Removal of Cadmium and Other Toxic Metals from Water: Thermophiles and New Biotechnologies

Остроумов, С. А.; Тропин, И. В.; Kiryushin, A. V.

doi:10.1134/s1070363218130224

Cited by 9 publications

(5 citation statements)

References 24 publications

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“…These toxic metals can enter the food chain and then into our bodies [3]. Cadmium (Cd) is one of the most toxic metals in this regard [4]. Milk is a valuable food source for humans and animals.…”

Section: Introductionmentioning

confidence: 99%

The Biosorption Capacity of Saccharomyces Cerevisiae for Cadmium in Milk

Massoud

Sharifan

Asadi

et al. 2020

Dairy

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This study aimed to evaluate the capacity of Saccharomyces cerevisiae for Cadmium absorption in milk. Nowadays, one of the most serious problems of the industrialized world is heavy metal pollution. Applying microorganisms as novel biotechnology is very useful, especially in foodstuffs. Among the biosorbents used for heavy metal removal, Saccharomyces cerevisiae has received increasing attention due to its popularity in the food industry. In this regard, the effects of some important factors such as the initial metal concentration, biomass concentration and contact time on the biosorption capacity of Saccharomyces cerevisiae were studied. The biosorption was analyzed by the inductively coupled plasma mass spectrometer (ICP-MS). The maximum cadmium (Cd) removal (70%) was at 80 μg/L of Cd concentration in milk samples containing 30 × 108 CFU Saccharomyces cerevisiae at the end of storage time (the 4th day). There were no significant differences in the sensory and physicochemical properties (pH, acidity and density) of milk samples during storage (p < 0.05). The isotherm studies were followed by two popular models, Langmuir and Freundlich, and the results showed a better fit to the Langmuir isotherm. Altogether, the results of this study demonstrate that the approach of using this valuable yeast could be applied for food detoxification and producing healthier foodstuffs.

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Section: Introductionmentioning

confidence: 99%

The Biosorption Capacity of Saccharomyces Cerevisiae for Cadmium in Milk

Massoud

Sharifan

Asadi

et al. 2020

Dairy

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“…Similarly, Cyanidioschyzon merolae displayed a maximum sorption capacity of 214.0 mg g −1 . In the study conducted by Ostroumov et al [30], after 30 days of incubation, the average Pb concentration was reduced by 84% using G. sulphuraria IPPAS P-513. However, in a separate study by Ostroumov et al [35], both stripping voltammetry and vitrified mortmass techniques failed to detect Pb in the biomass.…”

Section: Discussionmentioning

confidence: 94%

“…Isachsen et al [29] investigated Cyanidioschyzon merolae strains MS1 and 10D, finding that strain 10D achieved a 31.55% removal efficiency after a seven-day treatment, while strain MS1 achieved 1.16%. Another study by Ostroumov et al [30] employed the G. sulphuraria IPPAS P-513 strain, effectively removing Cd, Cu, Pb, and Ni over 30 days of incubation, resulting in a 24% reduction in average Cd content. The literature indicates that most of the research for Cd bioremoval has been conducted with green algae strains.…”

Section: Discussionmentioning

confidence: 99%

Removal of Cadmium and Lead from Synthetic Wastewater Using Galdieria sulphuraria

Kharel,

Shrestha,

Tan

et al. 2023

Environments

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The strain of red microalgae Galdieria sulphuraria CCMEE 5587.1 was evaluated in a controlled laboratory environment for its ability to tolerate and remove two heavy metal (HM) ions: cadmium [Cd(II)] and lead [Pb(II)] in aqueous solutions as a single metal species. Various concentrations (0 mg L−1 to 5 mg L−1) of Cd and Pb ions were added to the Cyanidium medium in which the chosen microalgae strain G. sulphuraria CCMEE 5587.1 was grown at an acidic pH of 2.5. The effectiveness of G. sulphuraria CCMEE 5587.1 in tolerating and removing these two metal ions was measured by analyzing its growth profile, growth rate, nutrient removal, and metal ion removal efficiency. The growth of G. sulphuraria CCMEE 5587.1 was inhibited during the initial days of incubation, and the growth rate decreased when the HM concentration in the media was increased. Nutrient removal in the HM-containing media is comparable to that in the control media at low metal concentrations but decreases as the metal concentration rises. G. sulphuraria CCMEE 5587.1 has the highest removal efficiency for Cd and Pb in a medium containing 2.5 mg L−1 of metal ions, which is 49.80% and 25.10%, and the corresponding sorption capacity is 1.45 mg g−1 and 0.53 mg g−1 of dry biomass, respectively. These findings suggest that G. sulphuraria CCMEE 5587.1 holds potential as a viable bioremediation solution for extracting Cd and Pb from wastewater, alongside its capacity to remove nutrients concurrently. The study underscores the dual advantage of G. sulphuraria CCMEE 5587.1, making it a promising candidate for addressing heavy metal pollution in wastewater treatment processes.

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“…Ostroumov et al [ 67 ] conducted experiments using Galdieria sulphuraria to remove four toxic HMs: Cd, Cu, Pb, and Ni. After an incubation time of 30 days, Ni showed the least amount of reduction in concentration at 19% among the four metals.…”

Section: Cyanidiales and Their Effectiveness In Heavy Metal Removalmentioning

confidence: 99%

Cyanidiales-Based Bioremediation of Heavy Metals

Kharel

Shrestha

Tan

et al. 2023

BioTech

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With growing urbanization and ongoing development activities, the consumption of heavy metals has been increasing globally. Although heavy metals are vital for the survival of living beings, they can become hazardous when they surpass the permissible limit. The effect of heavy metals varies from normal to acute depending on the individual, so it is necessary to treat the heavy metals before releasing them into the environment. Various conventional treatment technologies have been used based on physical, chemical, and biological methods. However, due to technical and economic constraints and poor sustainability towards the environment, the use of these technologies has been limited. Microalgal-based heavy metal removal has been explored for the past few decades and has been seen as an effective, environment-friendly, and inexpensive method compared to conventional treatment technology. Cyanidiales that belong to red algae have the potential for remediation of heavy metals as they can withstand and tolerate extreme stresses of heat, acid salts, and heavy metals. Cyanidiales are the only photosynthetic organisms that can survive and thrive in acidic mine drainage, where heavy metal contamination is often prevalent. This review focuses on the algal species belonging to three genera of Cyanidiales: Cyanidioschyzon, Cyanidium, and Galdieria. Papers published after 2015 were considered in order to examine these species’ efficiency in heavy metal removal. The result is summarized as maximum removal efficiency at the optimum experimental conditions and based on the parameters affecting the metal ion removal efficiency. This study finds that pH, initial metal concentration, initial algal biomass concentration, algal strains, and growth temperature are the major parameters that affect the heavy metal removal efficiency of Cyanidiales.

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Removal of Cadmium and Other Toxic Metals from Water: Thermophiles and New Biotechnologies

Cited by 9 publications

References 24 publications

The Biosorption Capacity of Saccharomyces Cerevisiae for Cadmium in Milk

The Biosorption Capacity of Saccharomyces Cerevisiae for Cadmium in Milk

Removal of Cadmium and Lead from Synthetic Wastewater Using Galdieria sulphuraria

Cyanidiales-Based Bioremediation of Heavy Metals

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