Dead biomass of Morganella morganii acts as an efficient adsorbent to remove Pb(II) from aqueous solution in different aeration–agitation and pH conditions

Kumar, Pankaj; Maurya, Amrita; Garg, Shafali; Yadav, Archana; Mishra, Vandana; Sharma, Raghav

doi:10.1007/s42452-020-3013-8

Cited by 11 publications

(5 citation statements)

References 47 publications

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“…The two groups of bacteria were identified as Bacillus cereus and Morganella morganii. 16,17 To get here the bacteria were tested on a series of tests called assays which were explained above. These tests revealed properties of the bacteria which were useful to the soil and plants.…”

Section: Discussionmentioning

confidence: 99%

“…M. morganii essentially takes most chemicals that are noxious and turns them into less harmful chemicals. 18 Another research article by Ann Sebastian et al also discusses how B. cereus is a bacteria that usually is found around the roots of a plant. The study shows that B. cereus uses enzymes to help plant growth and these results corroborate with those of the present study.…”

Section: Discussionmentioning

confidence: 99%

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Identification and Analysis of Plant Growth Promoting Bacteria in LEAF Community Garden Soil

2021

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In today’s largely populated modern world, crop yield is becoming increasingly important. To increase crop yield, new modern technologies for farming are continuously being innovated. The aim of this study is the identification of Plant Growth Promoting Bacteria (PGPBs) and their properties. In order to conduct the experiment, soil samples were collected from the community garden LEAF (Local Ecology and Agriculture Fremont). These samples were grown in Luria Bertani agar plates, and the two bacterial strains that grew from them were analyzed to determine the species of the bacteria. Using a DNA extraction kit, DNA was extracted from the bacteria and then amplified versions were sent to RF Biotech for DNA sequencing. The DNA sequences were then used to determine that the two bacterial species in question are Bacillus cereus and Morganella morganii. Afterwards, multiple assays were used to measure the efficiency of each bacterial species to absorb various substances that would be helpful for plant growth. The aim of this research is to better understand which bacterial strains are beneficial for plants, and which are harmful. Through having greater zones of inhibition, the bacterial species M. morganii proved to be more efficient in the siderophore and phosphate solubilization assays. In contrast, the bacterial species B. cereus proved to be more efficient in the cellulase and amylase production assays. These results will assist LEAF in enriching their soil in order to increase their crop yields by creating an increase in concentration of advantageous bacteria and decrease that of detrimental bacteria.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Identification and Analysis of Plant Growth Promoting Bacteria in LEAF Community Garden Soil

2021

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“…Likewise, Morganella showed better metal removal efficiency. Morganella is a type of gram-negative microbes belonging to the family Enterobacteriaceae, members of which were formerly planned as a candidate in bioremediation of chromium (VI), Lead (II) and uranium (VI) (Martins et al 2010;Kumar et al 2020;Princy et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Physical characterization and kinetic studies of Zn (II) biosorption by Morganella morganii ACZ05

Ramya

Thatheyus

Juliana

et al. 2022

Water Science and Technology

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Through this investigation, we establish the mechanism and physical characterization of zinc (II) sequestration by Morganella morganii ACZ05 strain, which was isolated and characterized from soil polluted by effluents from electroplating industries. As far as we know, there is very little literature concerning zinc biosorption using an environmental strain of Morganella morganii. The SEM analysis shows the dark porous gaps in the aggregated cell-matrix of test bacterial biomass which is inferred as water channels usually seen in biofilms, as compared to metal-unexposed control. Morganella morganii is not known to produce biofilms unless in the rare nosocomial conditions. Here, SEM analysis shows the production of biofilms after exposure to zinc (II) at 500 ppm, which has not been previously reported. EDX analysis of bacterial biomass also specified the sorption of zinc (II) by the bacterial cells and the presence of new peaks for zinc in contrast to control. Both XRD and FTIR analysis observations strongly implicate the potential of physical adsorption as a mechanism for heavy metal resistance. Analysis of the cell surface by Atomic force microscopy and examination of the topography revealed cell aggregation occurs during biofilm production after zinc biosorption. Unlike other reports, regular models such as Langmuir isotherm and Freundlich isotherm were found insufficient to explain the physisorption of zinc (II) metal ions on the complex multicomponent adsorbents such as the exopolymeric surface of the bacterial cells. However, adsorption kinetics of zinc (II) to the bacterial biomass was most effectively elucidated by a pseudo-second-order kinetic model, suggesting a certain kind of chemisorption that requires further study.

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“…The use of dead bacterial biomass also reduces the extent of introducing alien microbes to the industrial effluent, which in turn decreases the possible risk of microbial infection and lowers the cost of maintenance. Furthermore, dead biomass can easily be transported and can be stored long term without compromising their activity [25]. Therefore, biosorption using dead bacterial biomass serves as an environmentally friendly, cost-effective approach for the removal of Cu-based pollutants from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Removal of Cu Ions in Wastewater through a Combined Foam Separation‐Cell Adsorption Approach

Hou

Meng

et al. 2022

Chem Eng & Technol

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The removal of heavy metal pollutants from industrial wastewater is important to ensure the safety of the environment and humans. In this study, rhamnolipids from Pseudomonas aeruginosa were used to treat synthetic wastewater containing Cu ions (100 mg L -1 ) by foam separation. A high removal efficiency of 99.52 % was achieved when the somatic cells of inactivated P. aeruginosa were used as biosorbents. The analysis of the adsorption kinetics showed that dynamic biosorption followed the Langmuir isotherm model and that the bacterial cells had a strong adsorption effect on Cu ions. The novel technology based on the combination of foam separation and biosorption serves as an effective approach for the removal of Cu ions from industrial wastewater.

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Dead biomass of Morganella morganii acts as an efficient adsorbent to remove Pb(II) from aqueous solution in different aeration–agitation and pH conditions

Cited by 11 publications

References 47 publications

Identification and Analysis of Plant Growth Promoting Bacteria in LEAF Community Garden Soil

Identification and Analysis of Plant Growth Promoting Bacteria in LEAF Community Garden Soil

Physical characterization and kinetic studies of Zn (II) biosorption by Morganella morganii ACZ05

Removal of Cu Ions in Wastewater through a Combined Foam Separation‐Cell Adsorption Approach

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