Advances in microbially mediated manganese redox cycling coupled with nitrogen removal in wastewater treatment: A critical review and bibliometric analysis

Wang, Yue; Bai, Yihan; Su, Junfeng; Ali, Amjad; Gao, Zhihong; Cao, Meng; Ren, Miqi

doi:10.1016/j.cej.2023.141878

Cited by 7 publications

(2 citation statements)

References 145 publications

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“…Microbes play a significant part on functioning ecosystem more especially in the biogeochemical cycling of heavy metals by removing the metals from the environment (Wang et al, 2023). Biological roles and impacts of metals are categorized into three broad groups: (Na, Ca, K, Mn, Mg, V, Fe, Cu, Co, Mo, Ni, Zn, and W) are necessary metals with known biological functions; (Ag, Sn, Cd, Au, Ti, Hg, Pb, Al, and metalloids Ge, Sb, As, and Se) are toxic metals; and (Rb, Sr, and T) are non-essential, nontoxic metals with no known biological effects.…”

Section: Impact On Ecosystem Functioningmentioning

confidence: 99%

Mechanisms of Bacterial Resistance to Heavy Metals: A Mini Review

Yusuf Fardami,

Balarabe Ibrahim,

Sabitu

et al. 2023

USci

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Because of rising levels of heavy metal pollution in the environment, microbial resistance to heavy metals has become an increasing concern. Heavy metal resistance in bacteria is typically achieved through a combination of passive and active mechanisms, including heavy metal sequestration, efflux, or transformation within the microbial cell. During the efflux mechanism, a membrane protein's energy-dependent ion efflux from the cell is necessary for heavy metal removal. Understanding the physicochemical parameters of the environment, structure and diversity of microbial communities, nature and concentration of heavy metals is critical for developing effective strategies for the remediation of heavy metal-contaminated sites. Many microbes play a significant part on functioning ecosystem more especially in the biogeochemical cycling of heavy metals by removing the metals from the environment. As, Pb, Cd, and Hg are among heavy metals that are associated with the most common ecologically hazardous metals that can be toxic to microbes and still nature has evolved few groups of microbes that were found to resist the effect of heavy metals while thriving within their ecosystem such as Pseudomonas sp., Escherichia coli and Serratia marcescens that can resist Hg. Pseudomonas putida, Cupriavidus necator, Exiguobacterium sp., Bacillus aquimaris, Bacillus cereus and Alcaligenes sp. can also resist Cu, Cd, Pb, Cr and Ni. The exposure of local and regional soil with heavy metal pollution due to smelting causes which poses major environmental issues that is currently on rise in human ecosystem. Therefore, studying the mechanisms of bacterial resistance to heavy metal is critical for developing strategies to reduce the environmental impact of heavy metal pollution.

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Section: Impact On Ecosystem Functioningmentioning

confidence: 99%

Mechanisms of Bacterial Resistance to Heavy Metals: A Mini Review

Yusuf Fardami,

Balarabe Ibrahim,

Sabitu

et al. 2023

USci

View full text Add to dashboard Cite

show abstract

“…Specically, Mn 2+ acts as a reductant to provide an electron donor for anaerobic denitrication reactions, including Mn 2+ -driven denitrication and Mn 2+ oxidation combined with nitrication. 14 He et al 15 found that 0.5 mg L −1 signicantly stimulated denitrication by Arthrobacter arilaitensis Y-10. Liu et al 16 revealed that under sustained manganese-humic acid complex domestication conditions, the sludge microbial community may have evolved into an energy-efficient consortium of short-cut nitrication, denitrication, and anaerobic ammonia oxidation to achieve excellent ammonium removal.…”

Section: Introductionmentioning

confidence: 99%