The urease-based microbially induced carbonate precipitation (MICP) is known as effective remediation strategy in soil metals remediation; however, all related studies confined to bioaugmentation. In the present study, biostimulation process was adopted for the first time in accelerating MICP in copper (Cu) immobilization in soil. The abundance, composition, and diversity of the bacterial community after biostimulation were assessed with MiSeq Illumina sequencing analysis that confirmed number and types of ureolytic and calcifying bacteria grown significantly leading to MICP process, compared to untreated soil. The results demonstrated that biostimulation induced calcite precipitation in soil that immobilized Cu mainly in carbonated fraction of soil, while soluble-exchangeable fraction decreased from 45.54 mg kg to 1.55 mg kg Cu in soil. Scanning electron microscopy (SEM) cum energy-dispersive X-ray spectroscopy (EDX) evaluated structure and elemental composition in Cu immobilization after biostimulation. Fourier Transform-Infra Red (FTIR) spectroscopy depicted functional chemical groups involved in copper immobilization, while X-Ray Diffraction (XRD) identified main crystalline phases or biominerals formed during biostimulation in order to carryout Cu remediation from soil.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhazmat.2019.01.108 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Organic acid release and microbial community assembly driven by phosphate-solubilizing bacteria enhance Pb, Cd, and As immobilization in soils remediated with iron-doped hydroxyapatite.
J Hazard Mater
January 2025
School of Metallurgy and Environment, Central South University, Changsha 410083, PR China. Electronic address:
Although iron-doped hydroxyapatite (Fe-HAP) and its composites have been reported to immobilize arsenic (As), lead (Pb), and cadmium (Cd), its practical application is limited by the inefficient release of iron and phosphate. In this study, Ochrobactrum anthropic, a phosphate-solubilizing bacterium isolated from a lead-zinc smelting site, was employed to enhance multi-heavy metal immobilization in Fe-HAP-amended soils. O.
View Article and Find Full Text PDFSimultaneous removal of nitrate, carbamazepine, and copper by fulvic acid and ferric chloride composite modified ceramsite assembled fixed biofilter reactor: Performance and microbial community response.
J Environ Manage
January 2025
School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
The complex pollution and nutrient-poor characteristics of surface waters result in the limited ability of conventional reactors to remove pollutants. In this study, a novel modified ceramsite material, modified with trivalent iron (Fe(III)) and fulvic acid (FA) to form ceramsite@Fe(III)@FA (HC), was used for the first time as a biocarrier to immobilize strain Cupriavidus sp. W12, constructing a biofilter to enhance nitrate (NO-N) removal in micro-polluted water.
View Article and Find Full Text PDFWater quality performance of vegetated compost blankets for highway stormwater management: Particulate matter and trace metals.
Sci Total Environ
January 2025
Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742, USA.
Urban stormwater pollution poses serious risks to human and environmental health, including trace metals toxicity. To improve the performance of existing highway Vegetated Filter Strips (VFS), which have limited performance for volume reduction and pollutant removal, amendment with a Vegetated Compost Blanket (VCB), a layer of seeded compost, has been proposed. A novel VCB/VFS system was assessed as a Stormwater Control Measure (SCM) via particulate matter and trace metals removal performance.
View Article and Find Full Text PDFLoop engineering of enzymes to control their immobilization and ultimately fabricate more efficient heterogeneous biocatalysts.
Protein Sci
February 2025
Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), San Sebastián, Spain.
Enzyme immobilization is indispensable for enhancing enzyme performance in various industrial applications. Typically, enzymes require specific spatial arrangements for optimal functionality, underscoring the importance of correct orientation. Despite well-known N- or C-terminus tailoring techniques, alternatives for achieving orientation control are limited.
View Article and Find Full Text PDFAntibacterial and Anti-Inflammation Activity of Titanium Alloy by Efficient Copper Immobilization.
Langmuir
January 2025
Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
Titanium alloy plates are often used for fixation to bone. However, the plates often need to be removed due to infection and adverse inflammation. To avoid these problems, we immobilized copper, which has antibacterial effects and low cytotoxicity, on titanium plates by immersing the titanium in copper-tris(hydroxymethyl)aminomethane complex solutions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!