A New Strategy for Heavy Metal Polluted Environments: A Review of Microbial Biosorbents
By A. Ayangbenro, O. Babalola. International Journal of Environmental Research and Public Health, 2017
1,369 citations recorded by the source corpus.
Persistent heavy metal pollution poses a major threat to all life forms in the environment due to its toxic effects. These metals are very reactive at low concentrations and can accumulate in the food web, causing severe public health concerns. Remediation using conventional physical and chemical methods is uneconomical and generates large volumes of chemical waste. Bioremediation of hazardous metals has received considerable and growing interest over the years. The use of microbial biosorbents is eco-friendly and cost effective; hence, it is an efficient alternative for the remediation of heavy metal contaminated environments. Microbes have various mechanisms of metal sequestration that hold greater metal biosorption capacities. The goal of microbial biosorption is to remove and/or recover metals and metalloids from solutions, using living or dead biomass and their components. This review discusses the sources of toxic heavy metals and describes the groups of microorganisms with biosorbent potential for heavy metal removal.
Subfields: Health, Toxicology and Mutagenesis, Pollution, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/557a089f4530887758e4ac1372a4f4279a9e7270
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In Health, Toxicology and Mutagenesis
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Citations in the corpus
- Biosorption of Water Pollutants by Fungal Pellets (2020, background): “These technologies present some drawbacks, such as their relatively high cost, in some cases derived from the constant inputs of chemical reagents or energy, or their inefficiency to treat diluted streams (with concentrations of metals below 100 mg·L−1) [43].”
- Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review (2018, background): “The Figure 1: Mechanisms of heavy metal uptake by microorganisms [47, 53].”
- Microbes used as a tool for bioremediation of heavy metal from the environment (2020, background): “Microbial cells must adapt to the alteration of physical, chemical, and bioreactor configuration to enhance biosorption (Ayangbenro & Babalola, 2017).”
- A Review on Practical Application and Potentials of Phytohormone-Producing Plant Growth-Promoting Rhizobacteria for Inducing Heavy Metal Tolerance in Crops (2020, background): “These heavy metals may pose toxic or beneficial effects on soil microbes, depending upon bioavailability and nature [5], along with climatic factors.”
- Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review (2017, background): “Algae turns out large biomass which gives them a high sorption capacity compared to other microbial biosorbents [9,67].”
- Heavy metal remediation and resistance mechanism of Aeromonas, Bacillus, and Pseudomonas: A review (2020, background): “…of several functional groups, such as thiol, thioether, sulfonate, phosphoryl, sulfhydryl, hydroxyl, ester, amine, and carboxyl groups, various cations and anions of heavy metals bind to it through electrostatic interactions and hydrogen bonding (Akhter et al., 2017; Ayangbenro & Babalola, 2017).”
- Arsenic Uptake, Toxicity, Detoxification, and Speciation in Plants: Physiological, Biochemical, and Molecular Aspects (2018, background): “This is due to the transformation of As into a more soluble As fraction (AsIII) at low soil pH values.”