The use of a natural substrate for immobilization of microalgae cultivated in wastewater

Garbowski, Tomasz; Pietryka, Mirosława; Pulikowski, Krzysztof; Richter, Dorota

doi:10.1038/s41598-020-64656-3

Cited by 29 publications

(14 citation statements)

References 44 publications

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“…For this reason, the development of techniques to remove them has become a priority. The results of ongoing research confirm that biosorption is a very effective, economical and environment-friendly removal technique (Paweska and Bawiec 2017;Garbowski et al 2020b).…”

Section: Trends In Biosorbent Researchmentioning

confidence: 67%

Recent trends in Ni(II) sorption from aqueous solutions using natural materials

Charazińska

Burszta‐Adamiak

Lochyński

2021

Rev Environ Sci Biotechnol

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The use of materials of natural origin for the adsorption of heavy metal ions from aqueous solutions has gained attention in recent years among the scientific community. This is explained by the fact that nickel compounds, due to severe health consequences, are considered to be among the most dangerous to the environment. This article reviews the results of studies on the use of biosorbents for purification of aqueous solutions from nickel ions, and then attempts to classify them according to their origin. The characteristics of materials and their sorption capacity have been compared, and the removal mechanisms identified of which chemisorption and ion exchange are considered to be the most common. From the analyses, a major trend is the use of biomass; however, biosorbents from other groups also continue to attract the interest of researchers. Conducting laboratory studies can help select materials with high efficiency. The highest sorption capacity values for the materials in each group were: for waste products 56 mg Ni·g−1 (olive stone), for peat 61 mg Ni·g−1, for miscellaneous 225 mg Ni·g−1 (microbial flocculant GA1), for biomass 286 mg Ni·g−1 (Plantanus orientalis bark) and for composites/modified materials calcinated eggshells 769 mg Ni·g−1 (calcinated eggshells). However, for some materials the sorption phenomenon may be accompanied by precipitation in the presence of hydroxides, which significantly affects the sorption capacity achieved. There is a need to transfer these experiments to an industrial scale so as to verify their applicability. In such industrial scale applications, attention should be paid not only to the effectiveness of the material, but also to its availability, price, and ease of use, as well as the effect of the biosorbent in terms of changing the quality parameters of the aquatic environment.

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Section: Trends In Biosorbent Researchmentioning

confidence: 67%

Recent trends in Ni(II) sorption from aqueous solutions using natural materials

Charazińska

Burszta‐Adamiak

Lochyński

2021

Rev Environ Sci Biotechnol

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“…Microalgae are a ubiquitous group of unicellular or simple multicellular fast-growing microorganisms that grow and produce biomass using light and CO 2 (Xu et al, 2014;El-Sheekh et al, 2020). They are found in nearly all aquatic (fresh and saline water), terrestrial, and sub-aerial surfaces, including soil and bark (Metsoviti et al, 2020;Garbowski et al, 2020;Alvarez et al, 2021). They contain an immense spectrum of nutrients including vitamins (A, B1, B2, B6, and C), protein, antioxidants, polyunsaturated fatty acids (PUFA), minerals, and color pigments (chlorophyll, astaxanthin, carotenoids, etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of different wavelengths of LED light on the growth, chlorophyll, β-carotene content and proximate composition of Chlorella ellipsoidea

Baidya

Akter

Islam

et al. 2021

Heliyon

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Chlorella ellipsoidea is a freshwater green microalga that has great prospect for the sustainable development of aquaculture industry. Microalgae require optimal lighting conditions for efficient photosynthesis. The key to costeffective algal biomass production is to optimize algae growth conditions. This study aimed to investigate the effects of various wavelengths viz. white (380-750 nm), green (510 nm), blue (475 nm), and red (650 nm) lightemitting diodes (LEDs) on the growth, pigment content (chlorophyll-a, chlorophyll-b, and β-carotene), and proximate composition of C. ellipsoidea with a photoperiod of 12 h:12 h light: dark cycle under indoor environmental conditions. C. ellipsoidea was cultured in Bold's Basal Medium for 18 days. The cell density (125.36Â10 5 cells ml À1 ), cell dry weight (58.9 AE 4.57 mg L À1 ), optical density (1.66 AE 0.08 g L À1 ), chlorophyll-a (7.31 AE 0.04 μg ml À1 ), chlorophyll-b (2.73 AE 0.13 μg ml À1 ), and β-carotene (0.39 AE 0.04 μg ml À1 ) content of C. ellipsoidea were significantly (P < 0.05) higher at 15 th -day when cultured under blue LED light exposure. Significantly lower growth and nutritional values were obtained under red LED light exposure compared to the control and other LEDs spectra. In Pearson correlation analysis, the cell density and cell dry weight values showed a strong positive correlation with the values of pigment contents of C. ellipsoidea in all the treatments. The LEDs light spectra showed significant effects on proximate composition of C. ellipsoidea. Protein and lipid contents of C. ellipsoidea were significantly higher in blue LED growth conditions compared to white, green, and red LEDs.C. ellipsoidea cells were 3À7.04 μm in size and the maximum area of the cell was 38.94 μm 2 in blue LED treatment.Results of this study demonstrated that blue LED light spectra was the most suitable condition to induce nutritionally rich biomass production of C. ellipsoidea, which can be used as a potential source of fish feed towards sustainable aquaculture.

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“…Substances or materials used for immobilization must meet a number of specific conditions [29][30][31] Choosing a support according to the desired application is an important task, which is why it must be considered significant the following conditions: toxicity, immobilization efficiency, stability, and microscopic properties of the particle surface, but also flexibility in overall shape, high diffusivity, simple immobilization procedure, and high biomass retention. Due to the impossibility of finding a single material that meets all these conditions, in practice, combinations of various polymers, or modifiers of support polymers properties are most often used [31][32][33].…”

Section: Polymer Support For Immobilization Of Microbial Biomass To Obtain Biosorbentsmentioning

confidence: 99%

“…Substances or materials used for immobilization must meet a number of specific conditions [ 29 , 30 , 31 ]: To have adequate rheological properties (flow easily even at high concentrations). To have the ability to disperse biomass.…”

Section: Polymer Support For Immobilization Of Microbial Biomass To Obtain Biosorbentsmentioning

confidence: 99%

Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes

2021

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The use of biosorbents for the decontamination of industrial effluent (e.g., wastewater treatment) by retaining non-biodegradable pollutants (antibiotics, dyes, and heavy metals) has been investigated in order to develop inexpensive and effective techniques. The exacerbated water pollution crisis is a huge threat to the global economy, especially in association with the rapid development of industry; thus, the sustainable reuse of different treated water resources has become a worldwide necessity. This review investigates the use of different natural (living and non-living) microbial biomass types containing polysaccharides, proteins, and lipids (natural polymers) as biosorbents in free and immobilized forms. Microbial biomass immobilization performed by using polymeric support (i.e., polysaccharides) would ensure the production of efficient biosorbents, with good mechanical resistance and easy separation ability, utilized in different effluents’ depollution. Biomass-based biosorbents, due to their outstanding biosorption abilities and good efficiency for effluent treatment (concentrated or diluted solutions of residuals/contaminants), need to be used in industrial environmental applications, to improve environmental sustainability of the economic activities. This review presents the most recent advances related the main polymers such as polysaccharides and microbial cells used for biosorbents production; a detailed analysis of the biosorption capability of algal, bacterial and fungal biomass; as well as a series of specific applications for retaining metal ions and organic dyes. Even if biosorption offers many advantages, the complexity of operation increased by the presence of multiple pollutants in real wastewater combined with insufficient knowledge on desorption and regeneration capacity of biosorbents (mostly used in laboratory scale) requires more large-scale biosorption experiments in order to adequately choose a type of biomass but also a polymeric support for an efficient treatment process.

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The use of a natural substrate for immobilization of microalgae cultivated in wastewater

Cited by 29 publications

References 44 publications

Recent trends in Ni(II) sorption from aqueous solutions using natural materials

Recent trends in Ni(II) sorption from aqueous solutions using natural materials

Effect of different wavelengths of LED light on the growth, chlorophyll, β-carotene content and proximate composition of Chlorella ellipsoidea

Polysaccharides as Support for Microbial Biomass-Based Adsorbents with Applications in Removal of Heavy Metals and Dyes

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