Removal of Cypermethrin from Water by Using Fucus Spiralis Marine Alga

Alpha-cypermethrin is a synthetic pyrethroid that was extensively used for insect control, since the early 1980s. However, it is known that its presence in the environment has toxic effects on humans and aquatic life forms. For this reason, it is commendable for it to be removed completely from the...

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Bibliographic Details
Published in:International journal of environmental research and public health 2019-09, Vol.16 (19), p.3663
Main Authors: Năstuneac, Violeta, Panainte-Lehăduș, Mirela, Moșneguțu, Emilian Florin, Gavrilaș, Simona, Cioca, Gabriela, Munteanu, Florentina-Daniela
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Algae
Aqueous solutions
Biodegradation, Environmental
Calibration
Correlation coefficients
Cypermethrin
Environmental impact
Environmental Restoration and Remediation - methods
Equilibrium
Experiments
Fucus - metabolism
Kinetics
Laboratories
Natural products
Pesticides
Pyrethrins - analysis
Textile industry
Water Pollutants, Chemical - analysis
Water Pollution, Chemical - prevention & control
Water Purification - methods
Water treatment
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Summary:Alpha-cypermethrin is a synthetic pyrethroid that was extensively used for insect control, since the early 1980s. However, it is known that its presence in the environment has toxic effects on humans and aquatic life forms. For this reason, it is commendable for it to be removed completely from the contaminated environment. In this study, we evaluated the adsorption capacity of a marine alga for the removal of cypermethrin from water. The adsorption experiments were performed based on the batch equilibrium technique. The samples containing the pesticide were analyzed using gas chromatography with an electron capture detector, after liquid-liquid extraction in hexane. The results obtained from the kinetic adsorption studies showed that the equilibrium time was attained after 40 min. The adsorption parameters at equilibrium concentrations, obtained through the Langmuir, Freundlich, and Temkin models, showed that the used brown marine alga has a maximum amount of adsorbed cypermethrin of 588.24 µg/g. The correlation coefficients obtained for each model prove that the Langmuir model best fits the experimental data.
ISSN:1660-4601
1661-7827
1660-4601
DOI:10.3390/ijerph16193663