Biosorption of Heavy Metals by Cyanobacteria: Potential of Live and Dead Cells in Bioremediation

Singh, S. B.

doi:10.1007/978-981-15-1812-6_15

Cited by 14 publications

(8 citation statements)

References 59 publications

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“…Notably, cyanobacteria have been shown to perform bioleaching as well (Cecal et al 2000;Singh 2020). Despite being autotrophic organisms, their bioleaching mechanisms are similar to those of organotrophic microorganisms and involve biosorption through polysaccharides and organic acids (containing amino, carboxyl, hydroxyl and carbonyl groups) present on the cell surface and in biofilms (Huang et al 2020;Singh 2020). Extraction of REEs and vanadium from basalt (Mars and Moon analogue rock) using organotrophic bacteria (Sphingomonas desiccabilis and Bacillus subtilis) was successfully performed on the ISS under Martian gravity and microgravity (Cockell et al 2020, while copper, iron and magnesium were extracted by Cupriavidus metallidurans from basalt after three months of spaceflight (Byloos et al 2017).…”

Section: Organotroph Microorganismsmentioning

confidence: 99%

“…Many metal and metalloids, including precious elements such as gold, platinum and silver, have been successfully extracted from electronic waste using cyanogenic microorganisms, which include Pseudomona s spp., Bacillus megaterium , Escherichia coli and Chromobacterium violaceum (Valix 2017 ). Notably, cyanobacteria have been shown to perform bioleaching as well (Cecal et al 2000 ; Singh 2020 ). Despite being autotrophic organisms, their bioleaching mechanisms are similar to those of organotrophic microorganisms and involve biosorption through polysaccharides and organic acids (containing amino, carboxyl, hydroxyl and carbonyl groups) present on the cell surface and in biofilms (Huang et al 2020 ; Singh 2020 ).…”

Section: Space Biomining Principlesmentioning

confidence: 99%

Section: Space Biomining Principlesmentioning

confidence: 99%

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The smallest space miners: principles of space biomining

2022

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As we aim to expand human presence in space, we need to find viable approaches to achieve independence from terrestrial resources. Space biomining of the Moon, Mars and asteroids has been indicated as one of the promising approaches to achieve in-situ resource utilization by the main space agencies. Structural and expensive metals, essential mineral nutrients, water, oxygen and volatiles could be potentially extracted from extraterrestrial regolith and rocks using microbial-based biotechnologies. The use of bioleaching microorganisms could also be applied to space bioremediation, recycling of waste and to reinforce regenerative life support systems. However, the science around space biomining is still young. Relevant differences between terrestrial and extraterrestrial conditions exist, including the rock types and ores available for mining, and a direct application of established terrestrial biomining techniques may not be a possibility. It is, therefore, necessary to invest in terrestrial and space-based research of specific methods for space applications to learn the effects of space conditions on biomining and bioremediation, expand our knowledge on organotrophic and community-based bioleaching mechanisms, as well as on anaerobic biomining, and investigate the use of synthetic biology to overcome limitations posed by the space environments.

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Section: Organotroph Microorganismsmentioning

confidence: 99%

Section: Space Biomining Principlesmentioning

confidence: 99%

Section: Space Biomining Principlesmentioning

confidence: 99%

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The smallest space miners: principles of space biomining

2022

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“…In artificial technique heat is used but in BD microorganism were utilized. BD efficiently occur at optimum moisture conditions, If plenty of moisture is available than bacteria grow efficiently and BD process speedup and vice versa [80].…”

Section: Biodegradationmentioning

confidence: 99%

Atmospheric Pollution Interventions in the Environment: Effects on Biotic and Abiotic Factors, Their Monitoring and Control

Zeeshan¹,

Nabila²,

Murtaza³

et al. 2021

Agrometeorology

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Atmosphere is polluted for all living, non-living entities. Concentrations of atmospheric pollutants like PM2.5, PM10, CO, CO2, NO, NO2, and volatile organic compounds (VOC) are increasing abruptly due to anthropogenic activities (fossil fuels combustion, industrial activities, and power generation etc.). These pollutants are causing soil (microbial diversity disturbance, soil structure), plants (germination, growth, and biochemistry), and human health (asthma, liver, and lungs disorders to cancers) interventions. All the effects of these pollutants on soil, plants, animals, and microbes needed to be discussed briefly. Different strategies and technologies (HOPES, IOT, TEMPO and TNGAPMS) are used in the world to reduce the pollutant emission at source or when in the atmosphere and also discussed here. All gaseous emissions control mechanisms for major exhaust gases from toxic to less toxic form or environmental friendly form are major concern. Heavy metals present in dust and volatile organic compounds are converted into less toxic forms and their techniques are discussed briefly.

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“…Owing to exacerbation toxic metals problems in the environment, the researchers stepped up their efforts to develop an eco-friendly, low cost and clean techniques to overcome this serious situation. Bioremediation is considered one of the most promising, important and useful bio-techniques to overcome the contaminated environments (Ali et al 2019;Kumar 2017) Biological treatment is carried out through two different pathways; bioaccumulation through living cells (Ali et al 2016;Churchill et al 1995) or the biosorption using dry died cells (Davis et al 2003;Singh 2020). Biosorption adsorption process involves dry died cell (solid phase) and metal ions solution (liquid phase) (Farooq et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of extremophilic microbial mats for removing Pb(II), Cu(II), and Ni(II) ions from aqueous solutions

Al-Qahtani

Ali

Abdelkarim

et al. 2021

Environ Sci Pollut Res

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Two different extremophilic films were used as natural biosorbents to remove Cu(II), Ni(II) and Pb(II) from aqueous solution. Surface area, scanning electron microscope imaging and Fourier transformation infrared were used to characterize the surface of biosorbents. The results indicated high affinity of biosorbents to remove Pb(II) Cu(II) and Ni(II) with adsorption ratio ranged between 73.6% to 100% for both two biosorbent. The two biosorbents success to remove the metal ions from the aqueous mixture in the order of Pb(II) > Cu(II) > Ni(II). The maximum removal ratios of metal ions were achieved at pH = 6, 150 min contact time, 2.5 g/L biosorbent dose and 50 mg/L metal ions. The isothermal studies showed that both Langmuir and Freundlich models well expressed the adsorption process. Kinetically, the pseudo-second order reaction well express the type of reaction than pseud-first order reaction.

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Biosorption of Heavy Metals by Cyanobacteria: Potential of Live and Dead Cells in Bioremediation

Cited by 14 publications

References 59 publications

The smallest space miners: principles of space biomining

The smallest space miners: principles of space biomining

Atmospheric Pollution Interventions in the Environment: Effects on Biotic and Abiotic Factors, Their Monitoring and Control

Efficiency of extremophilic microbial mats for removing Pb(II), Cu(II), and Ni(II) ions from aqueous solutions

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