Removal of Heavy Metals and Organic Pollutants by Marine Microalgae

Umamaheswari, J.; Rajamanickam, Ricky; Vilvanathan, Sowmya; Shanthakumar, S.; Venkateswarlu, Kadiyala; Abinandan, Sudharsanam; Megharaj, Mallavarapu

doi:10.1007/978-3-031-17226-7_3

Cited by 3 publications

(2 citation statements)

References 159 publications

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“…However, several species are sensitive to toxicants; thus, various algae species are widely recommended for ecotoxicological assays to evaluate the toxicity of water contaminants or as bioindicators for water pollution [ 26 , 27 , 28 , 29 , 30 ]. Microalgae can be an effective tool during the removal of nutrients, heavy metals, and other pollutants from natural waterbodies and wastewaters [ 31 , 32 , 33 , 34 , 35 ]. Moreover, microalgae and cyanobacteria such as Chlorella vulgaris Beijerinck [ 36 ] and Arthorspira platensis Gomont (commercial name: Spirulina platensis ) [ 37 ] are consumed as food supplements as well [ 38 , 39 , 40 ], and they are used in various industrial activities, such as in aquaculture and during the production of pharmaceuticals, animal feed, and cosmetics [ 41 , 42 , 43 , 44 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Laboratory-Based and Spectroscopic Methods Used to Estimate the Algal Density of Chlorella vulgaris

Fekete,

Sebők,

Klátyik

et al. 2024

Microorganisms

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Chlorella vulgaris is of great importance in numerous exploratory or industrial applications (e.g., medicals, food, and feed additives). Rapid quantification of algal biomass is crucial in photobioreactors for the optimization of nutrient management and the estimation of production. The main goal of this study is to provide a simple, rapid, and not-resource-intensive estimation method for determining the algal density of C. vulgaris according to the measured parameters using UV–Vis spectrophotometry. Comparative assessment measurements were conducted with seven different methods (e.g., filtration, evaporation, chlorophyll a extraction, and detection of optical density and fluorescence) to determine algal biomass. By analyzing the entire spectra of diluted algae samples, optimal wavelengths were determined through a stepwise series of linear regression analyses by a novel correlation scanning method, facilitating accurate parameter estimation. Nonlinear formulas for spectrometry-based estimation processes were derived for each parameter. As a result, a general formula for biomass concentration estimation was developed, with recommendations for suitable measuring devices based on algae concentration levels. New values for magnesium content and the average single-cell weight of C. vulgaris were established, in addition to the development of a rapid, semiautomated cell counting method, improving efficiency and accuracy in algae quantification for cultivation and biotechnology applications.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Laboratory-Based and Spectroscopic Methods Used to Estimate the Algal Density of Chlorella vulgaris

Fekete,

Sebők,

Klátyik

et al. 2024

Microorganisms

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show abstract

“…The textile dyes are very difficult to be degraded under normal wastewater treatment procedures. There are different ways to get rid of the problems associated with polluted water such as adsorption [ 7 ], photo-catalyst [ 8 ], marine microalgae [ 9 ], adsorption on nano composites [ 10 ], etc. The photocatalytic way of organic pollutant removal is one of the most used ways and this process produces no secondary pollutants.…”

Section: Introductionmentioning

confidence: 99%