Biomineralization based remediation of cadmium and nickel contaminated wastewater by ureolytic bacteria isolated from barn horses soil

Khadim, Hussein J.; Ammar, Saad H.; Ebrahim, Shahlaa Esmail

doi:10.1016/j.eti.2019.100315

Cited by 80 publications

(14 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1c). These phenomenons were similar to some previous studies, which reported the bacterial mechanism of urea hydrolysis [14,21,22]. The increase of pH and urease production indicated that strain DC1 would have the ability to induce carbonate precipitation [23,24].…”

Section: Isolation Of Psychrotolerant Bacteriasupporting

confidence: 91%

The Isolation and Characterization of <i>Glutamicibacter</i> DC1 to Induce Carbonate Precipitation of Some Heavy Metals at Low-Temperature

Li¹,

Do²,

Ding³

et al. 2022

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

The psychrotolerant bacteria able to induce carbonate precipitation of heavy metals at low temperatures play an essential role in the remediation of heavy metal contaminated soil in cold regions. In this study, a psychrotolerant bacterial strain DC1 with carbonate mineralization potential, identified as Glutamicibacter sp., was isolated from tailing soil. The optimal temperatures and pH range for the growth of strain DC1 were 10-30ºC and 6-8, respectively. Besides, strain DC1 showed a high degree of resistance to various metals (Pb>Cu>Ni>Cd). Furthermore, strain DC1 produced a large amount of urease (266.91 U/mL), which induced the fermentation suspension's pH (pH 9.5 at 10ºC). Moreover, the fermentation suspension of strain DC1 could generate carbonate precipitates of various metals (Pb, Cd, Ni, and Cu) to remove them from the solutions. Based on the analyses of XRD, SEM, and EDS, the carbonate precipitates of Pb and Cd have been identified as PbCO 3 and CdCO 3 mineral crystals, respectively. In contrast, no mineral crystals of Ni and Cu existed. Furthermore, the carbonate minerals of Cd and Pb with regular crystal improved resistance to dilute acid. Thus, this study showed that strain DC1 without acid production could induce carbonate precipitates of Pb, Cd, Cu, and Ni at lowtemperature.

show abstract

Section: Isolation Of Psychrotolerant Bacteriasupporting

confidence: 91%

The Isolation and Characterization of <i>Glutamicibacter</i> DC1 to Induce Carbonate Precipitation of Some Heavy Metals at Low-Temperature

Li¹,

Do²,

Ding³

et al. 2022

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

show abstract

“…In our experiments, the metabolic activity of S. mirabilis P16B-1 was not enough to substantially reduce the concentration of nickel in the medium containing 10 mM of NiSO 4 , in contrast to the media containing 5 mM of NiSO 4 . Nickel immobilization by microbial-induced calcite precipitation was also less effective in a higher initial metal load [ 27 ]. However, these tests were conducted in liquid media under agitation; therefore, the solution was homogenized, and no microenvironmental effects could form.…”

Section: Discussionmentioning

confidence: 99%

“…With the observed nickel struvite biomineralization, a process not only removing high phosphate and magnesium concentrations to avoid eutrophy in wastewater receiving streams and lakes, but also treatment for nickel removal in bioremediation processes becomes feasible [ 24 , 29 ]. Here, the minerals can be easily precipitated without the need for the cell removal that would be necessary if mere bioadsorption processes were considered [ 27 ]. Thus, and although higher percentages of metal can be bound to cell walls, this will be cost-effective, as no filtering but mere precipitation is necessary.…”

Section: Discussionmentioning

confidence: 99%

Biomineralization of Nickel Struvite Linked to Metal Resistance in Streptomyces mirabilis

2022

View full text Add to dashboard Cite

Biomineral formation is a common trait and prominent for soil Actinobacteria, including the genus Streptomyces. We investigated the formation of nickel-containing biominerals in the presence of a heavy-metal-resistant Streptomyces mirabilis P16B-1. Biomineralization was found to occur both in solid and liquid media. Minerals were identified with Raman spectroscopy and TEM-EDX to be either Mg-containing struvite produced in media containing no nickel, or Ni-struvite where Ni replaces the Mg when nickel was present in sufficient concentrations in the media. The precipitation of Ni-struvite reduced the concentration of nickel available in the medium. Therefore, Ni-struvite precipitation is an efficient mechanism for tolerance to nickel. We discuss the contribution of a plasmid-encoded nickel efflux transporter in aiding biomineralization. In the elevated local concentrations of Ni surrounding the cells carrying this plasmid, more biominerals occurred supporting this point of view. The biominerals formed have been quantified, showing that the conditions of growth do influence mineralization. This control is also visible in differences observed to biosynthetically synthesized Ni-struvites, including the use of sterile-filtered culture supernatant. The use of the wildtype S. mirabilis P16B-1 and its plasmid-free derivative, as well as a metal-sensitive recipient, S. lividans, and the same transformed with the plasmid, allowed us to access genetic factors involved in this partial control of biomineral formation.

show abstract

“…It is known as a process mediated by different microorganisms, (i.e. bacteria) for minerals formation based on numerous ions present in the surrounding environment [328]. Numerous minerals such as calcite, jarosite, dolomite, siderite, vaterite and kaolinite can precipitate due to the microbial activities…”

Section: Biomineralizationmentioning

confidence: 99%

Insight on water remediation application using magnetic nanomaterials and biosorbents

Maksoud

Elgarahy

Farrell

et al. 2020

Coordination Chemistry Reviews

218

View full text Add to dashboard Cite

Adsorption to date is the most effective and utilized technology globally to remove several pollutants in wastewater. In this approach, many adsorbents have been synthesized, tested and used for the elimination and separation of the contaminants such as radionuclides, heavy metals, dyes and pharmaceutical compounds both at lab and industrial scale. However, there are many challenges to adsorption processes such as reducing the high cost, through means of separation of suspending adsorbents to be used again, as well as the ease to synthesize. Two methods that have shown promising results and gained significant interest is that of magnetic nanomaterials and biosorbents due to their effective, safe, eco-friendly, low cost and low-energy intensive material properties. Magnetic nanomaterials act as efficient adsorbents due to their ease of removal of contaminants from wastewater using an applied magnetic field but also their advantageous surface charge and redox activity characteristics. On the other hand, biosorbents have a synergistic effect with their efficient adsorption capacity to remove contaminants, high abundance and participation in waste minimization, helping alleviate ecological and environmental problems. This review highlights, discusses and reports on the state-of-the-art of these two promising routes to adsorption and provides indications as to what are the optimum materials for utilization and insight into their efficiency, reusability and practicality for the removal of pollutants from wastewater streams. Some of the main material focuses are zero-valent iron, iron oxides, spinel ferrites, natural and waste-based biosorbents.

show abstract

Biomineralization based remediation of cadmium and nickel contaminated wastewater by ureolytic bacteria isolated from barn horses soil

Cited by 80 publications

References 19 publications

The Isolation and Characterization of <i>Glutamicibacter</i> DC1 to Induce Carbonate Precipitation of Some Heavy Metals at Low-Temperature

The Isolation and Characterization of <i>Glutamicibacter</i> DC1 to Induce Carbonate Precipitation of Some Heavy Metals at Low-Temperature

Biomineralization of Nickel Struvite Linked to Metal Resistance in Streptomyces mirabilis

Insight on water remediation application using magnetic nanomaterials and biosorbents

Contact Info

Product

Resources

About