in Bold Basal medium (BBM) in 250 ml conical flasks at 30 ± 2°C [20]. The pH of culture media was adjusted to 7 before being sterilized by autoclaving (Laboratory autoclave Series 2100) [21].…”

Section: Preparation Of C Vulgaris Biomassmentioning

confidence: 99%

Bioremediation of Some Reactive Dyes Commonly used in Fabric Re-dyeing by Chlorella vulgaris

Sani

Dalhatu

Adam

et al. 2021

AJEE

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Aim: The work was aimed at assessing the potential of Chlorella vulgaris in remediation of reactive dyes. Place and Duration of Study: Department of Biological Sciences, Department of Plant Biology and Department of Biochemistry, Bayero University, Kano, Nigeria, between January 2019 and December 2019. Methodology: Wastewater containing individual reactive dyes: reactive red 198 (RR198), reactive yellow 176 (RY176), reactive green 19 (RG19), reactive orange 122 (RO122), reactive red 195 (RR195) and reactive violet 1 (RV1) were collected from a local fabric re-dyeing pit at Kofar Na’isa, Kano, Nigeria. The green microalga C. vulgaris was cultured in Bold Basal medium (BBM) at 30 ± 2°C and subjected to adsorption and decolourization assays of the dyes. Results: The highest dye removal efficiency by enzymatic action was recorded after 48 hours, while that for the biomass adsorption was at day 14, at pH 11.3 and temperature of 30°C. The percentage dye removal by adsorption and decolourization were within the ranges of 68.1-97.8% and 69.8-99.9% respectively. Dye removal decreased with increase in contact time until saturation is attained. Freundlich’s isotherm model was best fitted for the adsorption of the dyes with a strong linear correlation coefficient, R2 ranging from 0.954-0.811. There was a strong linear relationship and high statistical significance among the dyes for both decolourization and adsorption (P value; .01). Conclusion: Chlorella vulgaris was found to be effective in the removal of reactive dyes from textile wastewater samples. The results revealed C. vulgaris to be a cost-effective and eco-friendly biosorbent that can be used for the treatment of wastewaters containing toxic dyes.

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“…Table 1 shows a glance at literature efforts made to remove antineoplastics from different water matrices. Removal strategies included adsorption, nanofiltration, photocatalysis, membrane bioreactors, and Fenton/ozone oxidation processes [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Performance of Pristine versus Magnetized Orange Peels Biochar Adapted to Adsorptive Removal of Daunorubicin: Eco-Structuring, Kinetics and Equilibrium Studies

et al. 2023

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Drugs and pharmaceuticals are an emergent class of aquatic contaminants. The existence of these pollutants in aquatic bodies is currently raising escalating concerns because of their negative impact on the ecosystem. This study investigated the efficacy of two sorbents derived from orange peels (OP) biochar (OPBC) for the removal of the antineoplastic drug daunorubicin (DNB) from pharmaceutical wastewater. The adsorbents included pristine (OPBC) and magnetite (Fe3O4)-impregnated (MAG-OPBC) biochars. Waste-derived materials offer a sustainable and cost-effective solution to wastewater bioremediation. The results showed that impregnation with Fe3O4 altered the crystallization degree and increased the surface area from 6.99 m2/g in OPBC to 60.76 m2/g in the case of MAG-OPBC. Placket–Burman Design (PBD) was employed to conduct batch adsorption experiments. The removal efficiency of MAG-OPBC (98.51%) was higher compared to OPBC (86.46%). DNB adsorption onto OPBC followed the D–R isotherm, compared to the Langmuir isotherm in the case of MAG-OPBC. The maximum adsorption capacity (qmax) was 172.43 mg/g for MAG-OPBC and 83.75 mg/g for OPBC. The adsorption kinetics for both sorbents fitted well with the pseudo-second-order (PSO) model. The results indicate that MAG-OPBC is a promising adsorbent for treating pharmaceutical wastewater.

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Optimized treatment of wastewater containing cytotoxic drugs by living and dead biomass of the freshwater microalga, Chlorella vulgaris

Cited by 30 publications

References 26 publications

Biodegradation of Chiral Flufiprole in Chlorella pyrenoidosa: Kinetics, Transformation Products, and Toxicity Evaluation

Biodegradation of Chiral Flufiprole in Chlorella pyrenoidosa: Kinetics, Transformation Products, and Toxicity Evaluation

Bioremediation of Some Reactive Dyes Commonly used in Fabric Re-dyeing by Chlorella vulgaris

Performance of Pristine versus Magnetized Orange Peels Biochar Adapted to Adsorptive Removal of Daunorubicin: Eco-Structuring, Kinetics and Equilibrium Studies

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